GENERATOR PROTECTION RELAY SETTINGS
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Transcript of GENERATOR PROTECTION RELAY SETTINGS
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
FRONT MOUNTED EQUIPMENTS
GR1 Generator Differential Protn (87G) CT Sec: 5A, PT Sec:110V AC (PH-PH) SIEMENS 3 7UM62 1 0 0 0 0 1
Gen. B/U Impedence Protn - Stage-1(21G1) Aux. Supply : 220V DC
Gen. B/U Impedence Protn - Stage-2(21G1) 15B/I, 20B/O + 1 LIVE STATUS CONTACT
Gen. Under Frequency Stage -1(81UF) Case Size : 1/1 19", IEC61850 PROTOCOL
Gen. Under Frequency Stage -2(81UF) Time Stage-1&2 MLFB : 7UM6225-6EB92-3CB0-LOS
Gen. Over Frequency Protn. (81OF)
Reverse Power Relay(32G)+Turbine trip Relay Operated/
Turbine stop Volve Closed+Time Stage-1
Reverse Power Relay(32G) +Time Stage-2
Low Power Relay(37G)+Turbine trip Relay Operated/
Turbine stop Volve Closed+Timer
Gen. Under Voltage Protn. (27G)
Gen. Over Voltage Stage-1 & 2 (59G)
Gen. Over Fluxing Stage-1 (99G)
Gen. Over Fluxing Stage-2 (99G) With GCB Open & Closed
Gen. Pole Slipping (78G)
Gen. Loss of Excitation (40G)
Gen. Loss of Excitation With Under Voltage (27/40G)
Gen. Negetive Phase Sequence (46) Stage-1
Gen. Neg. Phase Sequence (46) Stage-2 Time Stage-1&2
Gen. Stator Over load (50GS)
Gen. Stator earth fault 95% (64G2)
GCB Local Breaker Backup (50LBB)
Dead machine Protection (61B)
Voltage Balance Protection (60G21, 60G22, 60G23)
Gen. Open delta earth Fault Protection (59N)
60G11,60G12 Voltage Balance Relay Aux. Supply : 220V DC, 2NO+4CO, S/R AREVA 3 MVAPM32 3 3 0 0 0 6
60G13,60G21 PT Sec:110V AC (PH-PH) , Case Size: Midos Case - 4
60G22,60G23 Wiring diagram: F1MVAPM32001
Model: MVAPM32D1AA2001A
186A1,186A2-1 High speed G roup-1 Class A//C 3 phase trip Aux. Supply : 220V DC AREVA 3 MVAJ20 5 0 0 0 0 5
186A2-2, 186A2-3 relay (Hand/Electrical Reset) Case: Midos size:4
186C-1, Contacts: 14NO+6NC (Hand/Electrical Reset)
Flag: Yes, Mounting: Flush
Model: MVAJ205LA1006A
286A1, 286A2-1 High speed G roup-2 Class A//C 3 phase trip Aux. Supply : 220V DC AREVA 3 MVAJ20 0 5 0 0 0 5
286A2-2, 286A2-3 relay (Hand/Electrical Reset) Case: Midos size:4
286C-1, Contacts: 14NO+6NC (Hand/Electrical Reset)
Flag: Yes, Mounting: Flush
Model: MVAJ205LA1006A
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Date : 30.04.09Description :- Equipment List
QTY / Panel
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
PREP : MR
CHKD : MS
Circuit: GRP # UNIT10APPD : MS
SIEMENSSIEMENSSIEMENSSIEMENSOriginal/Replacement for/
(4)-G719EA-XG970-ER901-R4Replaced by :-
Page 1 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
GR2 Generator Differential Protn (87G) CT Sec: 5A, PT Sec:110V AC (PH-PH) SIEMENS 3 7UM62 0 1 0 0 0 1
Gen. B/U Impedence Protn - Stage-1(21G1) Aux. Supply : 220V DC
Gen. B/U Impedence Protn - Stage-2(21G1) 15B/I, 20B/O + 1 LIVE STATUS CONTACT
Gen. Under Frequency Stage -1(81UF) Case Size : 1/1 19", IEC61850 PROTOCOL
Gen. Under Frequency Stage -2(81UF) Time Stage-1&2 MLFB : 7UM6225-6EB92-3CB0-LOS
Gen. Over Frequency Protn. (81OF)
