specification-420-245kv-ct-1583727729.pdf - BHEL

" rut in. BHARA THEA VY ELECTRICALS LIMITED

TRANSMISSION PROJECTS ENGINEERING MANAGEMENT

I)OCUl\IE~T No. TB-408-SI 0-1 05 I Rev. No. I 00 Prepared Checked Approved

TYPE OF TEOINICAL SPECIFICATION NAME NT ~~S AG DOC. TITLE SIGN

I~ V~ ~') :()u 1\ 420KV/24SKV CURRENT TRANSFORMER DATE

GIIOUl' TBEM W.O. No

CUSTOMER POWERGRID

PROJECTS Substation Package SS-19 : Extn of765kY Sola pur, 765kY Aurangabad, 765kY Wardha , 400kY Khandwa, 400kY Raj garh, 400kY Champa, 400/220kY Itarsi, 400/220kY Jabalpur.

0>' r 1i -'~

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CONTENTS u ~ 02':: r 0 u '" !.U ~ d¥ Section Description No. of Sheets ,.. .-

>-~-5 t: 1.I.l9 -' = <i-"5 ;::;2 " J. SCOPE, SPECIFIC TECHNICAL REQUIREMENTS & 8 z _ ~ L:.J< C Cl :::t '5 ~CCI~ BILL OF QUANTITIES z'o >, o ;>. ~ U t:: ::- ANNEXURE A I &A2- Technical PQR 2 Q ~ z it § < ~ . !:

ANNEXURE-S- Pre-commissioning checks (only for reference) 20 rob Z-5ti Q .::! .g ANNEXURE-C- Pre-commiss ioning Formats (on ly for reference) 16 "'-'0 >- 5 .:: 0. E " 0" 0 U u .... 0-= '0 U

.~ ~ .s:a: 2. DETAILED TECHNICAL REQUIREMENTS - 34 gl o " EQU IPMENT SPECIFICATION .2 u -.0 . -E 2 ..E .: , PROJECT DETAILS AND GENERAL SPECIFICA nON 71 .S ~ J. u 0 ¢: .:: (including Annexures)

4. NIL

5. CHECK LIST (TO BE FILLED AT TENDER STAGE) 6

Rev No. I)" te Altered Checked Approved REVISION I)ETAILS Distribution TBMM mQM TBCM TBTS

Copies 2 - - -

SUBSTATION PACKAGE SS-19 FOR POWERGID BHARAT HEAVY ELECTRICALS LTD 420kV/245kV CURRENT TRANSFORMER Doc. No. TB-408-510-105, Rev. No.-00

SECTION 1

SCOPE, SPECIFIC TECHNICAL REQUIREMENTS AND QUANTITIES

1.0 SCOPE

This technical specification covers the requirements of design, manufacture, testing at works,

packing, dispatch to sites and supervision of testing & commissioning at each site of

420KV/245kV Current Transformers complete with accessories as listed in clause 4.0 below.

This section covers the specific technical requirements of 420KV and 245kV CT.

The specification comprise of following sections:

Section-1: Scope, Specific Technical Requirements & Bill of Quantities

Section-2: Detailed Technical Requirement - Equipment Specification

Section-3: Project Details & General Technical Requirements

Section-4: Guaranteed Technical Particulars (NOT APPLICABLE)

Section-5: Checklist

In case of any conflict between various sections, order of precedence shall be -

Section-1 shall precede Section-2, Section-2 shall precede Section-3

Note: The terms used in this specification namely,”Employer/Purchaser” refers to Powergrid,

“Contractor “ refers to BHEL & “Sub-contractor” refers to successful bidder.

1.1 The equipment is required for the following Projects.

Name of Customer : Power Grid Corporation of India Ltd.

Name of the Project : Substation Package SS-19 : Extn of 765kV Solapur, 765kV

Aurangabad, 765kV Wardha, 400kV Khandwa, 400kV Rajgarh, 400kV Champa, 400/220kV

Itarsi, 400/220kV Jabalpur.

Refer Section - 3 for Project Details and General Specifications.

2.0 SPECIFIC TECHNICAL PARTICULARS

a) Technical Parameters of 420KV and 245KV CT:


S.No. Description of parameters Data

1. Max. System Voltage 420/245 kV

2. Rated frequency 50 Hz

S.No. Sub-Station System Fault Level Min. Creepage Distance

1. 765kV Solapur 40kA for 1sec 25mm/kV

2. 765kV Aurangabad 40kA for 1sec 25mm/kV

3. 765kV Wardha 40kA for 1sec 25mm/kV

4. 400kV Khandwa 40kA for 1sec 25mm/kV

5. 400kV Rajgarh 40kA for 1sec 25mm/kV

6. 400kV Champa 50kA for 1sec 25mm/kV

7. 400/220kV Jabalpur 40kA for 1sec 25mm/kV

8. 400/220kV Itarsi 40kA for 1sec 25mm/kV

For Detailed Technical requirement of 420kV and 245kV Current transformer refer Section-II of the

technical Specification.

b) Refer Section-III for general technical requirements for the project.

c) The offered current transformer shall conform to the latest version of IEC 61869-1 & 61869-2 or

IS:2705 Part -1 to 4.

d) 420kV CT and 245kV CT shall be with Polymer insulator.

e) If SF6 gas filled CT is offered , it shall be with suitable SF6 gas density monitoring device with NO

& NC contacts for remote annunciation and tripping in case of SF6 gas leakage.

f) The common CT junction box for set of three (3) CTs are not in scope of supply of bidder.

g) Terminal connectors are not in bidder’s scope of supply.

h) The supervision of testing & commissioning (including pre- & Post commissioning testing) of the

offered CTs is in scope of bidder. Scope as follows-

Document No. CF/CT/04/R-4 dtd 01.04.2013 under POWERGRID document

D-2-01-03-01-04 to be referred for pre-commissioning procedures and formats. The same

will be available at respective sites.

All tests as per document above including tests after commissioning/ charging shall be in

scope of bidder.

Any additional test based on specialty of the item as per field Q.P / instruction of the

equipment supplier or customer shall be performed, the cost of same shall be included in

quoted price , no additional price implication will be entertained during contract stage.


Arranging instruments for conducting tests shall be in BHEL Scope. However arranging any

product specific or proprietary tools, tackles, instruments required for conducting the tests on

offered CT shall be in bidder’s scope and shall be listed out during detailed engineering.

DGA Test on Oil Sample - Arranging oil sampling device, bottle, syringe etc (on

returnable basis) for DGA test of oil of the offered CTs as per above mentioned

document shall be the responsibility of bidder (including DGA test after one month of

charging and before completion of one year of charging). The oil samples from CTs

shall be taken by ETC contractor of BHEL under supervision of bidder using oil

sampling devices brought by bidder (on returnable basis). The collected oil samples

shall be handed over to BHEL/Customer for testing. Charges for testing are not in

scope of bidder. Successful testing of the supplied CTs is the responsibility of bidder.

Repetition of oil sampling till successful testing and replenishment of oil after sampling

if required shall be in scope of bidder. Price for the same shall be included in quoted

price. No additional implication in this regard will be entertained during detailed

engineering.

Supervision of testing & commissioning of the offered CTs shall include ensuring that the

CTs have been installed & terminated in all respect.

If any fault/damage to CT occurs due to the installation/hotspot/clearance issues etc in the

CT, then the repair, refurbishment, replacement of the damaged CT including to and fro

transportation from manufacturer’s works and respective site shall be carried out by bidder

without any price or project time implication to BHEL during contract stage. The

replaced/repaired/refurbished CT (or part of the CT) shall have additional two(2) year

warranty without prejudice to contractual warranty period.

i) The respective dates of commencement of erection, pre-commissioning, commissioning (including

tests after charging as per pre-commissioning document referred above) and trial –run activity by

BHEL will be intimated to the equipment manufacturer from time to time , so that arrangements for

supervising the activity can be made accordingly by the manufacturer.(however, the travel, lodging

and boarding expenses for each visit of the bidder’s engineers shall be borne by the bidder.)

j) Bidder shall supply 2 Nos oil sampling device for every 20 Nos. of oil filled CT supplied, with a

minimum of 2 Nos oil sampling device for each substation.

k) Please refer clause 10.0 and Annexure-V of Section-II for defect liability requirement.

3.0 TECHNICAL QUALIFYING REQUIREMENTS:

Please refer Annexure –A1&A2 of Section-1 for Technical Qualifying requirement of the project.


4.0 SITE WISE BILL OF QUANTITY:

S.

No. Description Unit

Total

Quantity Remark

I a.

For 400kV Rajgarh S/s (Extn):

420KV, 3000A, 40kA with

120% extended current rating,

1-Phase Current Transformer

No. 3

Current Transformer along with

mounting hardware complete in all

respect excluding support structure,

clamps & connectors and common

Junction Box.

I b.


Mandatory Spares :

420KV, 3000A, 40kA with



No. 1





Junction Box.

I c.


Supervision of Testing and

commissioning.

Lot 1


commissioning (including Pre/Post

commissioning tests as per TS)

I d.


Supervision of Oil sampling

required for DGA test for CTs

within first month of

commissioning.

Lot 1

I e.




between 6 months to 12

months of commissioning.

Lot 1


S.

No. Description Unit

Total

Quantity Remark

II a.

For 400kV Champa ( Extn) S/s :

420KV, 3000A, 50kA with



No. 3





Junction Box.

II b.


Mandatory Spares :

420KV, 3000A, 50kA with



No. 1





Junction Box.

II c.



commissioning

Lot 1




II d.


Mandatory Spares :




commissioning.

Lot 1

II e.




between 6 months to 12

months of commissioning.

Lot 1


S. No. Description Unit Total

Quantity Remark

III a.

For 400kV Jabalpur ( Extn) S/s :

420KV, 3000A, 40kA with



No. 6


mounting hardware complete in

all respect excluding support

structure, clamps & connectors

and common Junction Box.

III b.


Mandatory Spares :

420KV, 3000A, 40kA with



No. 1






III c.



commissioning.

Lot 1




III d.





commissioning.

Lot 1

III e.




between 6 months to 12 months

of commissioning.

Lot 1


Quantity Remark

IV a.


245KV, 1600A, 40kA with



No. 3







IV b.


Mandatory Spares :

245KV, 1600A, 40kA with



No. 1






IV c.



commissioning.

Lot 1




IV d.





commissioning.

Lot 1

IV e.




between 6 months to 12 months

of commissioning.

Lot 1


Quantity Remark

V a.

For 220Kv Itarsi ( Extn) S/s :

245KV, 1600A, 40kA with 120%

extended current rating, 1-Phase

Current Transformer

No. 3





Junction Box.

V b.


Mandatory Spares :

245KV, 1600A, 40kA with 120%

extended current rating, 1-Phase

Current Transformer

No. 1





Junction Box.

V c.



commissioning.

Lot 1





V d.





commissioning.

Lot 1

V e.




between 6 months to 12 months of

commissioning.

Lot 1

Note-

a) Total contract value may vary upto ±20% at contract stage.

b) The price quoted against supervision of testing & commissioning and supervision of oil sampling

shall include to & fro travel charges and charges for lodging & boarding.

c) Multiple site visits may be required as per site readiness.

5.0 QUALITY ASSURANCE, TYPE TESTING, INSPECTION, TESTING & INSPECTION

CERTIFICATE

Please refer clause 8.0, 9.0 & 10.0 of Section –III.

6.0 ANNEXURES TO SECTION-1

Annexure-A1&A2 : Technical Qualifying Requirements for 420kV and 245kV Current

Transformer.

Annexure-B : Pre-commissioning checks (ONLY FOR REFERENCE)

Annexure-C : Pre-commissioning Formats (ONLY FOR REFERENCE)

ANNEXURE-At

TECHNICAL QUALIFYING REQUIREMENTS

For 420 kV Current Transformer

The manufacturer shall meet the following technical requirement as stipulated here-

(i) The manufacturer(s) whose 400kV equipment(s) are offered, must have, manufactured, type tested (as per IEC/IS or equivalent standard) and supplied 345kV or higher voltage class equipment(s), which arc in satisfactory operation# for atleast two (2) years as on the date of NOA*.

(ii) Alternatively, the manufacturer, who have established manufacturing and testing facilities in India for the offered equipment and not meeting the requirement stipulated in (i) above, can also be considered provided that-

a) 345kV or higher Voltage class equipment(s) must have been manufactured in the above Indian works & type tested (as per IEC/IS standard) and supplied as on the date of NOA.

b) Contractor shall furnish performance guarantee for an amount ofl0% of the ex-works cost of the equipments(s) and this performance guarantee

shall be in addition to the contract performance guarantee to be submitted by the contractor.

Note: # - Satisfacto'Y operation means certificate issued by the Employer/Utility

Certifjing the operation without any adverse remark.

*- NOA stands for Notification of Award issued by Powergrid to BHEL for referenced project. Date of NO A is 29/07/2019.

~ ~).\')P Approved

•

ANNEXURE-A2

TECHNICAL QUALIFYING REQUIREMENTS

For 245 kV Current Transformer

The manufacturer shan meet the following technical requirement as stipulated here-

(i) The manufacturer(s) whose 220kV equipment(s) are offered, must have, manufactured, type tested (as per IEC/IS or equivalent standard) and supplied 220kV or higher voltage class equipment(s), which are in satisfactory operation# for a!least two (2) years as on the date of NOA *.

(ii) Alternatively, the manufacturer, who have established manufacturing and testing facilities in India for the offered equipment and not meeting the requirement stipulated in (i) above, can also be considered provided that-

a) 220kV or higher Voltage class equipment(s) must have been manufactured in the above Indian works & type tested (as per IEC/IS standard) and supplied as on the date ofNOA.

b) Contractor shan furnish performance guarantee for an amount of 10% of the ex-works cost of the equipment(s) and this performance guarantee shall

be in addition to the contract performance guarantee to be submitted by the contractor.

Note: # - Satisfactory operation means certificate issued by the Employer/Utility

Certifying the operation without any adverse remark.

*- NOA stands for Notification of Award issued by Powcrgrid to BHEL for referenced project. Date of NOA is 29/07/2019 .

.-:-: 3J,).,l U \ \ \

l~).. 1P Approved

[rQR R.~fE R:eN'Ct;" G'lNVj1 r~ ___ . DOc I 0 D-2 -0 1 -03-0 1-04~~;:;;;::;;;'J:;;;:;;:;::;;;;;;=======::.iI~Iii:z.uF

PRE-COMMISSIONING CHECKS/TESTS FOR OTHER SWITCHYARD EQUIPMENTS

Once erection is completed, various pre-commissioning checks/ tes ts arc perfonned to ensure rhe healthiness of the switchyard equipments prior to thcir energisation. Various major electrical tests to be perfOlmed and their signiEicanceare given below:

6.1 Tan 6 & Capacitance measurement of CT, each stack of CVT & total capacitance, CB voltage grading capacitor & each stack of Surge Arresters

The purpose of the dissipation factor measurement of high voltage insuhHion is to detect incipient weaknesses in i-IV inSlll~tion. The nlost important benefit to be gained from this measurement is to obtain a "benc!lJuark reference reading" on costly and high voltage equipment when the equiplnenl is new and insulation is clean, dry and free from impurities. Tan delta & Capacitance values shall be comparable with factory test results and in no case shall be more than 0.5 'Yo.

6.2 Checks/ Tests applicable for CTs

6.2.1

6.2.;2

6.2.5

Polarity test for CT

Magnctu.ation charactcristics ofCT

Ratio test lor CT

I R measurement of CT (Primary & Secondary windings)

DGA lest ofCT oil

To ascertain whet her the poln.rity markings are correct or not as per drawing.

To prove that the turns of CTs .econdary windings are not short circuited and to check healthiness of CT cores. The ma!:-'11cli7ing cUlTents at KPV (Knee point voltage) shall be less than the specified value. The ratio of secondary and primary voltage sha ll also be measured.

The ratio crrors of the primary to the secondary cUlTents should within specified ratio CITors.

C hanges in the nOlmal IR value of T indicate abnomlal conditions such as presence of moiolufc, dil1. dust, crack in insulator of CT and degradation of insu lat ion.

This tesl ball be conducted after 30 days of commissioning. Thc purpose is to identify evolving faults in the CT and DGA v111ues shall be comparable with factory values (ifavailable)

6,,;\ Glle"ksl-+est~able fer Circult-Brealiers

Dew~f)O~nl-{HcaSllr.CtnCnl

Gf,.S.(::6..gas Dcw - 1*>i.1 t-<.lf~-iJ;....t('l--m"asum-+llois.(ucc-co"t "nl-i" S (::6-g3. hich-sha Il-iR<l,ic;a IG-Whctl",>-Gg ""acual i e n- is Gone pFOpcFly af Rek :r~ii; lest si1>H1 be earFi" .1 aul pr.cfcrably at Fal"d-t>r-cssHfG-eI:.&f.i6..gaB.

~"'. __ • __ • ___ I '''''''''''' __ '~'_'W'W·_. ~ ___ w._--'·.·.·-.!\. ____ ~_~. _._W._M __ . __ .w ....... __ _

Pre-Cormfnsslonlng Procedures For Switchyard EqUlp" ents 39

B wake< (.}p.::r-iHtJ'Ig l' o.1i%", t.lcludffig PI R -llm'ng~

DCRM Contact Travel Mea,uremcnl DC inJecled GlIrient, and tnptc~G6c c-Gil current,.

------------------Operatimlal check IRg lor CHClIiI [lre$~rs

lOCKout EHV

shoold be wilhil-1--t}el'AWiSii)kl-l+mit .. an&"IIaIl be comparahle with ractory-""Iu~'. Pok:-dibcrcpanclcs alHi Break t<l IJrcak dlscl'cpancics-shall bc.lcSb th~n .pecified v.a lues .

[)CRM is the-tcch"~w-fof measuring Contact ReW;taRw during op"""t iol'l-{Close, Trip) of a ci rculi hreaker w.th a delay Too of,,,WIlI11£.A D current ef at least J{)() AIllp-is injected th.rough tlte circuit b",",ker, nHl Ut r 'lit .lI1d ¥()ll.ag1Hiror ar~mllasuwd an<! r.c~iSlar\c.c i~kH,,1I The resistaOCC-3nd- travel " ersu&-tHRc {ja!3-f'- ide,;. useful mformatlon on the condition-of t-OOeirGUit breaker contacts and-is. l-lllCll II. a .diagnostic tool. DbRM {cst signalUres ~h:,U be--ilf'pr-oved by Corporate-GS.

li.J-ensure-v"l'i·(}uS ioGkOI<l operation ... r .c~-by simulating the -actusl4:ondit,iolls at the specified -pl'Cssur-o--of 011, :m operalil1g-modi UIll ,

6,J...!i Measurement of sllni<: Tb is test i-s-GGI1{jU\lll.'<l-io.e" .. luate llealtJ1.ine-ss of Main contact resistance contacts. J.{)O- Affip-DC is. injected nd-voll1lgG- dwp Ib

mea5ul'c{lacfGSS-03Cb CB cont<lct- !O - camput., cOIllaCl _____ _____________________ ~r~c~~i~s!~a~n~ce~-~ ______________ __

6,].')

GMGk·'og the f1U1l1ping-feature

fllj... ~iving si nlll l1:H1eOu!H>i,,~e/- trip c<>Inma<'lds.-GS-mml-ing .haU <lot take-j}l~poralien .. r Mech3Ri~l.LEklctricaJ ailli PumpiRb'-l~arul'\h ---------

CheG~ng !lie Anti- T·e-Gh'lC~ el "P"rat.i()fl-ol~lat 'pro¥ldcd Im-3llti C.oRdenl!3Ma Heaters Gondcn..ati<>lJ..neater .. ,

~--------------------P"le d'<lCrel)llflcy relay To les[ tr~ppiJ1j}-{lI=-CB in case-of polc-.Jiscrepancy more tcsllng tllan-.2~",oo(j6-or SPCCIf, ed-value.

CIlC\llHng the pFimmg pressure

------------N2 TIM" lest-4~cck hea llhinc.<;,,- ~'GUnlUlaWFS

I*<'vKlcd >n l-lyer.mliG drive R1e<>lIa.IlisnlJr. N:I. priming pr"",sllr~ij.bCHI&-jlCr the-r.aled-llf-€<StI.r-0;

6.4 Checksl Tests applicahle for CVT,

6.4.1

6.4,2

CVT pOlarity. Ratio te"t

Insulat IOn resistance measurement of Primary & secondary winding

I hi S test is conducted in the same manner as j()r CT to determin e correct CVT po larity. ratio and phasor group .

Changes in the nannal IR val ue o f CVT ind icate abnomlnl ~o ndit ioos >ueh as pr0sence o f motsrurc. din . dust, crack in insulator o r C VT and uegradarion ol ll1sulation.

~. 5,.j. MlLLlVO", Q.mp-lesl TI1<.'-Veifdg<!-<lro]}--giW-lHl measure af resistance-of..:un'cm ~ing p;m-alld .c-offiaGlS-by-iajecHng minimum I IlO-A-DG current.

·10

Doc No. D-2-01-03-01-04 ISIDI_

~ .}Q...ef3cratioll tests =HH.~p<l""t~ iliaci' I will+-jumf3er~ GIlRRCGIOO anG..<;o>1lca{;t- resi!;tanc e-b mtla&Bred~a[l~oJ}0Fations.

:r-he.rG-£ha-l.!-nGl-be-aR¥-changc-frolll-t hc-pr.e",i OI~S va I ue.

(,.6 Checksl-'fests-applic-<lbk>-for Surg~ Arrestors

Third Resistive (TlIRC) arresters

M<tmlon·ic Current

for surge

IR mea,uremcn! of cash sl"cl<-o~LA

T.o moruIGF-IIca J.thi.ncS&-of--8ur.ge -a.Hest()r~ lJ.y m().nit()~ing

IhiRl harm<mic resistive curmnt from tbe leakage eLlHcn1. Tbis lcst-i£-te oo.ooaduG\{)(1 aftcr-chargil1!!; of bas. ~-hc valuo ofTHRC- shaH be less than 30 ~A.

Chanf,'Cs ill thc-nonnal IR value of LA indicHto abnormal conditi ons· such as. presence of 1ll0islUre,dirt,-<iu5t,-c.fack-i 11 i nsu la tOHlf--bA-and-dc gradation-{ll' ;nsul aliO>1.

~-------------------------------------------------------------~--------------------------------~ 606.3 Gheckiug.-ot:operalion of This test is done 10 check- the-hea lthiness of LA counter.

LA ~eul1lcr

6.7 Checks/Tests for other areas/ equipments

6.7.1 Earth resistance 111easurclncnl

6.7.2 Secondary cunent injection lest

6.7.3

6.7.4

Contact Tightness check of Bay contacts by Primary injection method

Stability check for Bus Bar

To ensure value of earth resistance is below I ohm.

Conducted for testing of protecting deviccs, cireuil hreakers , trip coils. motor overloads etc.

Since complete bay contaci resistance mcasurcment is practically lIot possible because DC current may not he injccted in CT primary, hence contact tightness check by primary injeclion mcthod has been introduced to check overall contact lightness.

This test is performed to check (he proper operalion of Bus Bar protection by simulating actual conditions. Any problem in CT connection, wrong cabling, relay setting can be detected by this lest.

__________ ~ ___ ~._. ____ ,_. ___ ~i· .~._._. __ ,_._ .. ~''''. _______ • _

PIe-CommissIOning Procedures For Sw;lchyard Equipment. 41

ft. I ·1 \ IH LI \ &. (". \I',\C11 \ '<C I. '11-. \~lIRr:\Il.'\ 1 01 ( I. C' I . ( B \ 01 I \<.;F( ; I{ \DI (a \J'H IT()I~S \ III \"'TH "'''

42

To mea,u re dissipa li on ra~lor los!> lac lor (Ian della) and Capacitance 111~;hur~lI1~n[ "rLHv clas~ CTs. ("VTs. CI3 Volwge Cirudi ng Capacllol' & LA slack:; by apply II1g Icsi \ "lIug~~ up 1010k \ .

A) CURRENTTRA.~SFORI\ILRS

2.

3. 4 . 5. 6.

7.

Il)

1 , .'. 4 . 5.

(, .

7.

C) I.

2.

T~n delta lap 10 he diSCOl1l1CClcd ["rom ground. Illgh v"!tage lead from Ian dclll1 killo b~ ""nnccted hl pi imarylll V I Tcnnll1al and LV lead 10 he conncclcd In Ihl! ran dclw ICSI wr. r I and P2 to be shorted I'mcda1l1 Sill lil~C to be Ihoroughly cleaned. VI ea, urCll1cn t s hi" c to be taken in lJST mode with fully aUlolllat ic t cst ki L Standard pron,dure(as specltied by ki l supplier) for IIlca.unng capacllance and [an della 111 charged s\~llchyard tnduccd vollage cond it IOns should ()e fo llowed lor measurement of capac itance and lOll delta vailies. [I i~ 10 be ensured III cnnneClth ~ t.:,tla p tn ground terminal" tier carry ing out lhe lest.

CB \'OLTAGEGRADI.~(;C \PACITOR

COllnect LV cable tnlhe mi lldlc of !he douhle inlerrupter. Connect' 1\ cabk to the olherend "ftlle GradlOg Ca p'lcllor to be te~ led .

The opposite end oi"thc !,'Toding capacilo l has III be grounded usmg carlh ,\\ IIch Mca'ur~lllent' have In be tnken III LS I Mode wllh full y lllllomanc lest kit. DI,cOIlOcci!he IIV cubic amJ connect Ihe same to the other grading capacitor Dnd gTllunu the pre\' iollS gmding capacitor. Nm\ the scconu gmdingcapacilor is rcady Ii" lestlng. Standord pmccdurc (as 'peclli~d by kll supplier) for measuring copJeilancc and lall della III charged s\\ ilchyardJ induccd voltage condi tion, should be followcd Mensurcmcnts are 10 be carried <lUI at 10k Vi 11 K V.

C.\ I'ACITOR VOL! ,\G E TRANSFORMERS

Testing procedure for Top and Middle Sla,ks: (a) ,\pply InK V b~t\\"ccn Il ,rnge. of T "piM Idd le sl.ld,s I \\ hlch~\er IS bemg

lested) (h) Clirry oulmC3SlIrell1Cn15 inl,s I mode al 10.0 K \' (c) V. hi Ie measuring Middle ' Bottom stach. TtIP! miudle stacks III h~ . 11I1rtcd

resling proccdule lor Bottolll S(;Jck conncct~d 10 I.M L PT (n) Cnnneetl lV (li lhe tesl kU3tlhc lOp nange ofhollOill slllck . III pointlU be

glollodcd ,",Inil cOl1n~cti(}n o f the neutra l lOf the I'T to he lIpcncu Is"laleu from grOlll1U

(b) Top "f C\ 1 tu be guarded. LV lead [lf lhc ku '0 h.: con necled at t he top of the c\ r til r gllardJllg.

:>ro- COrrtfT116tiK)IWlg Procedures For S~ IIc:hi(olrd rqUlpmcnlb.

"f/OJ.O

I'd . F'fIF

____ Due No. 0-2-01-03 01.0-l ______________ IIiii~-ij::lilc

(c) Carry out measurements in GSTg mode at 10.0 KV (d) Repeat the Test with neutral ofPTconnected to ground. (e) In case Tan delta va lue is negative or erratic , only capacitance values are to be

monitored. (f) McasLlrcmentto be carried out using fully automatic kit.

3. Standard procedu re (as specified by kit suppli cr) for measuring capacitancc and tan delta in charged swi tchyardl induced vo ltage conditions should be followed.

Ilj S U RG &A-RRES+ERS

-k +est-illffFGGe-Gur~~iddlc.al)d Botlom.&aGler. W Apply I Q KV bClwcm'l-ilaHgc&-{}l'-"r-epIMiM·)e1 BeHem stacks+w-hibhc"cr-is

eoolg-.tcstOO) fb1 CarrY-Gut-mcawromcAls in U~T t~~w-itlJ..Cully.a.ul()Alatic leSl kil. 8;-) W.hi·IG-mGawfi.Al}M-idGl~t{ffil-&tacks, Ih(}.6ta 0l<cs-ab(We-+I~

sOOr~.oo..

b Stafl{jani pF8GcdufG.{a ' sj'lcGi·fiGd-by kit stlppli<lf) fer mcaS\~-taA

delta in chargcG switcilyarQ/ inGtlGtlG "81lage C8RGiliGfl&.OhetllG be fell8wc--G,

J.. Wlli.lc4»ng-me3surcmcnt e fbett-Gm-&t<l<>k-4G-<la riA CGnneG\,iGIl-tO-~~

6.2 CHECKS/TESTSAPPLlCABLE rORCTs

6.2.1 POLARITYTEST FOR CT

A centre zero vo ltmeter is con.nec ted across CT secondary. A 1.5 Volt battery is touched to primary ofCT. The deflection of pointer should be simila r in case of each CTcore.

At any instant current entering the primary from P I the current should leave secondary from the temlinal marked S l. A setup shown In the Figure 9 can show whether the polarity markings are correct or not.

When the key is pressed, current enters the primary through tenninal PI, the voltmeter con.nected as shown, should read positive. A general arrangement of polarity tesr setup is indicated in Fig. 10.

P2

\ KEY

- ..L 1.5 V

----> P1

Figure - 9

/ \ ( V ,

~. S1

Pre-Comrtllssionlng Procedures For SWitchyard Equipments

R Y B

P1 P1 P1

Figure-IO

43

t .. J 1 I ) 1 I 1 --0.2.2 \J.\G",KIILAIIONCHAllACTERIS·IICSOFCTs

"REC H1T10NS

3) Thcre shoultl I", no joints In le,ling kad,'cables. b) II "huuld b~ ensured that wbule t":,ling ~qllirmcnl alnng \\llh lesl ing procedure, Me

J\ Jlbhle ill tesling Sil~. I "stln!!-llllls1 h~ caITi~d ou t In pre,~nec (lflCslmg personnd "nly .

lest ICquipmenl: Vollage suurce of 5 h- \. Voltmeter "r,ange (J 10 5 \c\', AllllllCICt (II mnge () 10 500 A Illp. ,tesling leads /cooks elL'

Test Procedul'l': M.tI,e wnnec llOns as pcr diagrmn shown below (f ig- I I) . After making proper connec tions. applted vullage is incrca,cu Iroll1 zero 10 rated Knee I'(>int Voltage in siers 01 ~5" .. , 50" U. 75% and I OO~". Measure the curn:nt llrawn hy Ille CT scwnllary wrc Jt respeclive applied vohages and record Ihe lesl results

0-500 rnA

5kV 0- 5 kV

Figurc - I J

Knee POll1t Voltage IS r1llmluliy defined ~s Ille I'ollage at \\hich 10"" increase In lhc applied vvhagc ('auses 3010 50"i" ,"creuse in secondary current. The magnetizalion ClIrrCnl al rated Knee I'nim Vollage should nnt b~ more Ihan the spec i ficJ'dc:;lgncd "I lUI!. A curve C,In he drawn b~twcel1 appli.!d I n llagc and Illugocli(lng cllrren!. 1\ prcully. Ihe CUf',C Jra" 11 should he like the one gllel1 belo" 111 Fig,- Il.

__________________ .. _v .. ____________ _ 44

b / '0

_ ••• _ DOC No. D 2·01-03-010-1

600

500

W 400

~ I- 300 ...J 0 >

200

100

10 %

MAGNETIZING CURRENT

30%

TYPICAL MAGNETIZATION CURVE

Figure - 12

From the curve it can be implied that up to rated KPV (Knce Point Voltage), tbe VI curve should be almost a straight line . However, if this line is not linear, thi s indicates that the magnetizing cha racteristics are not desirable. If the slop of the curve starts increasing, it indicates that magnetizing induction becomes low and total primary current is utilized in exciting thecorealone. Consequently, out put ofCTsecondary disappears.

6.2.3 RATIO TEST FOR CURRENT TRANSFORMER

The ratio check has to be carried out as indicated in Fig-13 below.

Figure - 13

PRIMARY CURRENT INJECTION

SET

A1 : PRIMARY CURRENT

A2 : SECONDARY CURRENT

[t is customary to conduct this in conj unction with Ihe primary injection test. Current is passed through the primary circuit with the secondary winding circuit to its normal circuit load. The ratio of the primary 10 the secondary currents should approximate closely to that stamped underCT ideoti fication plate .

Pre-CommissionIng Procedures For SW11chyard Equipmenls 45

L ~ .,c. ,11

A llernali vcly. ratio ICSIIS 10 be condllcl~d as per the li)llllwing melhod (I ig 14).

\/2

Apply \'ollagc from secondary of the C'1 and measure vollage III primary \\ tndtng. i m:rea~c

voltage in sccomiJI} up In ralcd KP \, / ISI- and by leco rdi ng Primary Vollage. complIlc ratio of V I \ 2. rhe ralio :,hou ld match \\ nil the specIfIed \ nluc

6.2,4 I :'-IS LATION RESISTAl\ CE '\1EAS \J REI\I ENTO~' (, URnE"'T rR \NSFOR \1E R

PRE(' A UTIO~S

46

al

b) c)

d) e) f)

g) hi

i)

1 )

k)

II

r llerc should be 110 joinls illles l ing cables.

TcsllcaLls should nut touch any It vc pan .

Mcggcrhod) shou ld beeanhcd (Ifsepa rale tenn ina l is prO\ idcd ).

urfaccterlllina Is should he clcancLl.

I R mcasuremenl sh<lu ld be earned ou t pr~fcrah l y 111 dry and , unn y \\<!uthcr.

l\cvcr connCcl the lest ,etto energized equipment

The ground temlin" ' mu" be e"nnected ti rst and rCl11o\'ed al lusl.

II igh vUllage plugs shuu ld be frce rlll 111 mOIStu re dUri ng i11,tallallon and op~rallon

It . l1ltla~c, arc ((Illild on the sur f.~cl.: of t r, the SGllle , holi id be cicaneLl by ~klhy l

A Icohol only. Pelrol or dlCs~1 shllliid 11~\'cr be used

Il should be el1,urcLllhat whole lesl ing equiplllent alollg wnh teSling procedures ,Ire '1\ adah lc at leSIIII!! "'~. Tcsllng must be carnell out in prescncl.: of Ie sting cngincn only.

After Icsling wilh high vultage. le,1 Ienn inab mu.t be grnundcd bdnTc he lng touched by any pc"onncl

fest Jcad"hollid be propcrly,cr~cncd shl clded.

Pre- COf11fT'HSsiorling Procedwn~ For Sw!lchYdrd Equlpments

Do No . D 2 0103 01-0~ --- _~_ - __ ~ ___ ._~ _. •• I -'0J' r'Vl ... -w-.-.... ~

Connect the Megger as per figure- I 5 given below. Connect the HV terminal to the Primary tcnninal ofCT by using crocodile clip for firn1 grip

HV LV m Test Kit

Figure-IS Typical Arrangement for IR measurement

Carry out thc measurement as per standard procedure given by the kit suppl ier.

A test voltage as specified is applied as per the above connections and successive readings are taken. Values of IR should be recorded after IS seconds, 60 seconds and 600 seconds. Ambient temperature and weather cond itions are to be recorded .

6.2.S DGA Test of CT Oil: Oil samples to be collected in 300ml bottles and to be sent to CIOTL Hyderabad for testing. Test results should be comparable to factory values. In case of any deviation, test results to be forwarded to CC-OS for approval.

9,J CIIECh:SlTESTSAPPblCARLF. FOR CIRCUIT RI-tEAKERS

6.J.I- ~SUREMEN.:::r~~I+B-R~ DG'" I'ei"l is 1110 temperature at-wlHGl!-awi&t~~MI-~g~r~a0ASillg.

f)ew-P-e-i-nt at rated ~u-_j:.G.8.;. Dc'\' I'ei,,! '\,RgA Ai03St.lrgg k@@piRg regu~tiJIl}Wl.l-vt,.jn s(;~~--th~l+toI{)! of asw pei-Rt-ki! te a liew rGq\l-i.rod flew raw of--ga.s,--is-;;aUcd-at r,atee prGssuro ofCB.1Rlgt " al\'o is oponodcompiotoly.

Dew-1!(Iint at atmosplleri£ presslI.J'e: Dow Peint-whCfl-ffi~eG-by-regulatiflg-lh~~

al the-i n~f--<lGW-l"ei-nj--ki-l",nG-kccpi.ng-o ut IClt FCgt! lat i ng--valve{-i-f;m>v-iGcG-)-i-n-R+1-Iy-epeH GOO~ha~..t:l_te.(:}j:gas is mairn.ai.ncd-a&reqllir~a, is £aIiGG al atmospheriG p«!S5YW-o

+ES-TINC PROCEDURE

aj M~j1C-G">RB<3ctieRs te lil~ kil from ell fl~{lHSt.lriRg lhal Fegt.llaliJIg-va.l-ve-is-f.ui-4' &losoo-3t-tR ·im0-eH;eRne{)t~A&GHR~_P-Gi-nt-k-it~

b-) l1y FIlgulaling till' fl e'" ratc eflOF9 gas (~.-2.J.ilor+miR-te~ Ii{Cf+min-----rof. !lie (i(J<I gg), l-R~e_eHlc-w.peint-i~crvcd till it bcCOmeS-5labje,

Pre-CommIssioning Procedures FQr Sw Ichyard Equlpmenls 47

'l /.)0

, t .• 1 L~.I.!.a'tt.l;;.ll!'~.Li_ •• :'. ~- ....

c) I (Ihe rcgulallng val ''<1 ,~ flr.(Widoo~t Ollt l,,1 ofth~ J"","poflll-J.i til-len va lues." gi~cn in Doc, Ao,lllr raled rms~ur~sarcto lK'-1lKJllitw~d ,

Dew Po",t Ilfs.roga, \-ane, "ilh IXL'hkun: 31 whkIHH~a~ur~IIK'fll is "CUlg , .... ffl<!J->lIlt-rlllls i, dll~ III lin: faCI lhal Si"IUhHIOJ1 \ 'ap.,ur Press",,, d,,~rca'i<)5 '" It I! ill~rca,,, in I'r.c!;Mlf-G-of the "I' u £a,,·I-I':I](<:. dew p(lin' nf,'>!'o-g3l>-al-highcr prc,s\lr~~I.~e"~+lhan dew point-<lt-alm<"'l,llCl i" pre'"" I'C l' hcrdonc. i I is tn 1>C--<?J1f.urcd Lhat i f mL'ilSllf'CfHCnl--liao-h.:c:n <I'lIle al " pr"""lr-c .)l~'f than Ill<' :HffiU'flR<:ric pr~"SlIf-c .--sanw 1>;-4 .... 1'" cnll\L:ned II' tile at-A-lo"!'hcrI"prc"urc a. glVC-Il in lhe Lallie he~H" l,,~d al the lime o~cnll1l1li,si(jnlll!! for "mnlJ • .(:.I4n'lI1l1jactur~rs· M"lhod '",r (;{mWrllll!!-dc" 1)<11111 aldi n<OfCAI gas l)rc&6U1~i" g-~vcn,'dcSGnhed i R-I LC:-6U~);O,

I 131 11 l, (-) IS· G - :.tll-0 C 2 M& (i - :>9" ( , C-GL ( -) ISO C;; 35" C; ., 4 ARB 1-) IS' C ra c s NG@' . , H l~· C - 36° C

6.3.2 '\.1-EA-SIJR~MK T (')F CIRCU-Il BHL~K-&R--O-J!-&IM:n. (.; TI'\.l 1--,"I-GS-l-l\.C-bUOI '\G I'R F, I-N-SE-R=I:J.Q N I~&~ l.I>l:Q.R-TlMffl (.;,~

48

I'RECAl-'IlO

:+j TIl{:fc should-A<lt-OO-anv joint in--lCI<I-iR~--ahl~h .

11-) 'r..~~h6U Id 1lO11-GlJcl+a-llY-l-f-\.'-c pa rI. ~ ~ oo~hQ 10,1 "ll 1-1+ 'ncrlS"Qd~l1Wnl '

G) nlC grOl~nd-Ga9k Inu];t b.: t'OnJ1CGtcd-t"H'bt--and nmlOw~-a-t-l-a!;t, ~) I, igll-vol tag" plug;, sholl-l4-bc~rn!c from nlllistllr-e Gu'Fil1g installat ion~~nd~ lien . C) Gir-cuil BreakGr.'\nalysCfbody ~hml-ld-l~·~lu:d hf~paratC<laRIHs-pnwid"dl,

g-) Il-sI~-;lAsurcd-that----wlffile-4<.»;1 Lng ~'luipm""'-"l\l1lg-' ... ith testing pr_-It,f0HIFC "vai Ian Ie at ti)li\Hl~",ilC kSllRg mu~Cd-oulll1l'rc"''Il~0<}rtcblin~ pcrwnnel only,

h) SUF;aG(!-tlCmlinillsslllmld--b~lcancd whcrclhc-I'ORlieGlion, for tc,1ing-are-lo-1:><.>l1'kldc' i-) w..'<Il1 ·arta-p<>i-Rl--\\.-I1-ll-ti311d papCf YiIf" llRlsh.whcrc oanb t""",Hlal i.le ge pr .. ~i<too. H lin_urc-thatal-l-lil" pol".lnp FII+lllhancOllbly Ihr"\~Mi'lgk!-l'l\lSC Lripcornlnamk

T ESTI{'\.{;-I'-RO n : I) UR-E

a-) ~ak" connCCllnns-as sllOwn in th" tigup .. 16I,C\ow. II ,,~o hC---ellMll'C·il--lhal-R. ". il pllal.C·-ffi3l'I..lAg ca~"-~nncclc'd W-11-ll-thc flfOPC-r pia"" -in-loo--(;Il-ll-fl3Iv,cr <lIld tolollr"'\l~rc to he ma iRhHncd fur" lithe tlll'llc--poks-ot CB

0.) 1\43 k"';on",,cl ion .... ti->rFl.'Ctmling <1",,"'"1 i I1g 11111 mg. uIAux.I-J-aCY-CC>J1 13Cb L:.j htcnd-j>G-\_rr-ly 100C:ifGuil--llr-cakcrAl1a~;r-ch d) ( jj\" I:-I .. "jng comman<J 10 I;\o"ng COil ot'Cn.IIIld not 'oown the PI-R :Hld mail1l'ontact

cl< ," ng tmlc,:r-il-lw·!-I1" pri nI-Olil-froHl-lhcAnaly;/:C~,

- -------------"-?'~-COmm!5sI0n'qQ Procedwl;Is For Sw1tc .... ya1r! FqlIIP!lll- ,ts

\0 /~O

Doc No D 2 01 03·01 -04 --- , . , •• \' .~ t" 1i.:.R'"

s.) Gi=-tHwing-wmlnand~ ~ ]--/..(),f-GB-&.--nGle-dQ-wn-t-ho·ma i A-conlact Ir~ppfllg lime,

f) Qi¥e-trip]~iAg Cgll'\.rAaA~p-wi 1-1] of C-S-&-AGtMGW .... lhe-mai ... contacl-G-!osi ng [ fmc-,

g:) NotG-OOwn-t-he t-imi ngs...f{)r~Tand...:G~i¥iRl,;L..fgS~cI~-"G-G(}AlHIlIfIfl-~ COln maAQ IIle0 given Wilhllll llilllG delay elll 300ms lil1.'l@ Mla~G-gWGF\-wtwoon

~flC-ra{iel1"n-lGst,ing-f{}f-QGG.

b-} ~nd-GU1-Ope.ai.A~ i m().Qf-~acI£.,]'llR-il SGRlb].y-llas-ttl-bG-G-lccl~ically iS ll laloo rrGm-Ma-iIl-oonfaGts--aAd-[-hcn~IR-{,Gnl-aGl&-ar-G--IG-bG-GenHGcI-Gd to SGP3ffi~ GhaJ.1.aG-Is-B-Hhe A na I YZC F.

E-\lALU .... TION OFTEST RESt) bTS

A-) GbQ..S.lNC TIMINGS

Clllsing timings and Discrepan<ry<--in Ilperal-ing-ti-mc~IR-and ffi3-fn contacls-<>hou id-liot excced the pmni&&iblc limi~flCcif'ied in-the-w eNO: ])-~412-~An-aHY case, main C(lntact.; SRGulG-nat.d<>sc prillr 1000000si ng ofWR-GolllaCIS ane PIR CllnlaCIS shell Is nol open priM- lo clesing-of-maifl-GOntaGls. In casc, €llntaGI blluACiflg is ellservcQ in epGr-atffig t~ming5-fur-P1 R-an4-main-GeAtaGls,-sa-~lwulQ eo rcctificQ by tigotGAing tR@ calJ.le GOru1e~S--

/' 0 ---0 0 0

/1 / 10 .... ..., y

I ~l"Gk I 0 I Gn.:CH I

'---i ~ 0 B " AnaIySCF

EJ 'fYI)ical Arrangement-for-Qper-atmg-+imings-!\'leas-ur-elRt'nt-of-GB

Figure ~

+Fip-tima-and-pekHl-iscr&p<lIIey in 9flcFal-ing-~irning&-sIlffilld-nel-c'wccd beyend pcrmissil~I€, ¥a4lc-gi-\IOO-iIl--!;)eG. »\8, I) 3 QJ XX4l-4-:h--ffi-GasC-{j fABB , NG£f aHs-GOL malw-G~ ~pi~{lGl-s-soould ool.flpcn afler op€nm~ntaGt&,

~ _______ ' ____ • __ 4i ________ ~'_' __ ~~'" ~_. __ ._W_~'_M_" ______ H~'_"'¥~"···" , ~

Pre-CommIssioning Procedures For Switchyard Equipments 49

1\ I~C

• :.l .... , .. ,') •• •• ......-:t.·aII~ • ....:.....~·-.I.., •• j·~~. n ·...::~1· ,io 1'.._.'

C) 'CO' TJi\Ui'GS

(0 li""ng";.houkl-lw-wl lIII J1 rcnnlhsibk hmw;. ... "-"PC<oHioo·oydll1crc!H mam,laau~. I i'opnali 11 !! 11min gs-<>t {c B poIe~<l"~ nm wil l,in I 1>nih, ,,' me-may be corrc{;l~u by . \, I ' quali zin~lhc . 1·'("ga'i-fH<.'Mour , in a U . he pole, 2 Atiju,ling plunger nmvcmcA·H}j:l n pi dose e" il, l .:\tIJu-rtmcnl In ()pcr.;nl.ntHI~~l",n

~. ('hangcingoltrip closccoii&(i.fr-equ ired)

It is abo imporlanl 11) m\.'a-wr~ t<mmg .. of alJxi~li!ry l'OAtacts from lhe poinl 01 , ie" "I' "HI<ll<{)R5" r I Ihe 1113»1 WI<I·a<>.,; .

