SPESIFIKASI PERALATAN MEKANIKAL DAN ELEKTRIKAL PLTM CIKEBO.3.1. Spesifikasi Peralatan Pembangkit

Spesifikasi peralatan Mekanikal dan Elektrikal PLTM Cikebo termasuk

peralatan switchgear di lokasi Pembangkit seperti yang ditunjukan pada Single Line

Diagram (SLD) PLTM Cikebo terlampir adalah sebagai berikut :

1. Turbin.

1 Rated Net Head Meter 56,5

2. Generator.

1 Standar IS 4722 / IEC600342 Rated output kW 2 x 28223 Power kVA 2 x 33204 Rated Current Amp 304,255 Power factor 0,856 Tegangan kV 6,37 Frekwensi Hz 50

3. Main Trasformer

1 Type 3 phase, ONAN, Outdoor2 Kapasitas MVA 2 x 4,03 Frekwensi Hz 504 Tegangan Primer kV 6,35 Tegangan Sekunder kV 206 Type of Tap Changer ON Load Tap Changer7 Taping Range +10 %/- 25 % @ of 5 % steps8 Impedansi % +/- 79 Neutral Grounding Resistor Ohm Resistor 12 Ohm or 40 Ohm10 Accessories - Double float type buchholz

having alarm and trip contacts- Dial type (150 mm) oil

temperature indicatorwith alarm and trip contactsand maximumreading pointer with resettingdevice

- Dial type (150 mm) windingtemperature indicator (WTI)with alarm, cooler control andtrip contacts and maximumreading pointer with resettingdevice

- Magnetic oil level gauge, withalarm contact.

- Flexible oil resistant air bag in

the conservator- Tap position indicator (Local )- Bi-directional wheels with

suitable locking arrangement.- HV neutral CTs for REF

protection.- Rating & Diagram Plate

Anodised Aluminium- Earthing Terminals- Lifting Lugs- Radiators- Silicagel Breather- Pressure relief valve.- Bottom drain Filter Valve- Top Filter Valve

4. Auxiliary Trasformer1 Type 3 phase, ONAN, Indoor2 Kapasitas kVA 1003 Frekwensi Hz 504 Tegangan Primer kV 6,35 Tegangan Sekunder kV 0,46 Type of Tap Changer OFF Load tap changer7 Taping Range +/- 5 % @ of 2.5 % steps8 Impedansi % +/- 49 Accessories - Pressure Gauge

- Dial untuk Thermometer- Oil Level Gauge- Temperature switch (High and

Low)- Hand Hole

5. Peralatan Switchgear

5.1. Switchgear 6,3 kV

5.1.1. Disconector Switch (DS)

1 Type 3 phase2 Tegangan kV 6,33 Rated Voltage kV 7,24 Rated Frquency Hz 505 Tingkat Tegangan Isolasi kV 1256 Arus Nominal Amp 6307 Arus Pemutus Hubung

Singkat untuk 1 detik kA 25

8 Tegangan Kontrol V DC 110 Volt

5.1.2. Transformator Arus (CT)

1 Type 1 phase, Epoxy Resin2 Rasio Arus (Primer/sekunder) Amp 400/1-13 Class Metering 0,2

Proteksi 5P205.1.3. Transformator Tegangan (PT)

1 Type 1 phase, Epoxy Resin2 Tegangan Primer kV 6,6/V33 Tegangan Sekuder V 110/V3

5.2. Swichgear 20 kV

5..2.1 Busbar 20 kV1 Standard IEC 62271-2002 Type of designation (tempat

pemasangan dan konfigurasibusbar)

Indoor metal clad and singlebusbar

3 Rated voltage (Ur) kV 244 Rated lightning impuls

withstand voltage (Up) kV 125

5 Rated power frequencywithstand voltage (Ud) kV 50

6 Rated frequency Hz 507 Rated normal current A 12508 Rated short-time withstand

current ( I k ) kA 25

9 Rated duration of short circuit sec. 110 Rated peak withstand current

( I p ) kA 2,5 x I k

11 Degrees of protection (IP) Minimum IP 4X12 Insulation medium Air13 Material Busbar system Copper with heatshrink14 Number of phase busbar 3

5.2.2 Circuit Breaker 20 KV Indoor1 Standard IEC 602271-1002 Type of designation Withdrawable or truck-mounted3 Operation duty minimum O - 0.3s - CO - 180s CO4 Rated voltage kV 245 Rated nominal current A 6306 Rated lightning impuls

withstand voltage kV 125

7 Breaking capacity kA 2510 Making capacity kA 2,5 x I k11 Rated frequency Hz 5012 Interrupting medium SF6 or Vacuum13 Mechanism type motor spring14 Mechanical endurance M2 (10.000 times)15 Opening time ms 60

16 Closing time ms 11017 Supply voltage :

- Control voltage Vdc 110- Tripping and closing Coils Vdc 110- Motor voltage Vdc 110

5.2.3 Current Transformer 20 kV1 Standard IEC 60044-12 Type of design Post Type, single phase, indoor3 Nominal voltage kV 204 Rated voltage (Ur) kV 245 Rated Frequency (Fr) Hz 506 Rated short time thermal

current (Ith) kA 12,5

7 Rated duration of short circuit s 18 Dynamic withstand current

(Idyn) kA 2,5 x Ith

9 Ratio, class, rated output :- ratio A 150-400/1-1-1

a) for protectio- class - 5P20- burden VA 20

b) for metering :- class - 0,2- Instrument security factor FS 10

10 Insulation temperature class(resin) minimum class E

5.2.4 20 KV Voltage Transformer1 Standard IEC 60044-22 Type of design Indoor3 Rated voltage (Ur) kV 244 Minimum Rated voltage

factor 1,2 Cont and 1,9 - 30 s

7 Rated Frequency Hz 508 Ratio, class, rated output :

a) for metering- ratio V 20.000:3 / 110:3- class - 0.2- burden VA 30

b) for protection- ratio V 20.000:3 / 110:3- class - 3P

9 Rated lightning impulsewithstand voltage (Up) kV 125

10 Power frequency withstandvoltage (Ud) kV 50

5.2.5 Protection Relay

1 Three-phase over current andEarth Fault

Three-phase over current andEarth Fault (51S, 51G)