Reverse Power Relay(32G)+Turbine trip Relay Operated/
Turbine stop Volve Closed+Time Stage-1
Reverse Power Relay(32G) +Time Stage-2
Low Power Relay(37G)+Turbine trip Relay Operated/
Turbine stop Volve Closed+Timer
Gen. Under Voltage Protn. (27G)
Gen. Over Voltage Stage-1 & 2 (59G)
Gen. Over Fluxing Stage-1 (99G)
Gen. Over Fluxing Stage-2 (99G) With GCB Open & Closed
Gen. Pole Slipping (78G)
Gen. Loss of Excitation (40G)
Gen. Loss of Excitation With Under Voltage (27/40G)
Gen. Negetive Phase Sequence (46) Stage-1
Gen. Neg. Phase Sequence (46) Stage-2 Time Stage-1&2
Gen. Stator Over load (50GS)
Gen. Stator earth fault 95% (64G2)
GCB Local Breaker Backup (50LBB)
Dead machine Protection (61B)
Voltage Balance Protection (60G21, 60G22, 60G23)
Gen. Open delta earth Fault Protection (59N)
95/186A1,95/186A2-1 Supervision relay for Trip Relay Supervision Relay AREVA 3 MVAXM21 7 0 0 2 1 10
95/186A2-2,95/186A2-3 High Speed Triping relay Aux. Supply: 220V DC, Contacts: 1NO+2NC S/R
95/186B,95/186C-1, Flag: Yes, Case:-Size 3 Midos: Mounting-Flush
95/186C-2,95/186DUT10A, Model no: MVAXM21C1CE3005A
95/186DUT10B, WDG: F1MVAXM21001
95/186DST1
95/286A1,95/286A2-1 Supervision relay for Trip Relay Supervision Relay AREVA 3 MVAXM21 0 7 0 2 1 10
95/286A2-2,95/286A2-3 High Speed Triping relay Aux. Supply: 220V DC, Contacts: 1NO+2NC S/R
95/286B, 95/286C-1, Flag: Yes, Case:-Size 3 Midos: Mounting-Flush
95/286C-2,95/286DUT10A, Model no: MVAXM21C1CE3005A
95/286DUT10B, WDG: F1MVAXM21001
95/286DST1
80A, 80B DC Supervision cum changeover Relay Aux. Volt:220V DC, 2N/O, 2C/O, Flag- NO, S/R AREVA 3 MVAAM11 1 1 0 0 2
Slug: 80+/-20ms on D/O Size:2 MIDOS,Flush
Model No:MVAAM11BIAG1030A
WDG: Z1MVAAM11011
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Date : 30.04.09Description :- Equipment List
PREP : MR
CHKD : MS
Circuit: GRP # UNIT10APPD : MS
SIEMENSSIEMENSSIEMENSSIEMENSOriginal/Replacement for/
(4)-G719EA-XG970-ER901-R4Replaced by :-
Page 2 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
87GT/64GT/99GT, Numerical Generator Transformer Differential, CT Sec: 1A SIEMENS 3 7UT633 0 0 1 0 0 1
With inbuilt Over fluxing & High impedance REF Aux. Supply : 220V DC, 110V AC
21B/I, 24B/O + 1 LIVE STATUS CONTACT
Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,
MLFB : 7UT6331-6EB92-1BB1-LOS
87/51UT-10A Numerical Unit Transformer for CT Sec: 1A SIEMENS 3 7UT633 0 0 0 2 0 2
87/51UT-10B Differential protection relay With Inbuilt O/C Relay Aux. Supply : 220V DC
21B/I, 24B/O + 1 LIVE STATUS CONTACT
Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,
MLFB : 7UT6331-6EB92-1AA1-LOS
87/51ST1 Numerical station Transformer for CT Sec: 1A SIEMENS 3 7UT633 0 0 0 0 1 1
Differential protection relay With Inbuilt O/C Relay Aux. Supply : 220V DC
21B/I, 24B/O + 1 LIVE STATUS CONTACT
Case Size : 1 /1 x 19", IEC 61850 PROTOCOL,
FO DOUBLE, ST CONNECTOR
MLFB : 7UT6331-6EB92-1AA1-LOS
51NGT GT Backup earth fault protection Relay CT SEC:1A SIEMENS 3 7SJ80 0 0 1 0 0 1
Auxiliary voltage: 220V DC
Size: 1/6 19"; Mounting: Flush
