OCC Meeting of Operation Coordination Committee to be held ...

Agenda for 144th OCC Meeting to be held on 12.06.2018 at Bangalore

Southern Regional Power Committee Bengaluru Agenda for the 144th OCC Meeting of Operation Coordination Committee

to be held on 12.06.2018 at SRPC, Bengaluru

1 Confirmation of the Minutes of the 143rd Meeting of OCC of SRPC held on 15th

May 2018 at Hyderabad.

2 Monthly Outage Plan/ Annual Outage Plan

2.1 ISGS/CGS: Generating Units

a) Shut Down Proposals for June/July 2018

b) Shut Down carried out during May 2018 along with reason for deviation, if any.

Outages of NPCIL Units in Peak Demand period

KKNPP had informed that Unit II will be coming on bar by 4th week of June 2018.

KKNPP was requested to follow-up the response to the Chairperson SRPC’s letter

to CMD, NPCIL on the request of states to bring back the unit only in September

2018/or agreeing for part load operation.

TANTRANSCO to take up the issue with KKNPP to pre-pone the shutdown of

Unit-I (requested from 21st July 2018) to avoid two units on bars during the

low demand period.

Ramagundam Units VI and V(Annexure-2A): NTPC vide letter dated 29.05.2018

had requested to concur for the reschedule the Annual Maintenance of Unit VI(

01.07.2018 to 30.07.2018 against the approved date 01.08.2018 to 30.08.2018)

and Unit V(16.08.2018 to 19.09.2018 against the approved date 15.06.2018 to

19.07.2018) based on the recommendation in the review Meeting held on

21.05.2018 under Chairmanship of Secretary(Power).

Simhadri Units III and IV (Annexure-2B): NTPC vide letter dated 19.05.2018 had

furnished the changes in Annual Outage Plan of Simhadri Units.

The following is to be noted in this regard:

In the AOP the outages were approved for Unit I-10.06.2018 to

24.07.2018(45 days) and Unit IV for 05.09.2018 to 09.10.2018(35 days)

In the 142nd OCC NTPC requested for concurrence of outage of Unit III from

05.05.2018 to 29.05.2018(to carry out first inspection of the LPT which was


not carried out since CoD) which was not in the original AOP and the same

was not approved.

Subsequently it was noted that the unit had been taken out on 05.05.2018

and yet to be revived. Expected revival is now informed as 08.06.2018.

NTPC vide letter dated 19.05.2018 requested for concurrence for early

Outage of Unit IV for early LPT inspection immediately after revival of Unit

III

NLC TS II Unit VI(Annexure-2C) : Vide letter dated 29.05.2018 NLCIL had

requested for shifting of the Unit VI AOH to 11.06.2018 to 10.07.2018 against the

approved date 01.06.2018 to 30.06.2018 due to delay in receipt of spares.

Talcher Unit V(Annexure-2D): Approval was from 25.05.2018 to 08.07.2018 in

141st OCC Meeting. Based on the recommendation in the review Meeting held on

21.05.2018 under Chairmanship of Secretary(Power), NTPC is planning to

reschedule the shutdown. The exact date will be intimated seven days in advance

and will be taken out after SRPC concurrence.

2.2 Request for approval of shut down

All utilities are to submit the S/D proposals for the subsequent month by 3rd of

the current month. Shutdown requests for the same month needed to be

avoided. An outage coordination group had been created

([email protected]) for review of the previous OCC

approved shut downs (construction/critical).

Non-availing the OCC approved shut downs

CT Ratio change request from SLDCs: Powergrid, SR II had informed that

incidents have come up wherein SLDCs are approaching PGCIL for CT Ration

change. It is requested that SLDCs may kindly issue needful instruction from

RLDCs. New E-mail IDs from SRLDC for intimating the system reconfiguration,

restoration etc is yet to be informed.

PGCIL, SR II had furnished their views on certain outage related issues which is

at Annexure-2E

3.1 LGBR for upcoming five months

3.2 TTC/ATC computations

3.2.1 All states were requested to furnish PSSE base case for October 2018.

mailto:[email protected]


5 months LGB, Converged PSSE base case, ATC/TTC computation furnished

to SRLDC,ATC, TTC computation posted on SRLDC website and Nodal officer

details

3 Review of Power Supply Position /Inflows

Constituents/ Generators to furnish the reasons for deviation:

a) Actual with respect to anticipated (MW & MU) for availability and requirement.

b) Generation variation category wise with respect to MoP targets/LGBR figures.

c) Inflows (MU) to major reservoirs: Actual w.r.t. 10 year moving average and

w.r.t. same month last year.

d) Reasons for demand -supply gap and its variation

4 MAJOR ISSUES

5.1 Obtaining consent of original beneficiaries in case of diversion of coal under Flexibility Scheme.

CEA, FM Division vide letter dated 15.05.2018(Annexure-5A) had requested

SRPC to furnish the losses incurred by the beneficiaries of the NTPC(Simhadri

TPP) during the period coal was diverted by NTPC to other plants without taking

consent of the original beneficiaries as decided in the Meeting held on 23.04.2018

at CEA, New Delhi.

SRPC vide letter dated 18.05.2018(Annexure-5B) had submitted the information

sought by CEA.

5.2 Observations of the Techno Group with regard to the proposals of Installation of Capacitors.

Convener, TESG & Consultant, NLDC vide letter dated 21.05.2018(Annexure-5C)

had furnished the extracts of the 38th Meeting of TESG held on 26.02.2018 and had

requested for needful on priority with regard to observations. With respect to SR it

was mentioned that the Capacitor Study Report submitted by SRPC prepared by

CPRI deal only with transmission level(132 kV and 220 kV voltage level) whereas

requirement was also for distribution level(33 kV and 11 kV).

SRPC vide letter dated 29.05.2018(Annexure-5D) had submitted the reply in this

regard to Member Secretary, Appraisal Committee

5.3 Geo-tagging of Wind turbines

NIWE is in process of carrying out Geo-Tagging/Online registry of wind turbines for

maintaining a centralized system of data base. NIWE Vide letter dated

09.05.208(Annexure-5E) had communicated the concept note on geo-tagging


finalized based on the two meetings with SNAs, IWTMAs and other stake holders.

SRPC was requested to revert back with suggestions/clarifications, if any.

SRPC vide letter dated 18.05.2018(Annexure-5F) had replied to NIWE in this

regard.

5.4 Sub-Group to finalize the standard procedure for cyber security audits

A Special Meeting on compliance of CERC(Communication System for Inter-State

transmission of Electricity) Regulations, 2017 was held on 08.05.2018 at SRPC. A

sub group meeting to finalize the standard procedure on Cyber Security is

scheduled at SRPC on 13.06.2018. The procedure being followed by the entities

was to be shared in the web group (communication-audit-discussion-forum---

[email protected]).

APTRANSCO/TSTRANSCO had furnished the Executive Summary of Vulnerability

Assessment.

Further the list of communication channels including PLCC and terminal

equipments in the intra-state and inter-state which would come under the ambit of

the Audit would be furnished to SRPC by 31.05.2018(The format is attached as

Annexure of the Minutes of the Meeting available at SRPC website) was to be

furnished which would be reviewed in the sub-group Meeting.

5.5 Talcher RTU issue

It was noted that NTPC Talcher had procured a new RTU with a dual porting

reporting system(ERLDC and SRLDC) and the link to ERLDC had already

established. Link to SRLDC is yet to be established. SRPC vide letter dated

24.05.208(Annexure-5G) had addressed to NTPC Talcher and had requested to

ensure that the link is established.

5.6 Power Number for the year 2018-19

Power Number Calculation for SR states for the year 2018-19 (based on the actual

consumption and Maximum Demand(Month wise) figures during the year 2017-18)

is at Annexure-5H .It is to be noted that these new power numbers will be used for

frequency correction in PSP and other reports.

The new power number are as follows :

AP: 301, TS:328, KAR:355, KER: 129, TN:524, Pudu:13. (Total SR: 1650)

SRPC vide letter dated 18.05.2018(Annexure-5I) had requested CEA to kindly

intimate the UFR quantum to be adopted by SR in the current Grid Environment.

CEA, NPC reply in this regard is at Annexure-5J




5.7 Low Voltage issues in SR States

After deliberations in the 143rd OCC Meeting on the issue of low voltage prevailing

in some of the nodes of Karnataka, Kerala and Tamil Nadu the following were

noted:

UV Relay logic is to be changed by KPTCL. After tripping of 25 MW at 3rd minute,

50 MW would be tripped at 6th minute, 75 MW at 9th minute and 100 MW at 12th

minute. This will be done on the same set of 100 MW loads identified in Stage I.

With respect to low voltages and implementation of UV relays at Madakathra,

Kozhikode, Kochi and Palakkad in Kerala a VC will be conducted at 1500 hrs on

18.05.2018 (Friday).01.06.2018.

System Studies will be carried out regarding low voltage in Somanhalli / Hoody /

Nelamangala (Bengaluru ring) before month end. The study would also cover the

reactive drawal pattern of KPTCL.

TANTRANSCO to revert back on the low voltage issues on 12.04.2018 and

13.04.2018 along with the action plan to mitigate the low voltage scenario by end

of May 2018.

5.8 Coal Stock position

SRLDC had made a link (https://goo.gl/y3LL4n) to enter the coal status and the

information has to be furnished before 06:00 hrs every day

In the 143rd OCC Meeting after deliberations on the low coal stock

Generators/GENCOs were requested to furnish the issues in coal receipt w.r.t

Railways as well as Coal Companies so that Chairperson SRPC may be

requested to take up with Railway Board and Coal Companies/Ministry.

APTRANSCO/NTECL had furnished the details.

5.9 Signing of Agreement / MOU between Powergrid and Constituents for Replacement of S-900 RTUs in Northern Region

SR-I/SR-II had agreed to furnish the details of S-900 RTUs which are to be

replaced before 144th OCC meeting.

SRPC vide letter dated 24.05.2018(Annexure-5K) had communicated the

concern to ED(LD & C), PGCIL and requested that a review exercise regarding

this may kindly be taken up for SR also.

https://goo.gl/y3LL4n


5.10 Internet connection for Patch Management and Remote Diagnostics support for URTDSM project

In the 143rd OCC Meeting SR II had agreed to communicate regarding

requirements to SRLDC.

Subsequently SR II had informed that SRLDC may extend the internet

connection at their premise and the amount to be recovered. SRLDC may kindly

intimate for recovery from GE.

5.11 Scheduling of Ramagundam NTPC Solar Plant

The matter regarding scheduling of Ramagundam Solar Plant had been under

discussion in the SRPC forum for quite some time. SRPC vide letter dated

20.04.2018 had requested NTPC to update on the present status and also

arrange for the immediate action for scheduling of this plant by SRLDC.

In the 143rd OCC Meeting it was decided that NTPC Ramagundam Solar

Scheduling will be carried out by SRLDC from 01.07.2018. All the

requirements facilitating the scheduling needed be carried out by NTPC.

SRPC vide letter dated 24.05.2018(Annexure-5L) had requested RED, NTPC

that necessary instructions may kindly be arranged to be issued for timely

compliance of the OCC decision.

5.12 Kudgi - RSD Procedure

It was noted that SRPC vide letter dated 16.04.2018 had furnished the

comments TM/RSD procedure to CERC. NTPC Kudgi vide letter dated

19.05.2018 (Annexure-5M) had requested SRPC to kindly include the

requirement of 35 hours for bringing back a super critical unit from RSD in the

feedback submitted to CERC in regard to detailed procedure on RSD.

5.13 Enhancement of net exportable quantum for SEIL (2 x 660 MW)

SEIL vide letter dated 22.03.2018 had requested that Net Exportable Capacity

Quantum for SEIL Unit(s) may please be updated and recorded as 1254 MW

(627 MW each unit) against 1240(620 each). The issue had been deliberated in

the 142nd/143rd OCC Meetings. It was noted that Mr Anil Thomas (SRPC) and

Mr Pradeep Reddy (SRLDC) under the leader ship of Shri V. Suresh, GM,

SRLDC would finalize the methodology/procedure to be followed in this regard.

RGMO compliance as per IEGC provisions was to be ensured.


SRPC had informed that in line with CERC Order (WR & ER), PPA wise DC

has to be furnished by all ISGS. CERC Order was to be complied.

SRLDC vide letter dated 28.05.2018(Annexure-5N) had requested all the IPPs

in SR to furnish the PPA wise DC detail(in the format attached with the letter) in

respect of CERC Order dated 31.08.2017 on Petition on No, 28/MP/2016.

5.14 Ramp Rates

In the 143rd OCC Meeting it was felt by the forum felt that the issue was

significant as RE penetration was increasing day by day and SRPC could take

up the issue with CERC in this regard. In the interim period all the ISGS

generators were requested to give a ramp rate of 0.5% minute or more in the

next RRAS Form. The same ramps would be utilized for scheduling.

Subsequently SRPC vide letter dated 23.05.2018(Annexure-5O) had taken up

with ISG stations and had requested that this matter may kindly arranged to be

examined urgently and necessary instructions for upward revision of the ramp

rates issued under intimation to SRLDC and SRPC.

SLDC needed to floow up the similar provisions for state embedded generators.

5.15 Simhadri – Kalpakka- Gazuwaka Power Corridor Loading Issue on 23.04.2018

NTPC had furnished the observation from Simhadri site that during the

Kalpaka-Simhadri-line-2 shut down on 23.04.2018. A discussion was scheduled

on 30.05.2018 at SRLDC.

5.16 Utilization of RE Generators for Reactive Compensation & High Voltage

SRPC vide letter dated 24.05.2018(Annexure-5P) had circulated a Note

regarding MVAR power restrictions/support from RE generators. -It was felt that

suitable penal rates/incentives may need to be in place for RE generators also

in the interest of smooth grid operation. All the states had been requested to

give their comments in this regard so as to help in to arrive at consensus on this

matter in Southern Region and to take the matter further.

SRPC vide letter dated 24.05.2018(Annexure-5Q) had taken up the issue of

reactive power support by the generating stations including RE with CERC.

TSSLDC vide letter dated 09.05.2018(Annexure-5R) had requested to clarify

whether state utilities and distribution utilities can be addressed to include

suitable clause in the connectivity conditions, that models figuring in the RLMM

list are added to the Grid.


SRPC vide letter dated 28.05.2018(Annexure-5S) had informed that in the

Guidelines issued by MNRE for development of Onshore Wind Power Projects it

had been mandated that no wind turbine model shall be allowed for installation

in the country until it has obtained type and quality certification. MNRE has

stipulated verification of complete certificates of the models etc which needs to

be carried out by the concerned procurement agency.

5.17 CEA Regulations Compliance for solar generators

The issue was discussed in the meeting at NIWE, Chennai on 23.04.2018

Forum strongly felt that there was a need for an enabling agency similar to

NIWE to ensure compliance of CEA Regulations for solar generator as the solar

targets were significant and the addition was at a rapid pace.

SRPC Chairperson vide letter dated 09.05.2018 had taken up the issue with

Secretary, MNRE.

5.18 Daily Load Forecasting by SLDCs/RLDCS/NLDC

SRLDC to present the error (forecast Vs actual demand) for the month of May

2018

States had been requested to break the state load into sub components like

district wise/substation wise while carrying out the forecasting incorporating

weather conditions etc.

5.19 SPS Mock Tests

A mock test to check the healthiness of KKNPP & Talcher-Kolar SPSs was

carried out on 21.05.2018 and for Raichur -Sholapur SPSs on 22.05. 2018. It

was agreed that a comprehensive report on the SPSs to be shifted to Raichur

and SPSs being retained at Kolar would be furnished by SR-I and SR-II to all

the states/UT, SRPC and SRLDC. States would also communicate the

corresponding load to the mapped to the respective SPSs. The location of new

DTPCs would also be coordinated in the exercise.

SRLDC had submitted the Reports on Mock Test carried out for SPS of KKNPP

Unit I & II & Talcher-Kolar on 21.05.2018 and on 22.05.2018 (Annexure-5T).

KSEBL vide letter dated 23.05.2018(Annexure-5U) had furnished the

details/observations of the test w.r.t KSEBL.