6.3.3 1>\ '\,\ i\ II ( Co.WA.-C 1 IU:S lSTAi'jC" l EAS R-bMI£:'IIT (I){,R-M·)A ~O·CQ TACT T R. \\ £ L \I LA, ·blRE.;\ll0. I ()n~ll\' Cl RC lH-T- D.IU .. \ K ERS

50

Te." "'quipm~nt: 1()(~AI1\p.D(;RM kit wllh C~"per1JIIHmtl Hna lyzer wilh 10k I ~7 ~n1jl~llg tH::'II'cn(7~

I sohtl~on Req u ,I'M a) CcBshould be in opGll lms-iI-ioo h) "olatOl'(l r oolh·,web of C' I:J should hC-lIl-OI}Cn P'-,,! lIon. e I I;a.W.'-&W+l"h of one ' IJ~4~1 ,;11ll1l1~ bC111 opcn !,,'''!-InR

P-I'eC;mlWn5 a ) )-I!..'fC si1{lultl-p., " () J" i "IS~ 11 -let.l i-Ag-k.'lt(j;;l<Jablcs . b) ll . hou ld he<:rn;ur~e II-lal\\ hole l""tillg C<juipmcRI-al!}llg " illl teslin g. r'Hl"OO1U-~ a1'<'

a¥ai-J.ablcal l~Hl[!; ~1I0. l~g !1Wbl ~<>Hrr i cd flU11Il (}F<lMOAW-ofle;,t lll!,.LIlGf-MmA",1 ooly,

v) QJl'I"Hlt-reatis ,1""'~b;ffi"CCI"d ""GH- ~lJa~ltagll IOdo>' Hr~ Rul mrt."'~ GUR'IlIH-/1ow

Tt"Hng-P~!)~UFe

) Fo llm, lh" 'la ndar{(.pr-occd urc,a~el-l-iJ1-im,.[nl c lion man ual ,,'(·P ( -RNt-l.il. 2, fhc--l li5chl-llc., of eon nGC~K>rn;-a!--GB nangcs is "10<>' IHlpflflanHo enslI'" m" fl r ~c

m""~-RW-Itl CB dur"ng~fl'*'lffiR...gllRW!lo.. ~o~i~i .... n"-ilnu k" lur<>-"I' conJl"cIKlRs.4l-1'i!l.g-l l!is-p"rit)(kan -d"'"'1ati~ ly ChdllgC the u)-'JJ:!·mi" ,igMIUr<l n rr B r~·i Slancc.

:< ,

4

5.

6. ) ,

R-.

DC. RM ~igAalllf~' slmu ld bC.f{!Gflr4:d-I<>r-CO operalion. OjWfH.'OIIlOland , hould he ClC.lmldctl.aJ.isr...:«mms rmm Ihccl<l~llti. U"an ll{lfl10A5 of ioc-emffig-aml-<lUtg!}il lg l1a~-5-4~I+polI~h papcr-lo Fe~ll{lW ra i nl. ""idalion elL. al p"i»l!;·" llefll-Cli ITcnI e-lamp".are A1II11I'fl;)(] .

~GIlhi. J3<H n~"'!()n, a£cI<l""'-'" fl!}sei hl0 hllnc-cn(\o r POl'wIail'I-ffiMllalOf \tI cnsur.Hhal min imum F~i!>1i1I1 .. ",.j!>{)ncrcd hy flange . .,._ hllhs, Icmlina l co"nC":~\lr~ elc It .hoold nc<:nwr<:d thai Tnn.dTransdlu;crsarc properly till<::d Sa mrl i "g-fr~<llIcnc y d u r~ 1'!" .. JH~iWFCIJI.:: nl .huu Id h .. ·W .. K .. I-l-I Rcs.iF.ta Rc-e, travel. in~\kl\u" cnt "nu f rip- U .. ,c coil~lfI ' nt.a", [0 I",.r,::c+lfficd .

\~ 1)0

••••• DOC No. D 2-01-03-01-04 , • • :{iAnlU~

+].'" Wlfiations-in t~lG-m011sllfGd-fGSi.s·taRGC-¥Gr.sus-ti me-w i II be..seon a>.-a-fi ngcr-priRl-ffir-tRG BFealWf-GGntacts ami can B~ IlS~Il-as..a-bcRcR RlalOk· for GGmpal'H:lg-w·il+1-R.mro-m __ ~ GIl-Ihc same B~F,-:nH8 previ<k:5-illwfIJ.l3lion On-l~1(Hl91JGi.[io~lw-I:lf(~ak~lt"';IS;

griviRgmGCRaRisRl. OPGHHi~l~

~J)fllillal;"~1H1l-iG COAta~I41;i~W-McasU""'Il'OOI,~n~ili.;, n-o.f-aFGffig-Golllacl, main comacl-,-eperaling le"ers, driving R>GC-hanism-Gan be-.proojcled~!.j:..{)GRM~at\lf

sh(l-~G variatioRs aRd al69 thGr~&-changl~ iR-ar-Gillg-Goolact--insGHiGJl-lin.'l0o-it-indiQ(cs GH)si~·oo·afci·ng-cGl-lt..,;I&t(l-R,a.inC{)nlaGl;;.a ad subsCtlueoll-fa ilur-G.-

Gollt:Kt-Tra¥eIMeasuremen!

TFaR&d .. =~-ar·C-iJltachcd 1000hc-Gperaling rod or illlcrn'ptiAg chambcr-il~ef tG-l'coord-J.he COlllact--ll'3.vek-W-hen-GB-GIesC&,-{;-GAtaCt--t+av@1 is ~<l-.C'~C5-GF-all-y.-etl-1Cf