3 BI; 5 BO +1 LIVE STATUS CONTACT
IEC 61850 PROTOCOL
MLFB: 7SJ8011-5EB96-1FA0-LOS
50-UT10A Instantaneous over current CT SEC:1A SIEMENS 3 7SJ80 0 0 0 2 0 2
50-UT10B protection relay for unit transformers Auxiliary voltage: 220V DC
Size: 1/6 19"; Mounting: Flush
3 BI; 5 BO +1 LIVE STATUS CONTACT
IEC 61850 PROTOCOL
MLFB: 7SJ8011-5EB96-1FA0-LOS
50-ST1 Instantaneous over current CT SEC:1A SIEMENS 3 7SJ80 0 0 0 0 1 1
protection relay for station transformer Auxiliary voltage: 220V DC
Size: 1/6 19"; Mounting: Flush
3 BI; 5 BO +1 LIVE STATUS CONTACT
IEC 61850 PROTOCOL
MLFB: 7SJ8011-5EB96-1FA0-LOS
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name
Date : 30.04.09
Original/Replacement for/
PREP : MR
SIEMENSSIEMENSSIEMENSSIEMENS
CHKD : MS
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
Circuit: GRP # UNIT10APPD : MS
(4)-G719EA-XG970-ER901-R4Replaced by :-
Description :- Equipment List
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Page 3 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
64-1-UT10A Restricted earth fault protection CT SEC:1A SIEMENS 3 7SJ80 0 0 0 4 0 4
64-2-UT10A relay for LV Side Unit transformer Auxiliary voltage: 220V DC
64-1-UT10B Size: 1/6 19"; Mounting: Flush
64-2-UT10B 3 BI; 5 BO +1 LIVE STATUS CONTACT
IEC 61850 PROTOCOL, FO DOUBLE, ST CONNECTOR
MLFB: 7SJ8011-5EB96-1FA0-LOS
64-1-ST1 Restricted earth fault protection CT SEC:1A SIEMENS 3 7SJ80 0 0 0 0 2 2
64-2-ST1 relay for LV Side Station transformer Auxiliary voltage: 220V DC
Size: 1/6 19"; Mounting: Flush
3 BI; 5 BO +1 LIVE STATUS CONTACT
IEC 61850 PROTOCOL, FO DOUBLE, ST CONNECTOR
MLFB: 7SJ8011-5EB96-1FA0-LOS
BLK - GR1A / 1B /1C Test Block 10 Terminal AREVA 3 MPG 3 3 2 6 3 17
BLK - GR2A / 2B /2C
BLK - 87G1 / 87G2 / 87A
BLK - 50A / 64A / 87B
BLK - 50B / 64B / 87 / 50
/64
G20Hz 20Hz Generator for 100% SEF Model No : 7XT33 in 7XP20 Case SIEMENS 3 7XT33 1 0 0 0 0 1
(For 100% Stator Earth Fault) MLFB NO: 7XT3300-0CA00
FGR1 Bandpass Filter for 100% SEF Model No : 7XT34 in 7XP20 Case SIEMENS 3 7XT34 1 0 0 0 0 1
(For 100% Stator Earth Fault) MLFB NO: 7XT3400-0CA00
SCUGRI Controlling Unit for Rotor Earth Fault MLFB NO: 7XT7100-0EA00 SIEMENS 3 7XT71 0 1 0 0 0 1
(For Rotor Earth Fault)
RCUGR Resistor for 1-3Hz Rotor Earth Fault Protection MLFB NO: 7XR6004-0CA00 SIEMENS 3 7X600 0 1 0 0 0 1
(For Rotor Earth Fault)
59N Neutral Displacement earth fault PT Sec , 110V AC SIEMENS 3 7SJ62 0 1 0 0 0 1
protection relay Aux. Supply : 220V DC
11B/I,6 B/O+1 LIVE STATUS CONTACT
CASE SIZE:1/3x19", IEC 61850 PROTOCOL
MLFB:7SJ6221-6EB92-1FE0-LOS
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name
CHKD : MS
PREP : MR
Circuit: GRP # UNIT10APPD : MS
SIEMENSSIEMENSSIEMENSSIEMENSOriginal/Replacement for/
Replaced by :-
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Date : 30.04.09Description :- Equipment List
(4)-G719EA-XG970-ER901-R4
Page 4 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
195, 295 Trip Circuit Supervision relay 220V DC, 1N/O + 2N/C SR,Flag-Yes, AREVA 3 MVAXM31 0 0 2 0 0 2