Load Grouping of SPS schemes are at Annexure-5V


5.20 Task Force Committee Report on Flexibilisation of Thermal Power Plants-Unit identification for Pilot project demonstration

In the meeting in CEA held on 08.02.2018 it was decided six units, including

two units of NTPC and one unit each from DVC, GSECL, APGENCO, MSPGCL,

would be taken up for 55 % minimum load operation in line with the CERC

notification.

In the earlier OCC Meeting APGENCO informed that they were examining

the unit which could be identified for flexibility. APGENCO would get in

touch with CEA in this regard.

CEA vide letter dated 10.04.2018 had requested for Location of installed

capacity of all current renewable energy sources and location of anticipated

RES installations by 2022.

All the states are requested to furnish the location of installed capacity of all

current renewable energy sources and location of anticipated RES installations

by 2022.

5.21 Data required for development of Geospatial Energy Map of India

The data required(as per CEA letter dated 04.05.2018) for development of

Geospatial Energy Map of India is to be shared with CEA to email cedpd-

[email protected]. by all the concerned entities latest by 31.05.2018. SLDCs were

kindly requested to communicate the requirements to DISCOMs and other

entities in the control area.

5.22 Overarching Agreement

It was noted that Overarching Agreement in SR had been signed by all states in

SR except Tamil Nadu. In various forum of SRPC, constituents had been

requested to make use Overarching Agreement. User name and password

details were to be collected from SRLDC. Hands on experience to process

the application could be coordinated with SRLDC.

TN had been requested to also kindly sign the Agreement.

5.23 TTC assessment considering temperature dependent rating of lines/terminal equipment: Status update

5.24 Certification of availability of Transmission system of Inter State/RPC certified lines

KSEBL vide letter dated 23.05.2018(Annexure-5W) had submitted some

queries related to Certification of availability of Transmission system.

5.25 Automatic Generation Control(AGC) (Refer Item No. 4 in the Minutes of 7th NPC Meeting)

AGC implementation status update for Simhadri and N P Kunta.




5.26 Common Transmission System Data Base (Refer Item No. 5 in the Minutes of 7th NPC Meeting )

In the 7th NPC Meeting held on 8th September 2017, NPC had emphasized the

need for having an accurate All India power system data base for carrying out

accurate power system studies for operational and planning horizons.

POSOCO was to prepare requires formats and circulate to all RPCs and in turn

RPCs may obtain data from their constituents. It was noted that NLDC had

furnished the formats to NPC.

5.27 State-wise allocation of 540 MW power from RGPPL to Railways

Telangana(SCR)-50 MW, Tamil Nadu(SR)- 100 MW : Status update.

5.28 Compliance of CEA Regulations for Grid connectivity of Renewable Energy Sources

The following was the updated status on RE SCADA availability as noted in the

143rd OCC Meeting:

SCADA availability as on 30.04.2018 Mapped I/C

Remarks

AP Wind: 3801.87/3965.87 MW (96.11%) Solar: 2003/2209.78 MW (90.64%) Total: 5662/6095.75 MW (94.15%)

Pending SCADA availability was for RE connected distribution level and for which action had been taken for compliance.

TS Wind: 100.8/100.8 MW (100%) Solar: 3023/3257 MW (92.82%) Total: 3123.8/3357.8 MW (93.03%)

Action for balance SCADA availability at 33 kV and below was being followed up and notices had been issued.

KAR Wind: 4398.895/4419.695 MW (99.53%) Solar: 4409.56/4848.55 MW (90.95%) Total: 8808.45/9268.25 MW (95.04%)

KER Wind: 16/59.3 MW (26.99%) Solar: 71.18/90.858 MW (78.34%) Total: 87.18/150.133 MW (58.07%)

TN Wind: 7988.96/8152 MW (98%) Solar: 648/1918 MW (33.79%) Total: 8636.96/10070 MW (85.77%)

Notices had been issued for SS under 10(1) for SCADA availability. 100% SCADA availability of wind would be ensured. TANTRANSCO (Communication) and TANGEDCO (Metering) had jointly initiated action for Solar SCADA availability and was targeted to be completed by July 2018.


A Special Meeting was convened under Chairmanship of Member Planning at

Jaipur on 04.05.2018 on the Real Time data Availability of RE Generation.

Minutes of the Meeting had been circulated and are available at CEA website.

The following may be noted:

100% data availability need to be ensured. The states to ensure that the target of 100% real time generation data is achieved in next two months.

The status of how many of the pooling stations are connected for communication of data and the percentage of availability of Communication link/system should be monitored and reported on a weekly basis. The format for the same in attached at Annexure-5X.

States can also interact with Gujarat for installation of Radio Modems, which have helped them in data acquisition from remote locations.

States which are facing problems in achieving 100% communication of RE generation data could emulate the approach adopted by the States like Gujarat, Madhya Pradesh, Karnataka, Telangana etc.

Central Electricity Regulatory Commission (Communication System for inter-State transmission of electricity) Regulations, 2017 which have come into force w.e.f. 1.7.2017 should be followed.

5.29 Monitoring of scheme funded from PSDF

In the 7th NPC Meeting (08.09.2017) and iIn the 6th Meeting of the Monitoring

Group of PSDF (05.01.2018) RPCs were further requested to examine the

implementation of schemes in OCC & TCC meetings and intimate NPC about

any bottlenecks.

. All the states/entities to kindly furnish the updated status.

5.30 PSS Tuning of generators

5th Meeting to review the status of PSS tuning of the generators had been

convened on 26th July 2017 and minutes of the Meeting are available at SRPC

website. All the generators need to follow the action plan finalized in the 5th PSS

meeting.

5.31 Prolonged Outage

KKNPP Second reactor will be commissioned by December 2018.

6.1 High Frequency

6.2 Low Frequency

6.3 Summary statement of different violation messages issued by SRLDC to each

constituent as per new IEGC Amendment.

6.4 In the 124th OCC Meeting it was suggested that SRLDC may identify incidents of

UD/OD for Analysis by States. SRLDC to furnish the incidence for analysis, if any.

7. VOLTAGE PROFILE

7.1 Low voltage


7.2 Details of Capacitors installed during May 2018. Details of the healthy/faulty

capacitors to be furnished. Capacitor requirement for the year 2018-19.

7.3 High Voltage

7.4 Status review of GT Tap positions (Refer Table-III)

7.5 MVAR Interchange/MVAR capability testing

All the SLDCs to kindly monitor VAR absorption/injection of generating units in

their respective control areas in real-time.

7.6 MVAR Testing summary

Concerned generators had been requested to furnish the status update on

recommendation of MVAR testing at the earliest on the Summary furnished by SRLDC.

7.7 High Voltage and MVAR Injection

Details of nodes of high voltage coupled with MVAR injection during October

2017 to January 2018 is given below:

Nodes with MVAR injection during V > 103%

AP KAR KER TN TS

Cuddapah Bidadi Kochi Alamathy Gajwel

Chittoor Munirabad Trivandrum

Kalavinthapattu Hyderabad

Gazuwaka Mysore

Karaikudi Khammam

Kurnool Madhugiri

Pugalur Mehaboobnagar

Nellore PG Nelamangala

S V Chatram Malkaram

NP Kunta Pavagada

Trichy Warangal

Vijayawada Raichur

Dichipally

Maheshwaram

In the Meeting it was noted MVAR injection at high voltage nodes - action taken report needed to be furnished before end of May 2018 and the issue would be discussed in 144th OCCM.

7.8 Status review of Bus/Line Reactors, Line Reactors and STATCOM

Status of implementation of Bus / Line Reactors approved in the Standing

Committee / SRPC pending for commissioning by the SR constituents.(Refer

table-IV)

7.9 Capacitor Installation status: (Refer table-V)

8 Network Protection/Security issues


8.1 U/F & df/dt Relays Schemes

In the 143rd

OCC Meeting it was noted that UFR & df/dt relief rrealization of TN

and TS was observed to be very less and was requested to kindly furnish the

details of the action plan to improve the visibility.

8.2 Status update of SCADA mapping of feeders of AUFR & df/dt schemes

State SCADA

mapped %

Status

AP 65.49 One RTU to be commissioned. Balance RTUs are covered under OPGW scheme approved through PSDF.

TS 79 6 RTUs had been provided for Solar Generators and for 17 RTUs, procurement was being taken up and it could take 4-5 months. There were 18 RTUs for Interstate feeders and some would provide UFR and df/dt relief quantum also. With this they were likely to achieve 100% mapping.

KAR 101

KER 119

TN 105 Additional RTUs needed to be procured for 100% SCADA mapping. Transducers to be procured.

Pudu 92

SR 88

8.3 RGMO/FGMO

RGMO implementation/ Extension of RGMO status point to SLDC (Refer Table-

VI of Appendix).

Feedback by generators on the observations in the 143rd OCC Meeting.

As per 5th Amendment to IEGC, gas stations above 50 MW Installed Capacity

were also to come under RGMO/FGMO Operation w.e.f. 1st October 2017.

SLDCs were requested to follow up for compliance of the Amendment. AP, TN

and NTPC (Kayamkulam) were requested to ensure compliance.

8.4 SRLDC vide letter dated 29.05.2018(Annexure-8A) had requested all the SLDCs

that the list of all hydro stations and gas stations which are covered under

FGMO/RGMO response along with the status clearly mentioning the CERC

order in case exemption/extension is received from Commission may be

furnished. The communication in this regard to LANCO Stage I & II is at

Annexure-8B


8.5 Special Protection Systems

SRLDC had submitted the list (Annexure-8C) of SPS signals to be extended to newly commissioned DTPC's as per discussions in 66th PCSC meeting of SRPC.

8.6 Automatic Demand Side Management Scheme (Petition No. 250/MP/2012) &

GSES (Petition No. 265/MP/2012)

Status update

8.7 Grouping of loads (IEGC clause 5.4.2 (e))

Regulations to be complied by all the concerned utilities.

9 LVRT Implementation

Quarterly reports to be furnished by the states.

Status update on SRLDC vide letter dated 29.11.2017.

10 Emergency Restoration System (ERS)

As per ERS requirement outlined in MoP letter dated 05.12.2014, status update

on ERS is given at Table VI of Appendix.

In the Meeting held under the Chairmanship of Secretary (Security) on 28th

June 2017 it was noted that ERS were in procurement stage in most of the

states and the response from the states was not very encouraging.

11 SCADA AND COMMUNICATION

A Special Meeting was held on 13.03.2018 to deliberate on pending

SCADA/Communication issues. Minutes of the Meeting is uploaded on SRPC

website. The status of pending Items as deliberated in the Special Meeting is at

Table VIII of Appendix.

12 TRANSMISSION NETWORK ISSUES AND SYSTEM OPERATION ISSUES

Over loading of ICTs and N-1 violation at Hoody, Vemagiri, Gazuwaka &

Nellore was being observed.

13 Black Start Procedure

Mockdrills conducted in May 2018.

Mockdrill Schedule for July to December 2018

Point to point mock exercise for black start by all constituents

KPTCL hd informed that black start for Nagjheri to BTPS will be carried out

after elections, if found possible.(SRLDC mail at Annexure-13A)

In the Meeting held on 11.01.2018 KGS had informed that Black Start Mock

Drill would be taken up during BSD of the units on similar lines to KKNPP.

Unit-I BSD was planned during July/August 2018.

MAPS vide E-mail dated 20.04.2018 had submitted the Procedure for

Restoration of 230 kV supply to MAPS switchyard after Grid Blackout MAPS

would conduct the mock drill under intimation to SRLDC/SRPC. It was noted

that MAPS unit-II BSD was planned during May/June 2018 shutdown.


14 Upcoming Generating Stations

Status update of Central sector and State Sector Upcoming generating

stations are at Table VII of Appendix.

Declaration of COD letter from SLDC was required to be submitted to CEA,

Fuel Management Division for purpose of coal linkages etc.

15 Any other point with the permission of the Chair.

16 Date and Venue of the next Meeting


Appendix Follow up Issues

1

ROW issue of 400 kV

Nelamangala-Hoody Line/

commissioning of 400 kV

Yelahanka substation/220 kV

evacuation system of KPTCL at

Yelahanka substation

PGCIL: Substation commissioned on 22.03.2018 by PGCIL, SR II KPTCL:6/16 sections(2.2 kM) cable

laying completed from Yelahanka

station end. 7th section excavation is

under progress. 3/16 cable jointing

work completed and cable trench and

joint bay excavation commenced from

PGCIL end. RCC duct from JB1 to JB 2

at PGCIL end has been completed.

2

REMC Project

(GOI) sanction had been received in

Sep 2017

First kick off Meeting for REMC project

implementation conducted on

01.11.2017

Site survey for SRLDC is carried out.

Implementation schedule was of 14

months.

SR II : Submission & approval of

Engineering documents is in progress.

03 modules of Training programs at

contractor's premises are completed

3 VC facility Puducherry to take up VC requirement

in 2018-19

5 Completion of Kamudhi bays at

Karaikudi by PGCIL

First bay charged.

407 Bay Pre-commissioning works for

Kamuthi Line-1 are likely to be

completed by 18.05.18 due to delay in

getting vendor support (because of

short notice given by TANTRANSCO)

In view of the above the following lines

can be taken into service on 07.05.18

after completion of TANTRANSCO

Works

1) 400kV Kayathar Line-2 (416 bay)

2) 400kV Kayathar Line-1 (413 bay)

3) 400kV Kamuthi Line-2 (410 bay)

4)Tentative date for commissioning of

400kV Kamuthi Line-1 is 31.05.18.(407

bay)


6 Operation of Nagarjunasagar /

Srisailam / Kadamparai units in

pump mode

Srisailam, two units were operating in

Pump operation during high frequency

period from 8th November 2017.

Maximum 4 Units are being put in

pump mode operation simultaneously.

6 units are capable of operating in

pump mode.

NSHES / TSGENCO Units 2 to 8 were

tested successfully in pump mode

operation and operating

Only 3 units can be operated

simultaneously due to some constraints

in suction side of the water conducting

system.

7 Condenser mode of operation of

Nagarjunasagar and Srisailam LB

All the 6 units at Srisailam operated in

condenser mode at different times.

During day time four units together also

had been operated in condenser mode.

At Nagarjunasagar all the units except

Unit IV and VI put in condenser mode

and four units simultaneously also

being operated at condenser mode.

8 Closing of 220 kV Upper Sileru-

Balimela line

Idle charged from 8th January 2015

from Upper Sileru end.

9

PMU Status

All the States were requested to give

the requirements for Second Phase to

CTU. KSEBL & APTRANSCO had

submitted the requirement.

10 Priority for Railways/Metros in the

matter of Restoration of Supply

TSTRANSCO had informed that

meters/communication equipment’s are

being procured.

TANTRANSCO had informed that

TANGEDCO was to enter into the

Agreement.

TABLE I PSS TUNING

SRT of following units had been analyzed upto 5th Meeting of PSS and

necessary action had to be taken as per Recommendations

Entity Generating Stations/Units


APGENCO Rayalaseema TPS U1 to U5; VTPS U1 to U4 & U7; SDSPP U1&U2(Reports to be analysed); Srisailam RB HEP U1 to U7; Lower Sileru HEP U1

AP IPP HNPCL U1 & U2

TSGENCO Nagarjunasagar HEP U1 to U8; Srisailam LB HEP U1 to U6; Kakatiya TPS U1 & U2; Kothagudem TPS U 7&8(Report to be analysed) U10 & U11; Singareni Collieries U1 &U2 (Reports to be analyzed)

KPCL Raichur TPS U1,2,3,5,6,7& 8; BTPS U1 to U3; Varahi UGPH HEP U1 to U4; Nagjheri HEP U1 to U6 (U6 report to be analyzed); Sharavathy HEP U1,2,3,4,5,6,7,9, 10 & 8 (Report to be analyzed), Raichur TPS U4 (Report to be analyzed)

KAR IPPs UPCL U1 & U2; JSWEL U1 to U3

KSEBL

TANGEDCO MTPS-I U1 to U4 (U1 Report to be analyzed); NCTPS St-I U1 to U3; Tuticorin TPS UI(Report to be analysed)U2 to U5; NCTPS St-II U1; Kadamparai HEP U1 & U2, Mettur-II (Report to be analyzed).