abIlGFmalil;r-i&-also clsarl)' ieGicat.oo-b)<-lh!>Gonl,1Gt+FlWe!.McaSUFClllCllt.

~~~taGt-spoo4-afl~cl-accGIGration 6igRat~al,<)G-wilh IB€ origiRal sigllatllrG6, tlum4~H;a1e-PFGbIGms rclatc9 with the Gpe.r-aliRg meGh3flism, GpGf34ng-l().vcr , main/.aFGing-GOOla~, aligAme-fH&GtC.

OC- RM-aloflg-With--Qmtact Tra"cl Rwasll-remGR1 is >l£ecf.u.14I1--RlGniloring ICRgtR Ilf '\rci Rg oonfaGtS. ares iell--of Afcil1g GORI,aGts-may.-lead 10 oommul.at.ion fai lYfGS aRd~.mmlcma)'-get traA&ferrs9 to ~4affi.soRtaGtS~ {)Il~ to lwal-of arc, main cORtacts Ala), g0teamag~Q.

9cl.4 OPERATIONAL LOCI«){J.T eM EGKING-F-OO-EIW-C-IRC U IT IIR-EAK-E-RS

4d-.4-.-I--+E$T-lNG-PROCED !JRE.>

A, S Fe GA·S-P-R-I>SSlJ.RE.-bOCK~Y+

aj bQ..W..f!.~A-R-M

C195~ 1~()lation 'lalHo 90tv'CGEI-GJ;l Pels(s) ane 90115ity m!miler tar.t-relcasiRg S.w; ga&-ITom-dcnsi ty menitor--ti+l-thc low prcswro-gas-alarm-contaGls-aro-aGtillllW .... vhlch i~OI~y...M-IHl imslcr. ~-thc !'rGSBUfG ane-{"mpsrarure at wh.icR--#te CGflIa~d,

Cenlinu6-mlcasfAg SI', gas frOAl .. -iwlaK'fI-ZOI1G-ti-IJ.-IOO-o!'GratioRal leckoul--Alarm Contacts arc-aGlualoo whicl1-ar~-d by Muilimctcr. I>JQIC-00w&tho-pFGS6HFlHi~JG

IefHPGf.at\lFG-a1 whiGB-lhG--OOntaGl6--!,'GI--aGluatoo. ·r"is-i5-Gallcd-eflCral~~HI.

flffil>6Uro.,

g., P~IJ;iUMATIC OI'ERKj:jN~T&M--LOCKOUT

aj COMP-R~~-R+IS+O-~:a-l

Closs tlls isolaling "al¥G-<'>j:.GJ;j e.lca ir- iR!{) atmosplwr~m-thc-GomprCSSGf, />JG1-G-<iOI'lA tR0 vai1JG-<Jfpmssuro-<l whicR-Gomj*C-s50F-SIa;.18-bu-ilGing up aif--p!'GS6Hro ami prcssIJ.FC--at-whiGh GGnlpr{!5Wf-51-Gj3&-

Pre·Commlss.onrng Procedures For Swilchyard Equ<pmenls 51

I:) / ~ 0

52

L ' .. ,",' 10 _. ". '_~'1I .. -I~ ....,... .. ~..LI"'I,1Y, .I~. 1.1..")

hi ('BALI I () RLn. OSGl C-X'K OUT

(,Iosc~~nll-\al\'" bctllcuR-f>IlQIUffil-I-i<; sy"~rl1 dllU l~ri!""'UHl-"~~"'" Rck:a,;.,.!If from Ihe ,,,,jal~<l AllIe III 3Imospi:tcr.; , ~, ol;;-<lOwn pr~~sumal "I'lcil A R-LO colllael, III prllhsurc """'l~h gel aClualoo ""lm;h-<l~.k.'t~Clcti b} I\.luh'mck:r'----:r-luH€llo" or the \.Iullirnelcr shouklooi!~nn'*-~cu 10 the conla£11wwilerc Iln:AR L 'O ot'CR-awnlali~ .

Rdca..:-at.r !.rom Ih ' i,;olaled "{IJ>e-I<r.'IlllIIISpheN. "Gle dO"'.fl-J~H}bSlIfC al which C'1l Uu,'n~ I (~ ,,1nI3<:15 of prC,"UH! _ il'lll! gill. Hclu;!'ed wj,ich ar'll JClceteu hy rvlullime1cr

ell eEl OPhRA IJ(»JAblOCKUU'[

Rdc",Gafr from Ihe "olaled mne lu atmosphere. -Nele-<iOv.n prcs.lIre al which GEl Opcrmiol1al O,,:ol1laCI, of pr~~qJH)- s\\ itch gel ,lClualed which are t1ele"wd h', M ltkitncler,

"4 MIOCHANK--AbGWSlNG-l lERI OC~·HORABI3& 1Jl-I-1-;l~~L\)

CB ..... houkl be in cimOO IWMli<Jl1 Ruleaw aH'--frem r>ncumal'G")'&l\Hl1-{}~ CB 10 alnl{)'flI-lc;~nd obscrvc \\,-[\el-!lcr CB pnlc., .. tarl otli.'11 ing. if so. nGie--dowlHhc f}rcl>surC--al-wi1-icluill-rod .lallscomiHg-Jo"ll. I n 8UGR~I~osing inl"rll""'~ ~Ipcnctl for 'l"'lWGl~GI1 and If ,c~IHR'<I.-fCplacc Ih"i!lm;nlg-~nwrjnc~

~, ) l'uRljH;TARTI&TO-I'

H~I'VlHl1g - pr~"ur~r-t:I{)"oo "dl,,~ , nOI~ dlmn lh~ pres,u r~ '.II which Pump sLOn, bulldmg lip uil prc~sure and rrcs'lIr~ al whIch pump slnps.

b) l ':IJAYCro RbCL-Ul>II'-bGGKOl,(

Glul>c /o;olalH>l1-Wl-J.vc bcl\\-"C I1--hy4Fau-l'IC--"~'>1."111 and prc;;"ur H;\\ ilches. -Rel"a,;c-HlI ·fWAl-ffic.....,lak.!(\.;<<Ill~ oil~1m~. \11~ fleVon j>r-c"suro .• H .v.-fnooh-A-R L. O-coRla<;l-'K>! P"~"UFc,swllc h !!Cl~UalOO \\ hich arc dGli!~19:,- Mullim.,Ii!+.

c-) G-B-GLOS1:-lG LGGKOllT

,Rt: lcasc oil ifam Ih~ iwlm"d ~"IlG hI 011 lank ~lewn p"C, ...... 'G-lIt--wh«;lHo B G-I"'Hlg L,I() GGJ>l""h "f preSSllr~ -to_1M gel ac1l13loo- which arc dc~wwu I.", MU·It-Hl1'~CF,

d) WJ.G.PbRArlQl>J-A-hhGGKOU I

R"ICilSC Oil fromlhc-iSGlaiCd LQIl" 10 cO Fltaint:f.-- 'Jole dnwtl-pf-l: Mite at wl,ieh (-Il~'fa

lional J-...G.c-oolact....J ~~Ich g,1"w.-IalOO-v.-ltieh aro<l,~QI,;\"d by MullinlClcr

I-or Pneumalic, Il ydmJ l-iG--erwfating ~n.+Jj-}cfaling pr~l<! t1rdrlcSI-W-IJ" INFfHnllCd tiuring (~CO operation ,,(.{:.g. k\!Cping AC "'ltlply 1)1' Hydraulic pumpl Crnnprc'''lF in ofr wmln'on-. '''-yer-aulic. Pnc~prcssu""jl'O'H,heukj be wilhin-l'I.Hil-"-(-asrccuonl~ ~ 1\-1.lIIu l acturcr)

.,.v;

P'B SOlTlmlssloll lng Plocedures ~or SWllchvard E4u1pmen15

____ DuC No 0-2 -01 -03-01-04._IIiIw=;;;;:;;m _______ IIiICoi;;o,;lli'11iirill:l~·

A-c SF6 G~PRES~;;URE LOCKOU:r

A II lhe. SF 6-ga j}Fl;&SUf~SW. tcl1es-SeH~II%S-5hml l d be-,>~ed-aflB-WI'",,4ed \V i I h arnlJ.itMIt Iem~..!IHlfe.~tting&oj: !'Ii gas j}rGSsw-c-&Wilch~lIGllld be wilhin..t (lTl-ba4-Kgk-m4lf the sCI-valIJ.:.{-afH:.f-lak i.ng iAto-aOOGlHlt-H1G-lGlllpera lllF('.te~A-faGlm),

M I-lOO.airiJr.csSllr<J-SWi.tGlw&-!;etlingM;hGl*l9-bc.GhGGkGd.and GOFrcClOO--alld-should bC-Iv+tmA ,,"O. 3-bad Kg/cml.;)HI1(J-5CI-v.a luc,

c., 0 [L I' R-assUR E>-bGGKG.u-,:

AJ.4Re-e.i.I-PH>SSllHl 5witGAOS so~ings<lBOlll~ko<J.and-co~hOl1ld be \w\hin =O..3-barf. KgI~IG-5el-l'lIlue.

:r~lC-S1ai.G-G\mlact FcsislallCG Gf Alain Gi-rell i l~f~GI'l-j*}Io-GJ"a-ci Fe-ni I breaker is-of-U1C OF<:\G, of-a-fcw--tCAS~ Q() A DC i5 iAj0cled-aI)d~rni~+-4ro~is~I'AG3surod

3CfO~Gh CB cenI3ct~~6'>I"'1G G9nlacl r0&i&lan . +he ,,311106 5801liEi 90 witRin SIlGc ified limits.

WlIGA---thG-breakeF--is·-iR-Opon~f.lm i tion--anEi-GJ.osi<J.g-<lud-Opcnillg-GOmma nds a Fe--gl¥efl simultaneously tAG brG3 k0r t+F&I-GI~e~lS;-OO{ decs Ret rCc\9Sc.<>¥CIllhellgh lAC Giosing-t'GFRflI3n9 is A'3intaincd,

6d.1 GJlEGKINC THE AMTI CON)}ENSATION H-E-AT-ERS

ClIOGk-lbe-su perv i 6ery c i rell i1-0'[-ll1e aflti-GomlGi;sat iGn~-fof-wHcct functi.en<ng,-Wi1.h tho-boolers swilGh~d 01>1, mG3stlf{) tR@ir GUrrGflt~UI~

Pel@ Discrcfl3acy is Ei0fiR@9 as-tOO-diffcffiAGG ill clesiAg-Mfl0Rillg timillgs~f.f~.ooI-~ ~

Closing GGmluand-~{}ndOO [O.dosC43~a~G, erG!. Afwf cle&ill%-R--I!o lcGf Ga,...tlJi&-P.-oI~ati~ally 911GIl aflt:r-2 ,§ 5GGGIlds (a.~ flcFiJIlIG disGmpancY-lim&F scHings)~·R~GSt for-rcmaining-lwGi/Glcs.et:cll •

• ; ~ _w ______ ·M ... __ "'''j ___ ~_W~1I'I1 .............-............... -........ ~.'.. I' NIl. "rn ••• ~,~~ ___ w ..... _" ... YN .•.• '"

P,e·Commissianing Procedures For Swilchyard Equlpments 53

Ie; /~TJ

[

H

Tr.ipping ~+lImnal1c1 i, ,,'l<:IHku tl' tnp nne-fl"k bay ~ 1t-l4>k. "I Cli~ ROB\aiRing ~---and Jl- f1t.k, of ('n "hould alJtlllHall~ally open afkr 2.5 oe~Ollds Repeal the h3nh! le,1 t"f m''l\alJlIng 1\\" poles niT I:l.

(' IWALUA1-l4~ 01 TES I -R-f.,<;l- LT

rcr111 .... "w lc'-"l-ilJ~urpnIc4l';Cf\:pan"y t>c-lwCel1l\\O po lc-!. ... rCB is 3.3.1 n1,ec. Irom SVSICrIl point o(,ic", and il ~.houkl nut hc confused ""Ih tlw wlilllg 01 Ilt\k4",rcpallc~ II1H'" which is !.!cllcrallj I (lor 2.S ,,:c clq,clll~llg 011 Alllll-rec l,»c schcme.

6 .... 9 C HECKI>'G-l I1 EMI ROGI!;N prU~JL'K'; PRESs.!ml!.

( Iusc Im.'-t*,·"",:c mka'l! 'al\'c. ,"'lo~ly "flcr the l'filpullljJ ",,,Flticll,C priming-pro"urc 12HH hafill ~o '.c;.j IIHhc accUHlu lalor can he r<:ad .-Thc r .. >lHlionslllp hClw.:CI1 the [If<:SSlIR: and IClHl'cratllre i>;-i Iltlmlloo III J-Ig..-I 7.

PftmllnO"....~ ... • !\Incllon 0' tn. 1lll1p.rwNre NGmNJ ratIng at 20 .II.C: lCIO. t IMr

Fi~UI'e - 17

6A (IILC",S,' J'LS1 ... . \/'PlIC 'HI L FOR C\T,

6.4.1 C"'I I'OLARI'I ,. RATIO rEST

C\ I po laflt\ "thed.cd m lhe same lIlanner:l\ 10, CL tJk i llgc~rc loensure Ihal the balle."" connected 10 the prilllary wind ,ng. 111 c,"~ of st"r,Wr \\ 'nding "'lI1figumlll'n carc has to be taken III ensure t hallhc prima ry and sccnmJary nCllli ,tI POll1h <Ire not connected logclher. I I is necessary 10 wrify Ihut t h~ pha," rol:uioll "'quellec of the "\ pha,e (V I is correcl. I he ,cwndary voltage het\\"cn phases and neutml "rc measured al1ll lhcn phase mtallnn met.:r i, <:onnccled [I(;I"OSS the t hr.:..- phase lerl11inal .

6.4.2 I lJ LATIO'll IU~SI. 'J" 'lieF ;\IFASl RDIEi'I' OF PRI\lAR' & SECO'\I)\R' WI'\lI)I'II(;

-54 ?rc ~.nrn·fll~~I[)nlng ::>rocedures For SWltcnyard f:qULI)ll}GlllS

Doc No D 2 01·03-01-0~ -- ... ." • 1 J'U9III'- , -,.'. ,~, 'J,";/I -,-.;1 ;r :«l1l:f'.Uu5

e..5 nII':CK~/TbSTS '. PPUCAllbi; "' OR I~ObATORS

:r-hG-lllil"i-vGlt dfGIl-aGffi&~e-iS(}lat{) f is-m~a SUNd using-DG-GUfFGHh+h<weha g(Hjrop-gi-\LCS a FH@llWr~ t:H:s·i&laR~t:Gu ~ren l~rr.yffi!''ilaH-;!Rd COOla&ts~

:r~ff(mt-sheilld~e.e{ltlfll 10 or morc l~,an-WO A. TR0 I'\lSi;;I.aAac-rG-HwlaWHioould-bG mGasurcd-a~'Bbicnt-a if ISffijlGl'atYfG,-l'hc ICJllpGraffiFG-Of speGimGRklwironmcllla.i lcmperall<fG SA9\1ld.i>Ne.so ra@G. Th~f-mea5UI'0G rQ~is~neo.sh~I1.\LCrtcd-l~

valuc-ef.IGffipGFa ruro-al wRieh-fa<;tGry-tcsl r stHl.s-aJ'G-fak.ml. Ttlll1per.aturo.-CGHCCIGG-vaJ.uG-Gf FCsi5laR~e 51019l1ld w.cemflaFaIJI~ 19 lh6-f.aGlG~(h

6.9 CIIF.CK~/TI!;STS . WPblCAllL~ fOR SUI~GEARRl':STI!;IU;

6.6d M~ENT OFTHlRD-WAR.J\.1QN.IG-RW + 1 V 10; C UR.'U!:NT FOR SIJR.GE AAAESTER-8

ih Makc-lhc~nH@GI i oRs as per tho.diagram-gi¥ CI1 below (Fig. I R..) 9. Till) kitslllAA~erly @artAcd ~ G-lamp On fype CT 5R9Ula 9" placed a90V<>-Ih<H:l<rgll RlOniloHo pick up-thc--total

Itlakag~

9. CaFfYGut--thc meaSHf-G!'HGRts-aS l'er--5l-alKlal'fi--procedllf!'l-Sl±Pplk d-9Y t hl).-l-G£t-k.it manufacturer.

~ Ne!G.dewn.tbesyst@ffi v(J llags aJId.anwicnl-tGmj3eratm.calGRg-with-IR~t.curren!-¥aIIl""

j:, AWlid mea£HfGffiOOt-du "lng·mGHSGG~

Field probes for harmonics in the system

Test Kit

Figure- 18 Typica l a rrangement for T HRCM Tes t ____ • ___ Jr_.'_w. ""_~ ___ ~~_~ ____ ' ____ '.'~""""'_'_"'-"'"'' ..... _._. ~~"~. W ¥ IU ...

Pre-CommtsslonlMg Procedures For Swilchyar d Equipml3nls 55

r=t-/02 v

.J, -

, .l~~~c ~~ .. ama3"Ee~~~~"[ ~.

£\',\I.l~\T-IO~ OWl El-> r R!,;SlILU.

A If!(} Surfl" Arr\!'.<cl <:,mlmulll'~ly w nduct"" "m~1I Iml<agc l-Illl<:nl (rig , l'l). The r~M"II-\-C -nlinpunc"l "rll1lo; kakag.cGUffCIll may IllClcasc ,""uh liR~~ UUC I,) dill"mm slress", cau,mg 3!!cing "nd lina Ily cau,,! aneSler lai l llr~ .

8. ~f1larmlll1i.,..al ~ r1fc~cnlln.It\.,*y"cm vo ltage. II alleels ttl4! \ ailic ,)f mca5urcu Ihu'd hamwllK CUITent (oHlpcn,aHIl!! dC\lcC provldcu40 be used hHHd~tfy thccfkc4. or he' \IiIluc-at=llmu Ilarmt'_ R<:sisHV<K'IIR'Clll shall h<l-I~>S-Ihdn .\().."A

T Capacitance

HV side

Non-linear resistor

0.7 (HF( "" . II..,. "()HOII-ILI~ \IlL \.., H)IIl"H."" I..,

6.7.' EO\RTHRI::S ISTA:\CEME SLRUIENT

56

Nnlillally bnh leSler is ll~cd lor Ille'asuring

(il) 'in;1 resislivilY

(h) E~rt h rC,lSlance

,I. Prior 10 the 1~'ling ur'oil resis""ty allll earth reSI,I,Ulce the llp~r<i1ll1n manual orlhc Icstlng inslrument ilvalinh lc at ,He may be referred for proccdllres 10 be adopled jar mCJsurcl11enl oholl re,,,ltvilv amI ""nh res i ~lancc_

-

A Iypica l "arlh leslel has 4 Icrl1linuis.l' I , PI. C2. P2 and 4 simi l.lr dcclmd", arc dnven in lh" ground "I equal ul,Wllce, and connected tll Ihe inmul1lcms in Ihe "rdel orc I. I' and f'2 . ( '2. Then Ih~ hJndlc '" IIlWtcU or hlillOn is pressed ano the rCJding oj the rcsislaJ1CC " read on Ihe scalc 01 Ihe I nsl rumenL I fR is Ihe resist;1I1"" mc"su",d Ihen

Specific Rcsisli\'il\ 211 a R

\\ here 'a' " Ih" distance bC I\\ cen II,e dcclnldc

And R i, litn",islancc in ohllls l1leusurcd Il1llhecilrlh lester - PrO-COmnllSS10r1I'"'g Procedures For SW!tChYSld FqIJipmenls

I <i. /1>20

Doc No 0-2-01-03·01 O·l --b. In order to measure earth resistance of the electrode of the substation , it cou ld be

connected to CI and the va lue ofR cou ld be read in the scale with the ro tation of the handl e of the Insulation tester. Thi s will give the earth re sista nce. The value as far as possible sbould be around I ohm. To improve the value, wa ter should be spread at the earth pit.

6.7.2 SECONDARY CURRENT INJECTION TEST SETS

The primary test is essentia l when commissioning and new installat ion as a test the who le protection system and wi ll detect current transformers con nected with incorrect polarity or relays that have been set in the wrong sequence in differential system. Secondary current injection sets are very useful for conducting these tests. The standard secondalY current injection lest equip ment consists of a 1/5 A current injection set, separate wave foml filter unit and a digita l counter. The equipment is des igned in a portable kit for on s ite tes ting of protecting devices, circuit breakers, trip coils, motor overloads, and sim il ar apparatus . The filter unit shou ld be used when testing saturating core type relays to ensu re that the test current has a substant ially sinusoidal wavefoml. The typical test setup is shown in fig. 20. Details of the tes tin g will be elaborated in the relay testing.

P1 P1

LOAD

P1

Sl

52

INSULATING TEST PLUGS

Figure - 20

Pre-CommlSsiontng Procedures For SWltcnyard Equipmcnts

INJECT CURRENT

HERE

57

I~ /~-O

6.7.3 COYl\CTTIG liT" ESS I'[~ I OF Il" \' CON"I \CTS:

58

a. IS\lI,It('lh~ tla, trOl1ll:lll~ S"kulld line ,Ide a "hll\\ n in l ig -' I .

b. r nsun:: Ih'" Jilt he sccond"", cnrc, arc Cllllllccted or sh.m lin nt III IIsc . c InjcclthcCurrcI11<lt Point i (]()o.'\) from pnmary IIIJccllonk lt (1I rlcarthl,lnu rl!turn

c urrl?n I \ ttl earth po i nl ttl :: il~ "h, l\\n in 1: Ig. -2 I . d Check that" L arc ahk tl1lnjcct "Uffen! "I POIl1! I and Illcasure the cum:nt ,II pnilll C. " I nlcctlOn olcurrcnt IS the ind,callotl oreonta.:! tigilllless. t. Repe,11 the procedure forpoim 1&1 g KcpcJt rile procedure lorp() im i &-1

:'\Iote: Above lest, '" 'I be aburleu If indl\ ,tlu,,1 contllet reStst,lnC'", arc wnhlll ,,,IISlacl,,r) Inllit and phYSIcal phase cheekong IS saltsli,,,tury.

POINT 1 POINT 2

f-+L-+-,-=-,-0 --f()t---. LINE

CB

~ LINE

POINT 4 POINT 3

Figul'c-21 ; Primary inJection test to check conlf,cl tighlllf" of Illl~ ! feeder~

', '----Pre,COtTIr r tlSSIQr1 I'1Q Pr Ol:eduras Fo ' SWI1t.:hV8'd f qulome'"1t:

.)0 I 0

.~<!.. ,. --.. . Doc No. D -01-03-01-04. ___ _

PRE-COMMISSIONING FORMATS FOR CURRENT TRANSFORMER

1. General Details

Region: Sub~S tation:

I.OA No.: Make:

Sr. No.: Type: RO:-YO:-B0:-Yea .. of Manufacture: Rating: f{ 0:-\'0:-80:-Date of Receipt at site: Date of Erection: R 0:- R 0:-YO:- YO:-BO:- BO:-Date of energisation

n. Rated Data And Duty

Core Ratio Class Burden KVp Protection / Metering

Windin!! I

Winding U

Winding 01

Winding IV

Winding V

KVp: Knee Point Voltage In Volts

140 No. CF/CT/04/ R-4 DATED 01/04/20 13 Current TrOr1slClrner

.l.. l ib

. I j,

~,

~ ill= "" ........... fi'! . 1',

'.rill I- ! Lquil1mL:tll , .. dt.'ao~cJ .10,1 !t~~ fmm UU. ... I dill hln': l\!n lTIil II.: t wh elL'.

7 I qUlPIH":1Il " trcc from ..,11 \i~lbk Ucl\!l.:h 11I: phv .. icil l in!!ll)eclioll . Ched \,:11ank hlh be-ell [lHI\'IJcd \\ uh dllubh: c;lr1hl11~ (tk~'H.J I.mk

1 l r,) r ~ Ch~L.:llh;ll Cl lun-ltJun lx\\ 1:-. '-=ilnln:J

5 <\11 nub ami b\llh!lIT IrJ!htc;lh':U \!.l1[TCC l h 0 ... ncr ~pl.."Cificd lorqUI!

~ ~hc~)" lighI1H..':-. ... ul h:nninal (unnct.:tnr - ---·\11 • il I In!!'" 'l:" JlI,'r l1ul 11I1~ ~!:n('Ti.t1 ntrun!!;cmt'l1t drJ\~ ing .

X L~\dilll! illld ;) lj NnJ11Cn~ of "'Ilrulo.:IUl'L .J~_U haM." fr.lJn~ I...; chc(:h.l:.'d -I. rt.~r tun rompkti~"1l .... crtll'i('.al~ 'Ir,ml.!. \\ ub Ii"" l\1 nllhlanulI1f! oh':'li\ltll'::'

r-'!-- rt:\ u:wed --III •. _ ,\~~I.:'mu\'cd ' slTalf • .:hl:d In Iran:\jl 11.1 .... bl.:~n hJlh.:l1l.!U ~ -

r-J-!-- l'hed. prim.ll) ~,bnl\ ufCT'" erected .~r n:IC\ilnl tinJ\\ln!t r--r-!1-. l'hcd hl.!ntl("(h.:.l liv !'<ocOIhu£ 1:S inlOlc t I- J c-l1-. thL-':. Ihe 1.111 Icn~l uml kiJk.;.J~..: IhlOugh ,m\' imnh ~~( TcmmlOils

r-li l'h~l:k 4\ IIAr • .IIn val\c IS prop~rl) d o:-.cd .unci lockey. 1< Oil h:\1.!"1 &. uti ~all\~IU1~

Ih N2 1'ft..:~,:,1ITt: l.'hcckcd h\hC'rc\'cfa[!~ IH; iJblc.

17 Oil k-\c! un tO I} \.:htl)llllt:r g.mg.: gl:I ...... IIll\' 1\1' oil "ampk l<lkc-n f,.'111 I.lnk htl l1um dram \ al\~( (Hll~ If

IX N Ilfl.}~~n I?:r..:~'uIT' ." 1l1~;,'urcd zern I r--"'- All th~ cabl.: IlJcntili"::Hlun lags pn\\"Id\!d .tilL! iill \,:on: .... . lrf' prm id~L1 1'1 " jill Id..:nlificat lun ferrule ... :.I t :\'8 '-Check ~c\':nnd~ c.JbJ~ r..'mt no\ l .... p'"p ... ·11\ fixcu .1.nd CI1-;ur~ ( .. hI...- entry 2tJ m the bOllum lind unuscu hull;~ ,culcd --- - -~I r 11~l:ln.: Inlcrp..\1\! ql blm~ is \':\IIHJ1klCU aCi d (.;hl."l.;\-. the ":oOli llUitV. '-" ( hCl:~ Ihe it" \"~lluc vl :)c ... :onu.u\ _(ublc

t"hcc.::k e' lcrneil ,-'ahlmg frclm JIJlu.:lmn- 0.1\ 1,1 rd.I ~:, cnntwl p.1nt:1

~. eompiclod

.24 In'\uH! unu~cd \l,.'C(lud<l!i:' core.;. ,I.!. all\ • ha;o.; hl.!l!"l1 ""hmtcti :uld t'.ntheJ ('hod, '!tar point hu, bc~n fUl"llll.'cl properly .lnd gruundcJ ;.\llIn~ end

" on" r=- Chce. 'pan... ~illf'I ~ClllIlg In p i 1t.:IIHmal (\\ i'CfC\'e r prl.l\\dcd f)o"'~lbII!J ~(1 nemk.:mcm P"II: It:\"C' lmg anJ iJ1!l1tlfi";Jllnn marJ.ings madl' -17 Ched .. tall d~ lta h.'sl L.1~ i ~ pru~l!rh canh~d

F .t 'hcd tlnu IUl!~ u~cd In ~I..!COndiU" e,:1fI.:u il arc 01 ring l~

.:!t ~ lhc~J... dir-el' lI c)I1 O(1!finlJ.fV I P J P:?) \\.f.1. Bu:-- lin .... l"'m I.:f!.::c lh tll 1n Prll\·hlOil ul hllllc.:ratliL ~tn[!~ !CU LOll) CnSUfC4.! \\ hcrc:'\ Cf uppl i''-Iblco :II Ph\si~all\" l1pen the bdll1w (O\\."t ~!!Id dlC(~ Ihe o il In hello\\.

r-- - - ---1" f·.n.;urc .he- pmpl.'l "iC'a lmg (If Ih .. · C r \-iB agiJlIl." IllPI"tUf&: llI~r..;" .... -- - --- - - - -

--------------- -. Currenr TrH'""!slofm(ll 141

... /1'"

4,G, d/l"" "'. Doc No D ·2-0 1-0:1-01 ·04

[v. Insulation Resistance Measurement a) InsuLation Resistance Measurement (Using 5000Volt Meggcr)

Make & Sl. No of test ing kit Datc of last calibration of the kit

Ambient temp in (> C

Remo ve the connccl.::d earthing to system involving ct under lesl and disconnect the connected Icrmin'lls of ct 111'1rsha lli no box ,

JoL lIJ 11

PRIMARY · CORE I MO PRIMA R Y - CORE U MO PRIMARY ·COR~ III MO PRIMARY · CORE IV MO PRIMARY· CORI' v MO PRIMARY - CORE VI Mn PRlMAR Y - E.ARTH MO

* Permissible limit of IH value s hould be> 1000 M 0 b) Insulation Resistance Measurement in Mil (Using 500 V Megger)

Make & SI. No of tesling kit Date of las t caLibrarion or the kit

Ambient temp io 0 C ,

-~~ "

SECONDARY COR E I EAJHH

srCONDARY CORE 11 - EARTH

SECONDARY CORE ill - EA RTH

SECONDARY CORE IV • EARTH

SECONDAR Y CORE. V • EARTH

Sl:.tONDAR Y CORE \I EARTH

*Permissible limit of LR vaJue should be> 50 M n c)

I' , ':"':' .. '~ 7" ,~' ... ~""i'~~'

CORFI . CORE U Mil c OllI:. I . CORE III Mil CORE l • CORE IV Mil COR.b 1 CORE V Mil COREl -CORE VI Mil CORE 11 • CORP III MO COR.!.] 1\ . COllE IV Mil CORE 11 . CORE V Mll CORE II . CORE V Mil CORE. III . CORE I V Mil CORE ill· COR e V Mil c:(JItE Ul· CORE VI Mn CORI: (V . CORE V Mil Q}RE IV . <;:OR E. V J M{l

1-' MO CORE V. LORE VI

~'

(;Ii, Wi} MO MO Mil Mil Mil MO

"f: " .~

.JJ 'WJ

[l')

E

,

'IOOJ

--

A' ___ '~ ____ ~_'~'~' _~. _______ =,~,_. ""'"' ____ M'W'~M_'. ___ M_"" ,.., ," .. ~.",.,~ ___ .. _ 142 No, CF/CT/04! R·4 DATED 01 !04!2013 Cunent Translormer

d ) Ch~c~ tK ,,~duc hd"c('" 1-:111 delhI. point :.Inti I,'arlll ~ I I k\ ill '!It.l!l-o "da~ bOl:

__ ' _0_==-1---=-8.;:;.0 J V. ~IC3surelll~nl Of Second"!) Winding R~,i'lanre (In Ohm)

'hike ofte~li fl g ~il

Oolle of c"~llihrftli /Jn, ____ _ \ II1hienl tem pcr -lurr u

~ r11:~

il"~ r.:1."l ~::" IJ ~~ '111:; UJIU I I ", . '" t-" _ .!lil ~l 1l -, - - - - - J lSI _ 1' .. 4 H r - -r- -I- -~~ I I 2:=t • .!.:) ': 11 --, I

.!Sl -;:SJ 11 - U- + - -1S l 2 ~-1 t-- ---- r--

CURE:: III 3S1 - JSl n -\~I h3 n JSI - JS4 !l

1--' II UW:l= 1\ 4S1 4S~ - -~Sl - '-"ij 11

I~

liSI ·4S4 11 --tORt:. .... ~S, 5S.:! 11 , - -

SSt . ~\\ 11

5::; 1 jS-4 n CORI:. \1 l't~1 - bS2 11 - -

t-- "S I bSl 11 ,51 6'" 11 -

\\. POI ~RIT' T£.sl \.\,; Ilh I , Voll conn.:..:! ._\ ..... 11 PI ,UIIJ 1.ot:!.U P2

,'1-n: ,,[lllm;o_ [;ID IHI1 I rID

10; 1 It \.1;, IS_ f ·\·1·1 L I

I- - -COK'-I lSI JlV[,J lS) I· \ 1'1 ,-

f--' 1St !+\ 1"1 \\<1 "Vi:.)

~11·VI·l 2S2 ( \1:.1

l·OKI II hi 1'\1:.) ~Si( \ I-t , ~Sl.t Vl:) ~S-I ( \" II J 1-, - -lSljt q ·. 11,j!1 Vl:..

CUKl- III lSI 11-\ I:) lSll \ t·.

'''-I (, H ) -'~41 \'1;1 - - -4SII' \'fl -l!);!( Vl)

,·01(1 1\' ~

lSI 11 "1::.. -lS3L\l1 I ~ ·ISI ; 1.\ FI 1541 ·\11·. I --------'- "-'-.~------.-. ---CLlTTC1' Trant)lormsr No CFiICTI01/R ~DA1EDO'IO"f201.3 143

t /Ib

Doc r~o D-2-(Jl-03-01-04 --~_.LI . tr.mo r."~ '.,...IJI.lI]' II!! ~ . ,

(l1TTi'i"l l!irm I :Rom-I 20 ~. I

CORE III 40 % (3S I ·3S2) HO ,.

20% CORE IV 40 % (451 - 4S2)

80 %,

'lO b, CO RE V 40% (5S I •. 152)

81) ~.

20 ~. CORE VI

"'0% (6S I . 652) 80%

20% CORE I 40 % ( ISI·IS3)

80%

20 % CO RE II 40 ~ ... (2S I -2S3)

80%

20 % CORE III 40% (3S1 -353)

80 %

20 ~ .. CORE IV 40 % (4S1 -4S3)

SO ....

20 ,. CORE V 40 '}o (5S I • 5S3)

gO no

20 ~'. CORE VI 40 % (6SI - 6S3)

S" '" 20 '.-\1

CORE I 40% (I SI . IS4) 80 G' Q

20% I CORE II 40 % I (25 I -2S4)

80 %

20 % CORF III 40 % (3S 1 ·3S4)

80 %

20 % CORE IV 40 ~ .. (451 - 484)

SO%

Current Tra~l stormer No CF/ICTI01/R-4 DATED 01104/2013 145

. f IJ -._ - . ' _. ..r,. '_'11 :".

~S 1 1\ \ 1"'1 '''~I \ fl CORI;. \' ~Sl II \ t·, SSJ( \ I 1

""~ljl\i) "~"'.Vl:) - -cOIn VI Mil ,'t\'F. f1S2, VEl

hSllt \ '-I

1-t,s.;( · VI-,

f-- - ---+-,," c,\U I:\S41 vtl ---

\ '11 , Ian Della '\ntl Capat' ihtllcc \Ica,"rcmcllt

'la"' t.· ofle5 Iin~ '-.il

() a l~ ur ,,- alih n lliull

(':ljl llfl l fl ncc

IIH\

Tiln Della

".:.' ----

,

[iY.i!:l\' l~!~1 \}[!J

--I-

.-

~,~. ~77~~-~~~~~--~-~~~~~=-~~ "\'nnl ~"ilbl e I .. nih Tan 0 0.005 (1IIi1t .) :.J.nd R::th' ufri"ic in Tan O('ltit 0.001 per ~ ('flr(ma\ )

-r um I

.-

-•

Oe\ialinn of C apacilaol't: \ ttltH:' from lacrory \, ... llJ e ... lIould he \\ilhin ::r ~ ~'IP oflhe rated \ahlC'

Farfo~ T~sllteflort N. ... f. ~o : __ __

\ '111. Current Ratio rest ~hkt' ufl e!lting kit

Dult' or callhnulon

/lrim;,lry injc(liun thh.1u!!h Primary Inil'dlOn KII1Jl PrllI1; .. \ Tcmlllull rl P1 \lca.., lL r.: th..: curren! II")n Iht "ccond.-,y Tcnnmals

R Ph:.l'Oc-

:!o ~ pt

COl{L I W ~p IISI - 1'\1) 11.41-.

JO -. l.URE " .. 0 w~

I2.SJ .!S1) 1<11" .. r

___ ~ _________ ·'··.V. ________ A_. _____ _

144 NO C"lCT/D4IR·4DATEDOli0412(J13 Currc'"'l TrS'"IsIOIi'llcr

5/ Ib

- r-"&. .J _ •• ·~·Cf"'~ ~, ·.1 •. ~ Doc No. D-2 -01 ·0301 04 ____ _

~,!itf!nml , , .!!II=~ ~1lJ ~ ,

'" ~il 20%

COI{t.:: V 40 % (5S I ·5S4) 80~.

20 U,'i COHoE VI 4l) ", (6S I . 6S4)

~O %

Y Ph ase 20 "!.g

COR E I 40 % (lS I . IS2) 80 %

20 % CORE Il

40 % (2S I . 2S2) ISO %

20'% CORE III

40% (3SI ·1S2) HO%

20 % CORE IV 40 Df, (451 .452)

80 %

20% CORl! V 4l) l' (551 . 552 )

IW %

20 % COHoE VI

40 % (6S1 ·6S2) IW%

20% CORE I 40% (lSI · IS3 )

80 %

20% CORE II 40 '}o (2S1 · 253)

HO ""

20% CORE [II

40% (3S I·3S1) 80 %

10 % CORE IV 40 % (4S1 . 4S3)

80 ",.

20 '% CORE V

40% (5S I · 5S3) . 0%

20 ot •

CORE VI 40% (6S! ·6S3) ~O %

----·-_____ .... ______ ~~_~~_~h ______ ""'¥i ... ' ........ _M''''' .. i4_~ .... ,,-·-...... __ ''' .,.,..... __ 146 No. CFICT/04/ R-4 DATEO01/04/2013 Current Trans/ormer

:t lIb

" -- ... .. !1.. -. -' .. - __ - .._

I :r::~(j~

s."~ Uihl!:ili1 , 1"7.1'lI .] L Ol'.lll ['II

:!1It1)J { 'OJ(l ~ I - -

It'! IS .. UI " "

,,0 ~,' I - - -~U ,.j I

~

LORI: II -tl~t 1'S-I1

40-, - 1-- - ->to -" - - -'--lu~

emu' III - - -I'" IMI

~4i ,.. - - - --!oI1I ,..

- - - - - - -20' ..

t.:OJU; 1\' r- ~ -l"S l 1S,41 -In 1.

loiO .... - - --:' I I"~

COk~ \ I -to" .. 1 'i~1 ~s-q

t .'± - -

-111 ~n l UKa: \ '1 f---- --

fbSI 0')4 ) 411 ~o

I----- -'"I "

~

B Pho"" =-r -~O ",

CURl' I .- t - -~ 1 S I .. ' '''2. 40 ". I

)((1, -

2U~ .. ('ORf 11 .:sO ,. , .!~ I . :~~l

~(I'. -~~I g,.

-U1RL III f---- -('s" - lS;!) \O'!. ..

f--!o!1I ,,~ --- -20 ~ ..

CnR,l:- 1\ - I-W

u" I (-loSI .. 4S!} .-

~n ~ .. 1U 'i"

( 'ut-([ \ I -- -I'ISoI . 'Sl) -Hl";,

1-- r-~II '}" I - -~(I ".

LORE \' I .Uj '. H.~ I - h:,21 1'Itl~ - I-- 20%

-COR!- I - - - - - ---

IIS I .. IS~' .au .... - - - -0

I'CO·j" - -.!u ll

" I ("O Rr II III ' u ! I~Sl ,~ \) --MI"" 1 ~

C',jr~B'11 "rallslermer No CF!ICTIl)IIR 4DAT!:DOI'04!2013 147

Onc No . 0-2-01-03-01-0.1 ___ _

fil1I' :r; :f'liiII:if • • 'I!:. D • fiII1m Ilm:m.t .~.

20 % CORE Jll 40% (3S1 .3S3)

80% _ . 20%

CORl; IV 40% (4S I - 4S3) 80%

20 °" CORE V 40 v",

(5S1 ·5S3) 80 %

20 % CORE VI 40% (6S I • 6S3 )

80% 20 I!tq

CORE I 40% (IS1 - IS4) t-80%

20% CORI~ II 40 % \2S1 ·2S4)

80 "" l O'!.o

CORE IU 40 0 '0 (3S1 . 3S4) ~O %

20 % CORE IV

40% (4S1 -4S4) 80 %

20% CORE V 40 % (5S I ·5S4)

80%

10 % CORE VI 4 () &1.

(6S1 ·6S4) 80 %

Note: Primary current to be injected as per given % or ! 500 Amps whichever is maximum

IX. Magnetising Curves Performance Knee Point Voltage (KVp) = .... . . .............. Volt

R - Phase

148 No. CF/CT/04/ R-4 DATED 01/04/20 13 Currenl Trans lormer

n :!5 \ "'-'-p_+ _____ +-_ln_-"'_--l _____ -t __ _ 11;11,,,\ 1' 111.'\

~~+--------r--~-T-II 75 , K \21',---+__ III ~ ItliI, K\p mA 1.111 , 1\ \ '1' 111,\

I)!', KVp rnA

fI"II,I\\p tn \

117',1\ \ rnA

11111, KVp rH·\

I III, KVI' mA ~

X. COlllacl Resistance Mea~IlI·.menl "lake nf 1l'~IIIIJ! "il

Bill e ur r~llihraUUII

---

At.TO~~ Tcmlinal PI ~~------+-~~+--

"cro~::. TCmlln.1i P2

'I he \ aim.' Qf e nnlne' R ('~i"il a Il C(" ~h l) lIld fl ot br llI ore tiwn 10 M icro - nhmli p('r .Ioilll I CUllncd or

XI. Dissolve Gas Anal~' sis

\lta l' t1 eo mfmlh ul ~h..if 'Lil lo! R<fUf(, cumplc=tioo ,If (JIlt" \-car 01 Ch iU In

xu. SF6 Gas and Density Monitor Test In l "'" of Sl'h g." IiIiC(i (T

''E''Yl'' = J 1 I' I,]

Lu::.~urSF6 \1.nt1ll ~ I "luckuUl Inp

'.) '!J. . 1:1 )l 'II

-..

No CF ,1CT to 1 q ,I JATED 0 11041:10 13 149

10 lib

Doc No. D 2 01-D3-Dl-0~ ____ •

Measurernenl of dew pOin( ofsf6 ga.'

"'1; J!lil ~ R Phase Y Phase 8 Phase

XIII. Shock Indicator impact values (in G) R Phase

Y Phase

8 Phase

Note, : Shock recorder va lue 10 be tilled in case digital recorder or in case of mechanical indicCl tor (-ypc shock recorder OKlNot OK to be mentioned.

XIV. Check of SF6 gas purity

l:i: ________ R_p_ha_s_e __________ ~ ______________________ ~ Y Phase

8 Phase

XV. Final Documentation Review

150

r Final documents of Prf:- Commissioning checks reviewed and approved

II . Document regarding spares equipment, O& M manuals etc ava ilable al site fo r O&M purpose

Ill. After modification, if any, "As bui ll Draw ings" arc <Ivai lab le at site

Signature:

Name;

Designation:

Organization: (Supplier Represt!ntative) (Wherever Applicable)

Signatllre:

Name:

Designation:

(Erection Agl:Il('Y)

NO. CF/ICT/01JR-4 DATE D01/04/20 13

Signature:

Name:

Designation:

(POWERGR lD Site llC)

~ Ii:!l

t:= 1 ,::I

Signature:

Name:

Designation:

(POWERG RlD Conullissioning. Team) Members: I. 2 3. 4.

TranSfo rmer

11 / I.b

.,l. ", ~, _ L'1.. .W( f ~ , OJ,

PRE·COMMISSIONING FORMATS FOR CAPACITIVE VOLTAGE TRANSFORMER

I

R;c~tOI1: S ub-SIJl IIlm:

Fl!l!dt!rname LOM' "_ ,

-Make: Type:

,. St'. Nu.: -- PrimaI')' VullaM,c (,lIling

lli: yO,· uO,· - ---~ccondlll')" \ I)ltaa:~ nt lina:: Secondary Volfagl~ Rurd~n :

Wl ndlng·1 Windin,,- I Winding- II ,","'frHlIlIlHI Wind il!K...!!l --- \\llndlrl2. 1&1 \'olUIgc ClIIln: Purpose ur Wi nding, I ,\ol nd ing-1 Wlndhlg U Wlndi nJ::-lI Wi ncj lng III \\Iindh.· III R .. lln",: Feede ... name:

ye .... or I\'t..lluracluft!: Ila le of R~~efl" at !101ft : RO,· RO,-\0,· ya,. 110:- 110,· 1)301(' Dr En!ctin n : 1>' .. Ie of ~lItrg.b.il(iun

K 0 ,· \0, 110, ---

II. Pr~·('ommi~sioning Check~:

. l'nJ . ~'1!llID fiffiI---:-:~iIl

lY'Ri r.:D 'l1].l-

I b.IUI[Hlh.'nI I .... clc\lm:d and he'\: i"nJm JU.'II din fllrcilm m;.tI~IIJ I .... e l L' , f<luiPlllelll is It ~( I r~Jnl ,I ll .. i"lblc defCl:b l'R_phn. iL:'al inspecliun

-'-~~C(_~l \ T unh h.l~ht.:'_~n ---I!.ll." 1I i.!'J \\.l lh _d,~ujlJc ~j!!j hlllg ( hi'l':l. Ihal r \ I m~tr:-,h;/llln~~ hll, 1~4';'rl ll~-d r(l(TI..:~II~ it .... plT ::lrr..:'l:Ilil..-d

4_ IUI~UC -< \11 nuts and bulb arc Ih.du~n~d 1-- - - r 1-11 _ rl hl'~k IIphLnc~~ Ollcm1lnai ~unnL!L.:u.u

,\llilH1r1i:!~ J.~ P':l \lu lhllr.:' I!cncl'<l1 Mmngcnlcnl d ril \\ int!o ~ Lubdmu ;lIId ItICI11111";;l llulllIl,lrJ..lnl! I~ ":J ITI_~~ ~!\I1_ I , ~ I a:\"~hn1.! ilnll.dJ 'nm\.'n1 til ~lructUn!' and bJ~~ iramc i .. t:hcd.:cd I

~- -~.aOi1~ltIV~ VOI!agB T1a.,sforrOl'f • " CFICVTll1bl'l ~ DATEDOl'l)~'2013 1 51

Ii,. /16

Doc No. 02.01-03-01-04 •••• _

-

Ini.---, ,

t, lIT I ~ Erection completion certificate along with li s t of outstanding acti v ities

10 reviewed II Any paint removed l scrntched in transit has been touched up

S I. No of HV capacitor identical to the sl.no mentioned on rating & 12 dig. Plare 13 Ensure brass vent plug between stacks of CVI's is removed 14 Check Ihe oi l level and leaka." through any joints I sec . Terminals

15 Check oil drain val ve is orooerlv closed and loc ked. 16 Oillcvr! on lan k gauge glass 17 BDVofoil sample taken from tank bono nl drain vrt lvc

Check secondary cable end box is properly fixed and ensure cahle entry 18 at tbe bottom.

Ensure HF lerol in3! of unused phases bas been eanhed and no load 19 on HF tenni nal bushin2

Check rating / healthiness of fuses at CVT lllarshaling.b and C VT 20 termintd box .

21 Check that (hc neutra l POlllt is C~lrthcd

22 Ensure intcmo1c cabling is c ompleted and ch eck the continuity. Chec...:k the IR val ue of secondary cable ( > 50 m ohms for control

23 cable, 1 24 Check external cabling from m.b to relav I control o.nel completed

All the cable identiiic atio n tags provided and all c ores are provided 25 with identification felTUlcs at m.b.

2G Check all the fu, el MCB

III. Continuity Of Winding (After removing Earth Link \, 2 & 3)

1. Between terminals la - In

11. Between tenninals 2a - In I , III. Between terminals 3a - In

IV. Insulation Resistance Measurement

USING A MEGGER OF 5KVI 10 KV

Prim core I Mil

COl'\;.' ~ Mn

Primal - secondary cor~ J Mil

Prima - earth n M

Permissible Limit should be MIN 1000 Mil

152 No.: CFICVTI05IR·4 DATED 01 104/2013 Capaciilve Vollage Transformer

13 lib

11 '"

\" SccondaQ Winding Rcsi<tancc - ,hm ~

~~ r'.~. ,~-~ r;t; -~.

GIl> J ..\~~

f- It 0 - - - - -YO -no -

Facto~ tcliiit rcpo.", rcf. :'\u

\ I. I'I~U_ATIO" R[!. IST \;\j(' E ME.\SI RF~II: :\T

t r~m~ .\ t\k~g~ .. nl soo V,il

~ - - [;] (!! \lrtJ G)]1

SacclIlld;lry ~t)IC I -I..'.ulh \1U -Sc,,:ol1dJrv ~on: 2 - r.:anh \-Hl - -")ccnndar) ..:on.:;\ - l".uth Mil -CI'r'l.' r -~lIr~2 '1U lon.: I cflrc:: .~ MU l (Ire" ~ - ~(Ir(' .3 :-- Mil

'-

Permissible Limil .hould be \11" 5U i\IU

VII. \ OI . IM;" R,\TlO 1."'-1 UI . l~:iI ~ ,

~ ~ i:lii5i , I~ , t,'fitJ

R r---- la_..!. Lj t 1J 2 n -33 3 II

; I _ . I. I n y 2..1 2n -f' .1a 3 n

lu I n I -B 2;1 2 f l -.;" ~ n -

Permi",blc Lim,l should he min ± 5 % f(1I" prolc~lion core, lind ± U.S % for melering corcs

l\olC'· a) \ppl) "ollage oflhe U1d~ 1 uf 10 kV acros~ line cap'lcilor (lOp flange) 10 earth link 0) I:.nsure 311 eartll Imk, ('onnected

VIII.

______ __ w_. _________________ _

CdtJdtl\tVe Vol1uYIJ Translormp' 'I" CF '"CVTl05/R ·WATfD 0 II1W20 13 153

\ 4 /1 b

E~~~ ______________ .DOC No D-2-01-03-01-04 ___ _

II. Ph as ing ( phase relationship) o f CVT by measuring vo ltage between R-phase, Y- phase and B-phase at incoming tenninal in control cubicle. fo r one c i.rcuit of the checked CVT and out])U! teminals R-phase, Y -phase and B-ph of a rel'erenee circuit (existing CVT) w ith known phasin g

R0

Y0

80

IX. TAN 0 AND CAPACITANCE MEASUREMENT

Make of testing kit

Date of calibration

Ambient temperature ___________ _

Capacitance ., ft,

li (IlCD JIlL ~ .llJm M) TOP

MIDDl.E I

M lDDLE 2

MIDDLE]

BOTTOM

TOTAL

11.;:;1 ~ "

[1:nmJ' ~um... mm .rom '_\lID TOP

"<Inn' r." "Inn, ,, ?

",nn' Ii )

TOTAL

Permissible Limits Tan 6 0.005 (max,)

" ;I .

mC!t IlltW" V(fJ'

. , .. ' .,-:-

1il(D ..IIlQ] ;'a'm

Deviation of Capacitance value from fa ctory value should be within ± 5 % of tbe rated value

mGl

IlJrD

For bottom stack, the measured values shall be considered as base value and nlay not m:atch factory test results.

factory Test Report Ref. No: ____________ ______ _

154 No., CF/CV'r/05/R·4 DATED 01 /04/2013 Capacitive Vol tage Transformer

t.

II . I h"l:UI11t..'1l1 n:gardmg "'p;lr~~ Ct1UII"lh.'I1L ()&.(\I m.1nud l ~ cIt: ..I\'~lllnhk ;U ..;11

lor O&M pu<po,"

SI~Il;1tlJrt' :

DL'.5iign.Juon

OrgamZrltlon (Suppher Rcpre!ientatlV(I'l

l Whercwr Apphcahlel

Signaturl':

Name:

OeslgnJlll}o '

[ErectIOn Agpncrj

Nal11e:

l)csign.llion.

[POWERGRIO Site I/C)

~.

Designation:

(POWERGI1ID CommisslUnmg Team) Membt'rs: L 2. J . • 1.

1

_____ . __ w .. ·.· ...... ____ _

No CF/CVTI\lSiR1 DATED 01/04 '2013 155

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Technical Specification, Section: Switchgear-INST C/ENGG/SPEC/SWGR/R11, JAN 2017 Page 1 of 34

MODEL TECHNICAL SPECIFICATION

SECTION-SWITCHGEAR-INST

(INSTRUMENT TRANSFORMERS)

(REV. NO. 11)

SECTION-2 Detailed Technical Requirement for 420kV and 245kV Current Transformers

Folio" in g arc the major changes ll1ad~ In Ihe Techn ica l srcc ilk3ti<l J1 . <;cctw n-<;w llchgear-IN<;T Re~ . I I:

MIl 'or Modification Clause 1'\0. I. __ +:N-'.'e,:,-" IF:C-61869 referred.lliC-600.U is SU ergeded by U:C-61869

2~5kV :lOd above ratin CT orc acee table" ith Pol) mer Insulator Cantilever ,trell th for 72.SkV hl,trumeot 'I"an,former S ecified Lin Tank CT shllll be preferably nf Bar primary design wilh SS

2. 3. ~ .

:-___ +:B:::",.,.lIo"" 5. T)p. test & Special test re,!uirements menlinnetl in line "ilh IEe-

61869 6. 7. 8.

DGA sampling after commissioning .hlborated ___ -j..:R:c=:e :!,u" i::-rc. men t of 0 i I ,II m pli n g d e"i ee.:a::d::I::I,,::d'-.-:----::-:-__

ncr.C! liubility clause added for actioos required in c:lse of defects

1

f-:-____ +'obsc rv cd d" ri 0 wa rra:::n~t e:::e:...cp!:Ccr"i"o"d,-_ -=:::-.,-9. I'ruledioo class of CT meol"ioDcd as " PX class" in line with lEe-I

611169

'o'e: The above is the list of Il1lljor changes " ith respect to prev ious reviSion (Rev. 10). I lowe\ er the bidders a re advi'cd \(] read the entire ~ect ionlch"ptcr for OIher change, and q uote accnrdingly.

Technica l Specilicatloll. 'leeri ()n : S lIltchgear- I'IST C/ E:I\G(, ISP[O WGRJR II . JAN 2017 Page:! nf 34

SECTION-SWITCHGEAR-INST

INSTRUMENT TRANSFORMERS

CONTENTS Clause.No. Description

1.0 General

2.0 Constructional Features

3.0 Current Transformers

4.0 Yoltage Transfo rmers

5.0 Terminal Connectors

6.0 Tests

7.0 Mandatory Spares

8.0 Technical Parameters

9.0 Pre-Commissioning tests

10.0 Defect Liability

Table-IA Requirements of 800 kY CYT Table-lB Requirements of 420 kY YT Table-IC Requirements of245 kY YT Table-ID Requirements of 145 kY YT Table-IE Requirements of n.5 kY YT Table-I1A Requirements of 800 kY CT Table-liB Requirements of 420 kY CT Table-HC Requirements of245 kY CT Table-lID Requirements of 145 kY CT-800A Table-lIE Requirements of 145 kY CT-600A Table-IIF Requirements for n.5 kY CT

Annexure-I Technical Parameters of CT Annexure-II Technical Parameters of CYT/IYT Annexure-III Wiring diagram for CT Annexure-IY Wiring diagram for CYT Annexure-Y Actions required in case of defects observed

during the warrantee period

Technical Specification, Section: Switchgear-rNST C/ENGG/SPEC/S WGRlRII, JAN 2017

Page No.

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1.0 GE ERAL.:

SECTIO:-;-SWITCHGEAR-Jj~ST

L STRUMDIT TRAl\'SFORMERS

1.1 rh" in,lrul11cnl IrUi15fonner. (lOd acees,or;c> shall conform 10 the lalcst version or Ihe standard" 'peci Ilcd belo\\ C\Cepl to Ihe C\lent c:>.plic itly modi fi ed ill tim ,pecliicatiol1 and ' hall he in accordance \\ it h Ihe rcqlllremenls 111 Sectlnn- ]I

Currcml ran,rormers (CT) ' IEl ' 61869-1 & 61869-2 or IS' 2705 P"rl-I 10 4

Capaclli"e Voltage Trun~fnnller, ICV n: lEe: 61869-1. 61869-5 & lEe-(j035X Of IS-3/56 Pllfl- IIII 4

InduCli\c Vnlta~e Tran,former, ( IVT): IEC : 6/1169-1 & 61869-3 IJ/' /S-3156 P"rl- I 10 J

1.2 I he Instrumelll trB lhlimllers shall be dC"~i1cd lor usc in geographic and me teorological conditions as gl\cn in Seclion- and Section· I

]I

2.0 CONSTRUCTION FRATl'RES:

The fealures and constructional deL~l l s of inslTUl11em Iransfom1crs shall be In acwn,hmce With rcqtllremenls stipulated hereunder:

iI) Instrument Iransfonllers of 800kVJ420kVn45kV/14~kV/72.5 ~ V doss, 'holl be oi l fill"d/ S~. gas fil led, suitahle for outdoor service and upright mounting on steel slruclures . 2;J5kV, 420kV and 800k V (T shall be \I ilh po" mer insulalor

b) Rushings/lnsulators shall con rorm (0 requiremellls stipulated in SectioI-I3IIII , fhe bushing/insulator for CT shall be one piece " ithoul al1) m~lalli c Ilangc joint.

c) Oi l filling ami drain plugs . 011 sight glass sha ll be pnwlded I'or CT & Iv T. Oil s -ight glass shall be provided for electromagnetic uml 01 CVl . Tile Il1slrlllllelll IrtIlUj'Orl1II!T ,<" ,,11 ",,"'e ClIl/lilcl'er slfel/~III of lUll II!<X 1//111/ 500 kg. 500 kg, 350 kg, 3511 kg fllld 2.'i1l I.;.: rl!spl!"lil'I!~V f(lr

8001. V, 42()k V, U5A V. 14.'if; V "lid 72.511 V IlIstrllllrclll Trulls/tmrrl!r>. For CVl l lVT \\ ilh pol) mer hOllsing, the cant ilever strength shall nOI be less lhan 150l..g. Oil fill in g anJ drain plugs are nol required lor sr. gas filled CTlIVT

d) InsLrul11Cnh trans rormers shall be hermetica lly sealed un i", The details of lhe armngeOlen~ made for the seal il1 g of in\trumcl1t l mn..,f~'rmers

, hall be furnish during delailed engin eermg,

1 echnic;" Specilicatlon. Seclion: <'\\I[chgeal'-INST C/~'(iG/Sr IT/SWG RJR II. JAN 2017 Page 4 of .1 ..

6100864

Callout

6100864

Callout

III

e)

g)

h)

i)

Polarity marks shall indelibly be marked on each instrument transformer and at the lead lenninals al the associated telminal block.

SF6 gas filled CTIIVT shall be provided with a suitable SF6 gas density monitoring device, with NOINC contacts to facilitate the remote annunciation and tripping in case of SF6 gas leakage. Provisions shall be made for online gas filling. Suitable rupture disc shall be provided to prevent explosion.

The instrument transfonners shall be complete with its tenninal box and a common mar>halling box for a set of3 instrument transformers.

The external surface of instrument transformer, if made of steel, shall be hot dip galvanized Or painted as per Section-· . ' . External surface of aluminum can have natural finish. ]I

The impregnation details alongwith tests/checks to ensure successful completion of impregnation cycle shall be furnished for approval.

2.2 Terminal box/Marsballing Box:

Terminal boxlMarshalling Box shall conform to the requirements of Section- ]I

2.3 Insulating OiUGas:

a) Insulating oil to be used for instrument transformers shall be of EHV grade and shall conform to IS-335I1EC-60296 (required for first filling). Non- PCB based synthetic insulating oil conforming to IEC 60867 shall be used in the capacitor units ofCVT.

b) The SF6 gas shall comply with IEC-60376, 60376A, 60376B & lEC-60480 and shall be suitable in all respects for use in the switchgear under operating cond itions.

2 .4 Name Plate:

Name plate shall confonn to the requirements of IEC incorporating the year of manufacture. The rated current & extended current rating in case of current transformers and rated voltage, voltage factor & intermediate voltage in case of voltage transformers shall be clearly indicated on the name plate.

3.0 CURRENT TRANSFORMERS: a) Current transformers shall have single primary either ring type or hair

pin type and suitably designed for bringing out the secondary terminals

Technical Specification, Section: Switchgear-INST C/ENGG/SPEClSWGRJRII, JAN 2017 Page 5 of34

111 a " cath er proof( IP-5~) tcrm innl bo, at Lhe boLtom. ['r (Tan delta ) t"mlinol for rnca,urcmcnt l1f wn delta and capac Itance of the uni t shall hc r rovided. These seco ndary tcnnina ls shall be tenni llated to stud t~ pc no n d iscollnec! ing lenn inal blocb ins id e the tenninal bo~ .

I" case of inverted I ) pc (Li~'e Tunk) cu rrent ["nsfomlers, lhe manu ra~turcr shal l meel follo\\ ing addi lional requiremem"

(i) '1 he primary conductor shall preferably he uf bur type meeting the desired characteristics.

( ii) The secondaries sha ll be tota lly encased In metall ic , hidding Jlrovidi ng a uni foml cq lll pote ntial surface lor c\en ckotric I,dd diwibution.

(ii) The I<mcst pan of the insu lation ""clIlo ly I.e. insulatiun lit neck sha ll be propcrJ) secured to avoid an) ris~ of damage llue tu trunspurlalion stresses.

(iii) The upper pan or insulalion a,sembl} rcstillg on rri"1(!') bar shall be prnpcrly ,cclIrcd to avoid an~ damage during Irun'pm1ali"n due to rdat ive movement hcl\,ecn InsuJallon assemh ly & lOp dome .

(1\) Bello\\s Dlade ur ~Iainlc" stecl shall be used al tlw 101' rur herlltetic sealing of CT.

(v) Bidder/Maml racturcr shall recommend whether any special storage facilily i, requ ired lor spare CT.

b) Differelll ro tios specified shal l be achieved by secondary laps an i) and primar) reconnection sha ll not be accepted

c) Core I.m inalion sha ll be of cold rol led ~rain orienled s ilic lm steel ur nt her eq uivalent alloys. fl metal or nano-cryslalline core can also be used fo r mctcrin~ cores .

d) The cx p:tnsiol1 chamber at the lOp of the porcelain in sulatOr> should be su itable l"If ""punsio n ,}f nil.

e) Facilities shall be provided at tenninal blocks in tho marshal lmg "ox for star delta forma l ion . short circuit in g and grounding of C r secol1da~ lerl11inal,.

I) Currenl Tran,fonner s guara.nteed "llfdens and accurdc) class are to he inlended as ,imultaneous fo r all cores .

g) The rated ex tended currents fo r 800k and 420k V class Current transfonnc rs shall be as given belo\\ .

I echmcal Specification. Scction' Switchgeal'- I1\ST CiENGG/SI'EClSWG RIR II . JA~ 2017 r age 6 of 14

Tap Ratio SOOkV,3000A 400kV,3000A

Rated extended currents in % of rated current

SOOIl 200 200

100011 --- ---

2000/ I ISO ISO

3000/ I 120 (200 for IS min) 120

h) The secondary winding shall be rated for 2A continuously.

Further, the intennediate tapping at 3000-2000 of metering core of 3000 A rated 400kV and SOOkV CTs shall be suitable for using as 100011 ratio also. The Auxiliary reactor, if used, as referred at wiring diagram NoOOOO-000-T-E-L-02S shall be suitable for connecting to the selected taps. The requirements of 3000A CTs are given at TABLE II-A.

For 24SIl4S/72.SkV class CTs, the rated extended primary current shall be 120% (or 150% if applicable) on all cores of the CTs.

h) For SOO/420/2451145/72.SkV Current Transformer, characteristics shall be such as to provide satisfactory performance of burdens ranging from 25% to 100% of rated burden over a range of S% to 120% (or specified rated extended current whichever is higher) of rated current in case of metering CTs and up to the accuracy limit factor/knee point voltage in case of relaying CTs.

i) The current transformer shall be suitable for horizontal transportation. It shall be ensured that the CT is able to withstand all the stresses imposed on it while transporting and there shall be no damage in transit. The Contractor shall submit the details of packing and transportation design to the Employer for review.

j) For SOOkV CTs, the instrument security factor at all ratios shall be less than ten (10) for metering core. For 420/2451145/72.SkV CTs, the instrument security factor at all ratios shall be less than five (5) for metering core. If any auxiliary CTslreactor are used in the current transfonners then all parameters specified shall have to be met treating auxiliary CTs as an integral part of the current transfonner. The auxiliary CTslreactor shall preferably be inbuilt construction of the CTs. In case these are to be mounted separately these shall be mounted in the central marshalling box suitably wired upto the terminal blocks.

k) The wiring diagram plate for the interconnections of the three single phase CTs shall be provided inside the marshalling box. A typical

Technical Specification, Section: Switchgear-INST CIENGG/SPEClSWGRlRII, JAN 2017 Page 7 of 34

"iring diagra m no. OOOO-OOO-T-E-L-028 (~h I & 2) " ~ndmcu

here" Ith at Annc\urc-1I 1 of Ihis spl'rificalion .

I) The ,urrcnt ·1 ran,fonner; , hould he \llllabk Ii)r Illolmting on laHle" ,tructure (for SOO ~ V) l1r pi pe structure (lor ·120 I- Valid hclo ll') In be provided h) Ihe Contractor in accordance with st ipu latinn, of Sect;on-I/1II.

/Seetiml-St ruel u re,.

111) r he C r . hall bc dc.igm::d so as 10 achieve Ihe minimum risks of C\pIOSIOll III SCf'iL;c . B i dJ ~rfMan uracturer sha ll hring mn 1I1 h,s offer. the mea,ure, l3 J"cn tll achieve Lim.

n) KOO/420/:'.4S/ 14 5~ V Current r ranslormcrs ,hall be ,u itable for high ,peed autll redo, mg.

-1.0 VOLTAGE TRAl'SFORMERS:

a) 800/42012~51l45kV Voltage I ransfomler~ shall he <:apJcltor voltage divider t}pe II ith cleclromngnc tic unlls and , hal l he su ililblc for carner couplm g.

b) Vollage translormer. >ccondaries shall be protected b) IIRl cartridge type fus~s or MeSs for all tlte \\ indings. In addition. fuses/MCBs ,hall be provided for Ihe protection and metering windlOgs tnr fuse 1110nitor-Ing 'chcl11~. The secondal) terminals of Llhe V I s shal l be terminu teJ to the ~tud type non-<i isct) nnecting terminal blocks in the ind iv idual phase seconda" boxes via the fuse/ MCRs.

c) ('VTs shull be sUItable for high frcqllcncy (IIF) coupling required i"llf power line carrier communicat ion, Carrier 'ignal must he prc'entcd fro m fl,,,, ing inlo potential Iransf0n11Cr (EMU) Circuit by mean' I'lf .1 RJ-" choke/reaclor suitable fo r effecti \ el) blocking the carner "gnab over the entire carrier frequency range i,e 40 to 500 Ki ll . II r terminal of the CVT shall be brought nut through .) su itable hushing and ,hall be ea.s il) accessih le fur cnnncetion to Ihe euupling fi lters of the carrier communication cqulpl11enL when utilized . Further. earthlllg link wilh fastener to be provided for HI-' terminal.