2 Directional relay Directional relay (67)3 Under voltage relay Under voltage relay (27)

5.2.6 Test Plug for ProtectionRelay and Metering

Type Banana plug5.2.7. Energy Meter

1 Type Digital kWh & kVARh meter,3P 4W

2 Class of meter 0.2s3 Rated input :

- current from 20 kVmeasurement A 1 or 5

- voltage from 20 kV VT V 110:35 Quantity to be measured &

recorded :- sending Wh & Watt- receiving Wh & Watt- sending VARh & VAR- receiving VARh & VAR- sending VAh & VA- receiving VAh & VA

6 Quantity to be measured :- voltage (kV)- phase current (A)- power factor- frequency (Hz)

7 Energy recording interval(programmable) minutes

1, 5, 10, 15, 20, 30and 60

8 Tariff calculation modefunctions Minimum 3

9 Rated operating conditions :- rated auxiliary supply

voltage Vdc 110 10%

- temperature range C 0 - 50- humidity range %RH 20 - 90

10 Port communication complyto IEC 61850

Modem completed with opticalwire port or RS485 or RJ45

5.2.8 Watt Meter (include Var,Ampere and Volt meter)

1 Type Digital, 3P 4W2 Class of accuracy 0.23 Rated input :

- current from 20 kVmeasurement A 1 or 5

- voltage from 20 kV VT V 110/34 Sampling rate cyc/sec 3 or more5 Rated operating conditions :

- rated supply voltage Vdc 110 10%- temperature range C 0 50- humidity range %RH 20 90

6 Display LCD7 Mounting position Flush8 Design of case Square

5.3. Lightning Arrester (LA)

1 Tegangan kV 202 Rated Voltage kV 16,8 - 243 Arus pengisian Normal kA 104 Tingkat Tegangan Residu

(RVL)Tidak lebih dari 2,7

5 Tingkat Tegangan Isolasi kV 125

5.4. Switchgear 0,4 kV

5.4.1. Busbar 0,4 kV

1 Tegangan Isolasi V 6002 Tegangan Operasi V 4003 Arus Nominal A 1604 Ketahanan Arus Sesaat

untuk 1 detikkA 10

5 Penguji Tegangan Dielektrik kV 2,5

5.4.2. Pemutus Beban

1 Type ACB 4P2 Tegangan Isolasi V 6003 Tegangan Operasi V 400

4 Arus Nominal A 160

5 Arus Pemutus HubungSingkat

kA 10

6. Protection, Kontrol dan Sistem Metering

6.1 Generator Protection Stator earth fault protection (64 S)Under/Over voltage protection (27/59)Voltage controled over current prot (51 V)Negative phase sequence protection (46)Loss of excitation protection (40)Reverse power protection (32P)Over/Under Frequency (81O/U)Generator diferential protection (87G)Stator Thermal Protection (49)Generator Ground Fault protection (59N)Over Excitation Protection (240Unbalance Voltage Protection (47)Digital Metering Sistem (DMS)(A,kV,Hz,kW,kVars,kWh dan kVArh)

6.2 Transformer Protection Bucholz Trip Realay (63)Transformer Diferential Relay (87GT)Inst/IDMT Over current protection (51)Inst/IDMT Neutral Over current protection(51N)Digital Metering Sistem (DMS)(A,kV,Hz,kW,kVars,kWh dan kVArh)Oil Temperatur Indicator (OTI)Winding Temperatur Indicator (WTI)

6.3 Outgoing Line Protection Inst/IDMT Over current protection (51)Inst/IDMT Neutral Over current protection(51N)Under/Over Voltage Protection (27/59)Digital Metering Sistem (DMS)(A,kV,Hz,kW,kVars,kWh dan kVArh)

6.4 Synchronization Check Synchronization Relay (25)Double Frequecy Meter (DFM)Double Voltage Meter (DVM)

6.5 Automatic Voltage Regulation(AVR)

DC Field Curret (AF)DC Field Voltage (VF)Line Voltage (VG)Stator Current (IG)Voltage Balance Relay (60)

6.6 400 V Protection andMetering

Over Current Protection (51)Earth Fault Protection (51N)Voltmeter (V)Digital Metering Sistem (DMS) (A,kV,kW)

7 AC/DC System7.1 Storage Batery

Type Nickel Cadmium AlkalineJumlah Sel 86 selTegangan Nominal 110 V, 150 A, 5 jam DischargeTegangan Maksimum 121 V

7.2 Battery Charger

Type Thyristor, suitable for 3 phase 340 V ACAC Input Voltage 3 phase 380/400 V ACMaksimum Teg Ouput DC 121V DCRated DC Output Current 50 A

7.3 DC PanelOne Set Bus 110 V DC, Max 121 V DCIncoming MCB 110 V DC, 63 AmpOutGoing MCB 110 V DCMetering Volt, Amp

7.4 Uninteruptable Power Supply(UPS)Type Single phase, 220 V, 50 Hz, 0,8 Laging to

1,0 PFCooling System Natural Air Ventilated