TN IPPs

CGS NTPC- Ramagundam U7 & U4 (reFport to be analyzed); NTPC-Simhadri U1 to U4; NTPC-Talcher STPS St-II U3 to U6; NTECL-Vallur TPS U1 to U3; NLC-Neyveli TPS II U4 to U7; NLC-Neyveli TPS II U1 to U3; KGS U2 (Report to be analyzed); NPCIL-KKNPP U1 & U2 (Report to be analyzed) ;NLC-Neyveli TPS II Exp. U1 & U2; (NLC & TN JV) NTPL U1; NTPC-Kudgi U1

ISTS connected IPPs

TPCIL U1 & U2 (U2 Report to be analyzed); Coastal Energen U2; IL & FS U1 & U2

For the following Units, PSS is to be tuned and SRT to be carried out / information not available.

Entity Generating Stations/Units

APGENCO VTPS U5 & U6; Lower Sileru HEP U2 to U4

AP IPPs

KPCL Yeramarus TPP

KAR IPPs JSWEL U4

KSEBL Idukki HEP U1 to U6

TANGEDCO NCTPS St-II U2; Kadamparai HEP U3 & U4

TN IPPs STCMS

CGS NTPC-Ramagundam U1, U2, U3, U5 to U6; NTPC-Kudgi U2; NLC-Neyveli TPS I Exp. U1 & U2 (SRT reports not submitted); NPCIL- KGS U1, U3 & U4 ( Full Report not submitted for U4); NPCIL-MAPS U1 & U2;

ISTS connected IPPs

Coastal Energen U1; Lanco Stage II & III; SGPL-Nellore; SEL U1 to U4; MEL U1 & U4


URTDSM UPDATES

Status as on 13.03.2018 Meeting Remarks

URTDSM Status Region: Approved/Installed/Integrated/Validated SR I SS 27/25/24 SR I PMU 113/104/98 SR II Supplied -: 142 Installed-:142 Integrated-: 142 Ready for validation-:140

Kaiga to extend the digital status

Supply and installation of APS- Auxiliary power supply system as part of URTDSM project

SR-II had intimated that the Auxiliary

Power Supply System is under

manufacturing and is expected to

reach site by 20thApril 2018 and

commissioning will be completed by

15th May 2018

AP and TS had expressed concern

regarding delay in supply of Auxiliary

power supply system. SR-I confirmed

that the APS System is expected to

reach site in April 2018 and

commissioning was expected by May

2018

Will be supplied by 31.07.18

Status of SAT and SAVT of URTDSM project in SR

SRLDC - SAT completed and SAVT is yet to commence. KSEBL - SAT and SAVT completed. KPTCL - SAT and SAVT completed. TNEB - SAT completed and SAVT is yet to commence TSTRANSCO - SAT completed and SAVT has commenced from 1st March 2018 APTRANSCO - Commissioning works under progress expected to be completed by 31st March 2018.

Will be commenced from

10.06.18

Powergrid Analytical Application installed as part of URTDSM

All the control centers were requested to use the software and report the deficiencies.

PGCIL had agreed to make a Web group of all the Control Centers, LD&C, IIT Mumbai, SR-I/SR-II etc for exchanging the information/usage and for


deficiencies / rectification etc.

PGCIL requested all constituents to submit revised PMU requirement, if any, for Phase-II considering availability of Wide Band nodes.

Table-III - GT Tap: Recommended/Implemented

Station

Unit Present Tap And Corresponding Voltage(In kV)

Recommended Tap And Corresponding Voltage(In kV)

Remarks

ISTS connected Generators:

Kaiga I 1 & 2 6 & 229.125 7 & 223.25 MVAR interchange as per Special Meeting to be ensured.

Kaiga II 3 & 4 3 & 409.5 4 & 399

APGENCO/APSLDC

IPPs of AP It is recommended that all IPPS under APSLDC could be advised to change their Tap position corresponding to voltage level of 400 kV / 220 kV.

KPCL/KAR SLDC

Sharavathi 9 & 10 2 & 231 4 & 220 Taps had been changed as per recommendation.

UPCL 1 & 2 4 & 409.5 5 & 400 Observed rotor teeth temperature issues. 2 x 125 MVAR reactors agreed in 39th SCPSPSR. It was suggested that their MVAR absorption should be around 50-60 MVAR in case they are not able to change Tap.

TANGEDCO/TN SLDC

Tuticorin TPS 1,2,3,4 5

8 & 243 230 All the GTs in TTPS are kept in Tap No. 10.

MTPS St.III 1 6 & 409.5 7 & 399 Provision of Bus Reactor is being carried out by GCC/TANTRANSCO, Salem. After the provision of Bus Reactor the GT Tap will be increased to 7(399 kV) from Tap- Reactor bay works were completed at present and allotment of reactor is awaited.


Table –IV- Reactor Installation Status

Entity Bus Name Status REMARKS

KPTCL

Hoody Reactor erected on platform.

March 2018

Nelamangala Reactor erected on platform March 2018

Entity Bus Name Capacity in MVAR

Approved in

Type

Remarks

PGCIL Yelahanka 2x63 Bus

Deferred as per 40th SCPSSR. When Madhugiri line will come it will be expedited.

Cuddapah 50 to 125 39th SC Yet to be awarded

APTRANSCO

Vemagiri 125 36th SC

Bus Vemagiri and Kurnool is expected by December 2017. LoA issued on 18.06.2017. Kalpakka – will be completed by March 2018 Awaiting for APERC approval for Chittoor Reactor. Commissioning by March 2018.

Kurnool 125 Bus

Kalpaka 125 Bus

Chittoor 125 39th SC

Vijayawada 125 39th SC

It was noted that a separate reactor at Vijayawada in scope of AP had been identified. The exact location could be firmed up by APTRANSCO.

APTRANSCO/ APGENCO

VTPS Stage IV

125 39th SC

APGENCO informed that reactor enquiry was being taken up. It was noted that this reactor was different from the APTRANSCO reactor.

KPTCL

Davangere 125 39th SC 41st SCSPSRR: Members agreed with already approved additional reactors of 1x125 MVAR (400kV) each at Talaguppa and Davangere 400/220kV Substations.

Talguppa 125 39th SC

TANTRANSC Almathy 125 39th SC Specification Under


O Manali 125 39th SC Process

Kayathar 125 39th SC

TANTRANSCO/ TANGEDCO

Mettur 125 39th SC To be diverted from Palavadi and works to be taken up.

TSTRANSCO Mamidipalli 125 36th SC

Bus

Commissioned on 23.02.2018 at 14:31 hours

TSTRANSCO/ TSGENCO

Srisailam LB 125

39th SC

41st SCPSPSR: After deliberations, it was agreed that TSTRANSCO will submit the requisite data for system study to CTU. The CTU, after carrying out studies will forward the results to CEA and TSTRANSCO. The requirement will be further discussed and finalized in a Joint Meeting.

NPCIL Kaiga 2 x 125

Bus

One reactor by December 2019. Financial approval had been received. They were in the process of floating the tender.

UPCL Udupi 2 x 125ADMS

39th SC

41st SCPSPSR: It was informed that the requirement was assessed based on system studies, therefore, it was decided that the the decision taken in 39th SC Meeting may be implemented.

Table V- Reactive Power Planning

Utility Reactive Power Planning Voltage level

Remarks

APTRANSC

O

Kadapa: 273.6 MVAR

Vijayawada: 144 MVAR

Visakhapatanam:175

MVAR

On 33 kV side

28.8 MVAR commissioned

0 MVAR commissioned


APSPDCL 802 MVAR 154 MVAR commissioned


APEPDCL 276 MVAR 115 MVAR commissioned.

KPTCL Bengaluru Tr. Zone:784 MVAR

12.1 kV LOA issued. 30 MVAR

Installed

Bagalkot Tr. Zone :258.1 MVAR

12.1 kV Material supplied. Erection

completed/under progress.

78.3 MVAR Installed

Hassan Tr. Zone 150.8 MVAR

Material supplied. Erection

completed/under progress.

43.5 MVAR Installed

Mysore Tr. Zone :60.9 MVAR


Gulbarga Tr. Zone :98.60 MVAR

Installed Nil

Tumkur Tr. Zone :281.3 MVAR

12.1 kV 46.4 MVAR commissioned. 34.8 MVAR EI approval awaited.

Telangana TSNPDCL:288x2 MVAR 110x1 MVAR

190 x 2 MVAR commissioned 69 x 1 MVAR commissioned.

KSEBL

360 MVAR

66 kV Works will be taken up after

approval. 11kV

TANGEDC

O

34 x 2.4 MVAR 11 kV

16 x 2.4 MVAR 22 kV 16 x 2.4 commissioned

59 x 2.4 MVAR 11 kV IPDS tender to be opened on

30.11.2017

19x2.4. MVAR 22 kV IPDS tender to be opened on

30.11.2017

13 x 2.4 MAVR 110 kV PO placed on M/s Shreem

Electric Limited.

53 x 2.4 MVAR 11/22

kV

RAPDRP tender to be floated

101 x 2.4 MVAR 11/22

kV

Erode region: Tender to be

floated

32 x 2.4 MVAR 11/22

kV

Vellore Region: Tender to be

floated

82 sets of 11 kV, 2.4

MVAR Capacitor Banks in

Coimbatore Region

11 kV BLTC note for price bid

opening to be submitted.

822 MVAR capacitors at

Distribution level had

been commissioned out of

931 MVAR capacitors

planned.

Balance 109 MVAR to be

commissioned. However, for

further enhancement of

Reactive Power, Capacitor

bank provisions have to be

arranged by

Planning/Transmission


wings.

SR I

NGR bypass

400 kV Nellore-

Thiruvalam line I & II

,Thiruvalam-Kurnool I & II,

Kozhikode-Mysore I & II

line reactors

November 2017

SR I informed that

Thiruvalam end works are

over. SRLDC informed that

some voltage issues are

observed at Thruvalam end

and desired to know the

status. SR I agreed to furnish

the details.

Table –VI- ERS status

Transmission Utility

Requirement as per MoP

Existing Status/Remarks

APTRANSCO 3 2 PSDF funding proposal was rejected and AP will carry out the works unde O & Works

TSTRANSCO 1 Being retendered. Subsequently, it would be taken up for PSDF funding.

KPTCL 2 2

KSEBL 1 Tenders to be floated. Being followed up.

TANTRANSCO 2 As per Minutes of BLTC held on 03.01.2017, Procurement is put on hold PED NIL NIL

PGCIL 4 (2 Nos. Additional)

4 (SR I & SR II is having 2 no. Each)

765 KV ERS (one each for SR-I and SR-II) tendering under progress.

Table –VII- Generating Units- Under Progress

Central Sector

Station Unit Installed Capacity MW

Scheduled date of synchronizing / commissioning

Remarks

NTPC

Kudgi TPS Stage-I

I,II, III

3 x 800= 2400

Unit-I CoD from 31.07.2017 Unit-II. CoD from

72 hours continuous test carried out from 00:00 hours of 30th April 2018.


31.12.2017 Unit–III : June 2018

Telangana STPP Phase I

2 x 800 U-I CoD May 2020 U-2 CoD December 2020

Pudimadaka AP

4 x 1000 52 Months from Zero Date

85% share to AP. Zero date yet to be finalized. AP requested NTPC to firm up the zero date at the earliest. AP informed evacuation system would be developed by PGCIL

NLC

New Thermal Power Project

I 500 April 2018 CTU had informed that for evacuation LILO of Neyveli - Puducherry and 400 kV D/C to Araliyur lines are planned. NLC had applied for LTA of 340 MW which could be managed with the LILO of Neyveli – Puducherry. Balance 600 MW would be catered by 230 kV system of TANTRANSCO. Araliyur S/S was being developed by TANTRASCO and was expected by June 2018

II 500 April 2018

NPCIL

BHAVINI

Kalpakkam (PFBR)

I 500 Synchronization by 2017-18 COD by 2017-18 Synchronization by March 2017 COD by Sep 2017

KKNPP III & IV

2023 & 2024

UMPP

Krishnapatnam 3960 (6 x 660)

APEPDCL and PCKL had taken steps with their legal counsel to expedite the hearing before Honorable High Court of Delhi


Cheyyur 4000 New bids would be called

NEW PROJECTS OF STATE SECTOR & IPP

Sl No

Name of project Located in

Capacity in MW

Commissioning Schedule /Remarks

1 Rayalaseema TPS ST-IV

AP 1 x 600 2017-18

2 Dr. NTTPS, Vijayawada

AP 1 x 800 2017-18, June 2019

3 Krishnapatanam Stage II (U3)

AP 1 x 800

4 Polaki AP 4000 (5 x 800 MW)

5 Edlapur KAR 1 x 800

6 North Chennai Stage III

TN 1 x 800 2019-20

7 North Chennai Stage IV

TN 2 x 800 Beyond 2019-20

8 Ennore TPS Exp TN 1 x 660 2018

9 Ennore replacement TN 1 x 660 2018

10 Udangudi Stage I TN 2 x 660 2019-20

11 Uppur TPP (TBCB) TN 2 x 800 2019-20

12 Manuguru PPP Telangana

4 x 270 U1 : March 2018 U2: June 2018 U3: Sep 2018 U4:Dec 2018

13 Kakatiya TPP Stage III

Telangana

1 x 800 2017-18

14 Kothagudem TPS Phase VII

Telangana

1 x 800 December 2018

15 Damaracherla (Yadadri)

Telangana

5 x 800 U1 &2 Nov 2020 U3to5 20121

IPPs

Sl No.

Name of project Located in

Capacity in MW

Commissioning Schedule /Remarks

1 Meenakshi PH-II AP 2 x 350 2017-18 Untied: 640 MW

2 East Coast Energy Thermal

AP 2 x 660

2017-18 AP : 300 MW

3 Thermal Powertech (TPCIL) Unit-III

AP 1 x 660

2017-18

5 Godhna TPP, Janjir – For 2 x 800 2017-18


Champa Dist, Chhattisgarh

KAR

Table VIII-SCADA/Communication

Update as per Meeting on 13.03.2018 Latest update

ICCP link failure/not stable

Expiry date of all licenses would be furnished by M/s GE to the respective Control Centers.

Respective Control Center would ensure that M/s GE take pro-active action to renew the licenses before the expiry.

There should not be any license renewal issues during the project cycle of the project and it needed to be ensured by Control Centers (through M/s GE).

License for external firewall is going to expire in three months. M/s GE has to update the certificates in ext firewall of AP. M/s GE to take necessary action.

M/s GE site engineer at respective Control Centers to escalate the matter to BO-Noida, if they are unable the resolve the issue at their level. Further, inter-action between M/s GE site engineers at SLDCs and M/s GE site engineers at SRLDC needs to be strengthened.

Changeover to ICCP data communication through Backup SRLDC could be explored during such conditions which would reduce data outage duration.

All the ICCP links (Main/Back up CC of SLDCs to Main/Back up CC of SRLDC) to be checked daily to ensure healthiness.

All SLDCs to carry out HA test once in every month to a check SCADA/Communication system healthiness.

All states to actively raise all SCADA/communication related complain to M/s GE/CTU (M/s Tejas) /STU and not leaving the matter only to SRLDC for resolution.

It was noted there was no provision for DSM waiver during ICCP failure as per extant Regulations.

Updated communication network diagram to be submitted by SR-I and SR-II to all SLDCs & SRLDC. Further any changes done in the communication network needed to be informed to all.

SR II informed that

Necessary standby channels

are made available and

updated communication

network is ready and shall

be sent in this week

Frequent data outage(State Sector/Central Sector)

PGCIL to share their observations for communication failure on the instances of data outage beyond 8 hrs put up by SRLDC.

PGCIL to share all fibre cut/equipment outage

SR II : Complied and all

communication failures are

being informed timely to

SRLDC


information in real time. DCPC at Narendra is faulty which is being attended

by GE(SRLDC to follow up)

Data outage after commissioning

Cross checking to be done with site daily values for newly commissioned elements for a period of two week duration from commissioning.

SR II : Complied and SRLDC

may check and intimate any

failures

Data discrepancy

SRLDC to delete the points which are not feasible to be telemetered.

RTU/SAS Maintenance/Upgradation

All states/Powergrid/CGS to explore option of replacement of old RTUs and AMC for SAS, as getting spare is difficult for old RTU.