d) The electromagnetic Unit compnsll1g compensating reactor intermediate transformer and protective and damping dcvic~'S ;hould have ;cparate terminal bo~ \\ ith all the ,ccOIldary Lcrm inals brought out.

OJ The damping de\ icc, which should be permanently connected tll one of the secondan wi ndings. should he capable of supprc"tng the ferroreSOIlHI1C\! tlscilhllion~ .

I) The accurae) of 0,2 on ,econd.r~ III for ~II CVI sllV fs should he m'limamed through (l ut th~ emire burden range upw 50 VA (1n .11 the windings \\ ithout an) adjustme nts during operation

TechOlcal"pecltlcallun. SectIOn: Switchgear-I s·r C'ENlJG/Sl'l:OSWGRJRII. JA~ 20 17 Page 8 of 3-1

5.0

6.0

g) The Voltage Transformers shall be suitable for mounting on lattice structure (for 800ky) or Pipe structure (for 420kV and below) to be provided by the Contractor in accordance with stipulations of Section-Pro j ect/Section-Stru ctu res.

h) It should be ensured that access to secondary terminals is without any danger of access to high voltage circuit.

i) A protective surge arrester shall be provided , if required. to prevent breakdown of insulation by incoming surges and to limit abnormal rise of terminal voltage of shunt capacitor/primary winding, tuning reactor/RF choke etc. due to short circuit in transformer secondaries. Alternate arrangement shall also be acceptable.

j) The wiring diagram for the interconnection of the three single phase CVTs/IVTs shall be provided inside the marshalling box in such a manner that it does not deteriorate with time. Wiring diagram no .: 0000-000-T-E-L-029 enclosed herewith at Annexure-IV of this specification shall be followed.

TERMINAL CONNECTORS: (NoT IN StorE of ~U!'fL'1')

The terminal connectors shall meet the requirements as given in Section-GTR aod techoical parameters for the respective equipmeot as per Annexure-I aod Aonexure-II of this specification.

TESTS:

6. I [n accordance with the requirements in Section-. ., Current Transformer and Voltage Transformer should have been type tested and shall be subjected to routine tests in accordance with rei evan t lEe.

6.2 The test reports of type tests, as applicable, as per IEC-61869-2 for CT, IEC-61869-S/IEC-60358 for CVT, and IEC-61869-3 for IVT and following additional tests shall be submitted for the Employer'S review. The type tests for which the procedure is under coosideration as per abovesaid IEC is oot required to be considered.

a) Curreot Traosformers (CT):

i) Corona test as per Annexure-A of Section-above voltage rating.

\if for 420kV and

ii) RlV test as per IEC-61869 or as per Annexure-A of Section-'"liL . for 145kV and above voltage rating. However, RIV level

shall be as specified at Annexure-II of this specification.

Technical Specification, Section: Switchgear-fNST C/ENGG/SPEC/SWGRlRll , JAN 2017 Page 9 of 34

1IL Iii) Sei smic \\ it hstand tes t as per A nne~ure- 13 of'icetion- IIr IEC-

62271-2 (with Seismic IIcc~lerntioo requirement as )lcr Anne.\ure-I of this s pecification l ' ection- ) for 14SkV snd abo, c voltugc nttiog_ ::t I rn:

iv) '1 hcrmal stabi I II~ test. i ,c. applicati on of ra ted vultagc ,lnU rlllcU e.\ tended thermal current sim ult Gncou, l) b} s) l1 lhdic le~t circui t for 145kV and .. ho'c , ollage "Iling ( 1101 app licable fnr ~r(. IiIku e l ).

v) Thenll 01 co-effic icnt le,t i.e . mCJ,uremcnt of tan~ch" os a function "rtemperature (at am hien t al1 d belll ecn 8()0( & 9 ()OC) and \ oltage (al 0.3. 0.7 I.U and 1. 1 Uml\l) fo r 145kV and above voltage n lting (11 01 applicab le for sr. lil k d (,T)

,, ) 'v1u ltiple chopped impulse lest (nol appl icable fo r sr , I. lieu ("'1') \\ il h the appl icalion o f 600 chopped illlpui ses fur 145kV :tnd abo>'C , ullage rating

vii) Tran,millcd o,'cr voltage test for 14SkV and above voltage nUing

\~ ii) lechuRical lest (with minimulII Cantilever lund liS per dause no. 2. I.e) for 14SkV and ahove "ollage rating

h) Intenal Arc fault lest for 145kV and ahove "nllage rating (not applicable fo r CT \\ ilh Pol} mer Insulator)

\ ) Enclosu re tigbtnes, test at low & high tempemture fur SF. filled CT of 145kV and above voltage rating

li) Gas de" poi nl tesl I'or SF 6 filled CT

\ii ) Curro.ion 'esl for 145kV and abo,'e ,ollage rating

b) Capacitiv. VoUage Tnll1sformers (C VT):

i)

ii)

HIgh frequency capac ilance and C<.lui\ alenl senes resistance mea,urement (as per I[ -60358)

]I.. Seismic wit h,tand lest (as per Annex ure-B of Seclion- ) nr fEC-62271-2 (" ith Seismic acceleration requirement as per Antle\ u re-II of Ihi" specification/Seclion· .) for 145kV and ahuve "ollage class. :I. t:1iI Stra~ ca pac itance and tray ond ucta l1ce measurement Il l' the It\\\ voltage term ina l (11' pe r IE( -60358)

fechntcal Specilicoll on. Section: Swilchgca r-rKST ClEMiG/SPf'CJS WGRlR II. JAK 20 17 Page 10 0 1' ]4

III iv) Corona test as per Annexure-A of Section-

above voltage rating. for 420kV and

v) RIV test as per IEC-61869 or as per Annexure-A of Section-][ . for 14SkV and above voltage rating. However, RIV level

sball be as specified at Annexure-U of this specification.

vi) Transmitted over voltage test for 14SkV and above voltage rating

vii) Mechanical test (witb minimum Cantilever load as per clause no. 2.l.c) for n.SkV and above voltage rating

viii) Determination of Temperature coefficient for 14SkV and above voltage ra ting

ix) Tigbtness design test of capacitor units for 14SkV and above voltage rating

x) Corrosion test for 14SkV and above voltage rating

c) Inductive Voltage Transformers (IVT):

i) .

ii)

Seismic withstand test (as per Annexure-B of Section· ) or IEC-62271-2 (witb Seismic acceleration requirement as per Annexure-U of tbis specification/Section-. ) for 14SkV and above voltage rating. :r IN Corona test as per Annexure-A of Section-· fol' 420kV and above voltage rating . :rtm::

ii) RIV test as per IEC-61869 or as per Annexure-A of Section-1lL . for 14SkV and above voltage rating. However, RIV level

shall be as specified a t Annexure-II of this specification.

iii) Multiple chopped impulse tcst with application of 600 cbopped impulscs for 14SkV and above voltage rating (not applicable for SF6 filled CT).

iv) Transmitted over voltage test for 14SkV and above voltage rating

v) Mechanical test (with minimum Cantilever load as pcr clause no. 2.1.c) for n.SkV and above voltage rating

vi) Enclosure tightness test at low & high temperature for SF. filled CT of 14SkV and ahove voltage rating

vii) Gas clew point test for SF. filled CT

Technical Specification, Section: Switchgear-lNST C/ENGG/SPEC/SWGRlRII, JAN 20 17 Page 11 of34

viii) C u.-rosion lesl for 1~5kV and above vollul!c nltin g

h) Mcasu .-emcnl of Capacitance and Dielectric dissipat ion factoo· for 1-l5kV lind a bo,·e >ollage rating

6: I h~ current and vullage lrJn,fonllcr shall be ~lIbJ ccted to [he fn llo\\ ong routine leSh in addil i.,n In roul in e tests as per relel'llllt IEl-

a) CT RR E:'IIT TRANSFORMERS:

ROLJTI""E lTSTS:

F<>r a,l filled C f:

i) M~nsurcment o f Capacitance.

i i) 001 leakage lest.

iii) Ivlca"or~l1lenl o t Ian delta at 0.3.0.7.1 .0 and I I Lm/ \3 .

flli..S..E" fi II ed (" T :

i) Dc I' poinl measurement

II) <;r, alarm l loc kout check .

II I) SF. gas leakage test: Gus leakage ral e s ha ll he ma intained within I),=!% r cr ann um.

b) VOLTAGE T RANSFORMERS:

ROlltille tl!st., till CVTlf VT .,·/11111 be dOll e itllille wit/r IEC-6J869-J/6/H69-J.

7.0 MANDATORY SPARES: Ridder , hall onelude in his proposa l ma"datal) ' pares a~ mentioned in the Bidd ing f)"c umcnt<; .

8.0 MAJOR TEC HN ICAL PARAM ETERS:

Mujor tccltnical paramete rs for 800kV/420kV/2-l5kVII 45kV/72.5kV Instrument Tran,formers lire enclosed al Annnure-I "nd Annexure-II to this s pccilicali()lI .

9 .0 P RE-COM:\IlSSI0~1 G T EST S

9. 1 An indl~a tlH lIst nf Ic,l, is glWIl be low. C:0 ntraclor sha ll perron" a ny addtliona l test based on spec ia lties or the items as pcr the fie ld Q.P.l lnst ructiolls of the equipment Supplier or Employer "ilhout am extra COSl 10 the Empln\er. The Contractor shall "rra nge all in s trumeuts

'1 echnical Speci IIcatian_ Sectinn S \\ itchgear- IN ST c" I:MJCilSPIT IS WCiRIIU I. JA1\ 1017 Page 120134

required for conducting these tests alongwith calibration certificates at his own cost .

. 9.2 Current Transformers

(a) Insulation Resistance Test for primary and secondary

(b) Polarity test

(c) Ratio identification test· checking of all ratios on all cores by primary injection of current

(d) Dielectric test of oil (wherever applicable)

(e) Magnetizing characteristics test

(t) Tan delta and capacitance measurement

(g) Secondary wind ing resistance measurement

(h) Contact resistance measurement (wherever possible/accessible)

(i) Test for SF6 (for SF6 filled CTs) - Dew point measurement, SF6 alarm! lockout check

U) DGA test of oil

r Dissolved Cas Analysis (DCA) shall be carried out twice within the first] year of service, first within the first month of commissioning/charging and second between six months to one year from the date of commissioning/charging.

CTs/IVTs must have adequate provision for taking oil samples from the bottom of the CTIIVT without exposure to atmosphere. Manufacturer shall recommend the frequency at which oil samples should be taken and norms for various gases in oil after being in operation for different durations. Bidder/Manufacturer should also indicate the total quantity of oil which can be withdrawn from CT for gas analysis before refilling or further treatment of CT becomes necessary.

i Bidder shall supply 2 nos. oil sampling device for every 20 nos. oil filled} CT supplied with a minimum of 2 nos. oil sampling device for each substation.

9.3 Inductive Voltage Transformers/Capacitive Voltage Transformers

(a) Insulation Resistance test for primary (if applicable) and secondary winding

(b) Polarity test (c) Ratio test (d) Dielectric test of oil (wherever applicable)

Technical Specification, Section: Switchgear-INST C/ENGG/SPEC/SWGRlRII, JAN 2017 Page 13 of34

(c ) Tan dclw and capacitance measure me nt " f Indi" id ll al l: il pa<: llor ,tacb ( I) 'iccondary W IJld in g reSistance meJ \urcmeni

I' or pre-commiss io ning proced ures and i() rmals for Cu rrent Tran, fomler •. J) (\~ ,No . : Cr:/CTi04IR-I dld-OI.O'+ .20n and Cc' r Voltage frans formcr>, CF/CVTI05/R-I uld-O 1.04 .20 1 1 under POVoTRlJRID document no . D-2-0 1-03-0 1-04 w il l he the reference document T his documenl will b. Hailable .. I respective sile", and shall he referred b) Ihe conlraclor.

10.11 Defect Liability

The acHon~ required 10 ~ luken b~ conlraclor in case of dcr~cl.) othcn'ed in ell,VT of ralin~s 1~5k\ & abo,. during Ih. ""rrant) period (drfeci liability pcriod) ~IUlII be ,,-, per rnclo,ed Anne,u,'c-V of this specificatinll. Furth .. , ,h. rcplaccdl replliredJ .. efurbished cquil'lnonl (nr part of equipment) shull haH T\\o (2 ) ) car~ ",arr'Jllt) "ithC)ut prejudice to cOlllraClual "arr.mt-y period (defect linbilirj period).

Technica l Specification. Sc<:(ion, S\\ itchgear- INST Ci[NGGISPI::.ClS\\'G R/RI I. Ji\'\ 20 17 Page 14 nf14

TABLE -JA

REQUIREMENTS OF 800 KV CAPACITIVE VOLTAGE TRANSFORMER

S.No. PARTICULAR

I. Rated primary voltage (kV rms)

2. Type

3. No. of secondar ies

4. Rated voltage factor

5. Phase angle error

6. Capacitance (pt)

7. Core detail s

a) Voltage Ratio

b) Application

c) Accuracy

d) Min. Output burden (VA)

• Capacitance val ue shall be as specified in BPS.

Technical Specification, Section: Switchgear-INST C/ENGG/SPEC/SWGRlRII, JAN 2017

800

Single phase Capacitor VT

3

1.2 continuous

1.5 - 30 seco nds

± 10 minutes (For metering core)

4400/8800' (+ I 0% 1- 5%)

Core-1 Core-2 Core-3

765 /0.11 765/0 .11 765/0.11 ~ "3 1373 ~73 Prolec- Protec- Meter-tion [ion mg

0.5&3P 0.5&3P 0.2

50 50 50

Page 15 of34

TABLE - 18

REQlIRF:MENTS OF·nO KV VOLTAGE T RANSFOR:\1 ER

S \1,\ PA R rill LAR

J. Rated primary voltage (~ V nm)

~ T)pc

:1. No. of secondar ies

4. R(tted voltage factor

5. Pha,c angle err"r

6. Capacitance (pI) (furCV,, )

7. Core deta ils

a) Vu ltage Ratio

b) Applicat ion

c) Atturac)

<1) \1in . Outp UI burden (VA)

• ("Jpaeitance value shall be as speci fi ed in BPS .

l'edll1kal SpccilicilllOn. Section : S\\ itchgear-I ST C/F'UCIISP[T/:' WGRJRI J. JAN 2017

-120

<;ingle pho," Lkctromagnctic or Capacitor VT

3

I 2 contllluoliS

I ) - 10 scwnd,

:': 10 minute, (For metermg

corc)

4400/8800' (+ 1 0% I - 5%)

Cnre-I Cure-2 Core-J

OO/lLll 400/0.11 400/0.11

'" ") -.--,-~13 '3 ~J

Protec- Protec - 'v1cter-tion tion mg

0.5&31' O.5&JP 0.2

50 50 ~O

Page 16 II [34

TABLE - IC

REQUIREMENTS OF 245 KV VOLTAGE TRANSFORMER

S.No. PARTICULAR

1. Rated primary voltage (kV rms)

2. Type

3. No. of secondaries

4. Rated voltage factor


6. Capacitance (pf) (for CVT)

7. Core details

a) Voltage Ratio

b) Application

c) Accuracy

d) Min. Output burden (VA)

* Capacitance value shall be as specified in BPS.

Technical Specitication, Section: Switchgear-lNST C/ENGG/SPEC/SWGRlR II, JAN 20 17

245

Single phase Electromagnetic or Capacitor VT

3 cores

1.2 continuous

l.5 - 30 seconds

± 10 minutes (For metering core)

4400/8800' (+ 1 0% I - 5%)

Core-l Core-2 Core-3

220/0.1 I 220/0.11 220/0.11 ~l3 T3F ~l3 Protec- Protec- Meter-tion tion 109

3P 3P 0.2

50 50 50

Pagel7of34

TABU; - II)

RICQUlREME:\'TS OF 145](v VOLTAGF TRA 'SFORMER

S"Jo PARTie ULAR

Rat~d primllJ) voltage I k V nns)

~ l Yre

0 .l. No. 01 secondaries

4. Rated voltage ractor

5 Phase angle error

6. apacllancc (pI) I ror C V n 7 Care detail>

a) Voltage Ratio

b) Appilcalion

c) Accuracy

d) MIO Output burden (VA)

I cehn;ca l Specillcatiol1, ~cclion S".itchgcar-INST CIEI'>GG/SPfliS ViG RiR II . JAN 2017

14)

~mgle phase 1- l e~trot11ag'l~ tic

or Capacimr V'I

i corc~

1.2 cO llt inlloll ,

1.5 - 30 seconds

10 mmUles I For metering core)

8800 (+ 10% ' -5·0)

Corc-I Core-2 Curc-3

JJ:?.IQ,ll 132JQ,ll m /Q,ll ~3 v) , I) .,/) 'oJ'3 'IJL3

Protec - PrOlec - Meler-Hon tion ing

3P JP 0 .2

50 50 50

Page I H or ,4

TABLE - IE

REQUIREMENTS OF 72.5 KV VOLTAGE TRANSFORMER

S.No. PARTICULAR

1. Rated primary voltage (kV nTIs)

2. Type

3. No. of secondaries

4. Rated Voltage Factor


6. Core details

a) Voltage ratio

b) Application

c) Accuracy

d) Output Burden (V A) (minimum)

Technical Specification, Section: SwiLchgear-INST CIENGG/SPEC/SWGRJR II , JAN 20 17

72.5

Single phase Eleclro-mag11etic or Capacitive VT

2 cores

1.2 continuous 1.5 - 30 seconds

+ 20 minutes (For metering core)

Core-l Core-2

For 66 kV feeder application 66/,J] 10.II /Y3 66h13/0 . IIIY3

For tertiary loading (oflCT) application 33/Y3 10.IIIY3 33/Y3/0 IIIY3

Protection Metering

3P 0.5

10 10

Page 19 of34

rABU-IIA

REQL lRE~lE" rs FOR HUn k.'V CURRENT TRA[l.SFOJ{l\lER

'\0 uJ ton: \pplil.:dt ion Cum .... n1 Outpul .\ccurOlc~

COn:":'" "0 R .. uio Burden ~ las> , \ \)

6 III ~ OII T 1000 PX CillO; '()(ICl'

;CMII

2. (IlJ~ DIH. 1DOO P\ \ I /\I~ 20110.'

5110,1

3. ">11 n RI~(, 3000, 21) O.2S 2000 20 1).2S 500'1 20 0.2S

\,11 11 RI'\(, JOoo: ~n 1).2~

20001 21) 1).2~

5011: I ]1) V.2~

5. I R/\ 'lSI 1000, P\ IlIH. J 1M 200(}, I' ROlN. ,,()O !!

6 IINI .lOOO· P\ PRO 1l\,l .BB 200()· PROI" 500!1

1\(llt: I- ProCcl.:liul1 cores s hall be oraccurat~ chl.~'" PX Q, llcr n::r (d8(.9. 2. '\Itltrlnl! Core ~hall be oraccur:ac~ cla.s.s O.2~ as prr JI'.C: (li Stif)

Technical Speci ficat ion. Section SWItchgear-IN . T CI[NGGISPECIS WGRlR II. JAl\ 20 17

\·Iin, Knee \Illx. l"T \1.:1:\. C'1. ~ . ..:c. \\dg. 1;:.\.1.:11 V(lltu~~ Rt."~j~l.mt:C! CUITt'nl ( Ii, I 1m 0 ) JI "J.. (in

m!\_I __ .

JO()O, IS/IO/::!.' :Wtlll ~OOo, ]I!OOII 5I~) rAP.

104Hl 21HI"d 12Uun :;00,'1 ',IP

3C~10, 15111'25 :!(} lIn

2(~1(): 1000, I '00 '''P

111tm :!1J(H)11 110 lHl

,OWl "'p

3()11\J, \5,,]025 :W III:

20tHli JUliO, I 500 1/\1"

JO on 21MIU' I 1200n SCHill lur

J(~IOI 15 ·111'2 :I 20 on 2(lOll ](HIO I 5(MI Tup.30

On 2000" Tap,121J on ;(MI'-I '.!'I'_-

Page 20 or 34

TABLE-lIB

REQUIREMENTS FOR 420 KV CURRENT TRANSFORMER

No . Core Application Ratio Output Accuracy Min. Ma\.CT Max. Exci!. of No. Burden Class Knee Pt . Sec. wdg. Current at cores Voltage Resis(ance Vk (in mA)

(Vk) (in O)

6 BUS DIFF. 30001 PX 30001 15110/2.5 20 on CHECK 20001 20001 300011

500/1 500 TA P; 30 on 200011 ; 120 on 500/1 tap

2. BUS DIFF. 30001 PX 30001 1511 012.5 20 on MAIN 20001 20001 3000 /1

50011 500 TAP; 30 on 200011 ; 120 on 50011 lap

0 METERlNG 30001 20 0.2S J. 20001 20 0.2S 50011 20 0.2S

4. METERlNG 30001 20 0.2S 20001 20 0.2S 50011 20 0.2S

5. TRANS. 30001 PX 30001 1511 0/2.5 20 on BACK 20001 20001 300011 UP/LINE 500/] 500 TAP; PROTN. 30 On

2000/ 1 ; 120 on 50011 lap

6. TRAN S. DrFF. 30001 PX 30001 1511 012.5 20 on ILINE PROTN. 20001 20001 3000/ 1

50011 500 TAP; 30 on 20001 I; 120 on 500/ 1 ta~

Note: 1. Protection cores shall be of accuracy class PX as per lEe 61869. 2. Metering Core shall be of accuracy class 0.2S as per lEe: 61869

Technical Specification, Section : Switchgear- rNST C/ENGG /SPEC/SWGRJR1 1, JAN 2017 Page21of34

TABLE - IIC REQUIREMDITS FOR 245 KV CURRENT TRMSFORlVIER

'n.nf Curl' Appli- Curr~nt Output .\.('CUrll C) ,\lin . knf:t: Cure!!. ~o_ cation ralio burd .... n dnt;s pl.\<oh

(\ AI "~. (\ kl

) illS nil I" I f>0(~ PX 1600, ( 'I II l'K RO"·I RO()

:' BlS IJII· I I "(lO- PX IhOIJ.f M \Ie. ROlli 80U

- ML I'ERINt; I bOII- :!U illS ., 800!!

4 IRA "S. I bOO· 1':'. 161101 IMeK ~Ot). 1 ROil 11P'1 IN!' PROTN.

5 TRA"\S. IhOO- p" IWOi nil 1 '1 '''1 s uni l K(~)

!'ROIN

Nole: 1. Prutcc.tlon corts IihalJ br ofauurac) r.l8';~ PX ";Ii IH!r lEe 61869 . 2. '1etering Corr shall be ofQ('cu ra('~ cln.!t~ 0.2S as per-lEe: 61 869

roehme.' ~pecificalton , Sectioll ' !>witchgear-fNST C/EJ\GGISI' I::CI!> W(i RIR I j J;\'\ 2017

\1 ••. (" r M ~u.. Euit-sec.\\dg. atian cur-re~i.st ~ rtnt rH \'k lH1U(ohIllS) (in iliA ) ~,~ .!S on

l hOI!' I l ap; 511 on HI)O I I .p

X/~ ! 5 nn 16011,1

III~ :

SO nn ~IIIJ I rop

8' 1 2.5 ~m I ~(l111 I.p: 5U nn WO, I l ap

8/4 :!S j1J1

I hOOd Tdp. St) on XOO I rap

Pag~ 12 o r 1~

TABLE - lID

REQUiREMENTS FOR 145 KV CURRENT TRANSFORMER

No.of Core Appli- Currenf Output Accuracy Min. knee Carts No. cation ratio burden class pi. volt-

(VA) age Vk

5 BUS D1FF 800- PX 8001 CHECK 40011 400

2 BUS DI!'F 800- PX 8001 MAIN 40011 400

3 METERING 800- 20 0.2S 400/1

4 TRAN S. 800- PX 8001 BAC K 400/1 400 UPILINE PROTN.

5 TRANS. 800- PX 8001 DIFFILINE 400/ 1 400 PROTN

Note: I. Protection cores shall be of accuf"acy class PX as per lEe 61869. 2. Metering Core shall be of ilCcuracy class 0.2S as per lEe: 61869

Technical Speci fication , Section: Switchgear-fNST ClENGG/S PEC/S WGRlR ll, JAN 2017

Max. CT Max. Excit-sec.wdg. anon CUr--resist- rent at VI( ance(ohms) (in rnA) 8/4 25 on

80011 Tap; 50 on 40011 Tap

8/4 25 On 80011 Tap; 50 on 40011

. Tap

8/4 25 on 80011 Tap; 50 on 400/ 1 Tap

8/4 25 on 80011 Tap; 50 on 40011 Tap

Page 23 of34

TABLE -liE

REQlJlREMENTS fOR 1-45 kV Cn~RENT TRA;'IISFOR\1F.R

1\ D.of Cor~ \ppli ('urrent Output \ccurnc) "in. knn Cart'S '10 , c;llion ratio hurt:ien dl~~ Ilt.\<oll-

(~ \1 ,,~. "k

, II I ~ ])Irr' hUll· p.\ bUll, Cl II .C,", 11111. I 1()U

, Tll .. Dil l hOIl· PX bOO M i\ I ~ lUll I 'lOU

3 MFlTRI~(i 3011. :W 1)2~

1511 I

.1 T R\ 'J S bOO· PX 600 Bi\C;; WOII JOO lIP!t.l :>'1 PROl'

5 TK \'S. 600· rx 600" DII·I·!\ INE JOO· I 30U PRO r,

'ote: 1. Protection consslHtll be of ace un C) class P:\ as per 1£( 61869. 2, \!lC'tt'ring Con~: shelll be OfilCCUrac) clan O.2~ 3.5 per lEe: 61869

Technical ~pcc i fic"llon . Sect ion: ~\\ Ilchgear-INSI CIENGGISPECISWGRlR I I. JAt-; 20 17

~'I;l:\ . C I' i\1u. l:\cit-"it'r. "dJ,:. alion clIr-re~ill'- rene :,jt \ 'k lHlCt(ohm:or.) ( In rnA) ( ""I ~: 1 30l1O

I.(~J I " ape 6t] on 3(HI' , ['p

6iJ ~n lln

uIW)!1 lap; "n 3tH)' I 1.1'

6/3 .10 on 600 .. ' Tap; 60 nn J IMJ.'I lop

61.1 JO an 6oo!l I.p; 60 on .1IH). 1

'1,1'

Page 2·1 0 f 34

TABLE- ITF

REQUlREMENTS FOR 72.S kV CURRENT TRANSFORMER (FOR TERTIARY LOADING OF lCT)

No. Core Application Current Output of No . Ratio burden Cores (VA) 2 OIC& ElF 50/1 10

2 Metering 50/1 10

Technical Specification, Section: Switchgear-lNST C/ENGG/SPEC/S WGRlR II , .IAN 2017

Accuracy class &ALF

5PIO

0.5

Page 25 of 34

Anncxul'c-1

MAJOR TF.ClINKAL PARAMETERS FOR CT

" . ,~n . Descr"il}tion

I Rmed voltage, Un (kVrms)

76SkV ,

" )"Ote",

800

50 2 }{dled rr"'iueney /I III .' N~ or Pole, - t----,-I

5

r-::--:- b' DC"lgn am lenl (empe r-IHure (' C)

. Raled Primal') Currell' (A)

6 Rated eXlended

7 priln3J) t:urn.'nl

Rated shon time IhcrmJI withstond current

Ratc-d d) namlc CUJTCnt

50

3000

I :W11O

IIlluV,Ok \ (a, I i.lpp l l~:ilhle . hll I

~l!fII, \ ' ~)~ l rll1

420

I()

I

,0 3000

1 ~OOO

IOkNjU'A I~3kA (,L'" 4lprlk-uhlt ~ h.r

I "'I,!, \c~)kAr.ll25k,\p;

157 SIv\r 1.1'

2l0k\ l32 k\ Ii' ~telll )) "Ilell1

---245 145

<Ii .,0 I I

50 50

1600 800 ()OO

120"0 1'0' 0 120',, '1 "0 ", -

1Il1v\51l!..A la, J I " .. \ Ii 'r I.lppliuhlt! I t'llf I

h.:t.: ,'" '(JOkAp,115kAr RUkAp

-------;;6k\ 1 S\-)fcm (for

T crtiilr) loadin.) n,

.10 I

SO

50

- .. J ~ou'l.I

-"'510.:\ (i.r

.l~l·

-b 1)..J\p

Temperature nsc ovn dcsi~n ambient

I nUkApil251v\p ,." "pplic.hlc) fa..., J.f'lplil.:"cthlc )

~~I,ic.l:I<'.!.'_--,-__ ------1.-------'------1

h;:mperatur~ _0__--,--'------------III Rated In-$-u"'la-',,'-'o-n I .. els

f---+:c-:-,---3) Full wave impulse withstand voltage (1 .2'50 microsecond)

As por IFe

i) bet\\eelllin< .t2100 1 ±1~2' --TI--t--:-:10"5:-:0C--,--- -:-:-::---.----= Ic.nnmah. and

r--,--~~g~'r-ol-ln7d(,Vpe"k) ~c-~~~~c-_o__----~~-,----~--c-~---------L------b) Sw,tchmg impulse wiih~nd voltage (250.:2500 micro,c'Cond) (dry and weI)

I I ; 650 :! 3~j

-I\A- -~.[A -

-

I) bet\\ccn line ,. 1550 I - 1050 1 I -NA-lermmols and grouml (kYp"ak)

---4 --~~------~------~----~ c) One minute POWCI rrcqUl!'IU.) dr) \\'ilhsll.md voliage (ctr) and \ .. eO

~-,i ,.I -4-,h,-c_,,,een line 975 __ ~ ___ 6_1_(J __ --' ___ 460~ lenninul, and ground (dry only) (dry only) (kVrms)

- " 1 ()

:75

l u nl! mmute po\' er

l"requency wilhstaml \ nhsgc.! hctwccn "iccnndary tenninab & "arlh Ik Vrms)

I echlli~al SpcctricatlOn. "'eclion: ..,\\ itc hgear- INS T Ur;r\GGISPECISWGRIRI LJJ\l'\ 2017

5kV

Page 2601'.34

140

S. No. Description 765kV 400kV 220kV 132 kV 66 kV system system system system System (fo,-

Tertiary loadin!!l

II Max. radio 2500 at 1000 at 1000 at 500 at -NA-interference voltage 508 kV rms 266kV rms 156kV rms 92kV rms for frequency betweenO.5 MHz and 2 MHz at (microvolts)

12 Minimum Corona 508 320 -NA- -NA- -NA-extinction voltage (kVnns)

13 Seismic acceleration O.3g O.3g 0.3g O.3g -NA-(Horizontal)

14 Partial Discharge As per TEC As per lEe As per IEC As per lEe As per lEe IS Number of tenninals All tenninals of control circuits are to be wired up to marshaling box

plus 20% ~are terminals evenly distributed on all TBs. 16 Minimum Creepage 20000 l0500 6125 3625 distance (mm) • l7 System neutral Effectively Earthed

earthing

'The values indicated are for specific creepage of 25mmJk:V. In case of specific creepage of 31mm/kV is specified, the Minimum Creepage distance values shall be considered proportiona tel y.

For other parameters, refer respective Table for the applicable voltage class of CTs.

Technical Specification, Section : Switchgear-INST CIENGG/SPEC/SWGRJRII , JAN 2017 Page 27 of34

1813

Annexure-II

MAJOR TECIf:'<ICAL PARAMETERS FOR CVT/I\,T

, S, l'\'o, Destript'ion 76~kV 4(Hlk\ Wlk\, 132 k\

:IJ,,)' slt'm ~)Sltnl ) Y<.i U IIl ~.'I \1I:'m

I I Type (CVT'lVT) CVT CVTII\r r CVTIIVT CVT/l V r 2 R.leJ vol lag", til" 800 ~ 20 2,45 145

( k Vm,,) ; Raled freq uency (Hl) 50 50 50 ~O

4 'J,) of Poles I I 1 1 ---:- 'r>' b'

- - ~ f-- -, eSlgn am len\ 50 50 50 50 temperatu re ('C)

"(, -SY"itt.!11l filu lt level 40k,\ 5f)1v\ lilS 40k./l.i50kA i 631v\ 40kA'SOkA I.s (kA) upplicable. lor I I"" "pplic:lblc) fllr apphcJ.btd for 1

J l 5}"Aror I~,

~c I S<!l 5~L

_'-:c

6 Standard reference I 96% to 102% ror proteclion and ra nge of frequenc ic, 99% to I U I % lor mca.uremen! fo r \\ hich lhe !tccuraClC, are val id

7 HIgh frequency With in 80',. to 150", of rated capacitance capacitance lor entire carrier Irequenc)

~ range (for CVT ~n l )) , Cqui\'aJent serie;.. rl.."Sis taucc o,"'cr ent ire L"" than lU Ohm, carrier frequency range (lor eYTI

------q - -- -Stray capaci lance and slra) conduclance o f' I IF le" n inaJ ">cr As per I[C-{'0358 enUre carrier frequency rang~ ( ~or

CYT)

10 r~nlperalurc..: n"'(: (), L:r dc,ign ambienl A< per Irc tem peralUfl.'

II Rated Insulalion levels ~ Full wave impl1lse \\ itll>,and \ o itag< \1:>.;50 micro,ccollu )

hCI \\ Cen tinC' I I

il ~2100 "1425 , IOSO 1.650 term inals and ground (~VpeaJ..1

-

h) Swilching impulse "ilhstand ,olt.lgc t1:102,00 microsecond) Idf) ,tnd " "II -

r echnical Spec ifica llon, Sccl'(1n ; ~\\ Itchgear- IN S 'I

CIF'\IG t dSPECiS \VGRlR I I , Ji\l\' 20 17 Page ~8 of,4

66.\ Sutt'1IJ {for

U:'rliAr\

lo.dinel C'VT/lVl

7' -- , 50-

I

-50

~5"--' Il'lr h~ .. ·

-I

-

-

-

-- --325

s. No. Description 765kY 400kY 220kY IJ2 kY 66 kY system system system system System (for

tertiary loading)

i) between line ± 1550 ± 1050 -NA- -NA- -NA-terminals and ground (kVpeak)

c) One minute power frequency dry wi thstand voltage (dry and wet) i) between line 975 630 460 275 140

terminals and ground (dry only) (dry only) (kVrms)

d) One minute power frequency wi thstand voltage between secondary terminals & eanh i) between LV (H F) 10kV rms for exposed terminals and 4kVrms fo r terminals enclosed in a weather

terminal and earth proof box tenn inal (kVrms)

i i) For secondary 3kVrms winding

II Max. rad io 2500 at 1000 at 1000 at 500 at -NA-interference voltage 508 kV rms 266kV rms 156kV rms 92kV rms for frequency betweenO.5 MHz and 2 MH z at (microvolts)

12 Minimum Corona 508 320 -NA- -NA- -NA-extinction voltage (kV rms)

13 Seismic acceleration 0.3g 0.3g 0.3g O.3g -NA-(Horizonlal)

14 Partial Discharge As per IEC As per IEC As per IEC As per IEC As per IEC 15 Number of terminals All tenninals of control circuits are to be wired up to ma rsha ling box

plus 20% spare terminals evenly dist ribu ted o n a ll TBs. 16 Rated Total Thermal 300 VA (IOOVNwinding)

Burden (VA) 17 Sys tem neutral Effectively Earthed eanhing

Minimum Creepage 20000 10500 I 6125 3625 distance (mm) •

'The values indicated are for specific creepage of 25mm/kV. In case of spec ific creepage of 3lmmlkV is spec ified, the Minimum Creepage distance values shall be cons ide red proportionately.

For other param eters, refer respective Table fo r the app licable voltage class of CVTs/ IVTs.

Technica l Specification, Section: Switchgear-INST C/ENGG/S PEC/SWG RJR II , JAN 2017 Page 29 of 34

20VA

181 3

--- -, ~,

Annexure-III: Wiring Diagram "reT

-----

~ ~ ....,.a:.- -~~~ 11~--~~~--~~;-~~~~~~~P2

J '@

I cchnical Spccific:tl ion. ~c~lion: S" itchgear-rNST ClI;-';(i( ;/SP[C/<:;WGR/RII. JAN 2017

•

-t ~ r-..I W. (iu __ .........ur 'u:...L~'*"""" c..J _ ,.~ -..:r r- :;:I "Ilt" 1D -- ... ,

P01rER GRID CORPORATION or INDLI UllfTIll ,. ____ 1

...... STANDARD

Page 10 of 1-1

•

Annexure-III: Wiring Diagram of CT

.CJ: tORE

nl-l Cl' CORI-f

Tll-2 ex COBE- 3

TI!-9

[!:::J.,.... ~ ::t ' =t .. -• A • B

C;:::J--ow-,

~::t •

.. • • • • •

~ :t • -I ...... -.ocq 1ItU. • ~e.;

... f'I"l lDl ~ OMII_

1. ..... 1 ........ ~ [1W I~ r \all -.u.~~

L I-I. 1i-11 %~-n PIlI !dO ar .. 1 ..... 1I-1 ... 2'l ""J01'Qll1IrI'O~ , .. 1- l. 11-11. l l- lt ~ IWXI JCIX11 10. .... I-Yo .... " flII MIO IClD'J/I.

.l. ....... »~~5IWltI!L.

---~-... nc. tnoUri1rN1S~_~ ;0 0WCf. NM:l IIClMCI ~

• • • • • •

-• • o

"1 (X!U-t Tn-I

•

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J, HS-HEATER SWJTCH, OS-DOOR SWiTCH, SS-SOCKEl SWITCH lH- TIICR\.!OSTAl

Technical Specification, Section: Switchgear-lNST C/ENGG/S PEC/S WGR/R II, JAN 2017

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" ReplotcedlRep3 ir'"edlRrfurbi.sbrd Equipment (or part of equipment ) shall have 1 yean; warram'Y \"ithoul prej udice CO contTactual ~arnnt) pedod.

1 cchnicol Specification, 51;1;\ion' S" itchgcar-INST Clr,NClG/SPFCI<;WG R/R I I. H"i 20 17 Page 3..\ of 34

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Bharat Heavy Electricals Limited Project: Substation package-SS19: Extension of 765kV Sofapur, 765kV Aurangabad, 765kV Wardha, 400kV Khandwa, 400kV Rajgarh, 400kV Champa, 400j220kV Itarsi & 400j220kV Jabalpur substations Section -3 of Technical Specification Doc No, TB-408-316-S03, Rev.O

SECTION-3

PROJECT DETAILS & GENERAL SPECIFICATION

SITE INFORMATION SI Particular Details

a) Owner POWERGRID

b) Customer POWERGRID c) Project Titl e Substation package·SS19: Extension of 765kV

Sola pur, 765kV Aurangabad, 765kV Wardha, 400kV Khandwa, 400kV Rajgarh, 400kV Champa, 400J220kV Itarsi & 400J220kV Jabalpur sUbstations. Under Western Region System Strenqtheninq Scheme (WRSS·20)

d) Location

SL Name of Substation Name of State Nearest Rail/Road Head 1 Solo pur Maharashtra Solapur

2 Aurangabad Maharashtra Aurangabad -3 Wardha Maharashtra Wardha 4 Khandwa M.P. Khandwa S Rajgarh M.P Rajgarh 6 Champa Chhattisgarh Champa 7 Jabalpur M.P. Jabalpur 8 Itarsi M.P. Itarsi

e) Transport Facilit ies As above

SITE CONDITIONS

a) Max. ambient air 50°C temp.

b) Min. ambient air O°C temp.

c) Max. design 50°C ambient emp.

d) Design reference 50°C temp.

e) Average Humidity Max. 100% f) Special No

corrosion conditions

Page 1 of 71

Bharat Heavy Electricals Limited Project : Subseatlon package·SS19. Exeenslon of 765kV Solapur, 765kV Aurangabad, 765kV Wardha, 400kV Khdndwa, 400kV Rajgarh, 400kV Champa, 400/220k. V !tarsi & 400/220kV Jabalpur subseations ,section -3 of Technical Specification Doc No. TB-408-316-S03, Rev.O_

I g) Solar Radiation 1 2kW/sqmtr h) Atmospheric UV High

radlallon -

II Ailitude above sea Less than 1 ODOmeter level --- - - - Normal Pollutoon lev~~ - - --

J) Pollution Severity kJ Seismic Zone As per the seismiC zone denned in the

I relevanl BIS IIEC-62271·300 bul nOlless than 0 .39 horrlzontal

WIND DATA - -- --Wind velOCIty As per IS Average No of As per tS thunderstorm days per annum

-Main Electrical Parameters :

--- -Fault Lellels:

SL Name of Substation Fault lellel 1 765kV Sola~ur 40kA for 1 sec 2 765kV Aurangabad 40kA for 1 sec 3 765kV Wardha 40kA for 1 sec 4 400kV Khandwa 40kA for 1 sec -

1-- 5 ~.9kV R~lli'rh 40kA for 1 sec 6 400kV Champa 50kA for 1 sec -7 400/220kV Jabalpur_ 40kA for 1 sec -a 400/220kV lIarsi 40kA for 1 sec -

25mm/kV for all equlpments i.e . BPI I Minimum Bushing, CB, Isolator, CT, CVT, LA, NCT Creepage Distance etc.

31 mm/kV. For stnnq insulators

ENCLOSED - " SECTION-GTR (GENERAL TECHNICAL REQUIREMENn REV.1 4" FOR DETAILS OF GENERAL TECHNICAL SPECIFICATION.

PLEASE READ TERMINOLOGY AS FOLLOWS -1. Read "GTR" as "Section-3 of technical s pecification" 2. Read "Powergrid" as "BHEUPowergrid". 3. Read "Employer" as "Powergrid". 4. Read "Contractor" as bidder

Page 2 of 71

CLAUSE NO.

1.0 2.0 3. 0 4.0 5.0 6.0 7.0 8.0 9.0

10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0

19.0 20,0 21.0 22.0 23.0 u.G

Annexure~A

Annexure-B Annexure-C An""" ... e-fl Annexure-E AnHextll"e F

Annexure·G Al"Il"Ie~tll e II Annexure-!·

continued ..... Section -3 of Technical Specification Doc No. TB-40B-316-S03, Rev.O

SECTlON- GENERAL TECHNICAL REOI!JRMENT (GTRl

ITEM PAGE NO.

Foreword 1 Ge neral Requirement 1 Standards 1 Services to be performed by the Equipment being furnished 2 Engjneerim~: Data and Drawings 5 Material/Workmansh i p 7 Design Improvements/Coordination 9 Quality Assurance Programme 9 Type Testing. Inspection & Inspection Certificate 15 Tests 16 Packaging & Protection 17 Finishing of Metal Surfaces 17 Handling, Storing & Installation 19 Tools 20 Auxiliary Supply 21 Support Structure 2 1 Clamps and Connectors including Terminal Connectors 22 Control Cabinets, Junction Boxes, Terminal Boxes & 23 Marshalling Boxes for Outdoor Equipment Disposal of packing material & waste from construction site 24 Terminal Blocks and Wiring 24 Lamps and Sockets 25 Bushings, Hollow Column Insulators, Support Insulators 26 Motors 26 --

meffi "tel W Corona and Radio Interference Voltage (RIV) Test 2 sheets Seismic Withstand Test Procedure 1 sheet List of General Standards and Codes 23 sheets Ii ,s-/()I 3eeo nd ad, .-nee l-sheets Comprehensive List of drawings 9 shee ts A3se39mel"lt report fl"Olfl t1ain COfttl aetl}l" fel proposed 9tJb Hheet """oe,'s hisl"Of.efteloottres MQP & Inspection Level Requirement 3 sheets

:-j"e-tt-ef-KfV ee stir. reehffrMn'3"uia tOri 'Mheets £tattdeffi-B-fflWtm!-fe fOfflt -H-heet

Annexure- Cl Corona and Radio Interference Voltage (RIV) Test - 2 SHEET

PAGE 3

~ECTION·{jENERAI, TEet! NICA I.l!fOtllI!EMt'Nn «j l l!)

1,0 FOREWORD

TIll' provisions undel this section are intended to supplement requirements lor the materials, eqLlipm(,llts and services ('ovl"red under other sections of r-cndf."r dOCllmrnt, .:md are not exclusive.

l.O GENERAL REQUIREMENT

2, I The rontractor shall lurnilh catalogues, engoneering LlatJ.lechnlcal lnlomldllon, d."lgn document,. dl7lwings ele., fully in ronfonnity with the technical specification during detailed engme.rlng.

2.'2 It is rt~(ogI1lsecl Lhdl the Contr'i.1Llor may have swmbrdlsed on the use of certall1 t:ompunents. maleriaLs, processc!-. or proc:edures diflerent from those speCified herein. Aln.'mjlte proposals offermg similar ~qu l pment bas~d un the manufacturer's s l<JlldanJ pramce will als" b~ consid.I'eo proVided such proposals meet ti,. >peLined u.SI)tns Slilndard and performance requirements and arr accept.lblt! to El1lploy~r .

2.3 Wherever LJ maLerial or iJrtkle is speofied or defined by the na rlH" of " p<1rtil.:olilr hr.:md, Manllr.a(tlll"~r or Ve rll.ior, lhe specilh: n3me mentJoned shall he unclerstoou as eSlablishing type. lunction and quality and not as limiting compelilioll .

L.4 Equipment lurnished shall be complete in every respect with all mountings, fittings, fixtlrres ;md stanllJrtl a(cessories rrormally provtdE:'LI wI lh such equipment and/or nceded for t,'rccrion, completion ~nd safe opera lion 01 the eqU ipment ils required by ,pphcable CQrle> though they l11"y not havo been speCIfically detailed In tire Technlc'al Spedlkiltmm; unJess mduded In the lISl of exclusions. Materials and compollents which are minor m nJture and lncldental to the requirement butno{ sp('cifkally stal~d 111 the sp~dnuJtion anl..l bid p rice schedule, which Jre necessary forcommlsslonmg and satISfactory opel11tloll 01 the switchy"rdl substallon unless specillC<llly excluded shall be deemed to he included in the scope of the spedhcaUon ,nd sh,lI be supphed without any t! Lra cost All slmJiar slandard components/parts of similar stanl..lard t'qulpment provldeu, Shil1l be inter-ch.mgeahle With one .. mother.

2.5 H''''''--..et.",....,n,.11 81.6 be re,poII,ibhH"r--t:M-over.1l ro."rdTnHUOn w,th ,nternfll 1."tern,,1 .ge" .. es:-5ttpI' .... r-.,F£"'I>lfIY.N-mII'l~qttipmenl>, l'roject m8ndgemenl, trltining 61 Empl .. yeM nHlnjJf>Wff;-""'''tf>g;-t",Irut''tng'''ltndlift~'o'ifl~-to IfftttI-d""flftatioH fot ... c(""", lul erecLion. 1""ltnl:"'ln"""""~b'Iat"""

""""'lehyttM.

t.6 Th" b idd.,.. shallll.,.,.."..,.,nsilJl.,.fer •• f.e!y 64mm""'1t.,<H>qttipmenr tlurlng In,, worklng. It-wilt-bc the "",ponSlbliity "r th.....c"It""fitlr-t~tn.re "n<h>bfsin-€Ie<'t.-iffl 1",,,'.161'" el •• """-~_ioning.-Afty-eddtt">A.I '" m" ", .. dille.MIl dtte-f6 oi»et'Y&fI .. n !If .uell _1161 j 8Utht>l'ifl""""l"tll b.,. pft"'i~ by th~f.<>nt"lt't<tr aHffi ""-~-t<Hhe-F.'"J'Ieye"

3,0 STANDARDS

31 The works covered by rhe speclflcallon sha ll be deSlRned. engineered. manufacrured. bUilt. tested and rommissioned in ,accordance with the Acts, Rule.... Laws and Regulations of India.

3.2 The eqUipme nt to he furmo;;hrn under this spedfiGllion Shdll c.:onfunn tu lillest issue wltll all aillendnlents (as on the ungTn"lIy schedulrd rial e of bid upenlng) 01 ,laml". u ",pf'Clfh:d Irnd~ 1 Annexure-C 01 lillS sectron, unless s-pcdfiC<1Uy m('ntionl"'Cl in the !:oipecifiGitlon.

3.3 The Bidder shill] note Wilt slandard .. nl"ntionec.l in tht!' ~pedflcatlon Jre nul mutually exclusive 01 Cumplele in Ull::~rn~elves. but mtende-d U1 cnmplinwnt each other.

1 cdtlm:JI Sp~L"JfiL:.lllim (iTR l J·\(;t.;srl:f. til (R\!\ ~I\ 14 Lln 'II I' ] PAGE 4

SECTION-GENERAL TECHNICAL REOUIREMENTS (GTRJ

3.4 The Contractor shall also note that list of standards presented in this specification is not complete. Whenever necessary the list of standards shall be considered in conjunction with specific IS/lEe.

3.5 When the specific requirements stipulated in the specifications exceed or differ than those required by the applicable standards, the stipul.tion of the specification shall take precedence.

3.6 Other internationally accepted standards which ensure equivalent or better performance than that specified in the standards specified under Anne)"'1lre-Cj individual sections for variolls equipments shall also, be accepted, however the salient pOints of difference shall he clearly brought out during detailed engineering along with English language version of such standard. The equipment conforming to standards other than specified under Annexure-CJindividual sections for various equipments shall be subject to Employer's approval.

4.0 SERVICES TO BE PERFORMED BY THE EQUIPMENT BEING FURNISHED

4.1 The BOOkV and 420kV system is being designed to limit the switching surge over voltage of 1.9 p.u. and 2.5 p.u., respectively and the power frequency over voltage of 1.4 p.u. and 1.5 p.u., respectively. In case of the 420kV system, the initial value of the temporary overvoltages could be 2.0 p.u. for 1-2 cycles. The equipment furnished under this specification shall perform all its functions and operate satisfactorily without showing undue strain, restrike etc under such over voltage conditions.

4.2 All equipments shall also perform satisfactorily under variou s other electrical, electromechanical and meteorological conditions of the site of installation.

4.3 All eqUipment shall be able to withstand all external and internal mechanical, thermal and electromechanical forces due to various factors like wind load, temperature variation. ice & snow, (wherever applicable) short circuit etc for the equipment.

4.4 The bidder shall design terminal connectors of the equipment taking into account various forces that are required to withstand.

4.5 The eqUipment shall also comply to the following:

a) To facilitate erection of equipment, all items to be assembled at site shall be "match marked".

b) All piping. if any between equipment control cabinet/operating mechanism to marshalling box of the eqUipment, shall bear proper identification to facilitate the connection at site.

4.6 System Parameter

76SkY, 400kY & 220kY System

SL Description of 76SkV No parameters System

L System operatin~ volta~e 765kV 2. Maximum operating BOOkV

voltage of the system (rms)

3. Rated frequency 50HZ 4. No.ofohase 3 5. Rated Insulation levels

T cchnical SpeCification: GTR C/ENGG 'SP~(,IGl R (Rev. No :-14, Ja112017 ) PAGE 5

400kV 220kV System System

400kV 220kV 420kV 245kV

50Hz SOH'Z. 3 3

Pasel of)4

Se .. bon 3

SEITION-GENEML TECHNICAL REOIJIREMENTS (GI Rl

SL Description of 765kV 4 00kV 2201,V No parameters System System System

-I) Full wave Impulse 2l 00kVr 15SUkVp 1050 withs tand yolldge kVp [I.USO micro.ee] .1

ISSOkVp - I i, ) Switching Impulse I 10S0kVr I . wlUlsland yolt<lge (250/2500 micro sec.] .Iry and wet • . - -S30kV-· ii i1 I One rn inu[~ power 610 kV I . fre quency dry w,ths tand yoltage (ems] ----iv) Ont:' minute power - 4611kV Freq uency dry and wet wll hst<1nd vott;l~e (nus) - - 320kV 6. CoronJ t!'xUntlion S08 kV vol tage

7. Max. radJo Inle rf~ re'n c:e 2500 flV 1000 IN 1000 ~V vol tage for Irequellcy at SOB kV rms at 26t\kV rms at l%kV n ns hetwopn O.s Mllz a nd 2

ra. MHz Min imum creepage 20000 mm 10SOO mm 612Smm dl stanc:e for EqUipment [24800 mm lor (13 020 mm (759S mOl for oLher lh.rJ n Insulrnor coas t;]1 area) tor coa.sLaI coastal are"a) !i lrlng I -::- area] Min ,mll m creepage

I As specilled in Seclloo-Swllchyard Er<~tion

dl.s tance for Insulator SIT ing

9. Mi n. de.ar,.mce5 ,. Phase to phase 7600mm 4000111111 2100 ml1l (ror conductor- (for conductor

cunductor conductor conAgli ration) configurall un)

9400mm (lor 4200mm (for rod·cond uctor rod -conducro r tonflguration] . con fi f!uration )

ii. PI\a.se ro earth 4900mm 3500 mm 2100 mm (f·or cond uctor

structure)

6400ml11 (fo r

-- rod- structu rf' ) i if J S~cuona l clearallces 10300 mm 6500 mm 5000 mOl 10. Rated short Circu it 40kAj50kJ.\ (as 40kA/5J)klIl 401<A/ ! current for 1 sec applicable) 6=! 1</\ SOkAeas

duration (as oppli c.bl~)

- applicabl'O] 11 System nt!utral earthing Eff.clivply EfleCtlvcly Effectively

earthed earthed e.rthed

Tt:d t nll.:~J ~1X"t.: l ii c.luun «,1 R f F '\tli(,":Pl t t.rR ( I~ .:\ ' l\. [ -'~ . 1I1 2 IJ I"') PAGE 6

Section 3

SECTION-GENERAL TECHNICAL REOUIREMENTS (GTRl

132kV 66kV 33kV & 11 kV S)!stem ,

SL Description of 132 kV 66kV 33 kV llkV No parameters System System System System

l. System, ooerating voltage 132kV 66kV 33kV llkV 2. Maximum operating 145kV 72.5kV 36kV 12kV

voltage of the system(rms]

3. Rated freq uency 50Hz 50Hz 50Hz 50Hz 4. No. of phase 3 3 3 3 5. Rated Insulation levels i) Full wave impulse 650 325 170 75

withstand volt<lge kVp kVp kVp kVp (1.2150 microsec.)

ii] One minute power 275kV 140kV 70kV 28kV frequency dry and wet withst<lnd voltage (rms)

6. Max. radio interference 500 ~V at - - -voltage for frequency 92kV rms between 0.5 M Hz and 2 MHz

7. Minimum creepage 362 5 mm 1813 mm 90 0 mm 300 mm distance (4495mm (2248mm (1116mm (372mm

for for for coastal for coastal coastal area) coastal area) area) area)

8. Min. clearances i. Phase to phase 1300 mm 750mm 320 mm 280 mm

ii. Phase to earth 1300 mm 630mm 320mm 140mm

iii. Sectional clearances 4000 mm 3000' mm 2800 mm 2800 mm

9. Rated short circuit 40kAj 31.5 kA 25 kA 25 kA current 31.5 kA for 3 sec for 3 sec for 3 sec

(as applicable)

for 1 sec 10. System neutral earthing Effectively Effectively Effechvely Effectively

earthed earthed earthed earthed

Notes:

1. The above parameters are applicable for installations up to an altitude of lOOOm above mean sea level. For altitude exceeding lOOOm, necessary altitude correction factor shall be applicable as per relevant lEe.

2. The insulation and RIV levels of the equipments shall be as per values given in the Technical Specification of respective equipment.

3. Corona and radio interference voltage test and seismic withstand test procedures for equipments shall be in line with the procedure given at Annexure-A and Annexure-B respectively.

T L'chni L"al Spcci liC1l tion: GTR n f-NGGiSPFC"/GTR (Re \·. No :-14, J<1n 20)7) PAGE 7

Page 4 of 34

Sectll.lf. J

SECTION-GENERA!. TECIINICAI, REOUIREMENTS [CiTRI

5.0 ENGINEERING DATA AND DRAWINGS

5.1 The lISt of d...,wlngs/document, wh ich or" 10 be s"hmitted to the Employel is enc lose<l Ln ~nnexure-E In C.il'se any additional drJwing::;/docliments are reqUired , the S~1I11f

~hi.lU also be submitted during l'XCfut lO n 01 Hie contract

S.2 Th,· Conlractor shall submll 4 [Collr) srts 01 drawlngs/ design documents /dala / de(;1i1~d bIll II[ quanlily and 1 (one) ,et oftes! repol 15 for the approval 01 the EmploYN. The contr.1rtor !:lllall 11su submit lh~ 'ioftcopy of thf' ilbov(' dOllullel1t.s in addition La h.lrdwpy.

5.3 Drawings

5.3.1 All drawings ,ubmilled by the (untT.lltor shall be In su iliclenl dern il 10 md,call' th,' type. size, arrangement, matenal dpscnphon. UiH or Materials, weight of erich component". break-up for pack.lng 'lOu shipnwnt. dimensions, il1lernal & the external tonnectlOns, fixing JI r~lngelllen l required and ,lOy other mformJtion speulil.ally requestt'cI In the specifications.

5.3.2 nrawin~s submitted uv the Contractor shall be (Iearly marked with the name of t.he Employer, the unit designation, the speafiCil lions tiU", the specification number iUU)

lil. name 01 the Project. POWERG RID has standardized a large number 01 dr.lwings/doLulntmL'i 01 variOlls makE' including type test reports whICh can be used for all prol€'l lS having simi lar reqll irements and in suth cases 11 0 project specific .pproval (except tor lisl 01 appiocab te d rawi n~' alongwi lh lype te<l rep0rls) is reqUired. HOW(,V(,f, dlsmbudon c..:0ples of standard drawings/documents shall he '\ubmitterl LIS per provlsion of the conlrac.:L All lltles. noting. markings and wri lings on the drawing shall be III Engio sh. All the dimenSIons ,hould be in 51 unots.

5.3.3 The review of these dJtd by lhe Employer will (oVer only genera l conformancr of tlw otbta to thr specificaUon.s imd document."'. interfaces With the equipment proVided under lh~ ~peci Jkatlons, external ( D lm~ttions and of the dimensions which might aff,'!"t ,uoslal:ion layouL Th os revIew by lhe Employer may not mOleate d thorough review of all d if1l~lb:lo n~, quantities <I nd dClaiis of the eqUipment., mfltf'rials. any devu:::es or items Indicated or the ;'l CC Ur.lCY of the informJtitln submiued. ThiS revtf"W .. nd/or approval by the Employ« sh.11I no t be conside red by the Contractor. n, limiting any of his responsibilities Rnd liabilities for mistakes and dfNio-ttio"s from lhe .-eqUlrf'mpnts, spedfied umler these speclfication~ dnd documen15.

