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• Jhon Wesly Bangun

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VATECH

Excitation System

VA TECH HYDRO

Plant:

Cikarang II

Unit # GT 8

9/16/2016

THYNE 4 Generator: nominal voltage: 15 kV 3 - phase nominal power: 164.2 MVA 131.4 MW 98.52 MVAr nominal power factor: 0.8 generator: 50 Hz nominal stator current: 6320 A main exciter: 200 Hz nominal field current: 11 A 11 A (V500=1) nominal field voltage: 85.36 V Uf: 300 V (V539=1) field resistance: 7.76 Ω at operation temperature xq: 1.89 pu xd: 2 pu xn: 0 pu IFNL: 363 A Excit. Power supply: prim: sec:

4.9 kVA 0.4 kV 215 V

Hz (PMG) 7.1 A 13 A

VT-ratio

prim: sec:

15 kV 100 V

3 - phase 100 V secundary at rated generator voltage

CT-ratio

prim: sec:

(PMG volts)

Field-Shunt

prim: sec:

8000 A 1 A

AVR MAN

0.790 A secundary at rated generator current

40 A 150 mV

Regulators & Limiters: activ If - min If - max delayed 1 If - max undelayed 1 Ig load angle 1 V/Hz max 1 V/Hz min V/Hz droop PSS rotor temperature alarm rotating diode supervision 1 1 1

3 - phase

4 mA 20 mA

limit 0 1.1 5.2 1.15 80 1.1 0.9 1.1

0 A 30 A

112.5 mV

pu of nominal field current pu of nominal field current pu of nominal field current pu ° pu pu

120 °C 20 s delay min max start 90 110 100 % 0 110 0 %

According the entered ratings we recommend for the configuration parameters the following setting signal 1/3PHASsyn 1/3PHASg RESFBP scale If scale Pg scale Ig scale Ug scale Uthy scale Fsyn scale Fg

variable V2000 V2001 V2002 V2101 V2104 V2103 V2102 V2106 V2009 V2010

recommendation t3 0.002 t3 ### 2 t 110 0.054 t 1642 0.802 t 63 0.031 t 150 0.073 t 215 ###

1.25 1.25

actual 0.0015 0.0015 3 0.0537 0.8018 0.0308 0.0732 0.105 1.25 1.25

329853413.xls / Data 09/16/2016

page 1 / 54

VATECH

Excitation System

329853413.xls / Data 09/16/2016

page 2 / 54

VATECH

Excitation System

VA TECH HYDRO

Cikarang II Unit #GT 8

Ratings and Scalings

Excitation Type THYNE 4

The machine data listed below are the basis for the internal regulator calibration. Nominal Data of Generator 100 % Sn =

164.2 MVA

Power

100 % UGn

=

100 % IGn

=

6320.2 A

100 % Ifn

=

11 A

Field current

100 % fGn cos-phi 100 % Ufn

=

50 Hz

Frequency

= =

0.8 85.36 V

100 % Uthy

=

215 V

100 % fthy

=

15 kV

Generator voltage Generator current

Power factor Field voltage Thyristor voltage

50 Hz

Voltage transformer ratio: Current transformer ratio:

Thyristor frequency 15kV / 100V 8000A / 1A

= =

Nominal Data of Excitation Transformer prim: sec: Scalings of Actual Values variable signal internal value V500 V501 V503 V504 V505 V38 V45 V574 V65 V37 V78 V509 V99 V539

IPIW UGK IGIW IBIW IWIW DEIW FGIW PWIW PBIW USYNIW FSYNIW ALPHIW TANIW UFIW

V900-V949 V950-V999

Timing range Timing range

4.9 kVA 7.1 A 13 A

function

11 A 1.00 = 1.00 = 15 kV 1.00 = 6320.2 A 1.00 = 6320.2 A 1.00 = 6320.2 A 100 °el 1.00 = 1.00 = 50 Hz 1.00 = 164.2 MW 1.00 = 164.2 MVAr 215 V 1.00 = 50 Hz 1.00 = 180 °el 16.00 = 1.00 = 45 °phiind 1.00 = 300 V 1.00= 1.00=

0.4 kV 215 V

100 V sec. nom. volts 0.79 A sec. nom. amps

value at nominal output

Field current Generator voltage Generator current Generator reactive current Generator active current Rotor angle Frequency Generator active power Generator reactive power Thyristor voltage Thyristor frequency Thyristor firing angle Generator tan-phi (pf) Field voltage

1.000 1.000 1.000 0.600 0.800 0.354 1.000 0.800 0.600 1.000 1.000 6.480 0.750 0.285

1s 100 s

Capability of Excitation with the Actual Parameter Settings Ceiling current for max. 10 seconds Pos / neg ceiling voltage (no time limit) Ceiling factor Excit. System Nominal Response (acc. IEEE421.2) Excit. System Voltage Response Time (acc. IEEE421.2)

329853413.xls / NomData 09/16/2016

20 A 277 / -241 V 2.96 7. s-1 < 30 ms

page 3 / 54

VATECH

Excitation System

VA TECH HYDRO

Cikarang II Unit #GT 8

Firmware & Software 1

Jumper Configuration

MRB 3

PGS Signal

Maximum

Jumper X440

main processor

Version

Date

IP1 4Vdc/2,8Vac