AMC need to be provided for all RTU/SAS gateways by CTU/STU.

A life/functional assessment report and action plan by PGCIL/ISGS on old RTUs would be prepared and submitted to SRLDC/SRPC.

POWERGRID, SR-II does not

feel to have AMC for SAS

stations. However, the

conventional RTUs,

commissioned during 2001-02

are proposed to be upgradated

/ replaced. The offer obtained

from GE for upgradation and

process to be initiated

Backup Control Centre

Backup SCADA functionality testing frequency needs to be done once in 6 months to ensure high availability of data/preparedness to operate from Back up CC in event of any contingency. Compliance report may be furnished to SRLDC.

Periodical testing was being carried out by SRLDC and KSEBL.

TN stated that communication network is being strengthened to Backup CC. Once same is completed, TN will do the testing.

APTRANSCO informed that communication link has to be established from AP CC at Vijaywada to Back Up CC of SRLDC at Delhi. Powergrid & AP confirmed to establish the same by 16.03.2018.

PGCIL would be floating new combined Open Tender for Backup SLDCs for AP (Tirupati), TS (Warangal) along-with few other states.

Backup control centre establishment for AP & TS need to be expedited.

ICCP with NTAMC

PGCIL had confirmed that due to cyber security SR II : Additional data


concerns data would not be extended to SRLDC from NTAMC ICCP.

Functional requirement of the requisite data by SRLDC would remain, which needed to be ensured by PGCIL. SRLDC would furnish the list of telemetry points that have to be extended to PGCIL within 10 days, and within 1 month PGCIL would come out with a detailed plan to be completed within 6 months (October 2018)

points have been received

from SRLDC and action is

being taken to extend the

inputs by Oct' 18

Modification of EMS package TSTRANSCO had received estimate of Rs 47 lakhs and

the contract was being firmed up.

SRPC had requested that PGCIL to render assistance to

TSTRANSCO as requested by them if possible.

Status review of compliance of approved protocol of handling scada & communication issues (21.03.2016 communication meeting)

If the issue is not getting resolved within 8 hrs (3 hrs for ICCP) the following action would be taken:

Shri A P Gangadharan, GM(AM), SR-II and Shri S Ravi,

GM(AM), SR-I would be informed for necessary follow

up.

The issue would be escalated with M/s G E (both by

SLDCs and SRLDC) and with M/s Tejas (by SR-I & SR-

II).

In case the issue was as not resolved within 24 hrs

physical involvement of OEM (M/s GE and M/s Tejas)

would be ensured through effective coordination by user /

PGCIL/ SRLDC.

Sustained efforts/involvement of all the concerned entities

to be ensured till the issue is resolved

In case of hardware replacement / major rectification it

would be completed by 72 hrs.

Completed

Sparing of Fibre in Central Sector Project

TANTRANSCO had again requested for sparing of fibre in

Central Sector Project. SR-II stated that request for

sparing of fibre in new FO links could be communicated

for consideration.

In 30th TCC/31st SRPC

meetings held on

24/25.02.2017 it was

noted that keeping in

view of the non

availability of spare


fibres in most of FO

links and the approved

MoU with M/s Powertel

the scheme of

allocation the fibres was

dropped.

SR II : Once again taken up

with higher management

and is under review

VC issues

TSTRANSCO Video Conference issue at TSSLDC. There

was disturbance in Video Conference at TS end when

connected to SRLDC.

SRLDC confirmed as per AMC Engineer no issue was

observed at SRLDC end and software upgradation is

pending at TS end.

TSSLDC and SRLDC were requested to coordinate and

sort out the issue.

Talcher RTU

A meeting with NTPC Talcher, SR-II ULDC and SRLDC is

proposed in 3rd/4th week of March 2018.

SR-II was requested to address the communication issue

between Talcher-II & HVDC. NTPC as a User needed to

be proactive in this.

SR II : NTPC, Talcher

informed that they are hiring

direct link from NTPC,

Talcher to SRLDC and

however, SR-II is ready to

support with the available

resources.

Data to be submitted

Data to be furnished

By whom

To whom

Frequency

Comments

1 OCC approval requests for Generation Units Outages

Generators

SRPC/SRLDC

3rd of every month

It was emphasized that the maintenance schedule firmed up in OCC needed to be adhered

by the generators since it had LGB, commercial, ATC/TTC, market and grid security

implications. All generators needed to plan the maintenance and have periodic preliminary

review meeting with the OEM / Maintenance Agency to avoid any rescheduling. Any

unilateral decision by the generator could be considered as violation of IEGC.


2

ISTS/State Sector Transmission Lines and Elements Outage Proposals

Transmission Licensees/Generators

SRPC/ SRLDC

3rd of every month

Outage proposals for the months of April /May in respect of Central and State Transmission lines and elements are to be submitted

An outage coordination group had been created

([email protected]) for review of the previous OCC approved

shut downs (construction/critical).

3 Availed and non-availed transmission elements report

SRLDC

Requestors/SRPC

3rd of every month

4 Comments/Reasons for non-availing the shut down.

Transmission Licensees/Generators

SRPC/SRLDC

6th of every month

Power purchase by the states was also being planned based on these approved outages and any changes may affect their LGB and in some cases ATC/TTC was also getting affected. The issue should to percolate to the operating level/ working level it should be emphasized that they should not deviate from the approved schedule.

5 Annual Outage plan schedule vs Actual maintenance

All Generators

SRPC Monthly Information is required for the Annual

Outage Plan Deviation Report being

submitted to CERC. (CGS, State & IPPs)

and Transmission Licensees

6 Reasons for demand-supply gap and its variations

Constituents

SRPC for further communication to MoP/CEA

Every month along with PSP

MoP/CEA specifically needed the reasons for load shedding like transmission constraints, distribution constraints, regulatory constraints viz the power purchase not allowed beyond an agreed cost or quantum, natural calamities, tripping of some of major transmission lines etc. All the constituents to furnish the information in the specified format. Even if load shedding is zero a ‘Nil’ report needed to be furnished on monthly basis.

7 LS(In MU/MW)

States

SRPC/SRLDC

Monthly

8 Bilateral state SRPC/SRL Monthly



Purchases s DC

9 Installation/healthy capacitors

All Constituents

SRPC/SRLDC

Monthly Installation & ensuring healthiness of capacitor banks at distribution level should be ensured by all the constituents.

10 MVAR Interchange/MVAR capability testing

All Generators/SLDCs

SRPC/SRLDC

4th of every month

All the SLDCs to kindly monitor VAR absorption/injection of generating units in their respective control areas in real-time.

Order of Hon’ble CERC dated 23.12.2009 merited attention in this regard. All agencies needed to provide required reactive compensation thus avoiding the need for exchange of reactive power to/from ISTS and maintain ISTS voltage within specific range.

11 AUFR & df/dt schemes

All constituents

SRPC/SRLDC

Updates if any changes

Details of the feeders implemented in AUFR & df/dt schemes along with the status of SCADA mapping as per the specified Formats.

12 detailed report of operation of AUFR

All constituents

SRPC/SRLDC

Daily basis

In accordance with clause 9 (2) of CEA (Grid Standards) Regulations, 2010. It was noted that only KSEBL and PED were submitting the daily report regarding operation of relays.

13 Upcoming Wind/Solar Projects

All Constituents

SRPC/SRLDC

Monthly Procedure for RE Frameworks had been notified and is available at NLDC website. Progress of works of RE Generators and evacuation system are available in the minutes of the LVRT/RE Meeting held on 25.10.2017.

14 Power Flow Analysis under high RE scenario

All Constituents

SRPC/SRLDC

Monthly A project has been undertaken jointly by POSOCO, USAID and NREL for power flow analysis under high RE scenario. APTRANSCO needed to furnish the data and requested them to furnish the details at the earliest.

14 Outage deviation report

All States/Entities

SRPC/SRLDC

Monthly Outage plan deviation Generating Units/Transmission Elements of Southern Region needed to be submitted by all the concerned which is to be communicated to Hon’ble CERC.

15 Power Supply to

All DIS

SRPC first week of

In the Meeting held at MoP on 09.04.2014 it had been decided to collect the data


Rural Areas

COMS

the month for previous month.

invariably from DISCOMs. It is requested that the data in this regard in the required format may please be arranged to be communicated to SRPC Secretariat at the following E-mail addresses: [email protected]/[email protected]

16 Status of implementation of the recommendations of the Enquiry Committee

3rd and 17th of every month

17 Energy Generation data Management from Renewable Energy Sources

All the states

To CEA with a copy to SRPC

Monthly

18 Power supply hours in various States/UTs (Rural and Urban areas)

All States

SRPC Monthly For Replying to Parliament Questions: CEA Requirement

19 Physical and Cyber Security/Crisis Management Plan/Black Start Procedure

CEA/SRPC Quarterly

Cyber Security: To be furnished to Chief Engineer, DPD, CEA, Sewa Bhavan, New Delhi-110066. Physical Security, other Mock Drills for CMP, Mock Drill for Black Start Restoration: Chief Engineer, DMLF, CEA, Sewa Bhavan, New Delhi-110066. Information required by CEA (vide letter dated 26.11.2013) regarding Security of power installations was to be furnished to CEA.

20 Declaration of availability and healthiness of various

All States

SRLDC/SRPC

Monthly Validated certificates needed to be communicated in a timely manner.




protection / defense mechanism

21 Tripping Details/Reports

All the concerned

SRLDC Within 24 hrs as per IEGC/CEA regulations.Para 29 of Hon’ble CERC Order dated 20.02.2014 in respect of Petition No.146/MP/2013 was brought to attention of the OCC.

22 Compiled Telemetry status

Utility wise

As directed by Hon’ble Commission Hon’ble Commission vide order dated 19.12.2013 on Suo-moto petition No. 56/SM/2013 had directed all the utilities to provide the required telemetry within six months of this order. It was requested that MAPS, KGS & KKNPP may please furnish the compliance status of pending SCADA inputs the earliest. Details in this regard were available on SRLDC web site. For KKNPP only 2 points are pending w.r.t GT tap position. Re -tendering was going on and it will take 5 more months to complete the works.

23 Prolonged outage

States

SRPC/SRLDC

Monthly All constituents were requested to convey the schedule of revival for the elements under prolonged outage to SRPC, which was to be reported to Hon’ble CERC on monthly basis. (CERC Order on petition no 146/MP/2013).

24 Nodal Officer list : Disaster Management

All utilities

SRLDC Update The updated status as per the information available with SRLDC has already been shared.

25 Presentation on Operational issues

All States/ Entities

SRPC/ SRLDC

5th of every month

6/4/2018

143rd OCC Report by Committee on Item No 6.1, 6.10, and 6.14

Southern Regional Power Committee

OCC Agenda 6.14 Simhadri – Kalpaka- Gajuwaka Power Corridor Loading Issue

1. NTPC Simhadri (4×500 MW) has raised the concerns “overloading” of lines due to reconfiguration of lines in and around NTPC Simhadri Stage-I and Stage-II configuration.

Facts

System in and around Simhadri Complex prior to reconfiguration with power flow at Full Generation in the Complex:

ID BUS ID BUS ID MW MAVR 414012 SIMHADRI-I 414020 SIMHADRI-II @1 -227.261 -95.6062 414011 KALPAKKA 414012 SIMHADRI-I 1 -291.006 -13.6997 414011 KALPAKKA 414012 SIMHADRI-I 2 -291.006 -13.6997 414011 KALPAKKA 414012 SIMHADRI-I 3 -291.006 -13.6997 414011 KALPAKKA 414012 SIMHADRI-I 4 -291.006 -13.6997 414009 GAZUWAKA 414020 SIMHADRI-II 1 -13.7254 31.61406 414009 GAZUWAKA 414020 SIMHADRI-II 2 -13.7254 31.61406 414012 SIMHADRI-I 414020 SIMHADRI-II @1 -227.261 -95.6062 414014 VEMAGIRI 414020 SIMHADRI-II 1 -341.17 57.14435 414014 VEMAGIRI 414020 SIMHADRI-II 2 -341.17 57.14435

System in and around Simhadri Complex after reconfiguration with power flow at Full Generation in the Complex:

ID BUS ID BUS ID MW MAVR 414009 GAZUWAKA 414020 SIMHADRI-II T1 -98.6297 26.94287 414009 GAZUWAKA 414020 SIMHADRI-II T2 -98.6297 26.94287 414011 KALPAKKA 414012 SIMHADRI-I T1 -491.203 9.122321 414011 KALPAKKA 414012 SIMHADRI-I T2 -491.203 9.122321 414011 KALPAKKA 414012 SIMHADRI-I T3 -491.203 9.122321 414012 SIMHADRI-I 414020 SIMHADRI-II @1 -524.116 -39.1492 414014 VEMAGIRI 414020 SIMHADRI-II T3 -139.566 -30.4962 414020 SIMHADRI-II 414040 VEMAGIRI_PG T1 44.20655 -72.9855 414020 SIMHADRI-II 414040 VEMAGIRI_PG T2 44.20655 -72.9855

Analysis: Simhadri Complex Generation was evacuating 1200 MW from Kalpaka (with two D/C) of 1850 MW Generation and remaining 650 MW from Vemagiri (AP).

Subsequently due to reconfiguration Simhadri Complex Generation 1500 MW from Kalpaka ( with One D/C and One S/C) and 200 MW from Gajuwaka and remaining from Vemagiri (AP).

Contingency analysis With Worst contingency of one circuit (N-1) of 400 kV Simhadri –I – Kalpaka no violation of Thermal loading, Voltage Limits or angular violation is observed. With Worst contingency of two circuit (N-2) of 400 kV Simhadri –I, II – Kalpaka violation of emergency Thermal loading is observed by 200 MW With Worst contingency of two circuit (N-3) of 400 kV Simhadri –I, II, III – Kalpaka no violation of Thermal loading, Voltage Limits or angular violation is observed. Concern Raised by NTPC, Simhadri

Since the commissioning of Stage-2 (2*500MW) Units of Simhadri, it has been observed only the four lines of Simhadri-Kalpaka are always heavily loaded (approx 350MW each line) followed by Vemagiri Lines (225MW each line) and Gajuwaka lines merely on floating at most of the time under station full generation condition.

Remarks by SRPC: Line loading of 350 MW in 400 kV Twin Moose Conductor is termed as lightly loaded not heavily loaded. Line Loading up to 852 MW is to be allowed for optimal design of system.

On 06.09.2016 when all Simhadri - Kalpaka Lines tripped, evacuation problem arouse and station has to reduce generation.

Remarks by SRPC: System has faced N-4 contingency. Under such condition necessary action to be taken post incident. A system cannot be planned considering beyond N-1 Contingency. As otherwise lead to sub optimal utilization of transmission asset.

After CEA approval SIM-KLP Line-1 is converted as SIM-VEM (AP) Line-3 and SIM- VEM (AP) Line-1&2 is converted as SIM-VEM (PG) Line-1&2. Post modification of these lines, the situation has still worsened and evacuation is mostly through SIM-KLP Line-2, 3, 4 only with rest of the lines under lightly loaded condition.

Remarks by SRPC: Line loading of 500 MW in each of three 400 kV Twin Moose Conductor is still below Surge Impendence Loading. All the parameters are within the limits in N-1 condition under new configuration.

Under these circumstances, when any of the Sim-Kalapka Lines is under shutdown, other 2 lines are heavily loaded whereas flow through remaining 5 lines is only marginally increasing. In such a condition, if another line of SIM-KLP trips and single

line from SIM-KLP will be pushed beyond all theoretical limits thus endangering the reliability of the station.

Remarks by SRPC: The condition is beyond N-1, this condition has resulted due to outage of one circuit. Such risk are faced in real time operation when outages are approved. Such approvals are granted with known risk and for betterment of system.

It is to be noted that during PSAG-17 study N-1 CASE(one klp line is out) the flow in

other three klp lines were 344 and sim-vem lines 207 and in N-2 case(two klp lines out) flow in other lines of klp was 487 and sim-vem lines 209. Now in the present scenario N-1 case itself other two klp lines loading was 567 and vemagiri(PG) lines was 102.(which has reduced considerably). If N-2 case arises it is clear that the situation will get worse and the station will be endangered. So after the modification of lines the situation has not improved and it got worsened.