~ _s All manufacturing iJnd fabricatjon work in connectIOn with the equipment pnor to the approval 01 the drowmgs shall be Jl the Contraclor's risk. The Conlraclor may IIldke any changes in the deSign which ~]n· necessary to make the eqUipment conform to t.he provisions and intent or the Contri=lct and such changes Will agai n h@ sub,ect tu approval by the Employer. Approv,1 of Contractor's drawing or work hy the Employer Sh311 not rel ieve the contrattur 01 any of hIS responsibilitIes Jnu lIablll! ,es under til{' ConlTacl.

5.6 All engoneerlllg data submitted by the ConlraClor "Iter final proce5s in clu ding reView and approval by the Employer shall fonn palt ot the Co ntract Document and the enti l e work...<.; perfom1ed under tbest! specil1canons shall be perlormed in strict confonnitv, llnless o thenvise expressly leqll~~led by the Employer In Writing,

5.7 Approval Procedure

The followlII~ schedule shall bp followed ~pnl'l ally for "pproval and for Ilnwldl ng flnal doc..:uOlentaticm.

i) Approval/comments/ by Etnployer on Il1Itial submission

TrL"hnlc>11 "1'tl'l..IlicJilVll I iTit t "I,(,:-.rH (, rRIRL:\ ,, ' 1·1 I.ln ~U17)

As p el' 1.2 slhedule

PAGE 8

500100·3


ii) Resubmission (whenever required)

iii) Approval or comments

iv) Furnishing of distribution copies (2 hard copies to each substation and one scanned copy (pdf format)

v) Furnishing of distribution copies of test reports

(a) Type test reports (one scanned softcopy in pdf format to each substanon plus one for corporate centre & one hardcopy per substation)

(b) Routine Test Reports (one copy for each substation)

vi) Furnishing of instruction/ operation manuals (2 copies per substation and one softcopy (pdf format) for corporate centre & per substation)

(vii) As built drawings (two sets of hardcopy per substation & one softcopy (pdf format) for corporate centre & per substation)

NOTE:

Within 3 (three) weeks from date of comments

Within 3 (three) weeks of receipt ofresubmission.

2 weeks from the date of approval

2 weeks from the date of final approval

-do-

On completion of Engineering

On completion of entire works

(1) The contractor may please note that all resubmissions must incorporate all comments given in the earlier submission by the Employer or adequate justification for not incorporating the same must be submitted failing which the submission of documents is likely to be returned.

(2) All drawings should be submitted in softcopy fonn. however substation design drawings like SLD, GA, all layouts etc. shall also be submitted in AutoCAD Version. SLD, GA & layout drawings shall be submitted for the entire substanon in case of substation extension also.

(3) The instrucnon Manuals shall contain full details of drawings of all equipment being supplied under this contract, their exploded diagrams with complete instructions for storage, handling, erection, commissioning, testing, operation, trouble shooting, servicing and overhauling procedures.

(4) Ifafter the commissioning and initial operation of the substation, the instruction manuals require any modifications/additions/changes, the same shall be incorporated and the updated final instruction manuals shall be submitted by the Contractor to the Employer.

(5) The Contractor shall furnish to the Employer catalogues of spare parts.

(6) All As-built drawings/documents shall be certified by site indicating the changes before final submission.

Technical Specifica tio n: GTR C/ENGG'SPECIG II( (Rev. No :· 14, .I an 20 17) PAGE 9

Page 6 of34

Sac Ion

SECTION·GENERAI. TECHN ICAL REOUIREMENTS (GTRl

5,8 The list of major dmwings/tlocumrnts to be approvlld tu qualify for seconu advance as per Set:lion sec, Shilll be as rer Annexure-D.

6.0 MATERIAL/ WORKMANSHIP

6.1 Gener31 Requirement

0.1 I Where the spedncation doE'S not cnmaln rrferl'nces to workmanship, ~qulprnent,

111awriab and lomponenlS of the t"overed equipment, It IS esselltial thLlllhe sL1me must he new. til highest gr •• de 01 the best quality of theIr kmd. conforming to best j'ngmeenng pl"1lClice .",1 suitable for Ule purpose for whIch thpy arp Intended

0.1.2 In case where' rhf" t")quipnHmt. m,'lteriab or lumporlenls are imhr;:lted III thr ~pedfiC'o:ll1on as "similar" tn dny spetial !>tand.u'd, the Employe.r shall decu1p upon ltw qtle~lIu Tl ul slmlliJrlty. When reqLllrpd hy lIlt-' "'J1l'cificJUOtl ur when reqUired by the Employt.ll [he ContTaLtur shall submit. for approval, all ihe inronmlliol1 (ut1Len1Ing the mtlterials or components tu be us~d in m~mufacture.. Machin~ry, f"qulpn1ent, m,uel l.lb

and components supphed. Installpd or "sed withuut such approv"1 shall run th,' n,k of subsequenl reJection, Jl is to he undcrsrood that [he Losl as well ,iJS th e time delay associatl?d with the rejection shall be borne by the Contrat'tOl .

6.1.3 The desi~n 01 the Works shall be such that installation. nmlre expansions. replacements llnd general maintenance I'nay be underlaken With .:l minimum of rime and expenses. Each .:;:omponent shJII be designed to be consistent With its duty and suitable factors or safelY, subje(.1. to mutual agreements. All jo ints and Jastenings shilll b. drvised. consll ucted and documented so that Ih. component parts shall be ~Iccuratf'ly positionrd and restrai n~d Lo fu lhlltheir required function. In gpnerat screW thre,,,is shall be standard metric threads. The use of other thread forms wil l only be permitted when pnor tlpproval has been obtained from the Employer,

6 1.4 Whone'ver possible. all similar part (If the Works shall be I)'",de to gauge and shall also be made interchangeable WIth SImilar parts. All spare parts shall "Iso be interlhange.able .md shall bt' m~ldf! of the s"lme malerl"ls and workmanship as tlw l orrc;pondmg pari> 01 the Eqlllpment supplied unde r the SpedOcatlOn. Whel'(' feaSible. C"l1Inlon compunent Units shall hr "mployed in dlfferenl p,eces 01 equipment in order to minimi71' spar ... pcu·t~ slocldng reqUirenwnts. All l'quipmenl 01 lht>' same type ami ralmg shall be phys icallv .IIld electTIGllly mterchance,blf'.

6.1 5 All materials and eqUIpment ,hall be Installed In stnel .ccord,,"cr With the manuf;:ic:rurer's recommendauon(s). Only first~class work in 3t:cordanct>' wHh the hest modern practices wHl be 3nepteu. Il1stallatlon shall he (onll)idered a~ being lhi:' erection of eqUipment il t Its permanent location. TIlIS1 unless otherwlsr specified, shall include unpadong. c1eanmg and IIftmg into position. grouting. levelling. alil:nin~, collphng of or boiling down to previously installed equipl1lent bases/foundallon, . perform1n~ rh(.l alignt1H:'l1t check and On;;ll adJustment prior to Il1ItJal uperatlon, (estm~ and commissioning in aaordant:e with the manufactun'rs tolerances, iliStrULtlOns and the Specificalion. AI! facto I)' assemuled rotating marhlnery shall be checkeu for alignmenl3nd adjustments made dS necessary to re·esln blish the manuf:lrtun1r's linllts suitable 1:1Iards shall be prOVIded for the protecllon of personnel on all exposed lolilting and / or movil1R machine p~rt.."" anc! Shill! he ctes i ~ IH:ld for easy In.stallauon .:md removal for maintenance purposes. The spClre f'quipmentrs) shaH be inSlillieu at designated loca tions and tested for healthiness.

6.1.0 The Contractor ,hall app ly 011 and grease 01 the proper speciFication to suit the machmery. " .. IS necessary fur the installation of the eqUipment Lubricants used for I"'tallatlon purposes shall be drained out and the system !Iushe" tJlrough wher<! neces""ry lo r "pplYlng tho lubncant required lor operation. The COIltJ"acror shall applv all operatiunal lubricants to the eqUIpment installed by him.

, ~\. hml.JI ,p"'(IIil,.'allUl1 C rl R

( fM;(j srt·, (dR fll" '<, II. l',n 2111 'I PAGE 10

Sedi<:ln·3

SECTION-GENERAL TECHNICAL REO(JIREMENTS [GTRl

6.1.7 All oil, grease and other consumables used in the Works/Equipment shall be purchased in India unless the Contractor has any special requirement for the specific application of a type of oil or grease not available in India. If such is the case, he shall declare in the proposal, where such oil or grease is available. He shall help Employer in establishing equivalent Indian make and Indian Contractor. The same shall be applicable to other consumables too.

6.2 Provisions For Exposure to Hot and Humid climate

6.2.1

6.2.1.1

6.2.1.2

6.2.2

Outdoor equipment supplied under the specification shall be suitable for service and storage under tropical conditions of high temperature, high humidity, heavy rainfall and environment favourable to the grovvth of fungi and mildew. The indoor equipments located in non-air conditioned areas shall also be of same type.

Space Heaters

The heaters shall be suitable for continuous operation at 240V as supply voltage. On-off switch and fuse shall be provided.

One or more adequately rated thermostatically connected heaters shall be supplied to prevent condensation in any compartment The heaters shall be installed in the compartment and electrical connections shall be made suffiCiently away from below the heaters to minimize deterioration of supply wire insulation. The heaters shall be suitable to maintain the compartment temperature to prevent condensation.

FUNGI STATIC VARNISH

Besides the space heaters, special moisture and fungus resistant varnish shall be applied on parts which may be subjected or predisposed to the formation of fungi due to the presence or deposit of nutrient substances. The varnish shall not be applied to any surface of part where the treatment will interfere with the operation or . performan ce of the equipment Such surfaces or parts shall be protected against the application of the varnish.

6.2.3 Ventilation opening

Wherever ventilation is prOvided, the compartments shall have ventilation openings with fine wire mesh of brass to prevent the entry of insects and to reduce to a minimum the entry of dirt and dust.

6.2.4 Degree of Protection

The enclosures of the Control Cabinets, Junction boxes and Marshalling Boxes, panels etc. to be installed shall comply with following degree of protection as detailed here under:

a) Installed out door: IP- 55 b) Installed indoor in air conditioned area: I P·31 c) Installed in covered area: IP-52 d) Installed indoor in non -air conditioned area where possihility of entry of water is

limited: IP-41. e) For LT Switchgear CAC & DC distribution Boards): IP-52

The degree of protection shall be in accordance with 15:13947 CPart·I)/IEC-60947 CPart-I)/IS 12063/I EC-60529. Type test report for IP-55 or higher degree of protection tes t, shall be submitted for approval.

6.3 RATING PLATES, NAME PLATES AND LABELS

6.3. 1 Each main and auxiliary item of substation is to have permanently attached to it in a conspicuous position a rating plate of non-corrosive material upon which is to be engraved manufacturer's name, year of manufacture, equipment name, type or serial

Techlllcal Spc:o fi cal ion: ljTR CiENGGiSP~C/GTR(Rov.No: ·14 ,J' " 201 7 ) PAGE 11

Pag~ x: 01' 34

St;tC.lloo-J

SECTION-GENERAl, TECHNIf'A!. REO UIREMENTS (GTRI

number together with details ot the loading condItions under which the item 01 substation in question has been designed to operale. and such di-agram pliltes a.s m<lY be reqll ired by the Employer, The rating p late o f earh equipment shall be actOl'dlng ttl lEe requ irement.

6,j.Z All slIeh nameplate" 1",Lructlon plates, rating pl.les of tr.msformers. reactors, (R. CT CV'L SA. Isolators. C & R p<lnels ant! PLCC equlpm"nts shall be bilmgual with HindI msmptlon Rr.,t followed by English. Alternatively two sep"'"te plates one With Hindi ilnd the other wlIlt F.n~Ii," Inscription, may be provlJed.

6,4 FIRST FILL OF CONSUMABLES. OIL AND LUB RI CANTS

All Ihe first fi ll 01 consunlables such as oils. lubnc.nts. filling compound,. tnu ch up IMint'. solderlng/br"zillg materlJ I Iur all copper l"pmC of mCUlt breakers and esspn trill dH"micals t'tr whitll wll! be reqUired to pUlt.he equipment (overed under the scope of the' spedfK.atJons. Into operation, shall be rurnisheLl by the Conlr-actur unless spedfkally excluded under the exclUSions In rh!"s(' sp4. ... Cific3tions Jnti documents.

7.0 DESIGN IMPROVEMENTS / COORDI NAT ION

7 I The bidder sh,,11 offer the equipment meelin~ Ihe requirement 01 the technical s ped(u::auon. However. the Employer or the Contractol" may propose (hanges in the specificallon 01 Ihe equlpmenl or quali ty thereof and if the contractor & Employer agree upon lny such (hanges.lh. speclfic,"ion shall be modified accordingly

7.2 II' .ny such agreed upon change is slich th.t it affects the 1'1'1'. and "hedule 01 completion, the parties shall :lgree In wrlt1ng 3:' to d,e extent. of .any change In the pnce and/or schedule 01 completion hefore the Contractor proceeds WIth Ihe change. Follnwing slIrh agleemenl. the provision thereof. shall h. deemed to have be"n amended <lC'C'ordingly.

7,3 The Contractor s hall be res ponsible for th. Selel1:loli antI deSIgn ul appropnate <'qlllpmenl5 to pruvlde the best co-ordmate" r.rformanee of the enure 'Vstem. The b<ls lC df'sig-n requir~ment.s are tlet;:llIed oU L in thiS Spc-cific;fItion. The design of various components, S:\lb~ass('mblies and ,1ssel1lblie~ shaH be so done rhLlr il facilltatps {'a~y field assembly and maintenance.

7.4 The Contractor has to coordin3l. designs a nd terminatlOos wi lh the agentles (If any] who "r€ Consultants/Cuntr .. ctor for the Employer. 1'1", names of J~enCle, shall be i rH.un tl led to the successful bidders.

7.5 The Conrrartor WIU be called upon j'n attend design co-o rdll1ation O1eel:ings- with the EnglOeer. other Cuntractor's and the Consu lt"nt' of the Employer (if any) dllring lhe penod of Contrdct. The Contrdtlo r shall wtlend such meC'tings at his own (osl at POWERGRID Corporate Centre. t.urgaoll (Haryana) or "tmutually agreed venue as and when reqUired ;:lIld fully cooperate with such ptttson!i and "I genclt~s involved durinr. those dIscussions

8,0 QUAI.ITY ASSURANCE PROGRAMME

8.1 To enSUre that th~ equipment and '.)ervices under the sc:.npe of thiS Conrract, wh(l'{her manU(ilcull'ed 01' perfonnrd within lhe Contr'dt:tor's \I\'orks ur at IllS Sub·Cont'T<lctor·~

premises or dt the Employer's Slle or "' any other place 01 Work .s appllc.ble. are In accordance with the specillcallons. the ConlTaetor shall "nsu re suitable quality ass ur .. Jnce programme to lontrol s ut.:h activltle.."i ilt all point'S necessa ry. A quality aSSUnlllCt:' progl'ilmme of the Contractor shall be In line With ISO requirements &. ~hall generally cover the lollowmg_

.31 The organisation structure for the management Lmd Implementation or thl~ proposed quality L1ssurance pn»)!Ttllnme.

Tt::dml~·.ll "fl':~·lli~.t1lpn l,l R rage I) IIf 1-1 ('I'''''<i(,PH (,Titll{," 'On : 1~ . J.,"~lIi'l PAGE 12

Sedon-3


b) System for Document and Data Control.

c) Qualincation and Experience data of Bidder's key personnel.

d) The procedure for purchases of materials, parts, components and selection of subContractor's services including vendor analysis, source inspection, incoming raw material inspection, verification of material purchases etc.

e) System for shop manufacturing and site erection controls including process controls, fabrication and assembly control.

t) System for Control of no n-conforming products including deviation dispositioning, if any and system for corrective and preventive actions based on the feedback received from the Customers and also internally documented system for Customer complaints.

g) Inspection and test procedure both for manufacture and field activities.

h) System for Control of calibration of testing and measuring equipment and the indication of calibration status on the instruments.

i) System for indication and appraisal of inspection status.

j) System of Internal Quality Audits, Management review and initiation of corrective and Preventive actions based on the above.

k) System for authorising release of manufactured product to the Employer.

I) System for maintenance of records.

m) System for handling, storage and delivery.

n) A quality plan detailing out the specinc quality control measures and procedure adopted for controlling the quality characteristics relevant to each item of equipment furnished and lor service rendered.

0) System for various field activities i.e. unloading, receipt at site, proper storage, erection, testing and commissioning of various equipment and maintenance of records. In this regard, the Employer has already prepared Standard Field Quality Plan for transmission line/substation equipments as applicable, Civil/erection Works which is reqUired to be followed for associated works.

The Employer or his duly authorised representative reserves the right to carry out quality audit and quality surveillance of the system and procedure of the Contractor/his vendor's quality management and control activities.

8.2 Quality Assurance Documents

The Contractor shall ensure availability of the following Quality Assurance Documents:

i) All Non-Destructive Examination procedures, stress relief and weld repair procedure actually used during fabrication, and reports including radiography interpretation reports.

ii) Welder and welding operator qualification certificates.

iii) Welder's identification list, welding operator's qualification procedure and welding identification symbols.

iv) Raw Material test reports on components as specined by the specincation and in the quality plan.

I echnfc al spCCJ fi C'~l l i on: GT R Pilge 10 of 3-1. ("cNGG!SPECIGTR (Rev. No :-14, Jan 2017) PAGE 13

SectIon s

SECTION-C.-NERCI!. TECHNICAL REOUIREMENTS IGTRl

v) The M"nu r"chlring Quality PI."(M!.,!!') indicating Custumer InspecUon Pomt5 (CI Ps) at' various stages ofmanufactul"ing and metnud3 u!!Ied to verily lhat lne inspection amI testIng points In the quahty plan were pnformell !!Iatisfatlorily.

Vi) Factory test results lor tesling required .s per applicable quality plan/technilal speCifications/G fP /D''awings etc.

vi I) Stress rel ief time [emper~Hure charts/oil impregnat ion tinw tl'mperature cl,arts, wherever applicable

8.3 INSPECTION, TESTING & INSPECTION CERTIFICATE

A.:t 1 Conuallur shall procure hOllght o U I items frorn sub-vendors iJS per the list an "Comp~nd , ul1 ' llf Vendors" available on POWERGRID web-s'le www.PQwergndlOdja(;QIll aJtel ~n.sunng compliance to rhr rrquirel11ents/rond iU ons nlt:'l1lioned thert''". C:onrractor ~hall 4!lI:plore first the POSSlhlliti('s ol pro(ul"mg the buught out Items from P(lWrI<GRID approveu exhl1ng vendors. In r ase "I' thrll unavailability / non-respon,e, ContTacto r may Jppr,,"ch POWERGRID lor addll,onal sub ·venclor approvaJ 111 that l.ase, tJle asst'ssl1lrnt report of propus~tI sub vendor by Conlf<lctor ,Iong with the enLiosures as per Anne,ure-F shall be subm itted w,th,n 60 days of tbe dw,rd. Th. proposal shall be reviewed and approval will he Jccorded based on the verificatIOn 01 the documpnt ~ubmltted and/or afte r the phYSILA.l! ;<Jssessmenl of lhe works as the case may be. The physical .ssessment ronducted by POWERGR IO, If ""qul red, sh,,11 be on chargeable basis Charges shall be os per the POWERGRID IIor",> prevailing "t th.t time, whICh s hall be intimated by POWERGR ID scp.r.tcly. II propos"1 for sub-vendor Is ,ubmltted aner 60 days, the ContTactor's propos,1 nonnally will no' t)P consl(l~reu for current LOA. However. POWERGR ID may proces~ lbe casp for developing more vendors for referred items. If found relevant. 111 all (a~es . Il IS li1e responslhdity of the Contractor Uti.lt Projecl actJvihe'i do nol suffer 011 account of del .. y in llpprov.:tl/non aJlProvil l of a new sub-vendor.

The responsibili ty and the bas is of inspeclion for various Items & eqUipment Is placed at Annexure-C along with the requi rement of MQP (Manuf.ctunng Quality Plan), ITP(lnspernoll & Test Plan), FClT(Factory Acceptance Test) which shou ld be valid & POWERGRIO app roved and Level of inspection envisaged against ealh item.

Contractor shall ensure that o rder for items whe,'. MQP /ITP /FAT is required w ill be placed only on vendors having valrd MQP/ ITP/FAT and where the supplie r's MQP/ITP/FClT is e'ther not valid or has not been approved by POWERGRID, MQP shaU he generally submit ted "s per POWf RGRID fom"'t before plaCing order

Item, not covered under MQP/ITP/FAT 'hall be o ffered for In,pectlon "s per POWERGRIO LOCl/technrc~1 Specil1 catio n,/POWERG RI O approwd data sheets/ POWERG IUD appruwd drnwlOgs and r eleva nlilldlilll/ in terna t.onal sL1ndards

InspectIon l.evc)s: pOI implementalion of projcct.'i in a time bound manner and to avoid any delay III deputation of POWERGR ID o r Its .uthori7.ed represenl.il~w. Involvement of POWERG RI D for mspection of various Items / equ.pment will he ba,ed un the level below:

Level-I : Contractor to raise all Inspetuon calls and review th~ I el.Hlrl or tests carried out by the manufacturer, on his own, as per apphrable stalu.Jardsl POWERGRID speciRcarion, and submit 10 conceroed POWCRGRID inspection office/InspectIOn E n ~"nper. CI P/MI CC will be Issued by POWERGRID based 011 review of toS[ , epons/certifIcates of milnulaclur~rs.

T I..'dllli' ,II \1'~d nt:31 I UI1 [ I fR , 1"( ,(, ,1'[( lilR [H" :><" I' I.,n ~IIP' PAGE 14

SECTION-GENERAL TECHNICAL REOUIREMENTS (GTR)

Level - II: Contractor to raise all inspection calls and carry out the inspection on behalf of POWERGRID on the proposed date of inspection as per applicable standards/specification. However, in case POWERGRID wishes to associate itself during inspection, the same would be intimated to Contractor and CIP /MICC will be issued by POWERGRID. Else, Contractor would submit their test reports/certificates to POWERGRID. CIP/MICC will be issued by POWERGRID based on review of test reports/ certificates.

Level- III: Contractor to raise inspection calls for both, stage (as applicable) & final inspection and carry out the stage inspections (if applicable) on behalf of POWERGRID on the proposed date of inspection as per applicable standards/specification. However, in case POWERGRID wishes to associate itself during stage inspection, the same would be intimated to Contractor and CIP will be issued by POWERGRID. Else, Contractor would submit the test reports / certificates of stage inspection after their own review and CIP will be issued by POWERGRID based on review of test reports / certificates. Final inspection will be carried out by POWERGRID and CIP /MICC will be issued by POWERGRID.

Level - IV: Contractor to raise inspection calls for both, stage (as applicable) & final inspections. POWERGRID will carry out the inspection for both stage & final inspection as per applicable standards/specification and CIP/MICC will be issued by POWERGRID.

8.3.2 Contractor shall ensure that to implement the above inspection levels, particularly for the quality control and inspection at sub-vend~r's works, they would depute sufficient qualified & experienced manpower in their Quality Control and Inspection department. Further, to assure quality of construction, Contractor shall have a separate workforce having appropriate qualification & experience and deploy suitable tools and plant for maintaining quality requirement during construction in line with applicable Field Quality Plan (FQP).

8.3.3 The Employer, his duly authorised representative and/or outside inspection agency acting on behalf of the Employer shall have at all reasonable times access to the Contractor's premises or Works and shall have the power at all reasonable times to ensure that proper Quality Management practices / norms are adhered to, inspect and examine the materials & workmanship of the Works, to carry out Quality/Surveillance Audit during manufacture or erection and if part of the Works is being manufactured or assembled at other premises or works. The Contractor shall obtain for the Employer and for his duly authorised representative permisSion to inspect as if the works were manufactured or assembled on the Contractor's own premises or works. The item/equipment, if found unsatisfactory with respect to workmanship or material is liable to be rejected. The observations for improvements during product/ process inspection by POWERGRID shall be recorded in Quality Improvement Register (available & maintained at works) for review & timely compliance of observations.

8.3.4 Contractor shall submit inspection calls over internet through POWERGRID website. The required vendor code and password to enable raising inspection call will be furnished to the main Contractor within 30 days of award of contract on submission of documents by Contractor. After raising the inspection cails, Contractor shaH then proceed as per the message of that particular call which is available on the message board.

8.3.5 The Employer reserves the right to witness any or all type, acceptance and routine tests specified for which the Contractor shall give the Employer/Inspector Twenty one (21) days written notice of any material being ready for testing for each stage of

Tc:c hn iC:lll Speci fica tion : GTR Page 12 o f34 C/ENG GIS PFC'GTR (Rev. No.: 14, Jan 20171 PAG E 15

8.3.6

8.3.7

8 .. 1.fl

8.3.9

8.3.1 0

tUll

8.31l

Sel.:tton-J

SEcrJQ~·GENERAJ. TECUNICAI. REOIJIREMENTS (GTRl

tes ting a5 ident ified in the approved quali ty plan as customer in,pection pOint(CIP) tor indigenous inc;pections, AU inspection (a1l3 for OVerse(lS material shall be given ~ll leastlorty five (15) days in advance. Such tests shall be to the Contractor's account except (01 the expenses of the I nspection Engineer The Employer /illspector. unless \\1tncssing of the tests is waived hy Emp loyer. will attend such tests within Twenty one (21) days of the date ul which the equipmenl is notified "s being ready lor test/inspectIOn. failm~ which the Contractor may proceed with the test which shall be deemed to hove been made In the InspectOr's presence an" he sh,1I forthwith forward to the Inspector three copies of tests, duly cerunecl. Con lr~lctor shrill f'm.ure, before givmg notice for type tes .. that 311 dmwin~s and quality plans h.ve been gOI approved. The eqUipment shail be dISpatched to site only after approval 01 Routine ""d Accpptance test resLllts Jnd I.ssU~lnce of Disprltch Cloar(lnc(> in wnt111g by the Employ~l'.

e lP/Ma'enal Insp.,tloll tlea"mee certi ncate (MICe) shall b. I"u~d by the Employer "fter tn'petUon 01 Ihe eqUIpment or reviewal test reports as lppltc,lble. Employer may \\Iaive all tJlE~ presence or Elllployer's IIlspecUng engineer. In that cast'" tcst \ViU be earned out as per dPproved QP "n" te.st certlficate will be furnIShed by the supplier for Jpproval. elP /M ICC will be ISsue" unlv .fter rev,ew and approval ulthe test reports.

Cuntractor shall genertllly offer material lor Inspection as )If'r supply bdl chart approved by POWERGRID and not before 30 days Iroll1 schedule II1dieat,'d in the bar chart In cas. ContrJctor oUers material[s) for in'pecbon priur to 30 days from til{' scheduled date w,th necessary approval of POWERGRIO, POWERGRID shall ln'peet the material and issue elP only. Howevcl', ill such an exceptional case, MiCe shall be issued nnly as per provlsuln 01 onglnal / rOV1sed approved supply scheUule.

Contractor shall minimize the numher of Inspection calls by offenng optimum qU3nli lies in each inspection cat! allhe respective manufacturer's wurks.

ContrJctor shall inspect the OIaterial themselves and only after they al'e fllily convinced about the Quali ty. they shall o~Ter the material fo r POWERGRI D inspection .n" sh,1I also ensure that relevant porunn of LOA/NOA. approved drawing and data sheNs along WIth applICable QU<1lity Plans are ava ilable at the works of Contractor or their Sub~vendor before the m:ltelial is uffered for ill.spection.

Contractol shall emure lh.t mateftal which has been deared for dispatch afte r Inspectinn w,lI be dispatched wllhln 30 days In case of domestic supplies and within 60 days In lase orOff·shore supplies l!'Om the date of,sslianre oJ CII', Matenal whICh t< not dispatched wlthm stipulated rime 3, above will be reoffered fo r POWERGRID inspe<tiilll 01 specific approval of POWERGRID QA&I shall be obtained for delayed dispatch.

The Employer or IE sh.1I give nullee In wnt1l1g to the CotllTartor. 0 1 .ny ohJectlon ~ilher to c:onrormanc:(' to any drawings or lo any f'qulpment atld workmanship whICh in his oplnlo" is not III aecord"nc~ with !lie Contrarl The COlltractor shall give due consideration to slich obJectrons and 'hall either make Ihe modtficadolb th,ltlllJY be necessdry to meet We said objections or shdll confirm In writing ra the Employer/Inspection Engineel givmg reasons therein, lhat no modlfir:ttions Hie

necessary to comply Wit" tbe Contract.

All Test Reports Jnd documents to be submitted io English durlltg fill.llnsperlton of equipment by POWERGRIO or as and whe l' requiretJ fur submIssion.

'W'hen the factory tes~ have been completed at the Conlra,ctor's or Sub-Contracror's works. the Employer/Inspection EnglneerllE) shall issue a ee,·tmcate to this efrect wtthlll I1ft"en (15) days aftrr lOmpletlon of tests .. sllbmission of documents by Contncror/ntanulacturer but if thr tests are not witne<sed hy the Employer/IE, the ,ertillcate sh.1I be issued wullln HI teen (15) days or receipt of 'he Contractor's Test lCrt,ncate by the Employ~r /1 E. Contractor shall. on complellon of all tcsts , submit test

I L't.-hllh:o l ~1'~nli .. aTlon. hi R l "'.,(,WII tiTRlk" ,,, . 4 . .1,,"'111 'I PAGE 16

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8.3.14

8.3.15

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8.3.19

8.3.20

8.3.21

8.3.22

SocIlon-J


reports within Ten (10) days to POWERGRID IE. Failure of the Employer/IE to issue such a certificate shaU not prevent the Contractor from proceeding with the Works. The completion of these tests or the issue of the certificate shall not bind the Employer to accept the eq uipment should, it, on further tests after erection, be found not to comply with the Contract.

In all cases, where the Contract provides for tests whether at the premises or works of the Contractor or of any Sub- Contractor, the Contractor, except where otherwise specified, shall provide free of charge such items as labour, materials, electricity, fuel, water, stores, apparatus and instruments as may be reasonably demanded by the Employer jlnspector or his authorised representative to carry out effectively such tests of the equipment in accordance with the Contract and shall give facilities to the Employer/Inspection Engineer or to his authorised representative to accomplish testing.

The inspection and acceptance by Employer and issue of Inspection Certificate thereon shall in no way limit the liabilities and responsibilities of the Contractor in respect of the agreed quality assurance programme forming a part of the Contract, or if such equipment is found to be defective at a later stage.

The Employer will have the right of having at his own expenses any other testes) of reasonable nature carried out at Contractor's premises or at site or in any other place in addition of aforesaid type and routine tests, to satisfy that the material comply with the specification.

The Employer reserves the right for getting any additional field tests conducted on the completely assembled equipment at site to satisfy that material complies with speCifications.

Rework/ Re-engineering, if any, on any item/equipment shall be carried out only after mutual discussions and in accordance with mutually agreed procedure. ConlTactor shall submit Joint Inspection Report of equipments under Re-Work/Re-Engineering alongwith procedure for the same to POWERGRID for approval, before t<lldng up the Re-Work/Re-Engineering, failing which POWERGRID reserves the right to reject the equipment.

Contractor may establish a field test Laboratory to execute Civil Construction testing requirements at site with the condition that all testing equipment shall be calibrated from POWERGRID approved accredited Testing laboratories, with calibration certificates kept available at site and all testing personnel employed in the Field Testing Laboratories to be qualified and experienced Engineers or testing to be carried out at POWERGRID approved Third Party Laboratories.

Contractor shall ensure that all possible steps are taken to avoid damages to the equipment during transport, storage and erection.

Contractor shall implement additional stringent quality checks and preparation during installation of GIS at site (if applicable) as per POWERGRID approved guidelines/Tech nical specifications.

Contractor shall ensure commissioning of all CSDs along with Circuit Breakers wherever applicable.

For EHV transformers/reactors:

Insulation oil shall be as per POWERGRID Technical specifications and same grade shall be used for impregnation of the active part & testing at the works of Transformer/Reactor Manufacturer and as well as for filling the Transformer/Reactors at site. Contractor to ensure that windings for Transformer/Reactors are made in airconditioned environment. Core-coil assembly shall be performed in positive

TechOl c;l] Spcc jfie-..a ti on: U"J R Page 14 of J-t C/ENGCi i SP EC/CiT R (Rev. No :-14. Jail 2017) PAG E 17

83.23

9.0

9.1

SECTION-GENERAl. TECHN ICAl. KEOlIiRFMENIS ((jIB)

pressurized dust controlled environment. DU5L measuremenr., sh.:lll be monitored regu larly at Transformer / Reactor' Manufacturer works. r.onrractor shilll cnS\ln~ that r~.speClive Civil roundlltions &. Fire walls lor Tran:,:(orlller/Re.<lctors Units to be commissioned. ~hali be made ready at concemeu sit~s bel ore releipl of Transtol1ner/Realtor~ units, J\1I the requisite matt"'rial lOT Neutral & DeitJ Bus (orma Li on required for charging 01 complete bank of 765KV rlass 1 ph TranslumlerjReactor units shall be fl l3ue 3vClilabie ill the cnncenlCn sites before ,ec~lpl 01 Lhe Transtormer /Rc:lrtor units at site.

The t::mployer reServes the right to increasp or decrease their involvement in Inspec[]ons at Contrauor's Works nr aI' his Sub-Contractor's premise~ or jilt the Employt"r\ site or at any olher place of Work based on ~lerformJnt:e 01 Conlrilctor /suh·r.ontractor

TYPE TESTING & CLEARANCE CERTI FICATE

All .qulpm~nl bemg ,upplled <hall conform lo lype le,ts". per lechnical <pr<·,firation anol)hall be subjetl tu rouUne te:o:;ts In ;In;ord~nce with requirement.s .sllPUlille-d unner res-pectivc sections.

The reports for all type tests as per lechnlml 'pecificatlOn shall b., furnished by L11~ Contractor dlongwlth eqUipment / material tlr.l\vmgs_ However, type tcst reports ~)I

<imi).r equipment,/ maL~rlal a)re<Jdy accepted In POWERGRID ,hall be applic.ble for all projects with similal requirement. TIle type tests comlutted earlier shuukl have etCher been conducted in accl'edlle,1 l"boraLory [accredited based on ISO / IEC Guld~ 25 / 17025 or EN 45001 by the nalional accredilatlOn body of the (OUnlry wher~ laboralory is localed) or witnessed iJy POWERGRID or representative authorized b}' POWEHGRID or Utilily Or representative of accrediled (esll.b.

Unless 0Ih ... ,1se s peCified elsewhere, the type test reports submitted sh.1I he of Ihe tests conducted within I.st 10 (ten) years from the date of NOA. In case the tesl reportS are 01 the lest conducted earher than 10 (len) yea", from the date ot NOA. lh~ contr"Itot shall repeallhese lest{s) at no ."tra (OSIIO the Employer.

Further, in the CVl.:'nt uf any t1lscrepilncy in thC' test reports I.~. <lny te.'\t report not aCL:eplJbl~ due to any tlesign/manutacLUnng changes or dul' to non'[omptiiJnce With

the re4ulreOlent slipulated in the Tecllnital SpecificatIOn or any/all type le,L, nol carried 0\1[, same shiJll be cam('d out widwlIl .:.Iny ::Jdtlluon>J1 cost implication Ul the Employer.

The ConlrJclor sh.1I Intimale u,e ;;mplayer the deGliled prograln aboul L1,e Iype lesL, adeasl (wO (2) weeks In .dvance 111 case of domestic <upplies & six (6) w~eks In adwmce in case oj rore lgn suppl1("'S,

9.3 The Employe, intends lo repeat Ihose type tests which are Indic.1T.ci In Ihe price schedule and the same sh.1I be payahle as 1,.r provision or contract. Ihe price of condueLing type teslS shall be Induded in Bid price and break up 01 Lhese shall be gIVen in (he rele"anl schedule of llid Propo",1 Sheets. These Tvpe leSI charges would be considered in bid evalu.Jlion. In c..lSC Bidder does not indicate charges for any uf the lype tests or does not mention the name or any test in the pnce schedules. )t will be presumed that the pa rtico l"r lesl has been on·ered free 01 charge. Further. In case any Bidder Indicales that he shall not carry out a particular test, his oller ,hall bp consldeled Illcomplete '10" shall be liable 10 be rejected. The ~mplover reserv", the right to waive (he repealing of type tests par'uy or fully and in case of waival. lesl charges for the same shall nOI be payable.

r~~hm(~1 "p":-(JIh:~llltfTt . • il R ll"(,(,"l'I·( (illtn{":,·lI,,Iu . -l~ .1;1I1 ':u·, PAGE 18

ScClioo-3

SECTION·GENERAL TECHNICAL REOUIREMENTS (GTR)

9.4 The Employer reserves the right to witness "ny or all the type tests. The Employer shall bear all expenses for deputation of Employer's representative(s) for witnessing the type tests.

9.5 The list of makes of various items, for which Type test reports are not required to be submitted are specified in Compendium of Vendors (COV).

10.0 TESTS

10,1 Pre'commissioning Tests

On completion of erection of the eq uipment and before charging, each item of the equipment shall be thoroughly cleaned and then inspected jOintly by the Employer and the Contractor for correctness and completeness of installation and acceptability for charging, leading to initial pre·commissioning tests at Site. The list of pre· commissioning tests to be performed are given in respective chapters and shaH be included in the Contractor's quality assurance programme.

10.2 Commissioning Tests

10.2.1 The "vailable instrumentation and control equipment will to be used during such tests and the Employer will calibrate, all such measuring equipment and devices as far as practicable.

10.2.2 Any special equipment, tools and tackles required for the successful completion of the Commissioning Tests shall be arranged by the Contractor at his own cost

10.2.3 The specific tests requirement on equipment have been brought out in the respective chapters of the tech nical specification.

10.3.4 PRECOMMISSIONING, COMMISSIONING, TRIAL·RUN & COMPLETION

As soon as the Facilities covered by these specifications are physically completed in all respects, the Pre commissioning, Commissioning. Trial-run and Completion of the Facilities, as mentioned below, shall be attained in accordance with the procedure given in the Conditions of Contract, VoL·1 of the Bidding Documents.

(i) Pre commissioning (ii) Commissioning

As per relevant Sections : Charging of the Facilities at rated voltage.

Further, wherever appearing in these speCifications, the words-'commissioning checks', 'installation checks', 'site tests', 'performance guarantee tests for fire protection system', are to be considered as 'pre commissioning checks'.

(iii) Trial·run

(iv) Completion

Operation of the Facilities or any part thereof by the Contractor immediately after the Commissioning for a continuous period of 72 (Seventy two) hours continuously. (n case of interruption due to problem/ failure in the respective equipment, the contractor shall rectify the problem and after rectification, continuous 72 (Seventy two) hours period start after such rectification . Upon successful completion of Trial-run.

'Guarantee TestCs)' and/or 'Functional Guarantees' are applicable only for Substation Automation System as specified in Section-'Substation Automation System:

10.3. The Contractor shall be responsible for obtaining statutory clearances from the concerned authorities for commissioning the eqUipment and the sWitchyard. However necessary fee shall be reimbursed by POWERGRID on production of requisite documents.

Tl."t hnica.l Speci ficalion: GTR Page 160f 34 C/ENGG,SPr,C/GTR(Rov No.:· 14 ,J,n2017) PAGE 19

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12.0

12.1

12.2

1l.1.1

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12.2">

12.2.4

12.2.5

SECTlON·GENERAI TECIINICAI, REOlIIREMENTS (GTRI

PACKAGING & PROTECTION

All the equ.pmenL' shall be sulL.lbly protected, coated, covered or boxed and crated to prevent dami1ge Dr deterioratJon durIng ttnllsil. handling and storage at Sit"c nil rhr lime ot erection. On requ~st of the Employer. the ConlraC(Qr shall also suhmit packing detalls/assotlaled drawing for any equipmenl/material u"d~r ~IJ' scope 01 supply, to lanil"'t. the Employer to repack any eqUipment/material at a laler dale, In case the n.ed ari«s. While pdck.ng "II the matenals, the limltanon from lhe pOint 01 view 01 availability of Railway wagon sizes In India should be taken Into "(lOllnt 1'1,. (ontmctor ,hall be responsihle for ,my loss or damage during transportation, handhng and ,torage "ue 10 .mproper pack,"!} Any demurrage, wh>rfage and other such ch<lrg.~ da1mcd by th~ tTan~porters. railways etc. ,hall be to the Jccounl of the Contr<1ctor. Employer tak~s 'lU responsibility 01 the 3v",lab.ilty of the wagons

An coaled surlaces sh:r1fl he jllO(l'cted ,lgainsl abra~lOn. lmp;lI:l, discnlourdliun and dl1Y nlh_r damages. All exposed threeded pOrTions shall be sultJblv protected wrlh elthe,. I

me.allic or a non-metallic proteelmg c1eVlcr, All ends 01 all valve, <lnd plprngs aorl condUit eqLllpml'nt t'onn~lduns: shall be properly sC:r1lcd with sui l'3ble d~Vltl::'~ to prolect them from d<1ma~e.

FINISHING OF METAL SURFACES

All metal surfaces shall be subjecled lo treatment for anti·corrosion proleclion. All ferrous surfaces for external use ul1le~s otherwise stated elsewhere in the spedftcauon or spec.ncillly agreed. shall be hot-d ip galvanized "fter fabrication. All steel conductors includil1g those used for earthing/ground ing (auove ground level) shal l .Iso b~ galvanized accurdlng to IS: 262~_

HOT DIP GALVANISING

The minimum we.~hl of the zinc (Oallng shall h. 61 0 gm/sq.," and mlmmum average thickness "f coaling shall be fl6 microns for all items having thrckne,s frmm and above and 900 ~m/sq,m ro r coastal area (30km from sea shore approximately) or .s specified in Section-Project For Items Inwf'r than 6mm lhickness requirement of co_tJug thickness shall he <15 per lelev_nt ASTM . For stlrface whirh sh.1I be embedded 10 concrete, the ~l11c coating shall be 610 gm/'q.nr mlnrmum and 900 gm/sq.m for coasbl area as speCified in Section~Project.

The galvanized surfaces shall co nsist of a continuous and uniform thick ((lilting ofzlOc. finllly i1dhering to the stlrface of sleel. The finished surface shall be Liean and ,mooth and sha ll be free Irorn defects li ke discoloured patches, bare ,pots, unevenness or coating, spelter whith is loosely attached to the steel globules, spiky deposits, blistered surface. nakin~ or peeling off, elc. The presence of OilY of these delecL, nOllced on vis"al 01 microscopic inspection shall render the material liDble to rejettlOn

After galvilnizing, no drlllln~ or welding shall be performed on the gaivallizetf parts of the equIpment exc~ptmg lhilt nuts may be dlreatled ilfter galvanizing, Sodiull1 dlchmm<1te or alternate- approved tn~'atment shaH be prOVided lu avoid formation of while rW;il after hot dip galvanization.

Th~ gdivalllzed ,teel shall be subjected to 10111' numbers of one minute dips in copper sulphate solullon as per 15,2633 .

Sharp edge, ,vith radII I." than 2_5 mm sh,rll be able to w.lhSL.1nd fOllr immerSIOns or lhe Standard Pre.c" le,t All othe r coatmgs shall wlth'tilnd six Immor.<lon<. Th .. followllrg galv<lnl7lng tests should essentially hp performed as per r.lev,lOl In"m" St.ndards,

CO;] t i ng lh i rkness

Uniformity ofzlnl

·!c..:lttm·,:tI .... r.: .. ·lltl.:;II IUl! llJR

( ~";(; s,·~, r; rll ,K« ,,, .. 14. hn .11' I PAGE 20

12.2.6

12.3

12.3.1

12.3.2

12.3.3

12.3.4

12.3.5

12.3.6

Sec[ion-3

SECTION-GENERAL TECHNICAL REOUIREMENTS [GTR)

Adhesion test

Mass ofzine coating Galvanised material must be transported properly to ensure that galvanised surfaces are not damaged during transit. Application of touch-up zinc rich paint at site shall be allowed with approval of Engineer Incharge.

PAINTING

All sheet steel work shall be degreased, pickled, phosphated in accordance with the IS-6005 "Code of practice for phosphating iron and sheet". All surfaces, which will not be easily accessible after shop assembly, shall beforehand be treated and protected for the life of the equipment The surfaces, which are to be finished painted after installation or require corrosion protection until installation, shall be shop painted with at least two coats of primer. Oil, grease, dirt and swaf shall be thoroughly removed by emulsion cleaning. Rust and scale shall be removed by pickling with dilute acid followed by washing with running water, rinsing with slightly alkaline hot water and drying.