Remarks by SRPC: The PSAG Study carried out for old scenario and is for a hypothetical rare scenario and system cannot operate under considering such rare scenario. The system parameters are within the limit with worst credible contingency of N-1, for which system should be planned, designed and operated.

NTPC Request for Solution

To see how best the evacuation can be distributed among other lines. Remarks by SRPC: The system is N-1 Secure which is the mandate as per CEA planning criteria, and operational procedure approved by CERC.

Would like to Know during tripping of any SIM-KLP Line during N-1and N-2 contingency, the evacuation in other available lines, when Station is at maximum generation. Remarks by SRPC: Study result is attached as Annexure-III

Specific guidelines in case of availing one of the Kalapaka Lines shutdown so as to ensure loading distribution among other lines also. Remarks by SRPC: There is no violation in line loading limits. The power flow during N-1 is around 700 MW which is below 850 MW of thermal laoding.

Specific instructions to the constituents in the event of outage of any of these critical lines Remarks by SRPC: No specific pre decided methodology is foreseen. In case of transmission constraint observed RLDC may invoke IEGC 6.16 to contain the power flow with the limits as specified by CEA planning criteria.

Conclusion: The existing reconfigured system in NTPC, Simhadri (4×500 MW) Complex is N-1 Secure during worst single credible contingency as specified by CEA planning criteria. During availed outage of one circuit of 400 kV Simhadri – Kalpaka line the power flow in the remaining circuit is below 700 MW which 150 MW less than thermal loading capacity. In case during availed outage of one circuit, one more circuit trips in the corridor which would be a rare incident and such risks are faced in the system for taking transmission lines/Generators under outage, SRLDC system operator would take necessary action to bring back the system to normal operation from emergency condition by (1) bringing back the tripped line (2) reduce the generation of Simhadri under IEGC 6.16 (3) tripping the existing line of Simhadri – Kalpaka to force the flow through Vemagiri and Gajuwaka (4) Any other method deemed fit by SRLDC Operator. NTPC’s concern regarding N-1 compliance during availed outage of Simhadri-Kalpakka line is devoid of merit since planned maintenance of transmission elements and generating units need to be periodically undertaken for secure grid operation. In case N-1 compliance needs to be ensured even with outage of elements, then this would necessitate heavy over design of transmission assets much beyond the transmission planning criteria of CEA. Such over design may also lead to high voltage in the complex besides steeply increasing the transmission tariff payable by beneficiaries. This may also require higher MVAR absorption by generating units on a sustained basis so as to maintain voltage within range specified in CEA Regulations. It is therefore needless to state that this would further strain the machines. Further, in case NTPC Simhadri requires N-1 compliance even during line outage or also beyond N-1 compliance, it may suitably consider declaring DC commensurate with line loading levels, at which NTPC is most comfortable with. (Lower DC) It may be kindly noted that a number of generating stations such as TPCIL, SGPL, CEPL, IL&FS , NTPL etc. are left with no N-1 security during any planned outages of one of the evacuation lines to the nearest Pooling Station. In this regard, NTPC, Simhadri is relatively much better placed in reliable evacuation, even during planned outages. Whenever NTPC, Simhadri Station is given outage it reduces the TTC from ER to SR as NTPC, Simhadri is “constraint reliving generator” such situation are also optimally handled by RLDC considering the system security.

OCC Agenda 6.10 Enhancement of net exportable quantum for SEIL (2 x 660 MW)

2. Net Exportable Capacity Quantum for SEIL Unit(s) may please be updated and recorded as 1254 MW (627 MW each unit) against 1240(620 each)

Facts

SEIL has obtained connectivity for 1320 MW from CTU. SEIL has obtained NoC from SRLDC for exporting 1240 MW ex-Bus.

SEIL Request

SEIL has requested for enhancing the NoC for Ex Bus Export from 1240 MW to 1254 MW based on reduced auxiliary consumption and other site condition as its auxiliary consumption has reduced to 5%.

Analysis

There are 5318 Blocks when SEIL has injected more than 1254 MW form the date of CoD.

Maximum Generation was on 04-09-2017 at 09:30:00 of 1293.818 MW. Average generation when Gen was above 1254 MW is 1262 MW.

Continuous Generation above 1254 was observed for 28 block. Normative Auxiliary consumption as per CERC Tariff regulation (14-19) for

300/330/350/500 MW and above Steam driven boiler feed pumps with Natural Draft cooling tower works out to 5.25%.

Considering Normative Auxiliary consumption its Ex-Bus capacity works out to Round (1320× (1-5.25%), 0) = 1251 MW.

SEIL has informed that they have undertaken measures to reduce auxiliary consumption by using variable frequency drives in auxiliaries.

Conclusion:

It is seen that SEIL has injected 1293 MW average Ex-Bus for 15 Minutes on 04-09-2017. SEIL also has generated more than 1254 MW ex-Bus continuously for 7 hours. SEIL has the normative (based on Hon’ble CERC tariff regulation 14-19) Ex-Bus Installed capacity of 1251 MW. As per Hon’ble CERC regulation Scheduling of a station is to be restricted at Ex-Bus Installed capacity. SEIL has confirmed that by using energy efficient methodology (like VFD) they have achieved Ex-Bus export capability of 1254 MW.

Committee recommends to increase the Ex-Bus export capability to 1254 MW considering computation of Auxiliary consumption as per CERC Norms and usage of VFD in auxiliary system.

OCC Agenda 6.1 Low Voltage in SR

3. Low Voltages in Southern Region There are two major pockets of low voltage in Southern Region one in and around Bangalore area of Karnataka and another around Central, North Kerala connected with ISTS in North Western Part of Tamil Nadu. The major substation in Bangalore area at 400 kV are Somanahally, Hoody, Nelamangala, Bidadi, Hosur where voltage drop below 390 kV is observed for more than 10% of the time in a year. Apart from this ring, low voltage are also observed though for small duration of time in Muniradabad, Kolar and Mysore. The second pocket consist of Karamaradi, MTPS, Arasur, Udmalpet, Palakkad, Thrissur and Cochin. Apart from this Low voltages are seen in Kozhikode (Voltage below 390 kV for more than 17% of time). SV Chatram and Trichy has also registered low voltage though for a smaller period. The low voltages are seen during day time normally between 10 to 11 AM. The low voltages are witnessed during the month of March and April. Study Result of Pocket 1 (Bangalore Area): Snap Shot of Low voltage in Bangalore Complex on 07-03-2018: The voltages in the complex were between 380 to 370 kV whereas voltages above the complex where above 390 kV. The low voltages are seen in (1) Hoody (2 Nelamangala (3) Somanahally (4) Bidadi (5) Mysore (6) Kolar. The VAR Requirement from this pocket has to be met locally as the distance from adjusted high voltages zone is very large and VAR cannot be transported to this pocket.

MVAR and MW Flow in Nelamangala, Somanahally & Hoody at different voltage level on 07-03-2018 is tabulated below:

Bus Voltage Hoody

(MVAR) Hoody (MW)

Nelamangala (MVAR)

Nelamangala (MW)

Somanahally (MVAR)

Somanahally (MW)

TOTAL MVAR

TOTAL MW

370 479 1114 276 1171 281 891 1036 3176 375 489 1132 279 1166 279 889 1047 3187 380 491 1157 293 1167 285 894 1069 3218 385 430 1157 303 1086 266 894 999 3137 390 380 1077 269 1076 216 838 865 2991 395 309 965 258 1003 156 750 723 2718 400 265 935 256 1023 132 735 653 2693 405 153 797 198 933 65 638 416 2368

From the table below it can be seen that heavy MVAR (drawl) in the order of 1000 MVAR were imported by KPTCL which lead to low voltage in the corridor.

Study Result of Pocket 2 (North/Central Kerala and North Western Tamil Nadu):

SCADA Snap Shot

Base Case Modelling of the Network:

Bus Number Bus Name Base kV Voltage (pu) Voltage 444020 METTUR-III 400 0.995 398

444026 DHARAMAPURI 400 0.9933 397.32 444003 SALEM-PG 400 0.984 393.6 444006 HOSUR 400 0.9771 390.84 444041 RASIPALYAM 400 0.9726 389.04 444042 ANIKADV4 400 0.9682 387.28 444004 MYWADI 400 0.9496 379.84 444037 KARAMADAI 400 0.9452 378.08 444011 ARASUR 400 0.9441 377.64 454005 PALAKKAD 400 0.9183 367.32 454001 TRICHUR 400 0.899 359.6 454004 COCHIN 400 0.8978 359.12

454008 KOZHIKODE 400 0.945 378

TRICHUR_PGCIL

From Bus Number To Bus Number To Bus MW MVAR

454001 454004 COCHIN 130.1175 -20.9417 454001 454004 COCHIN 130.1175 -20.9417 454001 454005 PALAKKAD -342.467 -32.8418 454001 454005 PALAKKAD -342.467 -32.8418 454001 454006 BUS-KL 424.698 107.567

PALAKKAD From Bus Number

To Bus Number Bus Name MW MVAR

454005 454001 TRICHUR 344.9402 55.90308 454005 454001 TRICHUR 344.9402 55.90308 454005 444004 MYWADI -504.318 -103.51 454005 444004 MYWADI -504.318 -103.51 454005 452026 ICT 159.3774 47.6072 454005 452026 ICT 159.3774 47.6072

As per the Var requirement assed for bringing all voltages above 380 kV it is seen that 1000 MVAR is required in Karnataka followed by 350 in Tamil Nadu and 250 in Kerala. The reason for large dip in voltage in Kerala on account of small requirement of VAR and negligible drawl by ICTs of Kerala, Low Short Circuit were the reason and below average voltage maintained by Udmalpet and Arasur.

∆ ∆ ( )

The drop in voltage due for a given change in MVAR is

inversely proportional to Short Circuit MVA.

The Short circuit MVA of Cochin, Thrissur and Kozhikode in the order of 4000 MVA whereas of Palakkad is around 6000 MVA.

So a VAR Deficient of 250 MVAR would cause voltage dip by 10 kV. The drastic improvement of voltage is seen with commissioning of Cochin – Tirunelveli D/C, as the short circuit increase to 7500 MVA.

In case voltage improve to be obtained through Load Shedding up 380 kV then load shedding in the order of 400 MW need to be carried out in Cochin and Thrissur area.

The voltage drop at Mywadi and Arasur which are strong buses with more than 10,000 MVA Short circuit needs to be looked into.

Voltage Snap at Cochin - Base Case:

Voltage Snap at Cochin - Base Case+ Cochin - Tirunelveli D/C:

Low Voltage in Kozhikode:

Kozhikode is a 400 kV system with weak Short circuit MVA in the order of 3500 MVA. A 100 MVAR drawl at 400 kV S/s would bring down the voltage by 12 kV. Mysore also maintain below normal voltage and Kozhikode being only connected to Mysore, Voltage profile of at Kozhikode is also dictated by Mysore Voltage. The lines from Mysore to Kozhikode carries power below SIL hence on majority of the occasion Voltage at Kozhikode is seen above Mysore Voltage and Above 385 kV except 5% of time in the year which happens in March April season .

There was a specific instances from 28th to 29th April 2018 when Kozhikode voltage went drastically below 380 kV. The time of Low Voltage was during evening peak when state was overdrawing to curtail the over drawl, the capacitor banks were switched off. This resulted in 200 MVAR drawl by Kozhikode Substation. The voltages during the time dropped below 380 kV. Capacitor banks could not be switched on due to preexisting low voltages.

Conclusion:

I. Low Voltage in Kerala: Low Voltage in Kerala is observed in 4 Nos of S/s (1) Palakkad (2) Thrissur (3) Cochin and (4) Kozhikode. Substation is Palakkad, Thrissur and Cochin are having coherent nature of Voltage drop with Arasur and Udmalpet of Tamil Nadu. The reason of dip in voltage in this region (Kerala) is

not due to huge quantity of VAR interchange. Additional VAR of around 250 MVAR would be sufficient of ensure that voltage is above 380 kV. The major reason for Low voltage with small variation in VAR drawl is due to low short circuit MVA of these nodes and already low voltages faced by upstream nodes in Coimbatore region. In Kozhikode Substation normally low voltage is not seen, on the specific days low voltage was observed due to switching of capacitors. The low voltage issues would have positive impact with commissioning of 400 kV lines in Kerala specifically 400 kV Tirunelveli-Cochin D/C. In the VC held on 4th June 2018 with KSEBL, KSEBL assured that in future they would be more prudent in switching off of capacitors. However, the incident had occurred at a time when lines were under construction outage and also the state demand was very high. KSEBL assured that in future the drawl through Kozhikode ICTs would also factor the current voltage situation there.

II. Low Voltage in Karnataka: Low Voltage in Karnataka is seen in 400 kV Substation in Bangalore Region (1) Hoody (2) Somanahally (3) Nelamangala (4) Bidadi. These low voltages gets reflected in to (1) Mysore and (2) Hosur. The main reason of low voltage is due to heavy MVAR drawl by Bangalore substation. Around 1000 MVAR shortage is seen in these area.

Summary Table:

Issue Finding Remarks Over Loading Issue Raised by NTPC, Simhadri

No issues with N-1 Specific Instruction based on Studies to be issued By SRLDC for planned outage of lines in the Complex

Ex – Bus Instated Capacity of SEIL

Based on CERC Tariff regulation and VFD Ex-Bus installed capacity could be Enhanced to 1254 MW

Ex – Bus Installed Capacity of SEIL to be 1254 MW

Low Voltages In SR Low Voltages in SR is seen in Bangalore Area and Central/ North Kerala with Udmalpet and Arasur Area.

Low Voltage in Bangalore Area due to Heavy Drawl of MVAR in the order of 1000 MVAR. Low Voltage in Kozhikode due to operational error in switching Capacitor. Low Voltage in Other Part of Kerala due to Low Short circuit and low voltage in Udmalpet and Arasur Area. Improvement is seen in voltage with commissioning of 400 kV D/C from Tirunelveli to Cochin. KSEBL in future while drawing through Kozhikode ICTs would also factor the current voltage situation at Kozhikode Bus

BASECASE : FULL ENERATION AT SIMHADRI COMPLEX (4X475 MW)

Case-1: (N-1) contingency of 400kV Simhadri-Kalpakka one ckt

Case-2: (N-2) contingency of 400kV Simhadri-Kalpakka two ckts

Case-3: (N-3) contingency of 400kV Simhadri-Kalpakka three ckts

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10

Charanka

I

II

177178

17027

28171

III IVI II

IVIIIIII

I II

I

II

II

I

III

I II

290

IVIII

IVIIIIII

I

IV

IV

S

S

I

III

II

IVIIIIII

III

I II

III

III

I

III

I II

II

II IIII

III

III

III

III

III

77

M

M

38IIII

II

III

IVIIIIII

I150

II

III

III

I II

III

I II

Panipat

Bahadurgarh

Jind

Fatehabad

Kirori

Bhiwani

GurgaonManesar

Abdullapur

Kaithal

Hisar

Ballabhgarh

Kabulpur

Deepalpur

DhanaudaNawada

Nuhiyawali

Allahabad

SINGRAULI

Sarnath

MainpuriMainpuri

Kanpur

Bareilly

Auraiya

Gorakhpur

Rosa

Mandaula

Panki

Dadri

Unnao

Sohawal

Anpara A & B

Ratangarh

Sikar

Bhiwadi

Merta

Jodhpur

Akal

Barmer

Bhinmal

KankroliKota

Heerapura

Jaipur_pg

Rajwest

Bassi

Bamnoli

Mundka

Jhatikara

Bawana

Moga

Amritsar

Jalandhar

Ludhiana

Malerkotla

Patiala

Nalagarh

Wagoora

Kishenpur

Roorkee

Pirana-Pg

Navsari

Sami

Kosamba

Bhachau

Amreli

Soja

Jetpur

Dehgam

Asoj

Varsana

Pirana Torrent

Ranchodpura

Kasor

Zerda

Ukai

Hadala

Vapi

Chorania

GPEC

Halvad

Gandhar

Mapusa

New Khaperkheda

Mauda

Warora

Bhadrawati

Chandrapur

Koradi

Babhaleshwar

Jejuri

Nagothane

Chakan

Boisar-PG

Tarapur

Navi-mumbai

Khargar

Kalwa

Aurangabad

Akola

Bhusawal

Dhule

Kolhapur

Karad

Koyna

Jaigad

(Dabhol)

Khandwa

Seoni

Itarsi

RajgarhIndore

JabalpurBhopal

Shujalpur

Nagda

Damoh Katni

Vindhyachal

Bina

Satna

Gwalior

Sasan

Aryan Coal

Raigarh

Raipur

Bhatapara

BilaspurSipat Korba(w)

Bhilai

Ksk Mahanadi

Raita

Kalivendapattu

Tirunelveli

Sriperumbudur

S V Chatram

Hosur

Pugalur

Arasur

Udumalpet

Karaikudi

Salem

Pondy

Thiruvananthapuram

Kochi East

Palakkad

Mamidipalli

Mahbubnagar

Dichipally

Warangal

Gajwel

Nellore

Kalpaka

Chinakampalli

Malkaram

Gazuwaka

Kurnool

Khammam

Vemagiri

Shankarapalli

Krishnapattanam

Hoodi

Hassan Nelamangala

Kolar

Hiriyur

Talaguppa

Guttur

Munirabad

Mysore

Somanahalli

Bidadi

Udupi Power Corporation Ltd

Bongaigaon

Balipara

Misa

Silchar

Binaguri (PG)

Kharagpur

Arambag

Purulia PSP

Jeerat

Ranchi

Jeypore

Mendhasal

Indravati (PG)

Rengali

Baripada

Meramundali

Rourkela

Bolangir

Angul

Keonjhar

Malbase

Purnea

Sasaram

Biharshariff

Gaya Banka

Sterlite

Jharsuguda

Suratgarh

Nathpa Jhakri

Kahalgaon

Adhunik

Barh

Shree Cement

Khedar

RIHAND

Mahan

Vindhyachal-IV

Chamera-2

Dulhasti

KoldamDehar

CGPL-Mundra

SSP

Gandhar

Vadinar

SugenSugen-UN

GPEC

SSP

Ukai-T

KWPCL

Balco

Korba(w)

SatpuraIndira Sagar

Talcher

Indravati

Gautami

Kothagudem

Konaseema

Jegurupadu

Raichur TPS

Srisailam Left Bank

Bellary TPS

Udumalpet

Tirunelveli

Neyveli TS2

Vallur

Simhapuri

Bhupalpalli

Tala Hep

Teesta-V (NHPC)

(6x170MW)

Mejia 'B'maoijayaa ‘baI’

dugaa-pur

Ramagundam NTPC

Kaiga TPS

Udupi Power Corporation Ltd

Koyna Dam-foot

JP-Bina

PrayagVishnu

Wanakbori

Tiroda

Ranganadi

Birsingpur

Rishikesh

387

394

391

408

0S408

244

148

131

411

416

409

410S

406

408

52

5

26

411

1

-8

183Baspa

412410

400R

411

410

408S

410

Jhajjar

Panki

Agra-UP

Daulatabad

G. Noida

MeerutSonepat

Muzaffar Nagar

Kashipur

URI-1

URI-2

Baglihar

Chamera-1

Panchkula

Bhiwani-PG

Neemrana

Bareilly-PG

Lucknow-UP

Lucknow-PG

Lucknow-PG

Azamgarh

Gorakhpur-UP

Balia-PGMauFatehpur-PG

Maharani Bagh

Maithon RB

Emco (GMR)

Jindal(Tamnar)

Pune

Parli(PG)

Bina(PG)

Patna

Pathadi

KSTPS

Jindal

RGPPL

Bikaner

Hindaun

Moradabad

Dhauli Ganga

Sultanpur

RAPP-C

Bhilwara

Chabra

JP NIGRIE

PARICHHA

Simhadri-2Simhadri

Meenakshi

Chittoor

Alamaty

Thrissur

Neyveli TS1 Exp

Jindal

Lanco

GMR

Tisco

24215

583

Muzzaffarpur

Malda

Farakka1788

1912

Sagardighi952

Subhasgram

Kolaghat

270

Bakreswar

Pithampur

Singhaji

413

Padghe

Narendra

Madurai

Trichy

Neyveli TS2 Exp

Tallapalli

IEPL

JITPL

Tehri

Raichur(PG)

Kodarma

Pole I

Pole II

I II

I II

III

III

III

I IIIIIIV

III

464

0

Behrampore

Mettur Stage 3399

Jindal

1499

406

2772

313

Nellore PS

Aurangabad(PG)

Akola(APL)

Durg

Kotra

Tamnar

Agra-PG

DGEN

Kurnool

Dhariwal

DSTPS

Durgapur

New Koyna

Kawai

I II

Kotputli

Kalisindh-4

Rangpo

181

Chamba

50

69S6

2020

200

1I

II

QaurIDhuri

Rajpura TPS

Dhuri

870

59891

6049.0S

-21

Gooty

Thiruvalam

Deedwana

401

19434

19330

MGTPS

Koteshwar

Raghunathpur

VTS- Stage IV

VijayawadaSattenapalli50.0

404

402

Bheramara

Mundra(APL)Mundra(APL)

Chhegaon

Lakhi Sarai

951

974

1019

Karcham Wangtoo

Jamshedpur

Mahendergarh

405S(E.B.)(S.B.)

Rampur

Indore(MP)

New Wanpoh

Chandrapur-2

Essar Power

Shahjhanpur

Durgapur WB(Bidhan Nagar)

Tapti Tanda

Parbati-3

Nakodar

Makhu

MCPL

ANPARA-D

Amravati

Dhariwal

929

379

Deepnagar

Koteshwar PG

kukurmara

0

0

Kayathar

Kudankulam

Thoothukudi(NTPL)

NSPCL

Loni

Alwar

Muktsar

Maithon

RKMIBEUL

400kV Filter Bank 1220kV Filter Bank 1220kV Filter Bank 2

Chaibasa

Kala

Ishurdi

Khulna South

2296

2296

II30

138

I

13730

Daman(Magarwada)

Indiabulls(Nasik)

Solapur

Solapur (MS)

Alaknanda

Thoothukudi(PS)

Halvad(Mansar)

HVDC

HVDC

HVDC

HVDC

HVDC

HVDC

GMR(Raikheda)

New Lonikand

Lonikand

GMR(Kamalanga)

(Kansari)

Vindhyachal PS

Moser Baer (Anuppur)

Ashta

Kukurmara(Azara)

Jhabua Power

50.0S

405

0

Yermarus TPS

347

Marwa

Vindh-V

Duburi New

751

1203

-749Biswanath Chariali Pooling Point

Koldam

IL & FS

Nagapattinam401 50.0

50.0

401

404

50.0

0S

Bongaigaon(NTPC)

412

543

Sorang

0S

(Kalabadia)

(Kakathiya)

Kozhikode

Aligarh

Bokaro TPS 'A'

41350.0

Kudgi TPS

Kudgi (PG)

Kishanganj

Ajmer

Dhule

Baghpat

Nanded

Coastal Energen

408

0

Kolhapur(PG)

Mundra(APL)

Julwania

Samba

Thoothukudi(NTPL)

DBPL

Singareni

-20778 400R

Suryapet

Sikandrabad

Chandwa

Saharanpur50.0

50.0

953

N.P. Kunta

Patran

Kanpur-GIS

Talwandi Sabo

Jammalamadugu

Uravakonda

Satpura-III

Srinagar

Bara 50.0

409

Rewa(Allahabad)

Madhugiri

NCTPS-II

SGPL(NCC)

Karamadai

Kamudhi

Dharmapuri(Salem Pooling Station)

Fatehabad

382

Unchahar

Athena0S

]r[-

050.0

Betul

Total Gen:

Nabinagar

Teesta-III

Vemagiri

Kakrapar

Rajarhat

Haldia

Parbati-II

245

560

273 943

0

750

0

-2

828

1124

362

0

274

274

964

377

0

-1

440

0

531

898

0

8

1

439

Kanarpatti

Narsapur

SOLAPUR (NTPC)

Nizamabad

Gani

Kamavarapukota

Chanditala

50.0

0S

Alkud

674674

67192

III

Dharbanga

Chandrapur PS

Asupaka408

Nehtor

HVDC

G. Noida

2220

(From Bhadrawati side line flows are available only before DC Back to Back. After DC back to back measurements are not available from site)

TRN

1581

1239

1346

97

1246

1112

274-2

1049637

3666

1041

802

1375

219

919

Dholpur

256

980

-4

0

245

3017937

3794

0 930

SKS

Pandiabil

Wardha-PG

New Ranchi

Dharamjaigarh

Obra

Anpara-C

Motihari

Rasipalayam

New Parwanipur

Raxaul

397

Jagdalpur

410

Ramgarh

Dasna

Indirapuram

Bhadla

Maheshwaram(TLG)

Ghanapur

Dindi

Palavadi

NNTPP

Pavagada

RTPP

Bellary PS

Hamirpur

Rajpura

Dehradun

Banala

Lara

Vandana

New Purulia PSP

Gokarna

Dikchu

Dhalkebar

Koradi-II

MuradnagarMuradnagar (New)

Ataur

Kalaamb

411Kalaamb

Nicol_Ge

Chittorgarh(RS)

400Chittorgarh(PG)

Kurukshetra

III

9999999Q999Q

OPGC-CS

Orai UPOrai

Yehlanka

SholanginallurSholanginallur

Julurupadu

II

KalikariS

NirmalS

DaltonganjS

S

S

Amargarh

REWA

Morena

Anaikadavu

Cuddappah

S

Dhoni

T' GIS

Mardam

Kameng

INSET 2

75S

0S 0S

Kongba

Imphal

Churachandpur

Karong

Yangangpokpi

Jiribam(PG)

Meluri

Ambassa

Jirania

Kamalpur

Khliehriat

AgiaBokajan

Dhaligaon

Pavoi(Biswanath Chariali)

Margharita (ledo)

Bokakhat

Diphu

Lanka

GolaghatSamaguri

Pailapool

Nalbari

Moran

Kahelipara

Tinsukia

Luangmual

Serchhip(Bukpui)

Imphal(PG)

Ningthoukong

Rengpang

Kakching

Boko

Khupi

Jiribam(Dimapur)

Naharlagun

Bhalukpung

Dimapur

Wokha

Kohima

Neigrihms

Nalari

Nongstoin

Nehu

Bongaigaon

Mokokchung

Kumarghat

Gournagar

Agartala

Along

Ziro

Dharmanagar

P K Bari

Deomali

Nangalbibra

Mariani

Rangia

Gossaigaon

Rowta

Kopili

Gohpur

Jorhat

Sibsagar

Barnagar

Dhemaji

Sipajhar

Srikona

North Lakhimpur (Nalkata)

Dibrugarh

Nazira

Gauripur

Dullabcherra

Majuli

Panchgram(Old)

Narengi

Sarusajai

DispurHPC(Bagjhap)

Daporizo

Tura (Rongkhon)

EPIP II

Mawngap

Umiam

Umtru

Khandong

Myntdu Leshka

Kiphire

Ranganadi

Doyang

KolasibBairabi

Lunglei(Khawiva)

Rokhia

Baramura

AGTPP

Balipara

PalatanaPalatana

Silchar

Hailakandi

125

3R 0S

S

44

336

456

Sishugram

Mawlai

Umiam-IUmiam-II

Umiam-III

Umiam-IV

Chandrapur

Depota

Khliehriat -PG

Panchgram-N

Badarpur-PG

Gamaitilla

Loktak

Lakwa

223S

Udaipur

Dhalabil

B.Nagar

Lumshnong

Namrup

HaflongCherrapunji

Haflong(PG)

Kurseong

NBU

Lebong Melli

Chuzachen

Gangtok

Rammam

Nirjuli(Itanagar)

Siliguri (PG)

Rangit(NHPC)

Njp

Aizawl(PG)

Rupai Siding0S -0.0S

261

Apm___as

133

Calcm

Nagao

Jawhr

133II

I

Namsai

Roing

Pasighat Tezu

Zemabawk(Zuangtui- Aizawl(MI))

Sagbari

Motanga

SERUL

9

8

0.0

0.0

0.0

50.0

50.0

0.0S

50.0

0.0

50.0S

****S

50.0

50.0

49.9S

50.0

0.0S

-56.8S

50.0

50.0S

0.0S

50.4S

50.0R

0.0S

50.1

78.3S

-8.0S

-40.0S 50.1

4.6S

-9.3S

-0.0S

50.0R50.1

50.0

0.0

0.0

50.1

50.0

0.0

49.9

****

45.5

50.0

49.5

0.0

Comilla North Monar

Melriat133S

Surjamani

Killi

EPIP-I

132Mustem

133S 132

0S127R

Stg_f0S

Jorhat(W) 136

Bongaigaon

Jagir132R

0S

133

Sonari

Behiating

0S

0S

131

Tuirial

50

573

83

67

35

18

212

35

262

63

10085

52

167

112

6

40

209

89

113

43

53

66

21

398

262

158

25

97

212

144

260

260

100

49

73

6

90

262

209

409

170236

166

386

249

133

249

241

71

37

164

102

161

72

181

211

126

241

246

279

63

39

33

140

42

224

202

46

13

9

30

279

74

46

92

108

144

76

113

225

154

139

48

371

26198

229

199

202

187

192

230

130

20

220

76120

180

256

180

51285

162

49

128

160

60

180

144

84

234

49

12

54

61

154

24

18

1

17

36

85

275

85

60

7894

63

135

47

154

36

216

165

312

262

152

95

120

50

25

71

280

172

3

95

41

135

76

68

152

62

140

143

177

166

83

122

103

166

164

103

314

96

334

98

118

146

3

282

233

84

282

10

159

113

13

64

157

106

6

91

170

5

371

357

182

28

72

58

85

161

284

285

48

183

37

172

14

18

105

111

72299

178

136

2022

343

149

272

10

15

220

238

182

174

13191

101

116

96

185

257

21

261

124

162

337

50

55

60

136

311

129

28

10

200

106

47

178

138

289273

262

108

79

80

207

214

135

98

214

189

79

156

230

1

5

188

331

104

202

289

389

267

258

232

234

197

221

276

273

20

352

227

118

41

218

178

30

4

20

322

345

197192

13

93

14

212

149

217

40

147

24

14

258

236

371

333

114

163

56

18

144

18

37

150138

175

179

65

265

127

162

130

98

172

164

130

124

14

198

1

200

95

136

90

78

90

160

148

19

192

22

3

198

198

364

68

105

147

4 4

167

262

2

40

26

7

46

17

84

147

361

201

99

194

115

14

117

5

178

194

147

256

74

185

308

277

279

267

155

145

55265

354

160

151

8

156

143

118

100

260

51

133

35

97

17

172

61

158

97

100

181

69

241

17850

302

247

29095

217

64

130

150

146

40

95

95

177

134

63

80

11

185

160

246

220

4

71

356

24

171

288

242

172

167

218

111

31

260

84

B

M

M

MM

M

M

B B

M

M

MM

B

M

M

M

B

B

MM

BB

M

M

M

M

M

M

MM

M

M

M

M

M

M

B B

B

B

MM

MM

M

M

M M

M

305

MM

B

M

M

M

M

II

241

241

68

49

B

M

100

10087.5

179.5

10285

85

95

52

64

138

64

179

287 275

85

151

154

82

114

21

64

20

13

30

67

141

26

78

65

167

8534

312

85

96

49

388

220

210

39

271

93

200118

5

40

7

76

252

2

14

100

240

262

5

170

98

179

195

185

44

1

128

21

14

35

130

57

108

231

133

210

185

89

48

217

145

242

82

46

69

93

188

79

156200

144

406

65

44

157

60

168

32

108

99

153

71

82

140120

31

98

2519

38

51

8

276

113

143

212

68

100

156

98

196

80

115

162

72

114

11

146140

68

236

115

161

27

27

33

17

M

18

303

89

235

215

246

161

310

176

64

51

151

60

46

54

17

132

106

130

IV

III

222

138

370

156

388

208

118

302

355

192

270

212

251

303

384

176

190

9

147

163

347

325

61

131

Dulhasti

180

M

331

243

15

82

188

5

216

68

176

132

240

194

M

Gelephu

132R

00

75S

132R

0S

0S

132 132R

131180

76

132

131

131

134

132S

135R 133

131131

134 132R

137

134

132R

0S

131128S

129S

122

0S

132R

0S

132

134R

-9S

20S

135

214S

0S

-6S

-30S

0S

0S

132R

132R

233S***S

0R

0S

136

136

0S

132R

145

124

132R

0S

135

75N

132R

838

400 KV LINE CHARGED AT 132KV

III

III

gaumatI

0S

III

III

III

III

113

172

30

54

107

7

107

133

172

4240

50

101

33

45

38

42

15

67

1

26

27

30

42

32 31

25

30

35

35

37

6

18

119

18

30

54 43

28

43

12

1

19

77

45

1

35

65

22

39

53

60

35

106

49

50

77

63

12

63

69

22

108

60

72

37

57

23

64

63

11

60

2

23

82

35 26

87

1

22

93

58

19

74

169

50

35

58841

37

9

3

63

24

41

57

45

110

15 12

82

45

3

37

8

26

23

41

1

8

18

25

33

1

7

5

106

80

4

72

86

20

12

53

45

89

13

5

45

29

38

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69

45

Hydro Generating Station

66kv Transmissioin Substation

132kv Transmission Substation



Thermal/Coal/Gas Generating Station

132kv Lline

220kv Line

400kv Line

State Boundary

LEGEND

Nuclear Generating Station

765kv Line

66kv Lline

Wind Generating Station


400kv Hvdc Substation

International Boundary

Under Construction Line

jala ivaVut ]%%%padna kond`

66koºvaIº saMcaarNa ]pkond`




tapIya ivaVut ]%%%padna kond`

132koºvaIº saMcaarNa laašna



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4286

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3418KAVERI GATE

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197

319

402

430

GANGA GATE

1860

338

BILASPUR GATE

3425

335

GODAVARI GATE

5889567

124 13

SILCHER GATE

1714

706

W3 AREA

BHILAI GATE

WARDHA GATE

7311810

MUNDRA GATE

65122

2445618FOG GATE

TAJ GATE

571STANLEY GATE

EASTERN REGION GATE

3406

S1 S2 GA

TE

3040(SRLDC)