After phosphating, thorough rinsing shaD be carried out with clean water followed by final rinsing with dilute dichromate solution and oven drying. The phosphate coating shall be sealed with application of two coats of ready mixed, stoving type zinc chromate primer. The first coat may be "flash dried" while the second coat shall be stoved.

After application of the primer, two coats of finishing synthetic enamel paint shall be applied, each coat followed by stoving. The second finishing coat shaJI be applied after inspection of first coat of painting.

The exterior and interior colour of the paint in case of new substations shall preferably be RAL 7032 for all equipment, marshalUng boxes, junction boxes, control cabinets, panels etc. unless specifically mentioned under respective sections of the equipments. Glossy white colour inside the equipments /boards /panels/junction boxes is also acceptable. The exterior colour for panels shall be matching with the existing panels in case of extension of a substation. Each coat of primer and finishing paint shall be of slightly different shade to enable inspection of the painting. A small quantity of finishing paint shall be supplied for minor touching up required at site after installation of the equipments.

In case the contractor proposes to follow his own standard surface finish and protection procedures or any other established painting procedures, like electrostatic painting etc., the procedure shall be submitted during detailed engineering for Employer's review & approval.

The colour scheme as given below shall be followed for Fire Protection and Air Conditioning systems

S.No. PIPE LINE Base colour Band colour fire ion SYstem 1 Hydrant and Emulsifier system FIRE RED -

pipeline 2 Emulsifier system detection line- FIRE RED Sea Green

water 3 Emulsifier system detection line -Air FIRE RED Sky Blue 4 Pylon support pipes FIRE RED Air C .. , Plant 5 Refrigerant gas pipeline - at Canary Yellow -

compressor suction _.

T!!chmc<ll Speci ficil tion: G rR Page I!l- 01' 34 CiENGG iS PEC IGTR (Rev. No.:-14. Jan 2017) PAGE 21

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13.0

13.1

13_2

13.3

~CrT!ON·GENERA!. TECIINICAI REOUIREMENTS [GIRl

S_No_ PIPE LINE Base colour 6 Relngerant gas plpelinL" a t Canary Yelll)w

compre.s.sor discharge 7 Refngerant hqu ld pipel/nt' Dark Admirally

Green -8 (hlllrd wawr pipeline 5e-a Green 9 Conden~er water plpellne S(.!'a Grt!en

The dlrecllon of now shalllw marked hy - (arrow) In black colour.

r.tlZllAIV.a:nztUJllV2VV22LJ Bdse Colour DlrecUon or nm\! B~l nd Colour

Band colour R~d

-

-Dark Blue

For aluminium casted surtJces. lhe surtace shall be with smooth fini5ih, Further, in Gtse or a lum in ium enrlos ll rrs. rhe surface shaH be coated with powder ll.:o<Jting lhickn~.s 01 60 mIcrons) after surface preparation ror painting For slainl~ss steel ~urfLll.:es. no patnt1ng is env isaged

HANDLING, STORING AND INSTALLATION

1n dn:ordJm.:e \.Vllh the sprcific InstaHalion Instructlons as shown on manuracturer' s ulawing, or ", dlrecteri by Ihe Employer or Ills representative, the Contraclor shall unload. store, erect, ln~wll. Wire, le.'';land place II1lO commerc-laiust' allLhe ~(luipllltmt mcillded in the [ontr"aI..L Equipment shOll! b~ Installed in a neat. workm,anhk{' manner so that illS level, plumb, ~qual'. and 1'1 DpHly aligned and onented. Com mercial us. 01 !iwilchyard equipment means cOlllpletiOil of all site tests specltied and enf"rglsatmn al "led voltage.

Contractor may t:"ngilg~ manuracturer's Engmeers to supervise the unloading. tnnsportation to site. s toring, tesllng and commlsslomng or the vClriolis ('qlJipment being procured by them separately. Contractor shall unlo;1Ll, transport, store. erect, test and commission the equipment as per ins("rurtions of the manUrdtrurer' ~ superv1sorv Engmecr(s) and s hall extend full cooperotion to them.

The contractor mnst ensure that the open slorage p latform las per Drawing No L IiNI;G-CVL-STD-PLATFORM-O I, R~v.O) is constructed lor storage of oUldoor typp equi pmC'nt/malerlal prior Lo (ornmencemenl of de livery a t site. OU ldoor equ ip menL shall he stored on op~n storage platform. properly covered with waterproof and d uslproof covers to protect them trom wat~r seepage and moisture ingrcs').

lIowever. all indoor eqlJlpment."i including conti ul & proteclIon panels, Commumcrlhon eq\1lpmenl5 and oper.Jung meclmmsm hoxes etc. of outdoor eqWpmenb shall be slDred mdoors.

Storage 01 equi pment on top of a l10th.t une Is nUl pennll~.d if the wonden packing is uset1 and there 15 pOSSIbIlity of equlp!1lenl/paclong damage Maten,,1 oprned for joint Inspection shall be repacked properly as per t11Bt,ufacturer's rttommendallnns.

DurinR sto r"age of material regular penodlc monitOring of Important pardmeler~ like alll.vel/leakage, SF6/ Nitrogen pressure eLe. shall be ensared by Ihe rontractor.

L:~.4 tn C3.se of any doubt/misunderstanding as to the corre(:t interpretation of 1l1;Jnufarturer"s drawings or instrm;:tions, necessary clariflcat1On~ shall he obtained lrom the em ployer Contractor shall be held responsible fOI any damage to thp eqmpmeJ1t consequent to not following mrlnufacturer's dr.cl\ov il1gs/instructlons correctly.

13.5 Where "".mblles are "upphcd in more than olle seWoo. Conlractor 'hall tIlJk. ,II necess{1ry mech~lnlral and e tectTlc.ll connectIons bttween S~tUon.s including the connecnnn hil!Meen buses, Contnctor 5ihall illso do nrt,;essal y ad}ustments/alignments

T ,-,",:l1nl(;l! Sl~r.:ll·l,-allul1. (iTR ( r"',I, ,PI I ufRlR<, "" 111,11 ""111 PAGE 22

13.6

13.7

13.8

13.9

13.10

13.11

13.12

13.13

Sectio ll-3


for proper operation of circuit breakers, isolators and their operating mechanisms. All component') shall be protected against damage during unloading, transportation, storage, installation, testing and commissioning. Any equipment damaged due to negligence or carelessness or otherwise shall be replaced by the Contractor at his own expense.

Contractor shall be responsible for examining all the shipment and notify the Employer immediately of any damage. shortage. discrepancy etc. for the purpose of Employer's information only. The Contractor shall submit to the Employer every week a report detailing all the receipts during the weeks. However, the Contractor shall be solely responsible for any shortages or damages in transit, handling and/or in storage and erection of the equipment at Site. Any demurrage, wharfage and other such charges claimed by the transporters, railways etc. shall be to the account of the Contractor.

The Contractor shall be fully responsible for the equipment/material unbl the same is handed over to the Employer in an operating condition after commissioning. Contractor shall be responsible for the maintenance of the equipment/material while in storage as well as after erection until taken over by Employer, as well as protection of the same against theft, element of nature, corrosion, damages etc.

Where material/ equipment is unloaded by Employer before the Contractor arrives at site or even when he is at site, Employer by right can hand over the same to Contractor and there upon it will be the responsibility of Contractor to store the material in an orderly and proper manner.

The Contractor shall be responsible for making suitable indoor storage facilities, to store all equipment which requires indoor storage.

The words 'erection' and 'installation' used in the specification are synonymous.

Exposed live parts shall be placed high enough above ground to meet the requirements of electrical and other statutory safety codes.

The design and workmanship shall be in accordance with the best engineering practices to ensure satisfactory performance throughout the service life. Ifat any stage during the execution of the Contract, it is observed that the erected equipment(s) do not meet the above minimum clearances the Contractor shall immediately proceed to correct the discrepancy at his risks and cost

Equipment Bases

A cast iron or welded steel base plate shall be provided for all rotating equipment which is to be installed on a concrete base unless otherwise agreed to by the Employer. Each base plate shall support the unit and its drive assembly, shall be of a neat design with pads for anchoring the units, shall have a raised lip all around, and shall have threaded drain connections.

14.0 TOOLS

14.1 TOOLS & PLANTS (T&P)

The Contractor shall arrange all T&P (such as necessary supports, cranes, ladders, platforms etc.) for erection, testing & commissioning of the system at his own cost Further, all consumables, wastage and damages shall be to the account of contractor.

All such T&P shall be taken back by the contractor after commissioning of the system.

14.2 SPECIAL TOOLS AND TACKLES

The contractor shall supply all special tools and tackles required for Operation and maintenance of equipment. The special tools and tackles shall only cover items which

Technical Spcci fi cn tlOn: GTR Pag' 20 00 4 C/ENGG/SPEUG rR (Rev. No :-1 4 , Jon 2017) PAGE 23

L4.3

l 4.3 1

14.3 .2

15.0

15. 1

'SeetIO" , ~

:>FC[lON-GtNERAL TECHNICAL REQUIREMENTS (GTR)

Me speCIfically required for thp f'(1ui pment offel ed and are pro priel11ry in nature. The li st 01 s peciallools and t.JCkles . If any. shall be finalized duri ng deldll engineering and the same shall be s up plletl w ilhou t any addl\lonal cos1. lmplication to the Emplover.

FACILITIES TO BE PROVIDED BY TIl E EMPLOYER

Em ployer s hall make av" lable the auxi lia ry su pplies at a single point 111 the substa tion on cha rgeable basis. The p revalhn ~ ener~ rates or the stllte shall be applil"dble All fun her d istribution Irom Ule same lor constructio n supp ly shall be made by U,. contractor However. in ru~e of faHure of power due Lo i;my unavOld~ b!e rirCUnlstJlnc{'s. lhe contr.::u::tor "hall make his own nec.:t:!ssLlry .Jrr.mgemenls like diesel ~en(1ralor <;;rts ... tc. L1 l hiS own cost 'i0 that progrf'SS o f work b not aileclecl Jnt.! Employe r shril l in no ta<e he I e,ponslble for any delay In works b~ra u se or non -ava ilability 01 power

EmploYN shall make " vdllable constroCUon wate r 'upply .11 a si ngle point ill the , ubstatlOn. All further d isnibution lur the , arne shall he made hy the r.",manor. III case uf non-avall.lbility or Inadequate ;lvailabiHty 01 wa ler ra r L:unslnu:tlOn work. tllr rontractOl shall make hiS own arra ngcmrnt at his own cost anJ Lh ~ Employer shall In

no ca.'" he responsible for any d.lay in work' beel U," or non-availa bIlity urlnade4uale ava Ila bi li ty of waler.

AUXI LIARY SUPPLY

Tho auxil iary power lor staLion s upply, includi ng tho eqUipme nt drive, cooling system ul any eqUipment. ai l -co nditionIng. lighting etc shall be designed for the spe<lfied Parameters as lind." The DC su pply ror the instnlmentado ll and PI.CC sys tem sh" ll ~l lso conform the pa rameters as indicated in the following Ulble: r-. Normal I Variation in Frequ ency in Phase/Wi I'. Neutral

Voltage Voltage HZ c:onnection

415V ± LO% ~5% 3/4 Wire Solidly Earthed.

240V :,. 10% SO ± 5% 1/ 2 Wire Solidly F.arthed.

2 20V 190V to 240V DC Isolated 2 I Wire System -

110V 95V to 120V DC Isolated 2 -wIre System

48V -- DC 2 wire . system (~J ea rth ed

Combined variaUon of voltoge and rrequency shall be lim ited [0" 10%.

16.0 SUPPORT STRUCTURE

16.1 The equIpment su p port struccures s hall be , uitable for eqUi pment [Oli neClIon, a t th e fi rs t level i.e 14.0 m~ler. 8.0 mete r. 5.9 meter and 4.6 meter from plinth level lor 76SkV. 4 00kV, 220kV "nd InkV su bsta tions respectively . All equipment support ; trocttJres shall 1>. supplied alongwlth brackets. allgl.s. 5lools elc. fo r attaching the operatmg mcchanislll lOnlrol cabinets & marshalling box (wherever appll cahlo) etc.

16.2 The mln llnum vertical rlist.iln ~ ~ Inun the bouum of the lowest porcelain parr or the hushlllg. po rcelo", enclosure, or suppurting Insu lators to the bottom or the equipment base. where It rests on lhe loundonon pad shall be 2.55 metres.

17.0 CLAMPS AND CONN ECTORS INCLlIDING TERMINAL CONNECTORS

T('dulI..:n l ~flo.·i.,: lfi l.J l llln ( rJ K , 1",.1 .• 'rl( liTI!iJ{<, N., IJ . .1 ",:III ' 1 PAGE 24

Seclion-3

SECTION-GENERAl. TECHNICAL REQUIREMENTS (GTRl

17.1 All power clamps and connectors shall conform to 15:5561 or other equivalen t international standard and shall be made of materials listed below:

51. No. Description Materials

a) For connecting ACSR Aluminum alloy casting. conforming to condu ctors/ AAC conductors/ deSignation A6 of 15:617 and all test shall Aluminium tube conform to 15:617

b) For connecting equipment Bimetallic conn ectors made from terminals mad of copper with aluminum alloy casting. conforming to AC5R conductors/AAC designation A6 of 15:617 with 2mm thick conductors/ Aluminium tube bimetallic liner/strip and all test shall

conform to 15:617

c) For connecting G.I Galvanised mild steel shield wire

d) Bolts. nuts & plain washers Electro-galvanised for sizes below M12. for others hot dip galvanised.

eJ Spri ng washers Electro-galvanised mild steel suitable for atleast service condition-3 as per 15:1573

17. 2 Necessary clamps and connectors shall be supplied fo r all equipment and connections. If corona rings are required to meet these requi rem ents they shall be considered as part of that equipment and included in the scope of work.

17.3 Where copper to aluminum connections are required, bi-metallic clamps shall be used. which shall be properly designed to ensure that any deterioration of the connection is kept to a minimum and rest ricted to parts which are not current carrying or subjected to stress.

17.4 Low voltage connectors, grounding connectors and accessories for grounding all equipment as specified in each particular case, are also included in the scope of Work.

17.5 No current carryi ng part of any clamp shall be less than 10 mm thick. All ferrous parts shall be hot dip galvanised. Copper alloy liner/strip of minimum 2 mm thickness shall be cast integral with aluminum body or 2 mm thick bi-metallic liner/s trips shall be provided for Bi-metallic clamps.

17.6 All casting shall be free from blow holes. surface blisters. cracks and cavities. All sharp edges and corners shall be blurred and rounded off.

17.7 Flexible connectors. braids or laminated straps made for the terminal clamps for bus posts shall be sui table for both expansion or through (fixed/sliding) type connection of IPS AL tube as required. In both the cases the clamp height (top of the mounting pad to centre line of the tube) should be same.

17.8 Current carrying par~< (SOOA and above) of the clam p/ connector shall be provided with minimum four numbers of bolts preferably for 132kV & above.

17.9 All current carrying parts shall be designed and manufactured to have minimum contact resistance.

17.1 0

17.11

Power Clamps and COnnectors shall be designed to control corona as per requirement.

Tests

Clamps and con nectors should be type tested as per IS:5561 and shall also be subjected to routine tests as per 15:5561. Following type test reports shall be submitted for

Technical Specifi cation: GTR Page 22 of34 CIFNGGISPEClGTR (Rev. No.: - 14. Jan 20171 PAGE 25

SECTION-GENERAL TECHNICAL REOIJlREMENTS (GTR)

approval Type test onc" cOlJduaed s hdll holtl good The lequirement 01 lest cond ucteli Within last ten years. shall not be appl icable.

I) Temperature rise test (max imum l emperalUre ri,>p allowed is 35"L OV('f ~O·( Llmblen t)

ii) Short tIm. current test

iiI) CQrona (d ry) [for 400kV oil'; "bove] "nd RIV (dIY) test 1(01 132kV ~nd abuv.· voltage level clamps)

JV) ReSistance lest and tensllf" lest

18.0 CONTROL CABINETS, JUNCTION BOXES, TERMINAL BOXES & MARSHALLING BOXES FUR OUTDOOR EQUIPMENT

18.1 All types of boxes. cabinets etc shall generally conlorm to & be tested in accordone" wiLh 15-5039/ IS-6623. I EC-60419_ as a pplicable, and the clallses ~iven below:

tH,Z (ontrol cabinets. jUllcllon boxes, M~l rshalling boxes & lerm inal buxes shall be made 01 stamless steel or atleast 1.5 111m thick Or a luminum endosure of illleast 1.b mm thick a nd sholl he d ust. water a l1d vermin proof Sta inless steel used shall b. 01 grade 55]0'1 (553 L6 for coastal area] or bettor. rhe box shall be properly braced to p revent wotJ.bllng. Th\!re shall be sufficient reinforcement to proVide level surfaces. reslslance to vihrations and rigi dIty during ",.nsportaUon and installanon In case of a luminum endosed hox the thickness of ahnnt", l", shall be such that it provld., ' '' . quat. rigidi ty and long life as comp.r.lble with sheel steel of sperified thickness.

18.3 A ca llopy an d ""hng Mr.lngemenl> lor oper.ttlng rods shall be proVlned in marshalling hoxes / Co ntrol cabinets to prewnllngre» 01 rain waler.

18.-1 Cablnel/hnxps shall be provided wllh double hinged doors wiLh podlocking a rrangeme nts. The dlslance br-twccn two hinges shall be adequale to enslln~' unifoml sealing pressure agai nst atmosphere.

185 All dool's, removable cove", .11" ] plales shall be gasketed oil arou nd with Sllllably prufiled EPDM/Neoprcne/PU gaskets. Th e gasket shall be tested in .lceordanLe With apl>roved quahty plan, 15:11149 and IS:3400. Venli lati n~ Louvers, if p rovided, shall have screen and hJters:. The Screell sh<J 1I be fine wire mesh made of brass.

Further, the gaskedng arrangement sh,')l be ,uch thal gaskets ore pa_, ted in s lots (i n ch)or labnc:luon/gasket Itself) in order to r "event ingression 01 dliSl ilnd mOisture inside tJlt~ panels so that no in temLlI rusting occurs In panels during the opl'ration vf the cqulpmenL

18.6 1111 ho,cs/rabil1ets 'hall be de,lgned ror Lhe entry o( c.bles by mea ns of wearher proof and dust-proof connections. HOKeS and eabineb sh.1I be designed with generous Ll~aralU.:e.s to aVOid mterf(' rrncc bt"l"\veen tht:! wi ring t'nll! ring fronl below <lnd any termi"a l bloci<> or accossones mounted WIthin the box o r cabllleL Su itable rable gkllld pl"te above the b.,. of lhe marshalhng kiosk/hox shail be provided for this purpose a lo ng WIth the propel blanking pl~l.s. Necessary numher o f cable glamls sba ll be supplied dnd Atted n n thIS gland plate. Gland plale sholl have proVISion rnr some future gl~ntls lo be proVided I.ter. if requI red. The Nickel plated glands shall be dust pruof. screw on & doub le compressIOn type and made of brnss. The gland ,hall hav .. proVision for '~ruring arnlOU I 01 lhe cabl. s.p"ral~ly and sholl be pl'ovlded wilh eartlu ng ta~.

The gland"hall confoll1l to BS:0121.

18.7 A 240V. singlp ph." •• 50 Hz, 15 ilmp AC plug "nd ,ocket shall be provided in tho cabi net wilh ON-OFF switch for connection o f hand lamps. Plug ono socket sholl be of i ndustr i.1 grade.

r .. xhlllt.:nl \p.:t:llkJ.l ll'll (,TR , ' ''''iC;WH Iil lli R<\ ~.,. . J.l J"n~lIt I PAGE 26

SeaIOr)..J

SECTlON·GENERAI. TECHNICAL REOUIREMENTS rGTRl

IS.S LED based illumination or minimum 9 watts shall be provided. The switching or the fittings shall be controlled by the door switch.

IS.9

IS.10

IS.11

18.12

18.13

19.0

For junction boxes of smaller sizes such as lighting junction box, manual operated earth switch mechanism box etc., plug socket heater and illumination is not required to be provided.

All control switches shall be of MCS/rotary switch type and Toggle/piano switches shall not be accepted.

Earthing of the cabinet shall be ensured by providing two separate earthing pads. The earth wire shall be terminated on to the earthing pad and secured by the use of self etching washer. Earthing of hinged door shall be done by using a separate earth wire.

The bay mars halling kiosks shall be provided with danger plate and a diagram showing the numbering/connection/feruling by pasting the same on the inside of the door.

The following routine tests alongwith the routine tests as per 15:5039 shall also be conducted:

i) Check for wiring

ii) Visual and dimens ion check

The enclosure of bay mars halling kiosk, junction box, terminal box and control cabinets shall conform to IP·55 as per 15:13947 including application or 2KV rms for 1 (one) minute, insulation resistance and functional test after IP- 55 test

DISPOSAL OF PACKING MATERIAL & WASTE FROM CONSTRUCTION SITE

After completion of the work, Contractor shall dispose·off all the packing & waste materials including empty conductor drums. cable drums, wooden containers, oil drums, gas cylinders and other waste/ scrapped materials from construction site at his own cost and shall make the substation area properly cleaned.

20.0 TERMINAL BLOCKS AND WlRING

20.1 Control and instrument leads from the switchboards or from other equipment will be brought to terminal boxes or control cabinets in conduits. All interphase and external connections to equipment or to control cubicles will be made through terminal blocks.

20.2 Terminal blocks shall be 650V grade and have continuous rating to carry the maximum expected current on the terminals and non·breakable type. These shall be of moulded piece, complete with insulated barriers, stud type terminals, washers, nuts and lock nuts. Screw clamp. overall insulated, insertion type, rail mounted terminals can be used in place of stud type terminals. Sut the terminal blocks shall be non·disconnecting stud type except for the secondary junction boxes of Current Transformer and Voltage Transformer.

20.3 Terminal blocks for current transformer and voltage transformer secondary leads shall be provided with test links and isolating facilities. The current transformer secondary leads shall also be provided with short circuiting and earthing facilitie s.

20.4 The terminal shall be such that maximum contact area is achieved when a cable is terminated. The terminal shall have a locking characteristic to prevent cable from escaping from the terminal clamp unless it is done intentionally.

20.5 The conducting part in contact with cable shall preferably be tinned or silver plated however Nickel plated copper or zinc plated steel shall also be acceptable.

20.6 The terminal blocks shall be of extensible design, multilayer terminal arrangement is not allowed in any junction box (Common MS, Individual MS. IS etc.) . There should be

T echnical Spec ification: GTR Pag\! 24 of 34 CII' NGG /SPECIG 1 R (Rev. No. - 14. Jon 20171 PAGE 27

SECTION·GENERAL TECHNICAL REOUI REM ENTS (GIll)

su fllcient sPdce flt hoth sides of terminals so dlat fel rule number of wires / TU numbers ,]I""e clearly vislhle during wire remova l or insertion.

2U 7 The tennll1al blocks shall haw locki ng . r"mgement to prevent Its escape from the mounting ralls.

20.8 The te rminal hlo' k, ,h,,11 be flilly enllosed Willi removable covers ollransparen l. non· deteriorating type pl.'tir m'Mrial. I nsulanng barners sh.1I be provided belween the lenmnal blocks. Thest" bilrrier; sh;}ll nn! hmdpr llw op~ra(Or fru"l Larrying uu l th .. wir ing without removmg the barriers

20.9 IInle" otherwise specified tetmln,,1 block., shall be suitable fo r connectmg the rollowmg conductors on each Side

20.10

20.tl

201l

20.13

2014

2LO 21.1

b)

All circuits except CT/PT ci rcuits

All CT IPT circlli ts

Minlmum of lwO of 2.5 sq mrn copper nc.lble.

Minimum of 4 nos. or2.5 sq rnm copper ne."ble.

Th~ drrangt:'mt!nlS shall be 10 such a mrlnncr so thaI it IS possible to safely (onnel'l 01

dlsconnt:'l1. termInals on live clrcuI L'i and replace fuse links when the cabInet is Iwe.

Alleast 2U % spare t 'nninab shall be provldeu un each paneljtubicle/bnx and these 'pare temlln.ls shall be uniformlv distributed on alllerminai> rows.

There .shall be ;] mmUllum clearance of 250 mnl between the Fir.st/bullom row of termi" JI block and lhe associated Glbl. gland plate (or outdoo r ground mounted marshalling box and the deam nce belween lWo rows of termlOal blnck, 'hall br " minimum of 150 mm .

The Contractor shall furnish all wire, co nduits ilnd termmals (or tJlf~ necessary interphase eleclrlc.1 tOnneclions (where applicable) as well as berweell phases and common terminal boxes or lontroi cabinets. For eqlJlpments rated for 4UO kV and above Lhe wiring required in these items shall be run In metallic ducts or shleldpd (abies in order to avoid surge overvoltages ei ther transferred lhrough the equIpment or due to transients induced from the EHV circuits.

1\11 IOput and ourput te'lIllnals of each w ntrol cubicle shall be tested for surge Wllh>la nd capahllity In acco ldance with the relevanl lEe Publ ications, in both longitudinal and transverse modes. Th e Contractor shall also provide all necessary filtering. surge protection, interface rrlrlY'S Clnd any other measures nec~s$Clry to achieve an impulse WIthstand level at the c.lble Interfaces o f the eq Uipment.

t.AMPS & SOCKETS

Lamps & Sockets

Aillalll ps shall u.se 0 sockel base as per IS·12SS, except in the tase of Signal lamps

Ali sockets (conveniente ou tlets) sha ll be suitable to accept bOll,S Amp & 15 Amp pin round Standard Indian plug,. They sh,11 be SWitched sorkets WIth shutters.

21.:l Hand Lamp:

21.3

21.3 1

A 240 VOlls. smgle Phase, ,(I H1. At pl ug pOint shall be provided in tbe inlerior 01 each rublde wllh ON·OFF SWitch lor tonneetlo n of hand lam ps.

Switches and Fuses:

Each panel shall be provlded winl n~n'5:s.Jry arrangt!menlS lor n~'celvmg, (l1 o;;tTihuti"~ isolating .Jnd luslng of DC and AC supplies (01 vJriuu:. control. signali ng, IIghnng and space heater (iI'LUlls. The Incommg and sub Circuits shall be separalely proVided Wi th mlntaturr ''In:uitlJJ"~ak~r I SWitch fusc umts. Selection of th e maIn ami Sub-l:lrtuit tus:E'

T L'l·h llll·al S.rc~·llk~Ulf\n (I fR , 1"';1, \l'H I,ll< fR< , 'u.· ~ J,,,,21117 ' PAGE 28

21.3.2

22.0

22.1

Secl:on-3

SECTION-GENERAl. TECHNICAl. REOUIREMENTS (GTRI

ratings shall be such as to ensure selective clearance of sllb ~ circuit faults. Potential circuits for relaying and metering shall be protected by HRC fuses.

All fuses shall be of HRC cartridge type conforming to IS:9228 mounted on plug-in type fuse bases. Miniature circuit breakers with thermal protection and alarm contacts will also be accepted . All accessible live connection to fuse bases shall be adequately shrouded. Fuses shall have operation indicators for indicating blown fuse condition. Fuse carrier base shall have imprints of the fuse rating and voltage.

Bushings, Hollow Column Insulators, Support Insulators:

Bushings shall be manufactured and tested in accordance with IS:2099 & IEe-60137 while hollow column insulators shall be manufactured and tested in accordance with IEC-62155/IS:5621.The support insulators shall be manufactured and tested as per IS:2544/IEC-60168 and IEC-60273. The insulators shall also conform to IEC-60815 as applicable. .

The bidder may also offer composite hollow insulators, conforming to IEC-61462.

22.2 Support insulators, bushings and hollow column insulators shall be manufactured from high quality porcelain. Porcelain used shall be homogeneous, free from laminations, cavities and other flaws or imperfections that might affect the mechanical or dielectric quality and shall be thoroughly vitrified tough and impervious to moisture.

22.3 Glazing of the porcelain shall be uniform brown in colour, free from blisters, burrs and similar other defects.

22.4 Support insulators/bushings/ hollow column insulators shall be designed to have ample insula don, mechanical strength and rigidity for the conditions under which they will be used.

22.5 When operating at normal rated voltage there shall be no electric discharge between the conductors and bushing which would cause corrosion or injury to conductors, insulators or supports by the formation of substances produced by chemical action. No radio interference shall be caused by the insulators/bushings when operadng at the normal rated voltage.

22.6 Bushing porcelain shall be robust and capable of withstanding the internal pressures likely to occur in service. The design and location of clamps and the shape and the strength of the porcelain flange securing the bushing to the tank shall be such that there is no risk of fracture. All portions of the assembled porcelain enclosures and supports other than gaskets, which may in any way be exposed to the atmosphere shall be composed of completely non hygroscopic material such as metal or glazed porcelain.

22.7 All iron parts shall be hot dip galvanised and all joints shall be air tighL Surface of joints shall be trued up porcelain parts by grinding and metal parts by machining. Insulator/bushing design shall be such as to ensure a uniform compressive pressure on the joints.

22.8 Tests

In bushing, hollow column insulators and support insulators shall conform to type tests and shall be subjected to roudne tests in accordance with IS:2099 & IS:2544 & 15:562l.

N4 R'FV-t""ting-t>~j.n-+ftsulators (ffi~areQi

~ be done at site olHtl+-pereeIai~Of3 (i.e. btlsliings, liollt>w-imd solia instllator3, oi .. iftstllatols ete.) ffil SlIM!8tiOft(S) in eeaswl a .. . ~ else .. l!e """'The-eo,t-of-R~tit>g-Shstl be aeemed to be iHe1tlded in the-respeetive

Tcc-hlllcal Sp~e i fitall oJl : GTR Pa ge- 26 of 34 C1ENGGiSPECIGTR (Rev. No :-14, J,,,201 7) PAGE 29

SECTION-GENEMI. TECHNICAL REOUIREMENTS (GIRl

"'ltti"",en~fitems' .... efton·ffl'lt TIt.Heelmit'tti do-ltIlh-6f -R-T'" 'eo1\'ttng--ilHlttoffieti in Antteltll re-I+.

23.0 MOTORS Mow", ,hall be "SqUIrrel C,ge" three phose Imluculln 111010r, 01 sulficienl size lopabl" 01 satisfactory operation for the applicalioll and duty as reqUIred fo[' the dnvrn eqUipment and .hall be subjected to routine tests as per applicable stalle"rd, Tit.' 1110tor, shall b. o( approved makt·

23.\ Enclosures

il) Motors Lo be inslaJled outdoor WilhoUl enclusure shilll have hos!;' proof end os un: equlv"J.nt to IP-55 <lS per IS; 4691 For mOlors tu b. installed illdool i e. inside" box. the motor enclosure. shall be d ust proof "quivalent to W44 as per IS: 4691..

b) Two independent earth ing paints shall be provided on opp"site sides 01 the molor lor bolted (onneltion of earthing cOIlc.luttor

cJ Motors shall have drain plugs so located that they WIll drain water [csultlng IroOl condensation or other callses from all porkets in the mOlor casing.

d) Motors welghmg more than 25 Kg. sh.1I he prOVIded wllh eyebalL" lugs or other mea", to faclllWte Itr~ng.

23.2 Operational Fearnres

aJ Contmuous mottlr rating (name plate ral lng) shall be ar leas t ten (10) percent above lhe maxlmum load demand of the drivpn equIpment at cit-sign duty poinL and lhl! motor shall not be- over loaded at any oper.:Jtmg pOint of driven equipment that will 1'1,. In service.

b) Motor shall be capabl e at giving rated outpu t without reduction in the expected hfe span when operated continuously in the syst(!nl havinA the p(lrti(ulars as given in Clause 15.0 ofthis Sedion .

23.3 Starting Requirements;

al All I",lucllan molors shall be suitable for full vn llage dlrpet·on-line S\.1rting. These shall be capable of starting and accelerabng to the rated speed along\vllh the driven equIpment wlthoUl exceeding lhe aceepL..ble winding tem perature even when (he sup ply voltage d rops down to 80% of the raled voltage.

bl MOlun shaJJ be capable ofwllhsl:"nding the electrodynamIC stresses and Iwallng itllpo,ed if tl is ,tatted at a vullage of 110% of lhe "'ted value.

c) The locked rOlOr current sh~1I not exceed six (61 titnes the rJted lull load mrrelll for all motors. subject to loleranee as given in 15:325.

d) Motors when started with the d riven equipm ent 'm!'osi ng tuil starting torque un tler (he supply voltage conditions speclfted under Clause 15.0 shall be capable of withsta nding atleasl two successive SWrlS from cold condition LlL room tt"mperature and one start from hOl co ndition without injurious heating 01 winding. The motors shall a lso be , "it.ble for three equally SP[ ead stans per hour under the above relerred supply condition.

e) The locked rotor wlthslaad lltne under hOI condttlon at 110% of ",ted vnltage shiJll be morE" (han starting time wilh lhe drlve l1 equipment or mmllnum pemllssi hle voltage by at le;';lst [\"'0 sel'ond!J or 15% 01 the ilL:CeJeraUng lime whichever IS greater. In case .1 is not poss ible to meet the above requirelnt:lnt,the Bidder shall offer centrifugal type speed switch mounted on the motor shal t which shall retnain riosed lor ,peed lower than 20% and 0Jlpn for speeds .hOVl-

Ilx-hm'Ill ~r1('t'lli\.'lJII\'n " n( t 1'(,(, ,Pl' (.THtR" :\".·t4 .1.111 "11171 PAGE 30

Seclion-3

SECTION-GENERAL TECHNICAl REOlllREMENTS (GTRl

20% of th e rated speed. The speed switch shall be capable of withstanding 120% of the rated speed in either direction of rotation.

23_4 Running Requirements:

a) Th e maximum permissible temperature rise over the ambient temperature of 50 degree C shall be within the limits specified in 15:325 (fo r 3-phase induction motors) after adjustment due to increased ambient temperature specified.

b) The double amplitude of motor vibration shall be within the limits specified in IS: 4729. Vibration s hall also be within the limits speci fied by the relevant standard for the driven equipment when measured at the motor bearings.

c) All the induction motors shall be capable of running at 80% of rated voltage for a period of 5 minutes with rated load commencing from hot condition.

23.5 TESTING AND COMMISSIONING

24.

24.1

An indicative list of tests is given below. Contractor shall perform any additional test based on specialities of the items as per the field Q.P./lnsrructions of the eqUipment Contractor or Employer without any extra cost to the Employer. The Contractor shall arrange all instruments required for conducdng these tests alongwith calibration certificates and shall furnish the list of instrum ents to the Employer for approval.

(a) Insulation resistance.

(b) Phase sequence and proper direction of rotation.

(c) Any motor operating incorrectly sha ll be checked to determine the cause and the conditions corrected.

Technical Spcl:)fil':llion: GTR C/ENGGfSPECGTR (Rev . No.:- 14 , Jan 20 17) PAGE 31

SOOltlfl ]

SECTloN·GENERAI. TE CHNICAL REoUlREMENTS (GJRI

ANNEXIIRh\

CORONA AND RADIO INTERFERENCE VOLTAGE (RIV) TEST

1. General

Unless otherwise stip ulated, a ll equipment together wl lh its associ3ted con nector.s , where applicable, shall be tested fo r external corona (fo r 400kV & Jbove) both by observi ng the vo ltage level for the extinclioll of visible corolla under fa lhng powe ,. frequency vol tage and by measurement of raaio inte l'fere ncc voltage (RIV ) for 132kV <.I nd above.

2, Tesllevels:

TllP f e~t voltage levels for ['nea~ u re ll1en l ul externa l RI V amI for (oro lid ext.mctlUli vollOlge ;:lft' listc r! unrler tht!' I I!h-VdnL rla uslfs t)llhl' ~peclfu.:allml.

3. rest Methods for RIV,

3.1 RIV rests !lo ll all be l11ade au.:on.l ing to measu ring ci rcui t iJS per InternationJ I Spedal-Com mittee on H.. dio Intcrferenn, (CISP R) Pu blication 16.1 (1993) P.rl . J. Th e measu ring c ircuit sha ll prefe rahly he tu nC'd to frequency with] 0% 01 O.S Mhz but o ther Ireq uencies in the .,nge of 0.5 14 Hz to 2 MHz may be used, the mea"J rin ~ freq uency being recorded. The results sh.1I be in microvolts.

3.2 Alternalivt"}y, RI V lests sha ll be earned out m accordance with relevan L IEL of respecllve equ ipme nt or NEMA slandard Publica tIOn No. 107-1904.

:Li III nU'dSu remen l of, RIV, Lempor.HY ~ddltlO nal external co rona "h lc lding lTlay lw prOVided In measurements 01 IlI V only standard h tll n~. Df Iden tICal lype su pplied wah the equipmrnt and a simulatio n 01 th e c:onnect101ti as used In the actual InslJ.l lalr on Will be permitted In the vIcinity wuhln 1.5 meters of terminals.

3.4 Am bient nOise shall b~" mr asHred be fo n~ tj l1 d alter each ser ies of tesL" to ens ure that lhl!re 1!Ii no vanatlOn In ambwnt norse level. If variat io n is preslJlll. lht:' 10wesL •• mblent no i s~ levt! l will lorm ba.sls for t he measuremenL'i. RIV Irvrls shall be m(?,(1sured at Increasing a nd decreaSi ng voltages 01 85%, 100%, and 110% of the speCified RIV test volt.'ge for all equ ipment unless o the rwise speCIfied The speCIfied RIV lest vo ltage for 765kV, 4 00 kV, 220 KV " lISted In t he deta iled specificauon logether Wl lh ma.:<'m um pern,b>lble RIV level In microvolts

3.5 The metenng Instrume nts '5h r:ll ll be- as pel' CISPR recorn lnendatlon or eqUIValent device so long as It has been used by a ther testing au thon tics.

j,6 The RIV measurement may he made with a noise meter. A cttllbratiun procedure of the rreq uency to which no ise mete r sha ll be tu ned shall esta blish the ratio o f volt.lge at the high Voltage te rminal lo voltage r~ild by noise meter

4 . Test MeUlOds for Visible Cor on a

The purpose of Ihpi IPc;t is tn drtt!'m1 ine the (orona extmClro n volt£lge nr apparatus, co nnector.; etc. The test shall he GlITied OU' in rh l' same 1I13unel a~ RI V tesl tiescn beu ahovr wlf h l h~ eoxceptlon lha t. RIV me~sU re11lenl'i arc not rcqlll red during test amj a sea rch tcchn itjul' shall be used nt:'d r t.he onset and extinctIOn voltage, when the test voltage IS r;rnsed an d lowe red to delermi ne theJr prl;!C I ~e vil lues. The tp.s t volt.lge shall bt:' r3r.seU to 110% of specified j:'nrona eXtl n l llon \lol tagl! i.t ml l11aJn tOl ined lhe re for flvr mInutes. In case t.:oroni:1 jnception d oes not takl? place a t 110%, test shall be s loppetl, o th('nvls~ {es t shall h~ ronUnued and the vol t.age Wi ll t hen be u('crtlased ~ I {)w l y until

I ",LhIlIl:J I Src~ll1t:~tl ll'11 l i I It ,IM1< . SPL((I I RIRe \ '\1 ;.1. 101 11 ' 11

PAGE 32

Seclion-3

SECTlQN-GENERALTECHNICAL REQUIREMENTS (GIRl

ANNEXIIBE-A

all visible corona disappears. The procedure shall be repeated at least 4 times with corona inception and extinction voltage recorded each time. The corona extinction voltage for purposes of determining compliance with the specification shall be the lowest of the four values at which visible corona (negative or positive polarity) disappears. Photographs with laboratory in complete darkness shall be taken under test conditions. at all vol tage steps i.e. 85%. 100%. and 110%. Additional photographs shall be taken at corona inception and extinction voltages. At least two views shall be photographed in each case using Panchromatic film with an ASA daylight rating of 400 with an exposure of two minutes at a lens aperture of f/5.6 or equivalent. The photographic process shall be such that prints are available for inspection and comparison with conditions as determined from direct observation. Photographs shall be taken from above and below the level of connector so as to show corona on bushing. insulators and all parts of energised connectors. The photographs shall be framed such that test object essentially, fills the frame with no cut·off.

For recording purpose, modern devices utilizing UV recording methods such as image intensifier may also be used.

4.1 The test shall be recorded on each photograph. Additional photograph shall be taken from each camera position with lights on to show the relative position oftest object to facilitate precise corona location from the photographic evidence.

4.2 In addition to photographS of the test object preferably four photographs shall be taken of the complete test assembly show ing relative pOSitions of all the test equipment and test objects. These four photographs shall be taken from four points equally spaced around the test arrangement to show its features from all sides. Drawings of the laboratory and test set up locations shall be provided to indicate camera positions and angles. The precise location of camera sha ll be approved by Employer' s inspector, after determining the best camera locations by trial energisation of test object at a voltage which results in corona.

4.3 The test to determine the visible corona extinction voltage need not be carried out Simultaneously with test to determine RIV levels.

4.4 However, both test shall be carried ou t with th e same test set up and as little time duration between tests as pOSSible. No modification on treatment of the sample between tests will be allowed. Simultaneous RIV and visible corona extinction voltage testing may be permitted at the discretion of Employer's inspector if, in his opinion, it will not prejudice other test.

5. Test Records:

In addition to the information previously mentioned and the requirements specified as per CISPR or N EMA 107-1964 the following data shall be included in test report:

a) Background noise before and after test.

b) Detailed procedure of application of test voltage.

c) Measurements of RIV levels expressed in micro vol ts at each level.

d) Results and observations with regard to location and type of interference sources detected at each step.

e) Test voltage shall be recorded when measured RIV passes through 100 microvolts in each direction.

f) Onset and extinction of visual corona for each of the four tests required shall be recorded.

T echmcal Spcl:ific;1!ion: GTR C/ENGG/SPEC/GTB (Bev. No:-14. Jan' 17)

PAGE 33

Page 2 01"2 (Ann, .. :xurl! -A)

Soc linn ~

HCIION-GENERAI. TECHNICAL RWUlBhMENTS (GTR)

ANtiEX!!RF-U

SEISM IC WITHSTAND TEST I'ROCE!)URE

The seismic wi ths tandi ng test on th~ complete eqUIpment rfor 132kV and abovt') shall be carrieu out alongwah supporti ng st ructure.

The' Oid der shall ;:trrdnge ta t ransport the stnlclurl' It'om hiS Co ntral lor's prem ises/ POWE RGR ID s ites lor the purpose of se is mic withstand tes t on ly.

The seismiC level spf'clfi r d shall be applied at the base of the structure. '111(1 ::t('releromelers . hall be pnJVIded ot the Te rm lnal !'ad ol lhe equipment and ony other poin t as ag ree,1 by the Employer. The:! seism ic test shall he carrI ed out in ~tll pOSSIble com binatio ns of the equl nm(.'n l. Tht' :s~lsm l r lest procedu re ')h;1I1 h(' furni.:; hed for approval ol lhe Emp loye r.

The frequoncy rMlgr fnr the earthquake . peetro ' hall b." ~ per II;C 6U7-300

I !.!d11lh:.l 1 -Sp\,. ..... Hh.:.lllon ( J TR (. P";( l l,~I'H l . TH(Rl"' :'\; ll. 1..1 . J.u(] 7 ]

PAGE 34

Soolon 3

SECTION-GENERAl. TECHNICAL REOIJlREMENTS (GIRl

ANN I'XIIRF-C

LIST OF GENERAL STANDARDS AND CODES

CODES TITLE -- India Electricity Rules

-- Indian Electricity Act -- Ind ia n Electricity (Supply) Act -- Indian Factories Act

IS-5 Colors for Ready Mixed Paints and Enamels IS-335 New Insulatin g Oils IS-61 7 Aluminium and Aluminium Alloy Ingots and Castings for General

Engineering Purposes

IS-1448 (P1 to P 145) Methods of Test for Petroleum and its Products IS-2071 (pt to P3) Methods of High Voltage Testing IS-12063 Classification of degrees of protection provided by enclosu res of

electrical equipment

IS-2165 ; P1:1997, Insulation Coordination P2:1983 IS-3043 Code of Pract ice for Earthing IS-6103 Method of Test fo r Specific Resistance (Resistiyity) o f Electrical

Insulating Liqu ids IS-6104 Method of Test for Interfacial Tension of Oil against Water by the

Ring Method IS-6262 Method of test for Power factor & Dielectric Constant of Electrical

Insulating Liquids IS-6792 Method for determ ination of electric strength of insulating oils IS-5578 Guide for marking of insulated conductors

IS-1135 3 Guide for uniform system of marking & identification of conductors & apparatus terminals.

IS-82 63 Methods for Radio Interference Test on High yoltage Insulators IS-9224 (Part 1,2&4) Low Voltage Fuses IEC-60060 (Part 1 to P4j High Voltage Test Techniques IEC 60068 Environmental Test

IEC-60117 Graphical Symbols IEC-60156 Method for the Determination of the Electrical Strength of

Insulation Oils

IEC-60270 Partial Discharge Measurements

IEC-60376 SpeCification and Acceptance of New Sulphur HexaOoride I£C-604 37 Radio Interference Test on High Voltage Insulators IEC-60 507 Artificial Pollution Tests on High Voltage Insulators to be used on

AC Systems IEC-62271-1 Common Specification for High Voltage Sw itchgear & Control

gear Standards IEC-60815 Guide for the Selection of Insulators in respect of Polluted

Conditions

Technical Specification: GTR C/ENGG!SPI:O GTR (Rev. No.:-14, Jan 'l J)

PAGE 35 Page I of23 (Anlloxurc-l)

SECTION-GENERAl, TEC HNICAl , REOIIIREMENTS (GTR)

ANNEXlm E-t,;

- -CODES TITLE IFC·60865 (PI & PI) ---.1 Sho rt Cor~mt Current · Cilkulatlon of effects ANS I·CI/NF!'A 70 Notional E1ectncal Cod e -ANSI·C37.90A GUide for Surge Withstand C.p"hility (SWr.) T .. ts ANSI·C63 .Zl, C63.3 Specification for E l ectroma~lIetic NOISe "nd t10ld Strength

Instrumenta tion 10 KHz tn J GHZ -

Cl64ANSI ·C6H .I Tc("hOlquf?"S"t for Dielccrnc Te..r;;;ts ANSI·r76.1 /EEE2 J Standard General f{cquircmcnlS and Tcq Procedun~ for Outdoor

Apparatus Bush ings --- -ANSISI ·4 Spenficatlon for Snund I.evel Meter-ANSI ·Y32·2/C:l37,Z llrawlng Symbols ANSI ·Z~5.11 Gr"y Fi nishes for Industria l Apparatus and L-:q'"pmenl No. 6]

Light Gray -NEMA-I07T Methods of Measu rement< of RIV of High Vohagc Apparatus ---NEMA·ICS·II C;pneral Standard, for Indu<trinl Control and Systems "an ICSI-

109 I CISPR-l - SpeClficanon for CISPR Rad IO Interference Measurmg Apparatus

for Lhe freq uency range O. ] 5 M Hz to 30 M H7 CSA-Z299.1-1978h Quahty Assur.mce Program ReqUi remenL"i CSA-Z299.2· J 979b Quali ty Control Program Requirements - - Quality Venne.tlon Pr ogram Requirements -- -CSA·Z2993-1979h -CSA·Z299.4·1979h Inspection Program Requirements TRAIIISFO RM ERS AIIID REACTORS IS.JO028 (Part 28< 3) Code of practice for selectIOn, ,"stall.tion III mallllenance of