(NLDC)

3386

(Talcher-Kolar not included)

Southern Odisha Gate

846

0 969Talcher-Kolar Pole1/Pole2:

Southern Odisha Load:

Southern Odisha Gen:

Jeypore-Gazuwaka ckt.1/ckt.2: 340338

368316

23

Mahanadi Gate

123

2029

177

2872AXIS MP_GUJ

CHICKEN NECK AXIS

GO

MTI

GA

TE

BIRPARA-SALAKATI GATE

25557

0WESTERN MAHARASHTRA

TIRUNELVELI

159 /

402 KV 398 KV

27 / 54

24 / 54

185 / 32

178 / 39

385 KV

314 / 28310 / 29

393 KV

399 KV

316 / 4

312 / 0

395 KV

72 / 066 / 3

51 / 104

52 / 42

25 / 3

408 / 0

403 / 50

964 / 139

960 / 15

963 / 15

959 / 11

400 KV

400 KV

4 / 2

6 / 24

0 / 039

390 KV

365 / 52

363 / 57

528 / 101

15 / 51

405 KV

18 / 92

404 KV

272 /125

278 / 16

289 /

125

278 / 17

484 / 21

78 / 97

400 KV

173 / 40

170 / 41360 KV

360 KV

187 / 5

185 / 7

368 KV

400 / 40

403 / 79

407 / 63

395 / 62

542 / 84 0 / 45532 / 0541 / 86

167 / 58

0 / 0

174 / 179

0 / 0

0

100 / 53

97 / 58

187 / 53

188 / 54

00

0

199 / 0

189 / 69

75 57

226 / 71

241 / 84

0

0

161 / 56164 / 54

117 / 70

117 / 101

112 / 107

115 / 9

115 / 10122 / 7

137 / 22139 / 21

0

26 / 74

26 / 73

600

111 / 45

SEPL

MEPL

0

90 / 96

398 KVMTPS

380 KV

401 KV

405 KV

91 / 0

101 / 0

58

60

155 / 20

224 / 34

155 / 20

228 / 0

402 KV 73

LANCO396 KV

2 / 01 / 55

0 / 0

407 KV

161 / 6169 / 10

2 / 27

0 / 0

394 KV410 KV

0 / 0

0 / 0

GTMIGMRGVK KSM

0 / 2

0 / 30 / 0

0 / 0

414 KV

238 / 0

59 / 5

145 / 28

147 / 61

/

64 /

139 / 39

7

374 / 0139 / 69

146 / 52

131 / 61

127 / 50174 / 8

166 / 8

404 KV

6261

411 KV

222 / 44

201 / 38

47

65 / 1069 / 18

68 / 1771 / 24408 KV

236 / 0 413 KV

243 / 2 237 / 36

237 / 36

153 / 89

16 / 59

14 / 60

49182 / 87

144 / 30

414 KV

301 / 44

0 / 0

1 / 12

406 KV

62

153 / 2

154 / 1

148 / 0

150 / 32

160 / 29

411 KV

182 / 40

181 / 40

409 KV413 KV 381 / 51

146 / 21

140 / 17140 / 19

140 / 0

244

76 / 90

280 / 85

279 / 33

0

0 / 55

134 / 75132 / 65

407 KV

409 KV

414 KV 402 KVVTPS

207 / 0

70 / 152

214 / 31

0 / 0

10 / 72

302 / 56299 / 55

412 KV 410 KV565 / 9

20 / 110

0 / 0 0 / 2

6 / 2

382 / 11

146 / 45

152 / 70

153 / 2

374 / 2

374 / 1

381 / 21

538 / 48

388 / 41

182 / 32

137 / 17136 / 17

219 / 73

RAMAGUNDAM BHUPALAPALLY476 / 19 480 /

GAJWELMALKARAMDCHPLY

KOCHI

TRICHUR

145 / 35

168 / 34

98 / 8172 / 37

NELLORE

98 / 114

103 / 106

GAZUWAKA

JEYPORE

97 / 72

103 / 60

KALPAKA

SIMHADRI

408 KV

2 / 20

UDUMALPET

SALEM

111 / 46

HOSUR

403 / 99

PALAKKAD

TRIVANDRUM

KOLAR402 / 38

401 KV 15 / 65

489 / 53

490 / 52

CUDAPAH

497 /498 /

KAIGANARENDRA

438 / 81

162 / 58

400 KV

765 KV

102

400 KV

18 / 21

18 / 21 10 / 10310 / 101

409 KV

123 / 66126 / 66

WARANGAL

139 / 31

139 / 35

140 / 16

1084

8

397

15

249 / 111

368 / 94

0 0 11

0

2

251 / 177 493 / 249

SATTENPALLY

937

463

149 / 21

HYDERABAD

HNPCL

142 / 138

144 / 143

61

1647

61

431

361 / 56

227 / 13

235 / 25

237 / 24

167 / 57

183 / 65

988

986

STAGE 2 STAGE 1

1813 I/C

SOUTHERN REGIONAL GRID

780 KV

70 / 54

39 / 16

500 / 237

503 / 22715 / 112

568 / 999565 / 999

182 / 40

0

KHAMMAM

382 KV

181 / 19

78

326 / 71 324 / 71

437 / 12

403

392 / 105394 / 102

403 / 33

412 / 31

25 / 3

920

919

56 / 13

117

1259

601 / 77

397 KV

76 / 34

398 KV

KUDGI NTPC

141 / 70

147 / 69

134 / 73

136 / 67

0 KV

398 KV

51

115

100 / 5

113

2 / 0

418 KV

18

20

97 / 60

98 / 61

230 / 38

227 / 37

199 / 38

204 / 45

10 / 68

242 / 47

SINGARENI SURYAPET0 / 012 / 27

1206

599 / 76 105

10

56 / 40

55 / 41

185 / 66

410 KVP1 P2

135 / 111135 / 111

409 KV

388 KV

399 KV 311 / 5

308 / 5

399 KV324 / 37

28 / 7

31 / 3 31 / 7

392 KV

321 / 18322 / 20

226 / 4

226 / 40 279 / 67276 / 9

142 / 35

138 / 33

92 / 18

93 / 18

59

NCTPS

PONDY

ALAMATY

225 / 29

230 / 5

362 / 5

VALLUR

389 KV

161 / 19

163 / 19

1112149 / 13

143 / 1

240 / 1

80 / 35

1402119 / 12112 / 26

99959

213 / 174

29 / 4

SVCHATRAMS.PERUMBUDUR

395 KV

277 / 73

283 / 8

269 / 77

270 / 14

0 / 70

323 / 67

394 KV

25 / 40

415 KV

397 KV

78 / 68

39 / 0 38 / 25

16 / 47

403 KV

7 / 71

402 KV162 / 20 164 / 0

248 / 60

250 / 60

160 / 21

18 / 110

485 / 26

61 / 11

0 / 0159 / 115

164 / 119

110 /109 /

7171

0193

0

118 / 89

140 / 86

77

52 / 36

53 / 360 / 0

NTPL

403 KV

402 KV

TCRNPS

403 KVTRICHY

MADURAI

961

IL&FS

246 / 24

165

406

1105

PUGALUR

377

76

175 / 19

404 KV

455 / 8

402 KV

448 / 65

6 / 59

6 / 59

299 / 22

10 /

403 KV

997

COASTAL

449 / 65

402 KV

81 / 57

7359

403 KV

6 / 5

245 / 23

162 / 70

163 / 71

435 / 91

443 / 80

0 / 1

0 / 0

NLC1EXP

163 /161 /

3333

81 / 128 107 / 144

NEYVELI ST IINLC2EXP

TVLM

26 / 6525 / 65

P1+P2

NPS

89 / 33

93 / 20

77 / 20

49405 KV

362 / 48

365 / 50

362 / 31

364 / 35

333 / 65462 / 33

46

NPKUNTA

43 / 443 / 4

381 / 9

563 / 6

52 / 56

0 / 0

KURNOOL776 KV

409 KV78

75

273 / 59

252 / 61 KRNL409 KV

143 / 18

146 / 14

778 KV

408 KV19 / 70

16 / 74

254

RAICHUR

RCR

170 / 102

165 / 207167 / 210

179 / 180

249

250251

264

0 / 0

124 / 24

513 / 236

513 / 254

506 / 231

501 / 234

202 / 29192 / 58

L1 L2

203 / 41

137 /

406 KV 0

GOOTY

167 / 24

154 / 17

262 / 70

248 / 23254 / 19

180 / 12

179 / 17

148 / 354

0 / 0

172 /162 /

76

43

382 / 15

517 / 32

123

349 / 58

84 / 67

11 /

1

0 / 0

410 KV

9 /70 /0

9 /

519 / 0

17

85 / 17 79 / 23

342 / 62

401 KV

386 KV

386 KV

380 KV

93 /

0

0

364 / 145

351 / 145

296 / 146

335 / 124

128 / 0

130 / 0

BTPS

BIDADI

1047

NELAMANGALA

376 / 155

404 KV

0 / 0

0 / 0

58KUDGI PG

114

0

397 KV

113 / 51

106 / 42

133

65 / 32

56 / 24

0395 KV

MUNIRABAD

161 / 5

159 / 60

126 / 39

126 / 38

123 / 58

124 / 59

292 / 2

109327 / 31

399 KVRTPS

24 / 29

61

YTPS406 KV

0

400 KV

0 / 94

820

JINDAL

395 / 95377 / 117

10 / 9

203 / 6

400 KV220 / 58

60 / 99

60 / 131

53

224 / 60HIRIYUR

220 / 7219 / 52

378 /377 /

374 / 64386 / 66

9

9

552 / 9

560 / 9

106 / 152

106 / 155

0

103 / 133

111 / 146

121 / 13

150 / 27

402 KV

71 / 27

72 / 28

72 / 27

TALAGUPPA

0

397 KV

172 / 50

166 / 48

0

HASSAN406 KV

235 / 9

239 / 10

UPCL

591171 / 33170 / 35

0391 KVMYSORE

46 / 129

47 / 13147 / 9

46 / 6

3 / 55

218 / 142

365 / 151355 / 932 / 71

57 / 72

57 / 72

574 / 124

571 / 138

388 KV

138 / 6

130 / 11

KOZHIKODE

312 /

20316 /

23

316 /

67312 /

69

379 KV

397 / 228

400 / 156

HOODY

401 / 161

722 / 132

490 / 40

362 / 0364 / 6 233 / 75

4 / 1

754 / 262

754 / 241

515 / 39

570 / 0

526 / 16 591 / 18

359 / 38

352 / 34 343 / 38

347 / 575

50.02HZ

NELLORE PS

97 / 26

1 04 0 002 0

SRISAILAM

0 / 0

0 / 12

416 KV

4 / 26

3 / 26

419 KV

69 / 4770 / 47

138 / 19

0 / 0

UV KONDA

J.MADUGU139 / 81

0 / 0

LINE

12-Apr-2018 LOW HIGH

N.SAGAR

THIRUVALAM

CHITTOOR

118

398 KV

414 KV 423 KV

SGPL

359 / 131

0

43 / 4

252 / 4

251 / 4

134 / 117

K.PATNAM

26 / 53

50 / 0

169 /

169 / 45

120

ARASUR

39 / 2528 / 26

378 KV

0U1:U2:

KALVINDAPATTU

282 / 34

KAMUDHI406 KV

0 / 0

0 / 1212 / 93

1

15 / 5

15 / 4

45 /

5

111 / 3112 /

0 / 0

84 / 71

84 / 72

DHARMAPURI402 KV

337 / 99

331 / 990 / 0

0 / 0

299

219 / 59

222 / 4

211 / 20

222 / 23

0 / 0

129 / 5

466 / 6175 / 20

81 /82 /

115 / 63113 / 63

115 /113 /

111 / 38

111 / 38

111 / 39

32 / 22

31 / 22

KUDNKLM

VIJAYWADA

787 KV

787 KV

611

SRKLM

120

0

0

126

148 / 0

1

778 KV

533 / 19

527 / 21

228 / 22

60 / 59

407 KV

538 / 156

537 / 153

249239

82

62

402 KV

27 / 63 33 / 69

23 / 18

24 / 18

VMGRI

VMGRI

GHANI410 KV 120 0

237 / 44

238 / 44

236 / 44

356 / 124

357 / 126

348

205 / 27

0

243 / 1

444 / 8

439 / 78

144 / 86

178

120

422 KV

89 / 76

0 / 0

43 / 2344 / 23

0 / 0

0 / 0

409 KV

303 / 47

355 / 31

394 / 46

360 / 72

70 / 630 / 0

NARSPUR

KV KOTA

KNRPTY

664 / 168

91 / 53

92 / 53

0 / 130

0 / 0

0 /

00 /0

547 / 212549 / 210

397 KV

120 / 113

120 / 113

328 / 42

0 / 0

MAMIDIPALY

SOMNHLI PALVDI

2 / 8

415 KV

790 KV

WARDHA788 KV

KHLPR SHLPR

NZMBD

NZMBD

CHNDPR (WR)