Transformers (P I : 1993), [1'2: 1991), (P3 1991) IS·20Z6 (PI to P4) Power Transfo rmers --IS-334·7 [part I to Pan 8) Dimensions for Po rcelain transrormcr Bushlllgs ror USf' in lightly

polluted atmospheres 1$·3639 Flttmgs and Acct!ssortes for Power Transformers 15-6000 GUIde for LO<Jdmg of o il immersed Transformers

-=::-. IEC-60076 (I'art J to 5) Power Tf"(Irlsformers IEC·60214 On ·Load Tap·Changers !Ec'·60289 Reactors

IEC· 60354 loadIng GU ide for Oil - Immersed power transfonners IEC·60076· 1O Determination or Transformer and Rei.lto1.or Sound Level!!. ANSI·C571280 General requtrements for Distribution, Power "tid Regulating

Transformers ANS I-C571290 Te.>l Cod~ for Distribution, Powe, <.nd RegulaLJon Transtormers j ~

ANS I·C5716 Termll1ology & Test Code for Current limiting Reactors ANS I·C5721

I -

I Requlremenb, TermlDology and Te:!)l Code for Shunt Reactors Rated Over 500 KVA

ANSIC5792 Gllide ror Loading Oil-Immersed PowcrTra: r l~rormt:'rs uplO and I in<" ludlng 100 MVA w ith 55 deg C or65 deg C Winding Rise

r~,; hnh".l1 .... '~ .. lrh:UHllli I ... TR f I"!\:{ i(, .... PU ti l H t R~' \ ~ ~I 14 .lan °(7)

PAGE 36

SecLon-3


ANN EX URE-C

CODES TITLE ANSI-CG,lEE E-4 Standard Techniques for High Voltage Testing IEC 60076 Power transfonners

IEC 60076-1 Part 1: General IEC 60076-2 Part 2: Temperature rise

IEC 60076-3 Part 3: Insulation levels, dielectric tests and external clearances in air

IEC 60076-4 Part 4: Guide to the lightning impulse and swi tching impulse testing - Power trans formers and reactors

lEe 60076-3-1 Part 3-1 : Insu lation Levels and Dielectric Tests -External Clearances in Air

lEe 60076-5 Part 5: Ability to withstand short circuit lEe 60076-6 Parot 6; Reactors

lEe 60076-7 Part 7: Loading guide for oil-immersed power transformers

lEe 60076-0 Pal1 8: Application guide lEe 60076-10 Part 10: Determination of sound levels

IEC 60076-10- 1 Part 10-1: Determination of sound levels - Application gUide lEe 60076-11 Part 11: Dry-type transformers IEC 60076-12 Part 12: Loadi ng guide for dry-type power transformers IEC 60076-13 Part 13: Self-protected liquid-filled transformers lEe 60076-14 Part 14: Design and application of liquid-immersed power

transformers using high-temperature insulation materials

lEe 60076-15 Part 15: Gas-filled power transformers

lEe 60076-16 Part 16: Transformers for wind turbine applications

lEe 60076-18 Part 18: Measurement of frequency response

IEC 60076-19 Part 19: Rules for the determination of uncertainties in the measurement of lo sses in power transformers and reactors

lEe 60076-21 Part 21: Standard requirements, tenninalagy, and test code for step-voltage regulators

lEe 60044, 8S 3938 Current transformers

lEe 60050 International Electrotechnical Vocabulary

lEe 60050[421) International Electrotechnical vocabulary- Chapter 421 : Power Transformers and Reactors

lEe 60060 High Voltage test techniques lEe 60060-1 General definition s and test requirements

lEe 60060-2 Measur ing systems lEe 60071 Insulation co-ordination

lEe 60071-1 Part 1: Definitions , principles and rules

lEe 60071-2 Part 2 : Application guide lEe 6013 7 Bushing for alternating voltage above 1000V

IEC 60214 On-Load Tap changers lEe 255-21-3 Relays vibration

Technical Speci fication: GTR C/~NGG/SPEC fGTR (Rev. 1\0. :- 14. Jan' 17)

PAGE 37 Page 3 urn (AI1I1C\ure-C)

SECTION-GENERAL TECHNICAL REOUIREMEN1S (GTRl

i CODES - -TITLE

-IEC (,02711 Partial dlsdulr~c mcasurCn1rn lS

- --lEe 611296 SpeCificanon for Unused Milleral 001 fOi Transformers a lld

Switchgear -SupervISion and Ma intonancc gUide for MII1,'r"l l nsulat1n~ (lil ill IEC 60422

Elect.,,,,1 EqUipment I IEC 60475 Method of Sampling LiqUid dielectrics lEe 60529 Cla'Sificallon o( Degrees of Protection pi oV1ded by Enclusures

IEC 60542 Appl icallon Guide fo, On-Load Tap-Changers lEe noSfi7 GuiM for the Sampli ng of Gases and 01 011 (rom Oil-fi lled

F.lectncalliql"pmcnl (or the Analysis "I F,w dnd Dissolved G,lses IEC b0651 Sound l.evel Metcl'S

lEe 610113 D1gltal H.,ard"rs and SoftwdJ"e for IJi gh Volt"~.llIlpub" testing -lEe 6101131 P.art 1 Requirements for digita l recorde rs In lugh voltage Impu lse

tests lEU, 1 083-2 Part 2 : Evaludllon 01 soltware used for the delenmnilUon 01 the

paramctrrs of impulse wdveforms CISPR 16 Sp('citication ror radio disturbance and immUni ty measuring

lI pparntus

CISPR 16- [ RadIO distul""ban,l' .md immunity nu~asul'inJ.! apparatli:'i

CISPR-18 Radio In terference Ch..-acteriSIICS o( Powe. Lines and I"gil Vol tllg~ Equ ipment

1$0 '100 1 Quali ty system-Model (or Qua li ty Assuranre In i1c"gn /development -

Clgre Publication 202 Gll idehnes fO I conducting deSign re .... lews fol"" transformers 1 00 M VA and In kV and above. AU~US I 2002-Clgre Working Group 12.22

I WG 12-15 GU ide for Customers SpeCifical10 ns for Tra ns(orme" 100 MVA

and 123 kV and above WG 12 19 Short Cln:ult Perfonnancc orTranSrOnll£'rS.

JjS4360 SpeCification For wcldablr srnlctu ral steel

IlS-5135 SpeCification for arc welJ lng of carbon and t.arbDn manganese steels

IlS-5S00 SpeCification for unfi red fus ion welded pressure vesse ls 15-3610 Spec.fiGltion (or phosph. re t",atmenl o( iron & steel fOI

protecuon against corrosiDn -.-IS ·6005 Code of p ractice for phosphating of Iron and Steel --ISO·SSOI Prep'H'dIIOn ofsu~cI surface hf'forr il pphcJtton of PJ1nts aIld

related product

lEC-bO'i')q - -Mmer.ll 011 Impregnated clcctnral equipment in servIce - gUIde

, to the interpretation of dissolved and frrc gasC's analys is , IS· I 0593 Method ofevaluallng tho analysis a f g"«" il1 ulllilletlelectrltJI

t:!qulpmcnl In service - -

15-2099 Bushings for alternatmg voltages ahovc 1 noo volts - - -

lC' I 'hnt~·.1 1 \r .... ·i.lli~J.lli)11 I.iT R I ('( It I "WU ' '- i ' R I RIO' 'I .. I"; J.m "- I

PAGE 38

Seclian-3

SECTION-GENERAL TECHNICAL REOUIREMENTS (GTR)

ANNFXIIRE-C

CODES TITLE 15-3347 Part I to 8 Dimension for porcelain transformer bushing DIN-42530 Bushing up to 1000kV from 250A-5000A for liquid filled

Transformer 15-202 6 Pa rt 1 to 5 Power transformer 15-4691 Degrees of protection provided by enclosure for rotating

electrical machinery IEC-60034-5 Degrees of protection provided by integral design of rotating

electrica l machine s(IP Code) classification 15:325/ IEC -60034 Performance of cooling fan / oil pump motor 15-13947 part 1 to 5 Specification for low voltage sWitchgear and control gear 15:3400 Methods of test for vulcanised rubber 1$:7016 part 1 to 14 Methods of test for coated and treated fabrics 15:803 Code of practice for design, fabrication and erection of vertical

mild steel cylindrical welded oil storage tanks. 15:3637 Gas operated Relays 15:335 New Insulating oils - Specification IEC-62271-203 Gas insulated metal enclosed switchgear for rated voltage above

52kV IEC-61639 Direct connection between power transformers and gas-

insulated metal enclosed switchgear for rated voltages of 52.5 kV and above.

15:3400/ 05 903 / Air cell (Flexible Air Separator) 15:7 016 IEC 60529 / IP: 55 Degree of protection for cooler control cabinet, MOLG, Cooling

fan, oil pump, Buchholz Relay IEC 605 29 / IP : 56 Degree of protection for Pressure Relief Device IEC 60529 / IP: 43 Degree of protection for Remote tap Changer cubicle (RTCC)

CIRCUIT BREAKERS IEC-62271-100 High-voltage switchgear and control gear- Part 100: Alternating

current circuit-breakers IEC-62271-101 High-voltage switchgear and control gear - Part 101: Synthetic

testing IEC-62155 Hollow pressurized and unpressurized ceramic and glass

insulators for use in electrical equipment with rated voltages greater than 1000 V

IEC-62271-110 High-voltage switchgear and control gear - Part 110: Inductive load switching

IEC-6227 1-109 High-voltage switchgear and control gear - Part 110: Inductive load switching

CURRENT TRANSFORMERS, VOLTAGE TRANSFORMERS AND COUPLING CAPACITOR VOLTAGE TRANSFORMERS 15-2705· (PI to P4) Current Transformers

Technical Spccifjca lion ~ UTR CiEKGG ,!SPEClGTR (Rev. No.: · 14. Jan' 17)

PAGE 39 Pagt: 5 of 23 (AnIl I!XUrc·(')

SOd-oo-J

SECTION-GLNEIlAl] EC!!N ICAI. IlEO!lIREMENTS (G I Rl

I CODES IS:11%·(PllUP4) 15-4379 IE(-61869 [p"rt · ' ) IE(-61869 (Part.::-:2):--

II;C-6 1869 [Part-3)

IECn]869 (ParH)

IE<:-61069 (Part·S)

TITLE -;--:::-----;----

Vnlt.aR,c.o Transrormers

ANNCX!lRE·(.

Identification o( the Contents o( I ndustrlal Gas Cylinder-1"5lrumenl transformers ~ Pan I; G(.'ner.JI requirements inslnlment tr.msfonncrs· Pan l; AdthLlonal requirements ror run"enl transformers II1"'u ument transformers· Part 3- AdtllW'llla l teqlllrements for mdurtivl;' Ytlh,ilge transflJrmers

--~~--~------~--~ Inc; lrullIenllrans!urmers - Pnrl 4~ Addllit)nal Il!qum.mlcl1l5 for rombined lransforme rs Inl\trumL'nt tr • .In!tlormers - Part 5: Additlnnal requirements tOT capaCi tor v(] tta~e tr,lnsform~ rs

~~---:-:-----l-:-IE(-61869 [Part-6) lostrument transformers - Part 6: Add'tion.1 gener,,1

requirements for low·power instrument lransforlll('rs ~~~---+~ --~------~

1£(-61869 (Pa rt·q) I n,trumen'·tran,fonners . Part g. D l gJta ll nterf.r~ (0 ' In,trument lrdnsformers

1-:-:1 ~-:C=-.-::6"'1-=8-::6-::9-:[-::r-a-rt--:-1 "'O"'Z):--+I:-n-s-u--u-m-e-n- Itco-n-s""form-c-r-s-.-'p=-a-rt--:l-::OC:2:-: -=Ferroresono ncp "SCIlla tio ns

mC-6L069 I Port·t03)

BUSHING IS-209<J IE(·h0137

SURGE ARRESTERS IS·]070 [I'ART2)

~OO99-4 --=-, 1£(-60099-5 ANSI ·C62.1

NEMA·I.A I

,

in substations with indu(:tive voltage lran~rormer:s Instrumenl lJLInsformC' rs - Thr uw 01 inslrumt!nt trlln5former~ for rower qU3111y meOJsuremclll ------Buslll llgS lor Alternatmg V oltagps abuve IOOOV

rnati ng Voltages Insulated Bus hings for Alte above lOOOV

-

Lightni ng arresters ror 31te rnatmg current system.s : Metal o)(ldC"

gaps li ghtning arrestors without Metal aXlde surge arrestors . w'tholJl gaps Selection and appJ Icallon r

I IEE Sta ndards for S A for A Surge ArrcSlt!1"S

ecommrndation C Power Cirtull~

CUBICLES AND PANELS & OTHER RELATED EQUIPM ENTS IS 722. 15-1218 15-3231. 3231 ( P-3) 15:5039 1E(-60068.2.2 -IEC-60S29 IEC-60947+1 IE(-6109S

IEC-60H9 (Pl & 2) ANSI-C37.20 ANSI·(37.50

Il"C'hm\.":1I ~JlL'~lfi'j)1J'Hl' t I I ~

Eleclncal relays fo r power system Protection DIStributed p,lIars for Volt. ges not Excec>dlng 1000 Volts 8a~1c t!' lw lronrnc-ntal te~tin g procedu res Pan 2: Test 8 Dry heat

ded byenclosllres Degree of Protection provl Low vol tage s-wltchgear an d control gear Electromechan ical (o ntilct or:o; for household and similar purpo!\e... ... Low Vnlt"gc Switchgea r an d COni rol gear assembhc:i Switchgear Assemblies. Inc: IlJd ing met.:l l enclosed bus

-;:-----j olta~e AlternaUng Current Power

-:. rest Prol.-'~dures for Low V

t I ~(j(j ""'It t ir l~jK\!'," '\11 I-thai"!';' PAGE 40

Seclion-3

SECTION-GENERAL TECHNICAL REOUIREMENTS CGTRJ

AN NEXURE-(

-I

CODES TITLE -

Ci rcu it Breakers ANSI-C39 Electric Measuring instrument ~:C83 ComponenL<; for Electric Equipment

-~'

IS: 8623: (Part I to 3) Specification for Switchgear & Control Assemblies NEMA-AB Moulded Case Circuit and Systems NEMA-CS Industrial Controls and Systems NEMA-PB-l Panel Boards NEMA-SG-5 Low voltage Power Circuit breakers NEMA- SG-3 Power Switchgear Assemblies NEMA-SG-6 Power switching Equipment NEMA- SE-3 Moto r Co ntrol Centers 1248 (PI to P9) Direct acting indicating analogue electrical measuring

instruments & their accessories Disconnecting switches

IEC-62271-102 High-voltage switchgear and control gear - Part 102: Alternating current disconnectors and earthing switches

IEC-60265 (Part 1 & 2) High Voltage switches ANSI-C37.32 Schedule of preferred Ratings, Manufacturing Specifications and

Application Guide for high voltage Air Switches, Bus supports and switch accessories

ANSI-C37,34 Test Code for high voltage air s witches NEMA-SG6 Power switching equipment PLCC and line traps IS-8792 Line traps for AC power system

IS-8793 Methods oftesL<; for line traps

IS-8997 Coupling devices for PLC systems IS-8990 Methods of test for coupling devices for PLC systems

IEC-60353 Line traps for AC. power systems IEC-60481 Coupling Devices for power line carrier systems

IEC-60495 Single sideboard power line ca rrier term inals -

IEC-60683 Planning of (single Side-Band) power line carrier systems ClGRE Teleprotection report by Committee 34 & 35 (IGRE Guide on power line carrier 1979

CCIR International Radio Consultative Committee

CCITT International Telegraph & Telephone Consultative Committee EIA Electric Industries Association

Protection and control equipment

IEC-60051: (PI to P9) Recommendations for Direct Acting indicating analogue electrical measuring instruments and their accessories

IEC-60255 (Part 1 to 23) Electrical relays IEC-60 29 7 (PI to P4) Dimensions of mechanical struct ures of the 482.6mm (19 inches)

Tec hnical Spcci ficfl lion; GlR C/[ NG Ci ISPEC 'CJTR (Rev. No :-14. Jan' 17)

PAGE 41 Pag!..' 7 ofn (Annr xure-C)

SECTION-GENERAL TECHNI<J\L REOlJlII~M ENTS (GTR)

ANNEXIIHF-('

TITLE I COPES

IEC-60359 senes ____ ~~--~--------~--~~~-----lixprcss ion of thr prrfollllance nt electrical & electronic measu ring e.::q.::"::, p.::m.::o~n.::t __ ,,-____ -;-____________________ ___ S b I f AI C EI IEC-60387 ym n S or tcrniltlng- url·~nl ectncuy meLers

I IEC-60447 - -----Man madllne Inte l-face (MMI] - Ac'",,'ong pnnClples IEC-6052 I Class 0.5, 1 ami 2. a lternaling current w:alt hour metres _

IEC-60547 Modular pl ug-In Una and !:ililndard 19-1nch rack mounting unl l based on NI M Stdndard (for electronic nuclear instruments) -ANSI-8t St rpw thrt!ads

ANSI- B IB !lol'" and Nuts ANSI-C37.1 RoL,ys, Sl.t,"" Cuntrols etc

-----ANSI-C37.2 Manual and automallc statIon control, supervIsory and

Jssociated telemetering equipmen t

ANSI-C37 .Z Relays ano n~ l ay 'yslems ilssooated wi th electriC pnwcr appa,atus

ANSI-C39,1 Requlrrmrnts fO I electrical analog mdlGltlng Instrum ents

MOTORS 15-J2S Three phflse Inductiun molors

15-4691 Dewe. or pI olecUon provIded by enclosure for rotating electrica l maclHncry

IR·60034 (P1 to PI9;J Rora'lI1g eleclncal machines I EC-Documenl 2 Tll r£l'e phru;e induction motors

---- ---(CentreIIOffice) Motors and Gfnerators:

NEMA-MGI - - -

~ectronic equipment and components

MI L-2 J B, MIL-fl33 Envlron ment.ll 'estlng & MIL-27S0 EC-60068 (P1 to PS) Printed board s I[;C-60326 [P l ID P2) Material and workmanshIp stan da rds 15-1363 [P I to P3) Hexagoo head bolts, screws and nuts or pl-oduct grade C 15-1364 [Pl [ 0 P5) Hexago" head bolts, screws and nuts of producls grades A and B 15-3138 Hexagonal Bolts and Nuts [M42 to M 150) -150-89B Fasteners: Bolts, screws and studs -~M SpeCification and t(ists for matel"lills

~anlps & connectoTS

~S61 Electnc power conn{1'ctors ---N EMA-Cr.l Electric Power conneclors for sub station

NEMA·CU I Con neClors for Use between a luminIUm or aIUmIllUI1I-COpp~r Overhead Condllclors

Bus hardware and Inllulators

IS; 2121 I FIttings for Alunllnum and steel cored AI conductors for overhe<td

1 t'L:lllIILOlI S(1lXllil'.lIHm. til P

t LN(j(j-Sru GIl( 1J(~'\; 'u __ - I·LJ.UI- 17j PAGE 42

Sechon·3

SECTION-GENERAL TECHNICAL REOlllREMENTS IGTR)

ANNEXIIRE-(

CODES TITLE -power lines 15-731 Porcelain insulators for overhead power lines with a nominal

voltage greater than 1000 V

15-2486 (P1 to P4) Insulator fittings for overhead power lines with a nominal voltage greater than 1000 V

IEC-60120 Dimensions of Ball and Socket Coupl ings of string insulator units IEC-60137 Insulated bushings for alternating voltages above 1000 V IEC-60168 Tests on indoor and outdoor post insula to rs of cera mic material

or glass for Systems with Nominal Voltages Greater than 1000 V IEC-62155 Hollow pressurized and un pressurized ceramic and glass

insulators for use in electrical equipment with rated voltages greater than 1 000 V

I£C-60273 Characteristics of indoor and ou tdoor post insulators for systems with nominal voltages greater than lOOOV

IEC-61462 Pressurized and unRpressurized insulator for use in electrical equipment with rated voltage greater than 1000V - Definitions, Test methods, acceptance criteria and design recommendati ons

IEC-60305 Insulators for overhead lines with nominal voltage above 1000VR ceramic or glass insulator units for ac systems Characteristics of String Insulator Units of the cap and pin type

IEC-60372 [198 4) Locking devices for ball and socket couplings of string insulator uni ts : dimensions and tests

IEC-60383 (P1 and P2) Insulators for overhead lines with a nominal voltage above 1000 V

IEC-60433 Characteristics of string insulator units of the long rod type IEC-60471 Dimensions of Clevis and tongue couplings of string insulator

units ANS I-C29 Wet process porcelaIn insula tors ANSI-C29.1 Test methods for electrical power insulators ANSI-C92.2 For insulators, wetRprocess porcelain and toughened glass

suspension type ANSI-C29.8 For wet-process porcelain insulators apparatus, post-type ANSI- G.8 Iron and steel hardware CISPR-7B Recommendations of the CISPR, tolerances of form and of

Position, Part 1 ASTM A-153 Zinc Coating (Hot-Dip) on iron and steel hardware

Strain and rigid bus-conductor 15-2678 Dimensions & tolerances for Wrought Aluminum and Aluminum

Alloys drawn round tube R ____ IS-5082 Wrought Aluminum and Aluminum Allay Bars. Rods, Tubes and

Sections for Electrical purposes ASTM-B 230-82 Aluminum 1350 H 19 Wire for electrical purposes

T('c hnlc~1 SptTl fi cal ion: GTR ClE NGGISP bClGTIl (Rev. No :-14. Jan'17)

PAGE 43 PilgC 9 0[23 (Anncxure-C)

SECTlON-GENf,HAI. TECIlNICAI, HEOUmEMENTS (G riO

,'NNFXIIRE- "

CODES T inE ---:-::=:::--

ASTM-B 231,81 C""centrlc ' IdY' '[hInded, aluminum 1350 comJuctor, ASTM·B 221 AlulIllnum . Alloy ~xtruded bar. road, wire, shape =----+-:-;----, ASTM-B 2:111,113 Aluminum bo" fnr . leomc,1 purpose [ Bus-bars] ASTM -R 'l17,U3 Aluminum ·Alloy "xtrll(led bar, rod, pipe and structural shapp, fur

Batterle. IS 1651

eleltric.,1 purposes (Bus Conductors) ------+----'-

IS:1652

StJtinnary (ells and Battelle" Le<Jd-ACId Type [wIth TlIhular Positive Plates]

----~~ ~-~~~~~~ Stationary Cells and Ilanerl,,>, Lead-ACid Type (with Plante Positive Plates)

IS; 1146 Rubber and Plastic (ontalners for Lead·Acld Siorage Batreries ----+--,---15-6071 SynthetIc Sep.,.t"r, for Lead,Acid Battenes ---+-::----:-;-15:266 SpeCificatIon for Sulphuric ACId

;---------.-,;;-15:1069 SpectRe.tlon for Waler for Stol'ilge Bottenes 15;3116 SpeClRca""n for S~ahng Compound for Lead ·ACld Baneroes IS:124R IndICating Instruments IS l091B Vente d type noekel Cadmium Battenes IEC60B96·l l&ZZ Leod Acid Balleries V. lve R.gubled types Method> ofTests &

IE(; 60623 IEC:b0622

IEC,60623

IEC60896,11

IEFF-48S 1 ~ I 'E·1115

IEEE-11B7

IEEE·llB6

Battery Charger 15,1895 154540

IS:6619 IS:202~

IS:29S~

Requi rements

Vente

Seeon cell

d type lHekel Cad mium Balteries dary Cells & !latteries - Seoled N"Cd rech"rgeab le 'ingle

Seeon cell

dary Cells & Hanel'les - Vented N,·Cd reeh.rgeable Single

nary Lead ACId Batteries - Vented Type - General 5tatlu requi Recom

I'enlents & method of tests mended proctiees for siZing of Lead ACId B.ttenes

SIzIng on~I-Cd Batteries Recom Bal1t

mended practices for deSIgn & installation ofVRLA nes

-Recommended proctoc.s for dC>lgn & Instoll.toon 01 VRLA Iliilttcries

r.uldc fOI selection ofV RLA Battenes

MOllo-crystalhne Semiconductor Recttfier Cells and Sfacks Mono-cryst.;)llme Semiconductor Rectifier Assemblies and EqUipment

Salety Code for Semiconductor Rectifier EqUIpment Puwer Tr.JnsfonncPi

...

Ae Cont.ewrs fur Voltages not Exceeding 1000 Volts ____ -L ______ ~

ll"Chn l~1 1 'rC';111"·:l11~!11. LJ TJ{ ll-'(,(J .... rll(irRiR~\ '~I. : --t I.m Of )

PAGE 44

SeCiion-3

SECTION-GENERAL TECHNICAL REOUIREMENTS (GIRl

ANNEXUBE-C

CODES TITLE

IS:1 248 Indicating Instruments

IS:2208 H BC Fuses -- .-IS:13947 (Part-3) Air break switches, air break disconnectors & fuse combination

u nits for voltage not exceeding 1000V AC or 1200V DC IS:2 147 Degree of protection provided by enclosures for low voltage

switchgear and control gear

IS:6005 Code of practice for phosphating of Iron and Steel IS:3231 Electrical relays for power system protection

IS:3842 Electrical relay for AC Systems IS:5 Colours for ready mix paint

IEEE-484 Recommended Design for installation design and installation of large lead storage batteries for generating stations and s ubstations

IEEE-485 Sizing large lead storage batteries fO I" ge ne rating stations and substations

Wires and cables

ASTMD-2863 Measuring the minimum oxygen concentration to support candle like combustion of plastics (oxygen index)

IS-694 PVC insulated cables for working voltages upto and including 1100 Volts

IS-1255 Code of practice for installation and maintenance of power cables, upto and including 33 kV rating

IS-1554 (PI and P2) PVC insulated (heavy duty) electric cables (part 1) for working voltage upto and including 1100 V Part (2) for working voltage from 3.3 kV upto and including 11kV

IS:1753 Aluminium conductor for insulated cables

IS:2982 Copper Conductor in insulated cables

IS-3961 (PI to P5) Recommended current ratings for cables

IS-3975 Mild steel wires, formed wires and tapes for armouring of cables

IS-5831 PVC insulating and sheath of electric cables

IS-6380 Elastometric insulating and sheath of electric cables

IS-7098 Cross linked polyethylene insulated PVC sheathed cables for working voltage upto and including 11 00 volts

IS-7098 Cross-linked polyethyle insulated PVC sheathed cables for working voltage from 3.3kV upto and including 33 kV

15-8130 Conductors for insulated electrical cables and tlexible cords

IS-1753 Aluminum Conductors for insulated cables

IS-I0418 Specification for drums for electric cables

IEC-60096 (part 0 to p4) Radio Frequency cables IEC-60I83 Guide to the Selection of High Voltage Cables IEC-60I89 (PI to P7) Low frequency cables and wires with PVC insulation and PVC

sheath

Technical SpeCification: (jTj{ C/ENGG/SPECIGTR (Rev. No :- 14 , Jan' 17)

PAGE 45 Page II of23 (Annexure-C)

SErTION·GENERi\LIECHNICAL REOUIBEMENrS (GIRl

ANNEXIIKE·C

f CODES l lTLE lEt 60227 ( I' I to P7) PUlyvmyl Chlonde msulatod cables ofratl'J voltaJle, up to and

Indud ing 450/750V l"E-=C"'.6""O-=Z"'Z-=S------l-=Co-,-,d7"uctors o( msu"'l-a-' e"'d,..c-a7b:-Ie-s---------------i

IEC·h02:l0 Impulse lests on cahles and Ih .... lce,sorles ~~~~~-=~--~ IECh02S7 (P 1 to P3) Ca!cu l.tion of,Iw contlll"ous cur rent rallllg of rabies (100% load

laetor) IE('00J04 S~ndard colour; fQr Insu lalioll for low-Irequem;y cables and

Wln~S

I EC-60331 Fl,"e resisting (-haracteristics of Electric cab les I EC-60312[ I' I to P3) Iesl.'; on e leetne cable. und,'r fire cond,LJons IEC-60S02 ----'--+::EKlruded snlld di electr ic Insulated powel cables for '"ted

voltages fro m 1 kV lIpto to 30 kV c::-=,.,-;-;;:-:---:-=,----t-=--:....::.

IEC·754 (PI and PZ) Tests 0 11 g,,,,, evolved d" ring combustion 01 e lectrIC cables AIR conditioning and venUlaUon I S·~SY Safety code for dir ronditlOning IS·boo ARI521l

r_ 15,4503

ASHRAF.-24 I-,-

ANSI ·H-31.5 15:2062 IS,bSS 15,277 IS-737

15·1079 -15-3508 IS-Bll B5·848 85·6540 P.rt- I

-R5·3928

US·PEO-Z098 -M 1I.·STD,282 ASHKA E·S2

IS,3069

IS,467 j

, IS.8183 IS:H46

Safety code for Mechanical Refrlgerallon S~nd;l rd ror Positive D i spldct!m~nt Refrigeration Cf'lmrressor an de d " on ensmg n its --Shell and tube Iype hea t exchanger Method oftc'tlng for I'a llng ofllqul" coolers Refrigeration PIping Steel for general ,tructu ral purposes Specificatton 101 Metal Air Dust Sperlficatton fOi Galvanlsed Steel Sheets Specification for Wrought AlumIn ium and AiuminiUln Sh e~ l & Stri p Hot rol led cast s teel sheet & stnp Spc('lfoca~on lo r Electrical AXial Flow Fans Propeller Ty pe AC VentilatIOn Fans Methods or Performa nce Te~i"t for Fans Air Filters used In Air Candi tlOOIng 311d General Venlll.li on Sodl uhl Flame Test for Air Fi lte rs (Other than fo r Air Sup ply to I e. En~incs and Com pressors) Mel hod 01 ro ld OOP & hot DOP test 001' s mo ke penetration method Air rleaning device used in genrral vpnulauon lor- remOVI

pilrr-ide fIIdller

GlOSSal')' of TemlS. Symbols and Units Kelallng Lo Therma Insulation Mal~rials --Expanded Polystyrene for Thrrmalltlsu la llon Purposes Bonded Minerai Won I

~--~~~~-----

ng

Evaluation ofTltermai Conductivity properties by meo", of ________ .l.-__ _

, ,,"t"htl1l'; ' ( 'rc~d'k.:Jh\'n l , r It 1 I '\,lj(.,Sf'll tlTRlR\::\ :'\1 • . 1'~ • .lJn i"',

PAGE 46

Section-3

SECTION-GENERAL TECHNICAL REOlJlREMENTS CGTR)

AN , EXLJR E-C

~---

CODES TITLE guarded hot pl ate method

ASTM-C-591-69 Standard specification for rigid preformed cellular urethane thermal insulation

IS:4694 Centrifugal Fa ns 8S:848 Method of Performance Test for Centrifugal Fans ! 15:325 Induction motors, three-phase IS:4722 Rotating electrical machines

---IS:1231 Three phase foot mounted Induction motors, dimensions of IS:2233 Designation s of types of construction and mounting

arrangements of rotating electrical machines IS:2254 Vertical shaft motors for pumps, dimensions of IS:7816 Guide for testing insulation resistance of rotatjng machines IS:4029 Guide for testing three phase induction motors IS: 4729 Rotating electrical machines, vibration of, Measurement and

evaluation of IS:4691 Degree of protection provided by enclosures for rotating

electrical machinery IS:7572 Guide for testing single-phase ac motors IS:2148 Flame proof enclosure for electrical apparatus 8S:4999(Part-51 ) Noise levels Galvanizing

IS-209 Zinc Ingot 15-2629 Recommended Practice for Hot-Dip galvanizing on iron and steel IS-2633 Methods for testing uniformity of coating of zinc coated articles A5TM-A-123 SpeCification for zinc (Hot Galavanizing) Coatings, on products

Fabricated from rolled, pressed and forged steel shapes, plates, bars and strips

A5TM-A-121-77 Zinc-coated (Galvanized) steel barbed wire Painting

15-6005 Code of practice for phosphating of iron and steel AN51-Z551 Gray finishes for industrial apparatus and equipment 5SPEC Steel structure painting council Fire protection system

-- Fire protection manual issued by tariff advisory committee (TAC) of India

HORIZONTAL CENTRIFUGAL PUMPS 15:1520 Horizontal centrifugal pumps for clear, cold and fresh water 15:9137 Code for acceptance test for centrifugal & axial pumps

15:5120 Technical requirement - Rotodynamic special purpose pumps --

API-610 Centrifugal pumps for general services Hydraulic Institutes Standards

Technical SpecifIcation: GTR CIENGGIS PIoC'GTR (Rov. No :-14 . .Ian·171

PAGE 47

PClge I J of 23 (Anll t:xufc -C)

SECTION -GE NERAl, TECHNIC"" REOlIIR EMENTS (GIRl

ANNEXURE

[§ES B5:Sqq____ Methuds of te,tong pumps

TITLE

I'TC-8-2 Power Tesl Cuues - (entn fu gal pumps ----------~--- ---~~~~--------------~

D!I;SEL ENGINES IS.10000 Methods of tests for irHcrnal combustion engines ~~~-----------~

IS: 10002 SpeClfiC;]tlOo for pC'nnrrnance 1 equlremenls for constant spe~d compresslun IgmtlOn engines for gcnrral purposes (abovt:' 20

I kW) IlS:5514 The pe."formi1nce of reciprocating cn l11prcs~ion ibm,hon (Diesel I

engines, uti l izing liquid fuel only, for gener"l purposes 150:3046 15:554

_____ --l_R_e_c_''-p_rO_'_'"_t_lrl g ~nlemal comhustlon enginas pl'rfol mance ___ -I D,ntenSlOns for pipe threads whrn) pressure light jolnls ~lrl! required on threads __

I memal Com bustJon..:e::.n~g~on::.e:..:.P..:T..:C_' 1:...7--, _____ ...,-::-:-___ -1 Codes of Diesel Engine Manufacturer's ASSochHion, LI S)'

,\SME Pow.rTeSI Code

__________ L-__ __

PIPING VAI.VES 8. SPECIALITIES IS:636 Non percalatlllg no.,IlI . fire fi ghting delivery hose 15:&38 Sheet rubber Jo intlnR and rubber ,"sertlng jOinting 15.778 Gun metal gate, Rlobe and check valve. for gene .... purpo.,,,

15:7:B.::0 ________ l-=S;,:IU;,:I~(" valves for Water works purposes (50 to 300 mm) 15:901 Couplings. double m.le and dOub l~ fe m.le Insiantilneous pattern

______ +-=fo:..:r;,:fi;,:"...: • ...:n;!'g!:.:hting -,--,-~,---,------IS:902 _______ -+.::5.::U.::cl=IOrl hose couplmg'ii for firl)4lightlng purposes

IS:903 FIre hose delivery cOllphn~s branch pipe nozzles and nozzle spanner

15:1538

15:1903 _____ -I_c=a:..:'...:t...:l :..:ro...:n.:..::fI:..:ll:..:lIl.::g~s for pressurr pipes ror wale-r, gas and sewage

Ball valve (honzontal p l un~er type) Including noats for water __________ -+...:s=up~p:..:l~y~p...:u...:rp~oses _____ ,_--,_-------------

15:2062 SP for weldable s tructura l steel ----+=-....:.:::..:-==-= 15:2379 Colour Coue for the Identlne"tiM of p ipelines IS:2643 D,menSIOns of pIpe t hreads for lastenlng p urposes IS:2685 Code of Prattle£' for selection, IMstdllatlon and maintenance of

sluke valves

15:2<)06

15:3582

15:3589

:-_____ -1-5:..:1...:":,1(:.:, .• valves for water,works pUIVOS.S (350 to 1200 mm SIze) B",ket stralllers for fi re-figh ting purposes (cylindrical type) - -------1-:.-.. Electnc.ll1y welded steel p ipes for water. gas and sew.~e [ 150 to 2000 mOl nominal diameter)

------~---- --~:.:..::.:..:~-----J-IS:..::_4...:0_3_8 _______ -+_F_O_O_l_valves for \V,Her works pUlposes

15:4927 ________ -i-U_n_I_lned Oax anva. hos. lor lire flghUng 155290 Landing valves ( Internal hydronl) 15:5312 [Part- I) SWing check type renex (non-ret..,u..:rn-"):,""_,_Iv_p-,s,-__ ---,._ 15:5306 r.ode of practice fur n re extingUIshIng IOSlall.ll10llS and

eqUlpn1C'IH 011 prt!l11lM~S

rn"hnh.'11 \rl.."i.:lfil.:.1l lnn (ITR f 1:'\(I(.sru ~JIRIRc\ "\11, t·~ b.n 1'1

PAGE 48

--

Sectlon-3

SECTlON-GENERAL TECHNICAL REOUIREMENTS (GTRl

ANNEXlJR E-C

CODES TlILE Part-I Hydrant systems, hose reels and foam inlets Part-II SprinkJer systems 8$:5150 Specification for cast iron gate valves MOTORS & ANNUNCIATlON PANELS 15:325 Three phase induction motors 15:900 Cod e orpractice for installation and maintenance of induction

motors 15:996 Single phase small AC and universal electric motors 15:1231 Dimensions of three phase foot mounted induction motors 15:2l48 Flame proof enclosure of electrical apparatus 15:2223 Dimensions of flange mounted AC induction motors 15:2253 DeSignations for types of construction and mounting

arrangements of rotating electrical machines 15:2254 Dimensions of vertical shaft motors for pumps 15:3202 Code of practice for climate proofing of electrical equipment 15:4029 Guide for testing three phase induction motors 15:4691 Degree of protection provided by enclosure for rotating electrical

machinery 15:4722 Rotating electrical machines 15:4729 Measurement and evaluation of vibration of rotating electrical

machines 15 :5572 Classification of hazardous areas for electrical

(Part-I) installations (Areas having gases and vapours) 15:6362 DeSignation of methods of cooling for rotating electrical

machines 15:6381 Construction and testing of electrical apparatus with type of

protection 'e' ---15:7816 Guide for testing insulation for rotating machine 15:4064 Air break switches IEC DOCUMENT 2 Three Phase Induction Motor (Control Ofnce) 432 VDE 0 530 Part 1/66 Three Phase Induction Motor 15:9224 (Part-II) HRC Fuses 15:6875 Push Sutton and Control Switches 15:694 PVC Insulated cables 15:124S Indicating instruments 15:375 Auxiliary wiring & busbar markings 15:2147 Degree of protection 15 :5 Colour Relay and timers 15:2959 Contactors PG Test Procedures

TechnIcal Sp~c ificalion: GTR OENGG/SPt(,/G'1 R (Rev_ No :- 14, JUI1'17)

Pag. 15 or23 (Annexure-C)

PAGE 49

SECTION·CENtRAL TECHNICAL REQUIREMENTS (GIRl

i\NNEXIIRH-

CODES TITLE f-:-:N::F::cpA-:--C. l::·l:-------t-:;S:-Ia-n-d"'"a-r-;J ""'fo-r-1-;11-.-1 o-s-I-. -II.-t-IO-" of spnnkl or s yste m

NFPA·1S Sialidard tOI water spray tixed system for tho Are protectIOn ~ I N~PA·l2A

NFPA·72E

NH'A·12 IS:3034

SlanJard for Ila long 1301 Fire ExU"guishln~ SYSl.m Slandard on Automatic Fire Delcllurs

:-:-:-----=-~-c-----

Fire PrOlecllon M,mu"1 by TAe ( Lalesl Edillon) Standa rd on Carbon dloxlde extingUisher systcms

Fi re of mdu..·anal bUlldmg

\

Efectrlcal gencr.ltmg and dl.~tnbutmg statIons code of prat.1.lce --J IS:2R78 C02 [Carhon dio<Idc) Type Extonglllsher

----------~~~~--~~~~--~-------------IS:217 1 DC [Dry Chem rcal Powder) type IS:Y4(J Pressurised Water Typ" D.G.SET

l iS: 10002 Spedflcallon rOI peJ"forma nu! requirements for ll'Hbla r" speeu compression i ~nitlO" [dlcsel engllle) fo r ~cncr.1 purpose<

IS: 1 0000 Method of tesIS for internal (ombU'tion cngilles IS:4722 Rotatln~ I!ll'ctrical machines .. spcciflcatJon

IS: 12063 Degree of pl-otection p rovided by enclosures IS: 12U6 5 PermlC)sible limit of nOi se levt!lc; for rcH,atlng electrical tnarhines

-- Indian ExplOSive ACI 1932 Steel slnlctures 15·228 (1992) Method or Chem ical Analys is of p ig !fon, casl IrOIl alld plaIn

carbon and low alloy steels. IS·802 (P 1 to 3) Code of pm"rico ror us. of st rllrtura l sl!'.1 in ove,l,.ad

tTansmisslolllinr towers

IS·806 Cod~ of pmctlce fOI- use of s teel tubes In gene,-a l b ,"ldll1g constmction

IS· Boa DimenSIons for hot rolled steel beam. column channel and an~le ",cetlOns

Ts:Bi4 --- - - - -Covered ciecb-odcs for manual ~rc \Veining of carhon or carnon manganese stee l -IS-916 Code o f Pract ice for lise of metal arc weldmg for general construCliotl In Mild steel

IS·1l17 Code oj practIce: lor lrJInll1g and testmg or metal arc welders. Pan 1 . Manu.1 Metal arc weldlllg

IS·87'; [PI to P4) Code of pmclfee for design lo.ds (olher than earthquake) fo r hulldlngs and .tructlJr~s

IS·1161 Steel tubes rOt "U uCluraJ pUIVose~

IS- I 182 Recommendeci practice (or r.nJiographtc examinatIOn of fusion welded blllllLlinls in ~Iee l plale,

- -15-13113 ( P I [0 P3) t lexagon,,' he"d lJo llS, screws & nuls 01 produe1.S grade C IS- 1364 - ,~

Ilesagon heJd bolts, screws and nuts or product graues A and B 15- l367 (PliO 1'18) Technical supply co ndItion for threaded steel filstencrs --- --

or L'tilltlnli "~L.:lfil·.iJ'h'n . (I rR t L !\Gtj SPLl lot:!t, Rn . . '0 .. -1 ~ JiJJl . .....

PAGE 50

SecIKln-3

SECTION-GENERAL TECHNICal REOUIREMENTS (GTRl

ANNRXlfRE·C

CODES TITLE 15- 1599 Methods for bend tes t 15-1608 Method for tensile testing of steel products 15-1893 Criteria for earthquake resis tant design of structures 15-1978 Line Pipe 15-2062 Stee l for general structural purposes 15-2595 Code of pra ctice for Radiographic testing 15-3063 Single coil rectangular section spring washers for bolts, nuts and

screws 15-3664 Code of pract ice for ultrasonic pulse echo testing by contact and

immersion methods 15-72 05 Safety code for erection of s tructural steel work 15-9595 Recommendations for metal arc welding of carbo n and carbon

manganese steels ANSI-B18.2.1 Inch series square and Hexagonal bolts and screws ANSI-B18.2_2 Square and hexagonal nuts ANSI-G 8.14 Round head bolts ASTM-A6 Specification for General Requirements for rolled steel plates,

s hapes. sheet piling and bars of structural use ASTM -A36 Specifications of structural steel ASTM-A47 Specification for malleable iron castings ASTM-A143 Practice for safeguarding against embilement of Hot Galvanized

structural steel products and procedure for detaching embrileme nt

ASTM-A242 Specification for high strength low alloy structural steel ASTM-A283 Specification for low and intermediate tensile strength carbon

steel plates of struc tural quality ASTM -A394 Specification for Galvanized s teel tran sm ission tower bolts and

nuts ASTM-441 Specification for High strength low alloy structural manganese

vanadium steel ASTM-A5n Specification for High strength low alloy colombium·Vanadium

steel of structural quality AWS 0 1-0 Code for welding in building con st ruction welding inspection AWS 01-1 Structural welding code AISC American institute of steel construction NEMA-CG1 Manufactured graphite electrodes Piping and pressure vessels 15-1239 (Part 1 and 2) Mild steel tubes, tubul ars and other wrought steel fittings IS -3589 Seamless Electrically welded s teel pipes for water, gas and

sewage 15-6392 Steel pipe flanges ASM E Boiler and pressure vessel code

Technical Spl!cili ~alion : GTR ClENGC;/SPEC/GTR (Rl!v. No. ~ - 14. Jan' I 7)

PAGE 51 Poge 17 ur2} (Annexu re-C)

SECTION-GENERA l. TECHNICAl. REOIIIREMENTS (GTRl

,\NNHllR L-('

T CODES TITLE

ASTM·I\ 120 I SpeCIficatIOn for p lpO ,~eel. black and hOI dipped. ,IIIL-coaled lGalvamzed) w~ l ded and .::>eamlt~S"$ steel pIpe fO t urdmary HS{1

ASTM·AS:l SpecIfIcation far pipe. steel. black. and hOl-,JJpped. WlC coaled welded alld seanl le"

"ASTM.AI06 Seamless carboll sleel pIpe for hIgh temperalure ,",,,Ice /iSrM·A2A4 Low and Interrnedlrlte tensile strength carbon·slltcon sleel plates.

lor machine pilrts and general conslnlcUOII

ASTM·A234 Pipe fil11ngs of w ruught l"L1rbol1 steel Jnd alloy steel fur nlOtirrate ilnd ehWilled temperatures

ASTM-Sl Bl SpecifiCatiOn for lorglngs, Ctrboll steel for gellerill purpose' piping

ASTM-AI05 Forgings, c:lfbun steel ror piping components

ASTM-A307 Carbon sled externally threated standard fasteners - I-c A5TM-A193 Alloy steel and stilnless steel bol lmg materials for h'gh temperature service -----

ASTM-A345 Flat rolled electncal steel for magnetic appllclillOos

ASTM·A 197 -- I-:: ----

Cupola mal leab le oron ANSI·B2.1 PIpe threads (Except dry seal) ANSI·B16.1 Cast .ron pIpe Oangesa nd glanged flttong. Class 25. l25. 250 and

BOO ANS I-Blb.1 Malleabl e oron Lhr •• ded fillings. dass 150 and 300 ANS I-B16.S PIpe flanges and nanged fillings. >leel nlckel .1I0y and olhcr

spedal alloys ANSI-B16.9 Factory-made wru ught steel butt welding nlungs

ANS I-Blfi.ll Forged steel Alling" socket-weldIng and lhreaded ANS I·B16.14 Ferrous pIpe plug, bushings .nd locknut< WIth plpie lhreads ANSI-B1625 BUll we lding ends

ANSI-BIB.l.l .-

I-f.rc hose couphng~ licrew thread -

- .-ANSI-Bl B.Z.1 Inch senes square an d hexagonal bolts and screw.s - - !"co - - -ANSI·B1B.2.2 Square and hexagonal nuts

NSI·B1B.2 1.1 l.oC'k wa.;;hcrs

ANSI-B1B.21.2 Plain washers

ANSI-BH.t Power plpmg

ANS I-B36.10 Welded and 'eamless wrought steel plJlP ANS I-836.9 Stainless swe l pip" Other ci vil works ' ta ndards 15·269 3~ grade ordinary portlan d cemenl IS2721 GalvallIzed steel ch .. n link fence fabriC Is·nu Galvanozed stee l barbed wore for fencong -15-383 Coarse and fine aggregates from natur;ll sources tor Concrete

1$·+32 (1'1 dnd P2) I MIld stee l and medium tensile steel hars and hard.{I.wn,;eel-wln~ fo r concrete reinforcement

h"('h"IC:'lt "'r~'~IIi("Ot1htn . i iTR ( I '(I( I SI'1 { (il R r'R~'\': . \ '1 .. 1~ . IJn 1"

PAGE 52

Sectlon-3

SECTION-GENERAL TECHNICAL REO{J[REMENTS (GTRl

ANNEX\lRU

CODES TITLE 15-456 Code of practice for plain and reinforced concrete

15-516 Method of test for strength of concrete

IS-8 00 Code of practice for general construction in steel

15-806 Steel tubes for structural purposes 15- 11 72 Basic requirements for wate r supply, drainage and sanitation

15-1199 Methods of sampling and analysis of concrete 15- J 566 Hard-dawn steel wire fabric for concrete reinforcement

15-1742 Code of Practice for Building drainage

15-1785 Plain hard-drawn steel wire for pre-stressed con crete

15-1786 High strength deformed Steel Bars and wires for co ncrete reinforcement

15-1811 Methods of sampling Foundry sends 15-1893 Criteria for earthquake resistant design of structures

15-2062 Steel for general stru ctural purposes 15-2064 Selection, install ation and maintenance of sanitary appliances-

code of practices

15-2065 Code of practice for water supply in buildings 15-2090 High tension steel bars used in pre-stressed concrete

15-2140 Standard Galvanized steel wire for fen cing

15-2470 (PI & P2) Code of practice for installation of se ptic ta n ks

15-2514 Concrete vibrating tables

15-2645 Integral cement waterproofing compounds

15-3025 (Part 1 to Methods of s"mpling a nd tes t (Physical and chemical) for water Part 48) and waste water

. 15-4091 Code of practi ce for design and construction offoundations for

transmission line towers and poles

15-41 11 (Part 1 to PS) Code of practice for ancillary structures in sewerage system

15-4990 Plywood for concrete shuttering work

15-5600 Sewage and drainage pumps

National building code of India 1970 USBRE12 Earth Manu"1 by United States Department of the interior Bureau

of Reclamati on ASTM-A392-81 Zinc/ Coated steel chain link fence fabric ASTM-D1557-80 test for moisture-density relation of soils us ing 10·lb (4.5 kg)

rame land 18-in. (457 mm) Drop ASTM- D1586(1967) Penetration Test "nct Split-8arrel Sampling of Soil s ASTM-D2 049-69 Test Method for Relative Density of Cohesion less Soils ASTM-D2435 Test method for Unconsolidated, (1982)

Undrained Strength s of Cohesive Soils in Triaxial Compression

BS-5075 Specification for accelerating Part I Admixtures, Retarding Admixtures and Water ReducingAdmixtures

Technical Spcclficalion: GTR CI~NGGISPECIGTR (Rev. No :-1-1 . .I an' 1 7)

PAGE 53 Page 19 or 23 (Anncxure·C)

SECT ION-GENERA L lECJj NI CAI. REQUIR EMENTS IG TRI

ANN FXlI.Ilk!.

CODES TITLE epWD Latest CPWD speclfi,auons ACSR MOOSE CO NDUCTOR ISo6745 Metllolb for OetermlndtlOn of B5:443- 191>9

~63 IEC.H ? 197.1 NE~lk107 · 1 964

CISPR ISo209, HSo3436·196J IS,J9H Part V IE(0209-1%6

Mas s ol/.lnc coaling o n ZinC

faMed Iroll aJ ld Ste~ 1 Artu:les

Method!) lor RadiO In t ~li e.-ence

Test un High Vol tage Insulators

Z1nc Ingot

Aluminum Conductor.;; for Overhead TransmiSSion Purpose's

B5 0215(PJrt-II) , Alumi nium Conductors galvanIzed steel reinforced extra hIgh 11-.C:109-1966 voltage (400 kV and above) IS-lnB, B5:1559- 1949 Reels and Drums fo r Bare Conductors

1~~~~~~-1~ 7~~~------------~ IS: I 521. ISO/R89·1959 Metllod for Iensile Testing or st~e l wire I--:-::-=~-'---------+':-15:2629 Recommended practice for Ilot dip Galvan ising on Iron dlld Steel 1--:-::-::-:-:::::---------1 IS,Z6~:l Method for Iestln!: Un iformiry of coating of zinc Coated Artldes

1--:-::-=::-:-;--------1 15:4826/ Hot dIp galvanoseti coatings on ro und steel wires ASI MA-472-729

""""GALVANIsm STEEL EARTHWIRE 1S:"152 1, 150/R.89- 1959 Method fo r Tensile Testmg of 5 te~1 Wire IS:l77R Reels and Drums- for Bare Conductors

15;2629 Recommended pr.Jctlce for Hot DIp Galvanising on Iron ;Jnd Steel

1502633 Methods for tes ting Uniform ity of Coating or Zinc Coated Articles IS'4826/ ASTM Hot dIp Galvanosed Coatings 011 Round Steel Wires I A 475-723 85:44J 1969

-15:674;/115,443-1969 M~lhod for Determ ln;}tion of mass arZine Coaling On ZinC coaled Iron Jnd St.eIMide,.

15 02091 85:3463·1961 Zin( ingol

15:398 (PL I t(l PS; 1992)1 I\ luminum Co nductors for overhead transmiSSIon purposes

8S:215 (Part- II Lighting Fixtures and Accessories

15:1913 Genera l and safety req uiremenL< fo r electrIC ligh ting "ltongs 15:3528 Water pmui electrIc IIgh tong fittings ~ -1504012 Dust proof electnc lighting fittings ~1 3 DUst Llgh. proof electn c lighting fittings -15:10322 Indu',nal llghring fi tllngs with meld I renectors -IS 10322 Industnal lighting fittings WI th pl"stlc renecto l',

IS .2206 Wpll glos. lIghting fitti ngs for use under ground 111 min es (non·

I t.'~ h lU~a l "'p<l: lfil:.lI illn ( ', I It t'l·'\t. (, srH t ·TR fR"·' . ~ ll , 1-lo . JJlI I:""j

P.II!I.::::!U tit ~J ( \[1 lL! \Ul l'-C I

PAGE 54

Scc!ion-J


.Al'!J'1 [ox II RE -C

CODES TITLE name proof lype)

15:10322 SpeCification for flood light 15:1032 2 SpeCification for decorative lighting outfits 15:10322 Luminaries for street lighting 15: 241 8 Tubular fluorescent lamps IS:9900 High pressure mercury vapour lam ps -~-.-.

15:1258 Specification for Bayonet lamp fluorescent lamp IS:3323 Bi-p in lamp holder tubular fluorescen t lamps 15:1534 Ballasts for use in fluorescent lighting fjttings.

(Part-I) 15:1569 Capacitors for uSe in fl uorescent lightin g fittin gs 15:2215 Starters for fluorescent lamps 15:3324 Holders for starters for tubular fluorescent lampS; 15:418 GL5 lamps 15:355 3 Water tight e lectric fitt ings

~ .. 15:2713 Tubular steel poles 15:280 MS wire for general engg. Purposes Conduits. Accessories and Junction Boxes 15:95 31 Rigid steel conduits for electrical wiring 15:3480 Flexible steel conduits for electrical wiring 15 :2667 Fittings for rigid steel conduits for electrical wiring 15:3837 Accessories for rigid steel conduits for electrical wiring 15:4649 Adaptors for flexible steel condu its 15:5133 Steel and Cast Iron Boxes 15:2629 Hot dip galvanising of Iron & 5teel Lighting Panels 15:13947 LV 5witchgear and Control gear(Part 1 to 5) 15:8828 Circuit breakers for over current protection for house hold and

similar installations 15:5 Ready mix paints 15:2551 Danger notice plates 15:2705 Current transformers 15:9224 HRC Cartridge fuse links for voltage above 650V(Part-2) 15:5062 Wrought aluminium and AI. alloys, bars, rods, tubes and sections

for electrica l purposes 15:8623 Factory built Assemblies of 5witchgear and Control Gear for

voltages upto and including 1000V AC and 1200V DC 15:1248 Direct Acting electrical indicating instruments Electrical Installation 15: 1293 3 pin plug 15:371 Two to three ceiling roses

Tech nica l SpecificatIOn: GlR ClENGGlSP l:,CfGTR (Rev. No ;. 14. Jan"17)

PAGE 55 Page 11 of23 (Annexure-Cj

SEC1 10N-Lt.Nt:RAI. J'ECtiNICA I. REOIJIREMENIS (GIRl

ANN~)jURE-L

IITLE : CI SO. 3

D8E554 Swt lL'h e~ for dumcsuc anu Slml l iU purpo~('.<j.

~~~~~~~--~ 15:5216 GUide (or sa(ely proeedurcsand practICes III eleclrlcal work IS.712 -------l-::C,-o-:d-'-e-o-=f-p-ra-c-o--"-ce for el<~clriC'a l wiring in !otallauon (system vollage

Ill" exceedmg 650 Va iL,.) ------------------~ 15,3043 Code of pralllee tar e,,,"hmg 'Is 364 6----------r-=C,-o-;J-.-u-=,-'-p-,-Jtltce 0 (mterl-o-r ':::i 1:-ll-IIl-,-m-.-:-t:--io-ll-p-,-"-:--:I:--1 &=-=1""":----

'ls:T944 Cude of practice (or hghtlng of public th l·ough fares 1--. IS:5571 GUide fo r sel(1'chon nf e lectrical equ lpmenllor ha7.i1rdous a reilS

15:800 Code of practice for use of st ructural ,tcelm general bUl ldm~ construction

~~--------~ ~--~~~~ 15:2633 Methods of Testing ulliforillily of (oaling on ,mc coated articles 15.6005 Code o( pr.lctlce for phosphating iron 3ml slee l

INDIAN EI.ECTR ICIIY ACT INDIAN ELeCTRIC ITY RULES

LT SWITCI1GEAR 1-:1 S:R623 (Part-I) SpecHkatlon for low voltage sW itchgear- and control gear

assem blies 5:13947 [Port- IJ Speclfimtlon fOi low voltage swltchgeor .nd control gear. Partl

Genera l Rules 5:13947 (part-2) SpecIfication for low volta~e switchgear and control gear, Part 2

circuit breakers-S,13947 (pan-J) SpeCification for low voltage sWllchge<u- and concrol gear ran 3 -

SWlllh~s. Dls(onnectof"'i, Switch·dlsC'onnecturs and fuse comhination units

$; l1947 [part-4) SpeCIfication for low voltage switchgear and control gear Part 4 Co ntacrors and motors starters

S, J3947 (pa,,"-S) Specification for luw vO ILage sWitchgear .. ~nd I onlral geal Part I) Control~nrcuH devlCe~ and swltchmg clrmcnts

S:J3947 (pal·t-6) Specification fOI low voltage sWitchgear and control ~ear Part 6 Multiple functioll SWitching devices

5:13947 [part-7) SpeclfiCdtJan for low voltage sWitchgear ilnd control gear Part 7 Anttll.rv eqUipment'S

S, l2063 Degree ot protection provIded by enclosures IS,2705 Current 1 r.msformers

--------~~ ~~------IS,3 ) 56 Voltage Transformers IS-3231 ElectnC31 relay, fp l power system protecDon

--------~ -----------~ IS: 1248 Electrlcalond leating Instruments IS:722 AC Electricity meter, IS:557H IS 13703 (pilrt 1)

15.13703 (part Z)

J t:..:hl1l\·jll .... [l\:l·lli.:auptl: tlTR

GUide fOI" Marking 01 insulated conducto,"S of apparatus lenn!nills Low voltage fu,es for voltage note,ceedlng 1000V AC or 1500V DC I'a,," 1 General Requi rement< Low vol tage fuse' for volt.ge not exceeding 1000V AC or 1500V l LJC Part 2 Fuses for USe offluthorized persons

I'ag~ 1201 :!1 ('\J1l1c:\lIn:-{ J .. !-!\(J(i '!'ll'H (II R fR\:"\ ~l' .-1..1 JII..,·171

PAGE 56

S~C!I()I,-3

SECTION-GEN ERA l. TECHNICAL REOIJlREMENTS (GTRl

AN NEXIIR E-C

CODES TITLE

15:6005 Code of practice of phosphating iron and steel 15 :5082 Wrought Aluminum and Aluminum alloys for electrical purposes

IS:2633 Hot dip galvani sing

TcchJ1lcal Spccifi ca tion. GTR ClENLG 'S PEC'GTR IIZev. No :-1 4, Jan ' 17)

PAGE 57

Pogc 2) of 23 (Annexure-C)

SECIION-GENERALTECHNICAI.I! EOlJIRtMENIS f(jTRJ

I. -\~ N r.XIlR F. F -- I COMP REHENSIVE LIST OF DRAWINGS

SL.NO. DRAWINGS/DOCUMENTS T ITLE CATEGORY

1.00 SUOSTATION LAYOUT DRAWINGS - I-;---l.01 I-SlOgle Line Dldg,"m 01 ,ub'UltlOn A

r---!Jl.2 Elecrncal layout (plall & secuon) dr.Jwmg A --~~ Overall General Arrnngemenl drnwlng e- A -

1.114 StnlCture loadmg Iha~rJm cum layaut dr.twlng II JUS , IJ!>.LP Layout draWing A 1.01i Swm:.hla rll Foundation layout tlr..wlng A -10: _ Ere<tlOn Kc~ [llagram I plan & secdon) & Erection Bill ar 9".nllty A 108 Indoo,' table tTenth layout tlr.wing A 10'1 , Outdoor Cable trench layollt draWing A -1.10 Buned cable (Tench layout draWing A 1.11 L'ghtmg Fixture & cortduit layout - Control ruom bUIlding AiR

~ -112 l,i~h"''£Yixture & condulliayaut - FFPH building AIR .-l.J3 L'ghting Fixture & condulllayoul - TranSIt Clmp (if apphcahle_l __ AIR 1.14 I.ightmg F,XUl , e & CO lldulllayoul- Swltchyard/Street A/R - -US LIghting F,xllJrc & co ndUI t layoul - Swltchyard panel room A/R 1.15 Earthmg layou\ tonlrol Room bulltllng II 116 Earthm.t layout - OUldoor SWltchyard .lrea A 1.17 Layoul drawin g for grav~1 and fence A 1.18 SWltchyard Ro.!tI & dr"m layollt draWing

-f-A

119 Layout d"i1wlI1g of Visua l Monltonng System f- A 1.20 SLD of LT AC/DC systems A . -1.2 1 LT switchgear room -Panel layout A

!-' I.U -- -Fire FIghting Plpmg layout in the switchyard A

1.23 Fire protection sy,tem (Hydrant system & Extingu ishers) for Control room A huildm!!. GIS Buildi n!! & FFPH building etc -124 II VW spray system draWings (plan, elevatio n, side View, isomelnc vIew and II pylon sU]lJlort location details) 125 NIFPS draWings A

-

U6 Fire detection & Alarm system for C"ntrol room building. GIS Buildmg & A !)wi~~ard ~<mel room

127 PanellayouUn Conlrol room bUlldmg A -128 Layout d rawing for L T stanon A 1.29 SWitchyard Panel room - Panel layout A -1.30 Power cable te rmination schedule R 1.31 Co nlrol cable term ination schedule R

Applicable for GIS

1.3 2 Gas Syslem LillO Diagram fGAS SLD J Imlicatlng compartment details &

~3 WeIght

A -LIS Layout d,<l\ving indudlng outdoor GIS (Plan & Section) U4 Layout drJwing al UH F , ensors fu r PD Measu ,'.",ent A U S LIS building - Layout drawinj: A J 36 LIS Ullilding - Llghtlllg Fixture & mnd uit layoul A r--u7 f-

.Q!S Build Ing - Layout drawing o!:yentilatiol1 Sy'tem A -lCL illll (.' '] f "pt.'\,i rll';.lllurl (i-l R '" L' ,,( , Pit { fI( ,1«\ , " ' . 1".).,,' (7 , PAGE 58

SECTION-GENERAl. TECHNICAL REOUIREMENTS (GTR)

ANNeXURE E --

COMPREHENSIVE LIST OF DRAWINGS

1.3 B GIS Building (Panel Room) - Air Conditioning system layout drawing A 1.39 GIS Building - Indoor cable trench Layout drawing A

2.00 DESIGN CALCULATION 2.0 1 DSLP Calculation A 202 Sag Tension & Short Circuit Force Calculation (if applicable) R 2.03 Lighting system design calculation (if applicable) R 2.04 Earthing system design calculation (if applicable) R 2.05 Battery jCharger sizing calculation (if applicable 1 R -2.06 Hydraulic calculations: for Fire protection system R 2.07 AC & Ventilation calculation (or GIS Building (i( applicable) R 2.08 EDT crane sizing for GIS building R

3.00 GAS INSULATED SWITCHGEAR 3.01 Design Review document along with all supporting documents A 3.02 Guaranteed Technical Particular (GTP) A 3.03 Components GA drawing for CB, OS, ES, GI B, CT, VI, Spacers, Bushings etc. A 3.04 Schematics for CB, DS,ES, CT, VI etc. (Except for LCC) A 3.05 Type Test Reports for GIS Equipments A 3,06 Detailed drawing of Bus Extension Module 3.07 Foundation plan for GIS (Including Loading Data) A 3.08 Platform Arrangement R 3.09 Name Plates R 3.10 GA & Schematic drawings of Local Control Cabinets (LCC) A 3.n GA & Schematic drawings of overhead crane A 3.12 Earthing layout inside GIS building R 3.13 Catalogues for R

a) SF6 gas leakage detector b) SF6 gas filling & evacuation plant c) SF6 gas Analyser d) On line partial discharge monitoring system

3.14 List of Mandatory spares A 3.15 List of Special Touls & Tackles A 3.16 Instruction Manual including catalogue of sensors R

4.00 AUTOTRANSFORMER 4.01 Design Review A . 4.02 Guaranteed Technical Particulars A 4.03 Outline General Arrangement Drawing with Bill of material (OGA parts list) A 4.04 Foundation Plan A 4.05 Over Fluxing withstand duration curve R 4.06 Hysteresis Characteri stics & specific loss vs flux density eu rve of iron core R 4.07 General Arrangement & Control Schematic of OL TC alung with write-up A 4.08 General Arrangement & Control Schematic of Marshalling Box. Common A

Marshalling Box and Cooler control cubicle along with write-up

Tecnmcal SJh."Cl licatlon: GTR Page 2 of9 (Annc xllre~E )

\ 'FNGG/SPEUG R {Rev. No.:-14. Jan'17) PAGE 59

51.! J'I0N-lit:NE RAl, TECH NICAI. REOII!REMENTS (GIRl

COMPREHENSIVE LI~'T OF DRAWINGS - 4,09

~

Genel'al IImlllgemcnt II< Control Schematic of Digital RTeC relay alld cubicle A ---:;:To Intl!rumnettion didgl"am Llr Drive M~ch~nlsm Box, Marshalhng Box. .- II

Com ilion MarshallirJlL!lox & Di&'tal RTCC __ 4,11 SCADA contrnunicaUun InterJ<1ce of online mOOitoring eqUIpment A 4.12 Transport DraWing R 413 Technical PartICul,,,, of On line DCA, Drying system. FO system A 4 14 Ou,lil1" and willrol schematiC of NI FPS A - 1 415 CA & GTI' 01 bush ings A 416 Earthing Arr.ngement Dr.lwlng (Internal 8, Extern"I) A 4,17 Drawing 01 Al r[ell. Con~ervalor & Radiator A 41H Conservator& Tank Oil filling procedure plate R 4.19 MilgnoflzlI1g (haract~rlslks of bushings CT R 4,20 Raling and Diagram plate A 4.21 Oil now Diagram R

-----;U2 -Valve Sdiedu le plille tlr.l\vmg A --4.21 GA ofTwin-Bi direCllonal roller II 4.24 Instruction MatlWlI R

4.25 roO' II Type Test Repon - r--' - - - -5.00 REACTOR 5.01 DeSign Review A

5.02 Guaranteed Techmcal PrutJrulars A -

~3 Outline General Arrangement Dr-dwlng with Bill of material (OGA parts Its t) A ----s"ii4 Foundation Plan A -

5.05 General Arrangement & Control Schematic of Marshalli ng 8m::. Common II I Marshalhng Box alonlLwi tb write-up

~

5.06 Sl:ADA comrnunn.:aUon Interface of online momtoring equipment A 5.07 I . R Tmnsport Drawong

- 5.08 TechnICal Pal'tleu).rs of Online DGA. Drying system, FO sy' tem : -II _ .. ::--c-.. -5.09 Outhne "nd control.chematlC ofN IFPS II

5.10 GA & GTP of bushing' A 5.11 Earthing Arrangement DraWing (Intemal & Ext.rnall II

5.12 Drawing or Alreel], Conser'V"'dlor & Radiator R 5.13 Conservator & Ta nk Oil filli ng I,rocedur. plate R 5.14 Magneti7...aoon charatt~risr1cs of Reactor Core and bushing CTs R

HystereSiS CharncreristJcs & specific loss vs nux d('nslty curve of iron (ore i 5,15 R i

5.16 RaUng and diagram plate A 5,17 Voltage Ampere curve for Reactor i

R S,16 Valve Schedule plate tlr"wlng A S.lQ GA ofTwln bi·dlreHiun.1 roller II

-~

5,20 Instmcoon Manual R 5,21 Type lesl Report A

-6.00 NEUTRAL GROUNDING REACTOR (NGRJ -I a1 AIR CORE TYPE NGR - ~

fedllll'l.:;ll "p(..,(,"l li':1lllln (i TN I l ~li',SPII·(;IR(R,'\ , "v IJ.I""I'I PAGE60

SECTION-GENERAL TECHNICAL REOlJlREMENTS (GTRl SectiOl'l-3

ANNEXUR F. F. -

COMPREHENSIVE LIST OF DRAWINGS

6.01 Design Review Document A 6.02 General Technical Particulars A 6.03 General Arrangement Drawing with BOM A 6.04 Mam Coil Lifting Details R 6.05 Founda tion Detail Drawing R 6.06 Main Coil & Insulator Assemblv Drawing /I 6.07 Terminal Detail Drawing A 6.08 Rating & Diagram Plate /I 6.09 Transport Drawing R 6.10 NGR Pedestal Drawin!:. A

bl OIL FILLED TYPE NGR 6.11 Design Review Document A 6.12 General Technical Particulars A -6.13 General Arrangement Drawing with BOM A 6.14 Foundation Detail Drawing R 6.15 Combined Founda tion of Reactor. NGR and LA A 6.16 Rating & Diagram Plate A 6.17 Transport Drawing R 6.18 Control Schematic A

7.00 CIRCUIT BREAKER 7.01 GA drawing of SF6 CB A 7.02 GTP A 7.03 OGA drawing of control unit A

7.04 OGA drawing of support insulator. interrupter insulator. PIR chamber R insulator. grading capacitor insulator (as applicable) 7.05 Support structure & foundation plan drawing A 7.06 Schematic drawings/Wiring diagrams A 7.07 Rating and name plate drawing A 7.08 SF6 gas connection diagram R 7.09 Schematic diagram of operating mechanism R 7.10 GA drawing. GTP & Type Test Reports of Controlled Switching Device A 7.11 Terminal pad and corona rings R 7.12 Sectional view or interrupter R 7.13 Type Test Reports A 7.14 Instructi on Manual R

8.00 ISOLATOR 8.01 GA drawing of Isolator With/without earth switch A 8.02 GTP A 8.03 Contact blade assembly (main & earth switch) R 8.04 Terminal pad & hinge contacts R 8.05 GA of MOM - main switch R 8.06 Schematic & wiring drawing for main switch R 8.07 Name plate - details A 8.08 GA of terminal pad A

Techlllcni Spcc iricati on: GTR Pag..: 4 0( 9 (Annex ure-E) Cl ENGG/SPECIGTR (Rev No :-14. ),n'l7) PAGE 61

SECTION·GENERAL IECHNI CAI. REQUIREM ENTS (GTRI , INN EXlJ RE L

COMPREHENSIVE L1SI OF DRAWINGS -

8.09 GA 0 1 post insu lator for isolator R ---8.10 Type Test Repo rt A B.1l I nstruction Manila I R - -

I-r-9.00 INSI RUM ENI IRANSFORMER (CT/ CVT/ IVT)

~:~~ Genera l Arrangemenl A (';TP A

9.03 _ ScctionJ I view R -r-904 _ Sec lerm,nal box GA R

Y.OS Win ng draWing. 01 JB lOci. in lerpol. R 9.0(, Te mllna l pads A r---;u17 Schenlallc & radng p lale

~-. ~

H - -r-!0H Porcelain insulalo l R 9.09 Corona rill l1 R 9.10 I ype Test Reports A 9.1 1 Instruction Manual R - -

10.00 SURGE ARRESTER 10.01 GlI o[Surge Arreste r A 10.02 GTP A -10.03 Porcel ... n/ Polymer ,ns ulato r R 10.04 Cruss sectional VIew R 10 .0S Arrestor .::md unit name plate A 10.06 Corona & Gntdmg nng_s R 10.07 insulJ long base / surge counte r deta il R -10.08 Outli ne drnwmg of surge counter R 10.09 Cirtult diagram of surge counl;cr R

~~: :~ (';A lIr.1w lng uf ZnO e lemenl R Line re.-mmai bracket Wl l h corona rings R

~2 Orawing showing pressure relief arrangement. R 10.13 .J~e Iest Re port A 10. 14 Ins tructio n Man ual R

11.00 BUS POST I NSlJlATQR - I l.Ui GA draWing & GTP A

~ll Type Tesl Reports /I

n.oo Marshall illg Box, JUIlctioll Bux.s 12.01 GI\ d ra",on~s /I 12.02 Schematic drawings /I 12.03 Type Test Re~o ,'t5 A

r- -13.00 CONDUCTOR, At. IU BE & GS EARI II WIRE 13.01 Ty pe Tesl Report.. ijfa rrlorable]. - A

I ,"'dlnll.:al ~rl."~HiL.:,J.l l lln (il K t 1 ";' ;.·I'H l] I R , Re' :-;".: \- Jon 11 PAGE 62


ANNEXURE E -

COMPREHENSIVE LIST OF ORA WINGS

14.00 DISC INSULATOR 14.01 GA drawing & GTP A 1402 Type Test Reports A ----

15.00 LONG ROD POLYMER INSULATOR 15.01 GA drawing & GTP A 15.02 Type Test Reports A

16.00 INSULATOR STRING(S) WITH HARDWARE ASSEMBLY

16.01 GA drawing & GTP A 16.02 Component drawings R 16.03 Type Test Reports A

17.00 CLAMPS & CONNECTORS 17.01 GA Drawings A 17.02 Type Test Reports A

,-- - -18.00 HORN GAP FUSE 18.01 GA draWing & GTP A 18.02 Type Test Reports A

19.00 BATTERY AND BATTERY CHARGER 19.01 GA drawing & GTP of Battery Bank A 19.02 GA drawing, GTP & Schematic Drawings of Battery Charger A -- -19.03 Type Test Reports of Battery & Charger A

20.00 ILLUMINATION 20.01 GTP /Catalogue of fittings/fixtures A 20.02 GA drawing of lighting poles/posts A 20.03 GA drawing of Junction box A 20.04 GA drawing of street lighting panel/outdoor/indoor lighting panel A 20.05 GA drawing of Receptacles A 20.06 Schematic draWing ofpanel/LDBs to fixtures R

~

21.00 L T SWITCHGEAR 21.01 SLD, GA & Schematic drawings of MSB A 21.02 SLD, GA & Schematic drawings of ACDB A 21.03 SLD, GA & Schematic drawings of 220V DCDB A 21.04 SLD, GA & Schematic drawings of 48V DCDB A 21.05 SLD, GA & Schematic drawings of MLDB A 21.06 SLD, GA & Schematic drawings of ELDB A 21.07 Type Test Reports A 21.08 Instruction Manual R

Techn ic al Spl'ril lca ti on: GT R Page 6 or9 (Anncxll rt: - r=) C/EN GG IS PEClGTR (Rev. No.: 14, Jan'17) PAGE 63

SECTION·GENERAI. TECHNICAl. REOUIREMENTS ((iTRI " t\lI,NIXII IH I:

COMI'REHENSIVE LIST OF DRAWINGS ,

22.00 HT POWER CABLES -22.01 GTI' & Catalogue A 22.02 Type Te.t Reruns A

23.00 POWER & CONTROL CABLES ~

23.01 Type Test R~ ports for cont rol cables A . 23.02 Type Test Reports lar power cables A

-CONTROL AND RELAY PANELS & SUBSTATION AUTOMATION SYSTEM 24.00 ~AS) r VISUAL MONITORING SYSTEM (VMSj -

HOI GTP for oil prnl~ctlOn relay>. Travelling Wave Fau lt Locator. SAS EqUIpment A -

Type Tpst RcpOl'IS of all protectlun relays . Trovdling Wave Fault Lucator & 24.02 SAS IEOs AIR -

24.03 GA and sehemauc drgs.. for :~

a) Rcla~ "'Hi protecuen panels for all type of line!s) A

b) Relay and prot"CUon panels for all type t ransformer{s} Indudlng terllary II - loadong

( I Relay and protection panel< IU r buslhne reactor!s) (swltchub le & non- II sWltchable as a pphcable) d) Relay and p rotection panels for tie bay!s) A e) Rela~ and protectoon ~anels for Tile bay(s) A

J-fl.. Relay a nd pro teclIon panels for DC bay«) A

r--,~) R~lay and protecnon panels for Ilus SectJoll , liser bay{s] A hJ liDS bar prutectlo n panel [s) A I] Breaker relay panel(.) A

n Interface panel A . 24,,04 SAS Architecture A 24.05 RelaySetlings A 2406 GTP,iCatalogue orVMS cqu i~ll t AIR -24.07 GTP ICatalogue uf Camera AIR 24.0B VMS architecture drawong A 24,09 Technical Literature and O&M manuals R

'- -25.00 PLee EQUIPMENTS 25.01 GTP IDrawlngs lor PLee Carner EqUIpment AIR

t- 25.02 GTP/Drawings for Wave traps A 25.03 GTP I Drawings Couplong deVICe A

I- 25,04 Digital/AnalOG Prot.cUan co uEl e .. A 25.05 SN R calcul.tion (i12Qpli .... "ble) R -25.U6 GTP/O rawmg of HF cable A 25.07 Type Test Report, of PLCC equipment A 25,OB Testing & malnlen.once eq Ui pment> R 25.09 ,~'reque,,(y Plann ing A -25.10 Technici:llllternture and O&M Mallua ls R -It:'..:hlll'~11 Spt!'L'if;C11hlt1- r, [[( I.) hh: 7 til 'J l. \lul!!"i url.!-I 1

, I ~(,(, ~r['( (;rl((R" '" . 14, J""rl PAGE 64

SECTION-GENERAL TECHNICAL REQUIREMENTS (GTRI Se{.lion-3

AN NEXURE E -COMPREHENSIVE LIST OF DRAWINGS

26.00 DG SET 26.01 GTP A 26.02 DraWings/manuals A

27.00 AIR CONDITIONING & VENTILATION SYSTEM 27.01 Drawi ngs/GTP /Catalogues A 27.02 A/e sizing calculation A

2B.00 LT TRANSFORMER

2B.01 GTP A 2B.02 Drawings A 28.03 Type Test Reports A

29.00 FIRE PROTECTION SYSTEM 29.01 Fire Fighting Annunciati on & control panels ~-29.02 GA and Schematic for LCP for deluge valve ope ratio n A 29.03 Hydraulic calculations for HVW spray network R 29.04 Drawing for deluge valve housing A 29.05 GTP & drawings for strainers (Y type & basket strainer) A 29.06 Drawing or valve pit details A 29.07 System WTite-up with various settings A

29.0B GTP & drawing for gate valve. check valve. solenoid valve, outdoor hydrant A valve

2909 GTP & catalogue for deluge valve, sp ray nozzles & projectors A 29.10 GTP & catalogue for quatrzoid bulb detector A 29.11 GTP & drawing for pressure switch, pressu re gauge A 29.12 GTP for G.!. & MS. pipes & pipe accessories A 29.13 Any other drawing/document required for completion of work A/R

CONTROL ROOM BUILDING / TRANSIT CAMP /FFPH BUILDING/ 30.00 SWITCHAYRD PANEL ROOM/INDOOR HT SWITCHGEAR A

ROOM/TOWNSHIP BUILDINGS (AS applicable) 30.01 Arch itectural drawing

a) Plan, section & elevation

b) Doors & windows schedule

30.02 Building des ign calculation (if applicable) 30.03 Civil Construction design/drawings

31.00 DRAWING FOR GIS BUILDING (If applicable) A 31.01 Architectural drawing

a) Plan, section & elevatio n

b) Doors & windows schedule

31.02 GIS building superstructure drawings & d esign calculation 31.03 Civil Construction deSign/d rawings

Technita l Spc<·jfil.:ation: GTR p'\J:;C l:S 01'9 (Annex ure-E] ClENGWS PECIGTR IRev. No.:- 14. Jan'17) PAGE 65

SECflON-GENERALTECIlNICAI. REOIJlREMENTS ((jTB)

IINNF.XIIRr !' ',.

COMPREIlENSIVF.I.IST OF DRAWINGS

:H04 GIS Equi pment foundatIOn Inside GIS buildi ng

-- -3Z.00 Switchyard Civil Construction Drawings (as applicabJe_) __ II -

.1) Tower FOllndation

b) , Eq Ui pment Foundaoon c) Trn nsformcr foundatiol1 .-<iJ Reactor foundation

oj Itoad construcbon Including culverts , n ll l t um ro_a~

f) Swllchyard fen cing & Gate . g) Cable trench seenon - -hJ Dram section

i) Rain harvestmR

Jl Bounda ry wall k) DG set foundation -I) LT Lransronner foundation

ml Car Parking Shed/Security Room

~ OUldoor GIB found.l lion - 1 0) OIJtdoor 5f6/ Air bushmg found. l lo n

-f p) BMK/ Li~hdng pole foundation q} Fire Wal l r) Drawing ot contour levels 5) DraWlng of Formallon levels

lJ Soil lnvestlga lio n Report u) IIny o ther foundalion inside switchyard

33.00 DESIGN. FABRICATION & PROTO CORRECTED DRA WINGS OF II!.L A/R TYPES OF TOWERS & BEAMS -

-DESIGN. f-A8RICATION DRAWINGS FOR EQUIPMENT SlIPPORT :l4.00 STRUCTURES A/R -35.00 MISCELLANEOUS CIVIL ORGS IIIR _

LEGEND:- 1\ - for Approval; R- for Record

NOTES:-

1, III caSe any addition.1 drawings/documents are required. the same sb,,11 also he submitted during execuLion oflbe contract

Z, In case. some dr. wings as menLioned in the above list are nOI.pplic.,ble for the scope of work. Ibe same 'hall not be referred to.

rc~hnl(,J ~pl.."t·JfiL:a ll(m· til K t '~(,(.SPH , !"Rille, "" . ,- Jan n PAGE 66

SO'Coo11-3

SECTION-GEN ERAL TECIINICA!, REOl!lREMENTS (G I Rl

Aooexure-G

MQP & INSPECTION LEVEL REQUIREMENT

51. Item / Equipment Requirement of Inspection

" No, MQP/ITP/fAT Level lA Transformer /Reactor Yes IV 1 B Circuit Breakers Yes IV 2 Current transformer Yes IV 3 Capacitive voltage transformers/Potential Yes IV

transformer 4 Isolators Yes IV 5 Lightening Arrestors Yes III 6 Line Tra p Yes III 7 Control & Relay Panels Yes III 8 Power Cables Yes III 9 Control Cables Yes III 10 LT Switchgear & ACD8/DCDB/MLDB/ELD B/ Yes III

Lighting Panels 11 Fire protection ~stem

11-A Panels, Deluge valve, Hydro pneumatic tank. No III

11-B Strainers, extinguishers, MS/GI pipes, Pumps, No II motors, air compressor, and other valves, Diesel Engines

11-C Others No I 12 Insulator [Disc, Long Rod, Solid Core) Yes IV 13 Conductor Yes IV 14 Clamps & Cannecters (including equipment Yes III

connectors) 15 Junction Box / Lighting Switch Boards / Bay No " MB /Telecom Eguipment Cabinet 16 Cable lugs No I 17 Lighting Fixtures ,Lamps & fans No I 18 Switches No I 19 Conduits No I 20 Lighting Poles No " 21 MS/GI /PVC Pipes for ca ble trenches and No I

lighting 22 Hume Pipes No I 23 Galvanized Cable trays No " 24 MS/ GI Flat and earthing material No II 25 MS Round for Earthmat [40mm dial No I 26 Lighting Earthwire No I 27 Aluminium Tube & Busbar materials No II 28 Outdoor Receptacle No I 29 Nut I Bolts I Spring Washers [Gr 5.6/5) No II 30 LT Transformer Yes III 31 Battery No II 32 Battery Charger Yes III

rcchll iC'u l Spc -Jl'icaUon: GTR C:LNGG SPECIC! R Hh.'v. No.:- p , Jt\lll 7 t

PAGE 67

SECTlDN-GENER,'!. rEIUNI!:,\!, REDUIRI.MEN1S lIifRI

AunpxureaG

51. l telll I Equipment Requirement or InspectJ(l1l No, MQI'/I TP/FAT Level

33 lJ G. Sel No II 34 Spill A.C/wtndow A.C. No I 35 Subslatlo" Automat"m system No III 36 Telephon. wires No I 37 Telepho". sOlkels No I 3B Alun,,",u," ladder No I 39 Occupanrv sensors to r contro l 01 lIghting No I 40 Sub Slallon StTuctlll'e [l att ice/pIpe tvpe] Ves II I 41 HG fu se No II 42 PLCC eqUipment V'z PLCC Termln,,1 ,Carrier Yes III

equ Ipm ent. PrOleclion Coupler . Couplj,,~

Devico hut exduding IWAX I HF Ca blel Sll H EqUIpment

43 IIF Ca ble / GPS Clork No I 44 EPA)[ No I 45 Cable Glands / IOlnts IClamps/ TermInation No I 46 Video MOntlorinR System No II 47 Controller for sWltchlnJ:!: No IV 48 Sola r based street hghnng pole Includmg solar No III

panel as per technical speci fica tion 49 Evenl Logger No III 50 LIghting transformers Yes II 51 SLr1n~ Hardware Yes IV 52 Test EqUIpment I No I' S3 GS Earthwire " Ves IV S4 011 Storage Tank Ves III 55 Insulating 0,1 No III 5(, Flow senSitive conserva[Qr isolation valve No It ....

57 On-i.one onsulating OIl dryong,system No II" 58 On line DCA & MOl<turc Analyzer No lJu

59 WAMS{PMU & Accessones) Yes III 60 FO Cable , Yes II I 6 1 R~-rol!er' ofMS/HT Angle Section and Yes IV

gd lvantzed Lower parts, 62 Hardwilre t1umgs & Ea_rthwm:~ ACCl;~ssones I Yes IV 63 OPGW&HjW I Yes III 64 BoilS & Nuts Gr up LO 5.6/5 Yes II 65 Bolts & Nuts orGr R.1l I 8 I Yes IV 66 D-shackle/ Hanger / Links Yes IV 67 Danger Plat" IPh.s" Plate I Nllm her Plate / No I

C,rcu,I plate 68 Pipe Ty pe & Counter POIse Earlhlllll No II 69 Sp rong Washer No II 70 ACD & "orbed wire for ACD/S,rd guard I No II

1 L'thll i l- JI .... r ... ·\:llil . 11 11 It (I I ~ I 1 \: I ,t, ~I I I ' td 'U I'n . \; I '-Il l I I

PAGE 68

SI. No_

71 72 73 74 75 76 77

78

80

81 82

93 94 95 96 97 98 99 100 101 102 103 104

Note: •

SeClron-3

SECTION-G ENERA! TECHNICAl. REOIlI REMENTS (GIl!!

Annexure-G

Item / Equipment Requirement of Inspection MQI'/ITP/FAT Level

Span Marker & Obstruction Light No III GIS including spares Yes IV GIS Bus Duct Yes IV GIS Bushing Yes IV SF6 Gas processing Unit No II Partial Discharge Monitoring System No II STATCOM including Valve. valve base Yes IV electronics, DC capacitor, series reactor and all accessories Mechanically switched Reactor bank (3-ph) Yes IV including all accessories (MSR Branches) Mechanically switched Capacitor bank (3-ph) Yes IV including all accessories (MSC Branche~) Pass Harmonic filters Yes IV Valve cooling system Yes III FODP including pigtail No II Radio link Telecom Yes III Hardware Fittings for Fibre Optic approach Yes III cable SOH Equipments (ADM). PDH, Primary Yes IV Multiplexer Drop & Inse rt Multiplexer Yes IV DACS Yes IV Main Distribution Frame No I HOPE Pipe No II NMS, TMN Yes IV Synchronization Equipment No Level-I HT Capacitor Yes IV PLC Capacitor Yes III 48V DCPS Yes III Nitrogen Inj ection system Yes III Foundation/ Anchor bolts Yes III EDT crane/Lift No II Optical Signal Column No II Maintenance Platform No II Spark Gap Yes III Thyristor Valve Yes III DC current & voltage measuring device ITP III Furniture No I

MICC for test and measuring equipment sball be issued only after actual verification/demonstration of satisfactory performance at site_

.... Though level-2 items, CIP can be issued also on review of TCs and visual inspection of these items.

rL!chmrni Spc;;lfic:Hlun: (jTR ( ~NGG.SPEC!GTR (Rev. No. :-!4 . .1 o:m'l7 ,

PAGE 69

SECTION - (SE) SWITCHYARD ERECTION

ANNEX C1

CORONA AND RADIO INTERFERENCE VOLTAGE (RIV) TEST

1. General

Unless otherwise stipulated , all equipment together wIth its associated connectors. where apphcable , shall be tested for external corona both by observing the voltage level for the extinction of vIsible corona under failing power frequency voltage and by measurement of radio Interference voltage (RIV) .

2. Test levels:

The lest voltage I ~vols for measurement of exlornal RIV and for coron~ extlncllon voltage Bre listed under the relevant clauses of the specification .

3. Test Methods for RfV:

J 1 RIV tesls shall be made according to measunng CIrCUit as per Inlernaltonal SpeClal-Committee on Rad iO Imerlerencte (CISPR) Publication 16-1(1993) Part -1 . The measunng circu~ shall preferably be tuned to frequency WIth 10% of 0.5 Mhz but other frequencies In the range of 0.5 MHz to 2 MHz may be used, Ihe measunng frequency being recorded, The r"su llS shall be In microvolts.

3.2 Alternatively, RIV lests shall be In accordancte with NEMA standard Pubhcatlon No. 107-1964, except otherwIse noted herein.

3.3 In measurement of, RIV , lemporary addi tIonal external corona shieldIng may be proVIded. In measurements 01 RIV onty standard fittings of identiC<l1 type supphed With the equlpmenl and a slmulaUon of the connect ions as used In the actual insta llation will be permitted In the vicintly wi th.n 3.5 meters 01 terminals .

3.4 Ambient nOise shall be measured before and after each series of tests to ensure Ihal there is no variahon III ambIent nOise level. If vanatlon IS present. the lowest ambIent nOIse level Wil l form basis for the meaSurements. RIV levels shall be measured at Increasing and decreaSing voltages of 85%, 100% and 110% of the specified RIV test voltage for all eqUipmenl unless otherwIse specified. The specified RIV test voltage for 765kV, 400kV, 220k V IS hsted in the detailed specificatJon together WIth maximum permissible RIV level In microvolts.

3.5 The metering Instruments shall be as per CISPR recommendallon or eqUiva lent deVice so long as It has been used by other tesllng au lhorl tles ,

3.6 The RIV measurement may be made with a nOIse meter. A ca libration procedure of the frequency 10 which noise meter shall be tuned shall estabhsh the ratio of voltage at the high voltage terminal to voltage read by noisei meter.

,r. . Test Methods for Visible Corona [applicabl e for 400kV and above]

The purpose of this test is to determine the corona exttnction vollage of apparatus, conneClors etc. The test shall be camed out In the same manner as RIV test described above wilh the exception thaI RIV measuremenls are not reqwred during test and a search technique shall be used near the onset and extlnclion voltage, when the test voltage is raised and lowered to determine Iheir precise values. The test voltage shall be raised to 1 t 0% of RIV test voltage and maintained there for live minutes. In case corona incephon does not take place at 110% lest sha ll be stopped, otherwise tesl sha ll be continued and the voltage will then be decreased slowly until all VISible corona disappears. The procedure shall be repeated at least 4

Technical Specification. Section : SE PAGE 70 Page - 44 of 58 C I ENGG I SPEC I SE REV. NO. 10 (Apr'1 6)

SECTION - (SE) SWITCHYARD ERECTION

ANNEX C1

times with corona inception and extinction voltage recorded each time. The corona extinction voltage for purposes of determining compliance with the specification shall be the lowest of the four values at which visible corona (negative or positive polarity) disappears. Photographs with laboratory in complete darkness shall be taken under test conditions, at all voltage steps i.e. 85%, 100%, and 110%. Additional photographs shall be taken at corona inception and extinction voltages. At least two views shall be photographed in each case using Panchromati c film with an ASA daylight rating of 400 with an exposure of two minutes at a lens aperture of f15.6 or equivalent. The photographic process shall be such that prints are available for inspection and comparison with conditions as determined from direct obseNation. Photographs shall be taken from above and below the level of connector so as to show corona on bushing, insulators and all parts of energised connectors. The photographs shall be framed such that test object essentially, fills the frame with no cut-off.

In case corona inception does not take place at 110%, voltage shall not be increased further and corona extinction voltage sha ll be considered adequate.

4.1 The test shall be recorded on each photograph. Additional photograph shall be taken from each camera position with lights on to show the relative position of test object to facilitate precise corona location from the photographic evidence.

4.2 In addition to photographs of the test object preferably four photographs shall be taken of the complete lest assembly showing relative positions of all the test equipment and test objects. These four photographs shall be taken from four points equally spaced around the test arrangement to show its features from all sides. Drawings of the laboratory and test set up locations shall be provided to indicate camera positions and angles. The precise location of camera shall be approved by Purchaser's inspector, after determining the best camera locations by trial energisation of test object at a voltage which results in corona.

4.3 The test to determine the visible corona extinction voltage need not be carried out simultaneously with test to determine RIV levels.

4.4 However, both test shall be ca rried out with the same test set up and as little time duration between tests as possible . No modification on treatment of the sample between tests will be allowed. Simultaneous RIV and visible corona extinction voltage testing may be permitted at the discretion of Purchaser's inspector if, in his opinion, it will not prejudice other test.

5. Test Records:

In addition to the information previously mentioned and the requirements specified as per CISPR or NEMA 107-1964 the following data shall be included in test report:

a) Background noise before and after test.

b) Detailed procedure of application of test voltage.

c) Measurements of RIV levels expressed in micro volts at each level.

d) Results and obseNations with regard to location and type of interference sources detected at each step.

e) Test voltage shall be recorded when measured RIV passes through 100 microvolts in each direction.

f) Onset and extinction of visual corona for each of the four tests required shall be recorded.

Technical Specification, Section: SE PAGE 71 Page - 45 of 58 C 1 ENGG 1 SPEC 1 SE REV. NO: 10 (Apr'16)

TECHNICAL SPECIFICATION 420KV and 245KV Current Transformer

Page No. 1 of 6

SECTION – V

I.CHECK LIST FOR 420KV CURRENT TRANSFORMER

SNo. Parameters Data YES/NO Remarks 1. Manufacturer's type designation Bidder to furnish in

Remarks.

2. Type of CT a) Insulation ( As per clause 2.3 of

section-II) i. SF6

YES/NO

ii. Oil YES/NO

b) Installation Outdoor YES

c) Mounting Upright mounting on steel structure

YES

d) Tank design i. Live tank

YES/NO

ii. Dead tank YES/NO

3. Standards Applicable Latest version of IEC-61869-1 & 61869-2 or IS-2705 Part 1 to 4

YES

4. Rated Voltage (kV rms) 420KV YES 5. Rated Primary Current 3000A with 120%

Extended current YES

6. Rated short time thermal withstand current

40KA for 1 Sec or 50KA for 1 Sec (As applicable as per Section-1, Clause 2)

YES

7. Rated dynamic current 100kAp /125kAp /157.5kAp as applicable

YES

8. Max. Temperature rise over design ambient temperature

As per IEC YES

9. Full wave impulse withstand voltage (1.2/50microsecond) between line terminals and ground (kV Peak)

± 1425 YES

10. Switching impulse withstand voltage (250/2500microsecond)(dry and wet) between line terminals and ground (kV Peak)

± 1050

YES

11 One minute power frequency dry withstand voltage (dry and wet) between line terminals and ground (kV rms)

630 ( dry only) YES

12. One minute power frequency withstand voltage between secondary terminals and earth (kV rms)

5kV YES


Page No. 2 of 6

SNo. Parameters Data YES/NO Remarks 13. Max. radio interference voltage for

frequency between 0.5MHz and 2MHz at ( Micro volts)

1000 μV at 266kV rms

YES

14. Minimum Corona extinction voltage (kVrms)

320 YES

15. Seismic acceleration (Horizontal) 0.3g YES

16. Minimum Creepage distance (mm) 10500 YES 17. System neutral earthing Effectively earthed YES 18. CT Core details complies to

requirement under Table –IIB of TS Section-2

YES

19. CT Insulator Polymer insulator YES 20. CT shall have cantilever strength not less

than- 500kG YES

21. Offered CT has been provided with oil filling and drain plugs, Oil sight glass

YES

22. If SF6 gas filled CT is offered Suitable SF6 gas density monitoring device with NO/NC contacts to facilitate remote annunciation and tripping in case of SF6 gas leakage.

YES

Provision for online gas filling

YES

Suitable rupture disc to prevent explosion provided.

YES

SF6 gas shall comply with IEC-60376, 60376A, 60376B & IEC-60480

YES

23. If Oil filled CT is offered Insulating oil shall be of EHV grade and conforms to IS-335, IEC-60296 ( required for First filling) .

24. Secondary terminal box As per Section –III YES


Page No. 3 of 6

SNo. Parameters Data YES/NO Remarks 25. In case of inverted ( Live tank ) type Bellows made of

stainless steel shall be used at the top for hermetic sealing of CT.

YES

26. Offered CTs shall be with necessary mounting hardwares for mouting on steel structures.

YES

27. Terminal connectors are not in scope of bidder

YES

28. Test requirement As per clasue 6.0 & 9.0 of Section-II and clause 8.0,9.0,10.0 of Section –III

YES

29. Compliance to Defect liability requirement

As per Clause 10.0 of Section –II

YES

30. Pre-/post commissioning procedures and formats to be followed

As per Doc CF/CT/04/R-4 dtd 01-04-2013 under Powergrid document No D-2-01-03-01-04

YES

31. Supervision of testing & Commissioning of CT

As per clause 2.0, h. of Section –I

YES

32. Bidder shall supply 2No. Oil sampling device for each substation namely Itarsi S/s, Rajgarh S/s, Champa S/s, Jabalpur S/s. Price for same is included in quoted in price of main item of each substation.

YES

33. Documentary proof against technical qualifying requirement under Annexure-A1&A2 of Section –I

Attached along with offer.

YES

34. Bidder to confirm if Powergrid approved drawings,MQP/ Previous Powergrid approval for the offered CTs are available for approval extension.

If Yes , bidder shall submit the powergrid approval letters along with offer .

YES


Page No. 4 of 6

SECTION – V

II. CHECK LIST FOR 245 KV CURRENT TRANSFORMER

SNo. Parameters Data YES/NO Remarks 1. Manufacturer's type designation Bidder to furnish in

Remarks.

2. Type of CT e) Insulation ( As per clause 2.3 of

section-II) iii. SF6

YES/NO

iv. Oil YES/NO

f) Installation Outdoor YES

g) Mounting Upright mounting on steel structure

YES

h) Tank design iii. Live tank

YES/NO

iv. Dead tank YES/NO

3. Standards Applicable Latest version of IEC-61869-1 & 61869-2 or IS-2705 Part 1 to 4

YES

4. Rated Voltage (kV rms) 245KV YES 5. Rated Primary Current 1600A with 120%

Extended current YES

6. Rated short time thermal withstand current

40KA for 1 Sec (As per Section-1, Clause 2)

YES

7. Rated dynamic current 100kAp /125kAp as applicable

YES

8. Max. Temperature rise over design ambient temperature

As per IEC YES

9. Full wave impulse withstand voltage (1.2/50microsecond) between line terminals and ground (kV Peak)

± 1050 YES

10. Switching impulse withstand voltage (250/2500microsecond)(dry and wet) between line terminals and ground (kV Peak)

-

YES

11 One minute power frequency withstand voltage (dry and wet) between line terminals and ground (kV rms)

460kV YES

12. One minute power frequency withstand voltage between secondary terminals and earth (kV rms)

5kV YES


Page No. 5 of 6

SNo. Parameters Data YES/NO Remarks 13. Max. radio interference voltage for

frequency between 0.5MHz and 2MHz at ( Micro volts)

1000 μV at 156kV rms

YES

14. Minimum Corona extinction voltage (kVrms)

- YES

15. Seismic acceleration (Horizontal) 0.3g YES

16. Minimum Creepage distance (mm) 6125 YES 17. System neutral earthing Effectively earthed YES 18. CT Core details complies to

requirement under Table –IIC of TS Section-2

YES

19. CT Insulator Polymer insulator YES 20. CT shall have cantilever strength not less

than- 350 kG YES

21. Offered CT has been provided with oil filling and drain plugs, Oil sight glass

YES

22. If SF6 gas filled CT is offered Suitable SF6 gas density monitoring device with NO/NC contacts to facilitate remote annunciation and tripping in case of SF6 gas leakage.

YES

Provision for online gas filling

YES

Suitable rupture disc to prevent explosion provided.

YES

SF6 gas shall comply with IEC-60376, 60376A, 60376B & IEC-60480

YES

23. If Oil filled CT is offered Insulating oil shall be of EHV grade and conforms to IS-335, IEC-60296 ( required for First filling) .

24. Secondary terminal box As per Section –III YES


Page No. 6 of 6

SNo. Parameters Data YES/NO Remarks 25. In case of inverted ( Live tank ) type Bellows made of

stainless steel shall be used at the top for hermetic sealing of CT.

YES

26. Offered CTs shall be with necessary mounting hardwares for mouting on steel structures.

YES

27. Terminal connectors are not in scope of bidder

YES

28. Test requirement As per clasue 6.0 & 9.0 of Section-II and clause 8.0,9.0,10.0 of Section –III

YES

29. Compliance to Defect liability requirement

As per Clause 10.0 of Section –II

YES

30. Pre-/post commissioning procedures and formats to be followed

As per Doc CF/CT/04/R-4 dtd 01-04-2013 under Powergrid document No D-2-01-03-01-04

YES

31. Supervision of testing & Commissioning of CT

As per clause 2.0, h. of Section –I

YES

32. Bidder shall supply 2No. Oil sampling device for each substation namely Itarsi S/s, Rajgarh S/s, Champa S/s, Jabalpur S/s, Itarsi S/s. Price for same is included in quoted in price of main item of each substation.

YES

33. Documentary proof against technical qualifying requirement under Annexure-A1& A2 of Section –I

Attached along with offer.

YES

34. Bidder to confirm if Powergrid approved drawings,MQP/ Previous Powergrid approval for the offered CTs are available for approval extension.

If Yes , bidder shall submit the powergrid approval letters along with offer .

YES

specification-420-245kv-ct-1583727729.pdf - BHEL

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Transcript of specification-420-245kv-ct-1583727729.pdf - BHEL