BHADRAWATI

MHBNGR

JEYPORE

E-BUS118

(ER) TALCHER ANGUL

KAYTHAR

VMGRI

493 / 40

0

735 / 118

123

VOLTAGEICTVOLTAGE

LOW HIGH

LINEICT

506 / 496 /46 9

290 / 127

254

231 / 65215 / 56

170 / 9

DINDI

3 / 12

3 / 12

414 KV

73 / 18

72 / 17

0

0 / 0

0 / 0

0 / 0

14137 / 13

136 /

40 / 27

0 / 0

132 / 11

0

5 / 47

ASUPAKA419 KV

96 / 39 91 / 38

0 / 0

0 /0 /0 /

0

0

0

77 / 18

77 / 16

0 / 0

413 KV

1 / 0

/ 0

1

0

QM QM

QB

QB

QB QB

QM

QM

QM

QM

QM

QMQM QM QM

QM

QM

HZ

QM

QM

QB

QB

QM

QM

QM

QM

QM QM QMQM

QB

QB

QM

QM

QM

QM

QM

QM

DK

DK

DKDK

HZ

HZ

HZ

HZ

HZ

HZ

HZ

HZ

240 / 6

HZ

HT

HT

HT

HT

HZ

CONDUCTOR

LIMITS

OPERATIONAL

LIMITS

173 / 17

173 / 20

0 / 0

410 KV

SK PALLY

186 / 24

188 / 24

12-Apr-2018

335 / 187

356 / 156

163 / 35

159 / 39

327 / 145

368 / 120

16 / 4

11 / 3

KARIKUDI

HZ

HZ

HZ

HZ

776 KV

411 KV

149 / 62

350 / 61

352 / 63

353 / 42351 / 44

MHSWRM

MHSWRM

MHSWRM

NAGAPATINAM9 / 37

9 / 37

14 / 51

6 / 06 / 0

9 / 1

9 / 1

9 / 1

0 / 0

254258

18

6 / 11

394 KV

143 / 42

143 / 41

141 / 40

139 / 37

241 / 79

362 / 0

MANALI

QM

QM

QM

QM

QM

360 /361 /

0

NARNOOR

401 KV

154 / 79157 / 78

286 / 26286 / 26

BPS

72 / 31

251254L1 L2

00

260259L1 L2

243

243L1

L2

252252

260260

L1 L2

L1

L2

254

256

L1

L2

249

241

146 / 46147 / 46

395 KV192 /0 /

64

0

0 / 0

0 / 0

36 / 150 / 019 / 12

17 /14 /

HZHZ

KARMDAI

120

QM

9

7

258

120

0

250249

0 / 0

617 /

615 /

260 / 44

400 KV

0 / 0

132 / 610 / 00 / 0

0 / 0

0 / 0

ANAIKADUVU

205 / 109

00

10

14

11

-11

0

10

4

28

7

-19

3

19

-19

23

1

25

-11

18

18

5

-2

5

5

0

11

25

26

-2

1

18

19

35

-1

10

0

-18

1-2

10

-8

3233

0

14

270 / 62

269 / 61

123

0 KV

0 / 0

0 / 0

0 KV

0 /00 /0

0

0 / 0

0 / 0

0 / 0

0 / 0

0 / 0

45 / 5

385 KV

0 / 00 / 0

121 / 34

0

259 / 46

KTPS-7 KTPS-6

00 / 0

L1

L2

JLRPADU

SHLNGNLR

64 / 56

65 / 56

66 / 2

MARADAM410 KV

157 / 89

153 / 82

RYTPS408 KV

2 / 0 / 4

0 /0

blaa^k saM#yaa AavaRit BLOCK NO FREQ REV NOsaMSaaoQana saM

KALIKIRI

120

62

QMQM

257 / 29

255 / 15

0 / 0

257 / 8

256 / 5

QM

197 / 36

0 / 0

160 / 16 0 / 0

0 / 0

152 / 60153 / 59

RAMUDUGU

574 / 45

43

QM

QM

00 /

37 / 90

53 /00 /

177 / 78

0 / 00 / 0

TTGS

116116

QM

GUTTUR

DHONIKV

0 / 0

0 / 0

TPGUNDU0 KV

169 / 78

160 / 77

SEIL

211 / 18

1 / 2

0 / 0

0 / 0

0 / 0

0 / 0

570 /

PVGDA TUMKUR

YELAHNKA

RASIPLYM

QM

214 / 48

213 / 47

207 / 76204 / 78

1 / 1081 / 107

0 / 10

0 / 10

00

00 /0 / 0

33131 /

116

1002 /

412 KV

2529

781 KV

135 /

46138 /48

999 KV

18343 /338 / 18

1304

74 / 61

70 / 64

301

247 / 19

252 / 18

254 / 102

251 / 102

398 KV

135 /130 /

QM

HZ

HT

HT

QM

231 / 73244 / 78

0 402 KV

QM QM

QM

QM

QM

QM QM

QM

QM

QM

Voltage 420 415 410 405 400 395 390 385 380 375 370 365 360 %N/AARSUR_PG 0 7395 20643 26133 21901 17030 7096 2511 523 27 1 0 0 2BDADI_PG 1813 13639 20607 22177 17567 12496 7731 1314 245 20 0 0 0 7CDDPA_PG 0 25342 29345 23768 14180 3845 189 0 0 0 0 0 0 8GJWKA_PG 189 10899 35618 40306 15551 2198 6 0 0 0 0 0 0 0GHNPR_PG 0 30657 28807 22252 9716 1636 53 9 0 0 0 0 0 11GOOTY_PG 0 33301 18748 12821 3272 225 5 0 0 0 0 0 0 35HASAN_PG 2794 20875 27943 23667 12004 5107 981 168 18 26 5 0 0 11HIRYR_PG 0 25820 31346 16460 6885 1008 34 3 0 0 0 0 0 22HOSUR_PG 0 3681 10196 19242 26510 23735 14730 6482 136 6 0 0 0 0KAIGA_CS 0 23316 30661 25080 12316 3129 237 5 0 0 0 0 0 10KARKD_PG 6254 25453 12042 3700 926 190 3 0 0 0 0 0 0 54KDKLM_CS 0 7954 19037 52476 21038 1684 124 21 0 0 0 0 0 3KHMAM_PG 0 35249 26907 16837 9047 446 0 0 0 0 0 0 0 16KLVPT_PG 370 8199 20414 31492 28752 12226 2999 231 0 0 0 0 0 0KOCHI_PG 0 6809 20927 25134 22979 16870 7920 3015 522 37 1 0 0 1MDURI_PG 0 9274 21337 37762 25725 8716 1209 6 0 0 0 0 0 1MEPL__CS 923 19561 39424 31542 11024 597 1 0 0 0 0 0 0 2MNRBD_PG 0 1974 14452 30860 30800 19368 6401 826 6 0 0 0 0 0MYSOR_PG 0 19846 23559 19542 13746 7727 3555 754 130 23 4 0 0 15NELLR_PG 0 5719 27020 41372 23189 6572 143 0 0 0 0 0 0 1NLRPS_PG 0 20888 39153 30038 10131 892 2 0 0 1 0 0 0 4NLTS2_CS 0 7552 28556 50056 18248 423 0 0 0 0 0 0 0 0NLY1E_CS 0 5047 37069 49886 12596 d 0 0 0 0 0 0 0 0NLY2E_CS 228 11640 40434 43664 8633 96 0 0 0 0 0 0 0 0NRNDR_PG 0 28343 30920 16383 6418 893 20 0 0 0 0 0 0 21NSGAR_PG 0 33393 27377 20104 8433 479 6 0 0 0 0 0 0 15NUNNA_PG 0 33666 21243 3519 134 8 0 0 0 0 0 0 0 44PLKAD_PG 332 5786 23722 27090 24563 15915 5724 1180 156 2 0 1 0 1PONDY_PG 525 10835 26522 40294 18036 4866 1684 1494 393 7 0 0 0 0PUGLR_PG 0 22821 34012 24736 9802 1183 63 0 0 0 0 0 0 12RMGDM_CS 0 39546 37689 20547 3370 53 6 0 0 0 0 0 0 4SALEM_PG 0 15109 28742 30456 19380 6407 494 5 0 0 0 0 0 4SRPDR_PG 0 17855 22834 29910 16330 7952 1646 45 0 0 0 0 0 8TALRC_CS 0 136 28601 51058 16524 8676 123 0 0 0 0 0 0 0TCHRN_PG 0 3867 16534 27552 25742 18055 9236 2926 668 30 1 0 1 0TRCHI_PG 0 5365 16192 28140 28690 19753 5637 473 9 0 0 0 0 1TRNLV_PG 1255 11817 38050 34571 13555 1951 230 4 0 0 0 0 0 4TRVDM_PG 0 6291 12158 34609 32108 13713 3546 697 269 11 0 0 0 2UMPET_PG 0 25924 21462 14135 5887 1769 146 8 0 0 0 0 0 34VALUR_CS 174 10687 29949 43944 19093 1206 0 0 0 9 0 0 0 0WRNGL_PG 6052 31795 28738 17988 8571 1184 25 0 0 0 0 0 0 10YLHNK_PG 0 794 1965 5316 2803 2058 1815 873 193 13 0 0 0 85MDKA4_KL 0 661 7857 25632 25849 24851 12644 5760 1229 186 3 1 0 0ALTY4_TN 2204 34238 12679 1555 10 0 0 0 0 0 0 0 0 52MTPS4_TG 0 8271 18933 15600 14561 3657 42803 67 14 15 0 0 0 1NCTP4_TG 0 10546 29614 44946 18267 1068 0 1 0 0 1 0 0 1SALM4_TN 0 0 0 0 7302 0 0 251 5223 12299 13246 8730 3354 52SPDR4_TN 0 27763 24299 14753 6948 985 20 0 0 0 0 0 0 29SVCM4_TN 0 814 9656 22856 33372 21337 14169 2772 88 0 0 0 0 0BPLP4_AG 5779 28894 26382 8072 549 5 2 0 0 0 0 0 0 34CHTR4_AT 0 24842 33373 21162 8715 1303 58 0 0 0 0 0 0 15DCPL4_AT 458 21446 33993 32694 7351 2198 494 65 2 0 0 0 0 6GJWL4_AT 113 33467 34360 21891 1688 37 7 1 0 0 0 0 0 13GMR14_AG 0 64 7442 23772 31246 29083 10609 2021 154 13 0 0 0 1GWTM4_AG 0 30282 20766 14262 474 109 6 0 0 0 0 0 0 37GVK24_AG 0 33221 24747 9098 1467 152 11 0 0 0 0 44 1 35KLPK4_AT 0 188 7671 40650 40178 15168 1192 7 0 0 0 0 0 0KNSM4_AG 0 23660 24614 11180 2035 238 17 4 0 0 0 0 0 41KTS64_AG 0 22473 36918 23839 12903 2152 8 0 0 0 0 0 0 6MBNR4_AT 127 21485 13688 10509 2722 137 0 0 0 0 0 0 0 54MLKR4_AT 1065 23818 15298 6670 851 42 0 0 0 0 0 0 0 55MMDP4_AT 0 26026 25717 15405 6446 814 36 7 0 0 0 0 0 29NRNR4_AT 0 23778 16055 19207 2687 298 2 0 0 0 0 0 0 41NELR4_AT 0 31193 36670 18524 3743 35 0 0 0 0 0 0 0 14SNKP4_AT 0 32073 25668 16632 2371 258 89 26 7 0 0 0 0 27SLML4_AG 0 22028 11681 1614 93 7 0 0 0 0 0 0 0 66VMGR4_AT 3541 28223 34899 20637 5905 661 52 1 0 0 0 0 0 11VTS44_AG 3070 25546 35543 27544 8399 474 17 0 0 0 0 0 0 4KPTM4_AG 0 24831 40408 25732 6073 172 0 0 0 1 0 0 0 8BTPS__KA 0 3620 24031 45150 27810 4402 43 0 0 0 0 0 0 0GTTUR_KA 19 12851 28252 32818 19351 7355 1160 76 4 0 0 0 0 3HODY4_KA 0 3290 39051 10365 16125 13958 9305 8864 2093 191 5 0 0 2NLMNG_KA 18 11096 18929 23605 19779 13182 7868 2253 325 41 1 0 0 8RTPS__KA 29 13165 29118 29877 21414 8091 529 0 0 0 0 0 0 3TLGPA_KA 22 16272 30179 32895 15087 3694 175 0 0 0 0 0 0 6UPCL__KA 0 37678 37984 12985 1091 122 81 20 17 0 0 0 0 14SMNHL_PG 0 6601 14716 20806 18943 19042 12428 8234 1714 345 37 1 0 2NTPL__CS 62 13039 38838 42797 7201 6 0 2 0 0 0 0 0 3TRVLM_PG 0 25279 33648 19401 7291 707 34 0 0 0 0 0 0 18KRNL7_PG 0 34377 21092 8004 1249 55 1 4 5 0 0 0 0 38RCHR7_PG 0 44325 31417 14163 1240 3 0 0 0 0 0 0 0 13STNP4_AT 0 34681 24128 7211 594 41 0 0 0 0 0 0 0 37KOLAR_PG 1781 10208 20759 28486 17770 14342 4631 293 1 0 0 0 0 7TVLM4_TN 0 25707 34683 19478 6844 668 9 0 0 0 0 0 0 17KYTR4_TN 0 10163 24998 36109 21836 6527 2570 826 149 9 0 0 0 2TTPS4_PG 0 22862 44479 28126 4356 26 0 0 0 0 0 0 0 5NIZAM_PG 0 31944 33157 18273 5124 333 70 0 0 0 0 0 0 15SRKLM_PG 0 23700 31875 26623 9676 966 656 0 0 0 0 0 0 11YTPS__KA 0 11330 44766 38599 9306 153 0 0 0 0 0 0 0 1NGPTM_PG 0 15036 36831 40378 10449 156 0 0 0 0 0 0 0 2KDGI4_PG 0 10661 32323 37657 18620 3877 242 4 0 0 0 0 0 2KZKDE_PG 0 5687 11491 20326 27536 20678 12227 4687 912 152 23 2 1 1KUDGI_CS 0 12451 31871 34331 13768 2499 114 0 0 0 0 0 0 10JMDG4_AT 0 14565 4620 721 151 30 2 1 0 0 0 0 0 81MDGRI_PG 799 21909 20095 11594 4309 546 88 3 0 0 0 0 0 44HNJA4_AG 0 43896 28330 6996 269 0 0 0 0 0 0 0 0 24SCCL4_AG 8 52922 1533 755 403 21 0 0 0 0 0 0 0 47SRPT4_AT 0 24166 11749 2623 129 12 0 0 0 0 0 0 0 63NPKT4_PG 0 16831 30383 25625 18230 6289 629 130 4 0 0 0 0 7UVKA4_AT 0 13366 4344 1215 598 220 43 14 2 1 0 0 0 81DHPU4_PG 0 26514 34076 25101 5359 243 0 0 0 0 0 0 0 13KRMD4_TN 0 3358 17132 25765 22810 20394 10140 3889 981 91 20 0 0 1KMDI4_TN 4531 25433 24272 15169 6713 2307 811 120 16 0 0 0 0 24VMGRI_PG 0 19972 44423 33120 6115 334 321 78 6 0 0 0 0 1KVKT4_AT 0 24974 12493 5724 1930 622 116 13 21 7 0 0 0 56GANI4_AT 11 31751 18905 7278 1308 87 2 0 0 0 0 0 0 44KNPY4_TN 0 480 4075 12895 10354 3657 73 0 0 0 0 0 0 70NRSP4_AT 0 33065 30642 17936 3054 239 24 26 1 0 0 0 0 19PLVD4_TN 0 20191 34456 24924 14443 3330 296 57 24 0 0 0 0 7DNDI4_AT 1 23090 13920 3464 173 0 0 0 0 0 0 0 0 61RTPP4_AG 0 5800 4916 1669 1540 12 22 0 0 0 0 0 0 87ASPK4_AT 0 17122 8893 993 21 0 0 0 0 0 0 0 0 74MHSR7_PG 0 24553 25889 17558 7123 871 288 176 24 0 0 0 0 27MSRM4_AT 0 24987 20954 13242 2143 26 0 0 0 0 0 0 0 42PVGDA_PG 1 14607 10855 10236 4326 8565 203 43 1 0 0 0 0 54MNLI4_TN 1042 11442 20626 26749 19802 4730 301 11 0 0 0 0 0 19BELPS_KA 6 4607 11582 19157 32712 11426 7838 1860 5842 80 2 1 0 10RASI4_TN 0 4604 7012 5230 7831 32906 898 343 22 24 1 0 0 44AKDV4_TN 0 6813 5319 4516 3546 1343 490 347 190 64 11 0 0 78JGPD4_AT 0 37 27477 0 1949 0 0 0 0 0 0 0 0 72SLNR4_TN 0 3151 6799 12266 10629 6217 475 87 0 0 0 0 0 62KTS74_AG 0 10612 10814 10315 1456 1 0 0 0 0 0 0 0 68TTGS4_PG 0 504 2893 4759 80623 15322 859 160 0 0 0 0 0 0

OCC Meeting of Operation Coordination Committee to be held ...

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