for GCB Size:4 Midos: Mounting: Flush
Model No:MVAXM31D1CE3005A
WDG: F1MVAXM31001
GCB, GISOLA, Contact multiplication relay For Aux. Supply:220V DC AREVA 3 VAJC11 0 0 3 0 0 3
GISOLB GCB / Generator &I solator Case:1/2NV
Contacts:4NO + 4N/C E/R
Mounting:Flush, Flag: Yes
WDG: BDZ075.6-9
MLFB NO: VAJC11ZF8305A(CH)
186B Trip Relay For UTA, UTB Trip Relay AREVA 3 MVAJ10 2 2 0 4 0 8
186C-2 Case : Midos case size :2
186D-UT10A Contacts : 8NO+2NC (Hand/Electrical Reset)
186D-UT10B Flag: Yes, Mounting: Flush
286B Aux supply : 220V DC
286C-2 Electrical Reset
286D-UT10A Model : MVAJ105JA1002A
286D-UT10B
186D-ST Trip Relay For ST Trip Relay AREVA 3 MVAJ10 0 0 0 0 2 2
286D-ST Case : Midos case size :2
Contacts : 8NO+2NC (Hand/Electrical Reset)
Flag: Yes, Mounting: Flush
Aux supply : 220V DC
Electrical Reset
Model : MVAJ105JA1002A
ES-1, ES-2 Earthernet Swithes 10 Port Switch 10/100 MBPS RUGGED COM 3 RSG2100 0 0 1 1 0 2
Aus supply: 220V DC, Dual Supply
19" Rack Mounting Type
6 Optical Port (ST Connector)
4 RJ45 Port
RSG2100 -R-RM-HI-HI-FX01-FX01-FX01-XXXX-XXXX-XXXX--XXXX-XXXX-TX01-TX01
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name
Circuit: GRP # UNIT10APPD : MS
SIEMENSSIEMENSSIEMENSSIEMENS
PREP : MR
CHKD : MS
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Date : 30.04.09Description :- Equipment List
(4)-G719EA-XG970-ER901-R4Replaced by :-
Original/Replacement for/
Page 5 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
2/186A1, 2/186A2 Wipe out Timer Aux. Volt:220V DC, Contact : 2N/O , 2C/O , S/R AREVA 3 MVTTM 4 4 0 0 0 8
2/186B, 2/186C Delay on Pick up : 0.01 - 9.99s
2/286A1, 2/286A2 Case : Midos case size :3 MIDOS
2/286B, 2/286C Model No:MVTTM14C1AA1002A
WDG: F10MVTTM14501
PB01,PB02,PB03,PB04 Push Buttton for Trip Relay Reset- GROUP A Normal actuator with plastic front ring and holder of black colour SIEMENS 3 3SB 4 0 0 0 0 4
3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A
PB05,PB06,PB07,PB08 Push Buttton for Trip Relay Reset- GROUP B contact block for rear connection SIEMENS 3 3SB 0 4 0 0 0 4
3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A
PB09,PB10,PB11,PB12 Pushbutton contact block for rear connection SIEMENS 3 3SB 0 0 0 4 0 4
3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A
PB13, PB14 Pushbutton contact block for rear connection SIEMENS 3 3SB 0 0 0 0 2 2
3SB1200- 0AB01 (ACTUATOR)+ 3SB1400-0A
LBBSW1, LBBSW2 LBB In-Out Selector Handle: Pistol Grip, Black,8 Ways SWITRON 3 SPC32P 1 1 0 0 0 2
switch for LBB protn. Position: IN/OUT,Stayput , LOCKABLE in both position
SL01, SL02 Indicating lamp for Relay DC1/DC2 healthy White Holder with indicator - 3SB14052WZ3 SIEMENS 3 3SB 1 1 0 0 0 2
Lamp Holder with Rear Connection-3SB04012C
DCSS DC Supply Selector Switch Stay Put Non-Lockable With Pistol Grip Handle SWITRON 3 1 0 0 0 0 1
Position (1) DC1 (2) INDEPENDENT (3) DC2
Bezel size: 75 Sq.mm
No. of Ways : 8
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name SIEMENSSIEMENSSIEMENSSIEMENS
Circuit: GRP # UNIT10
Original/Replacement for/
CHKD : MS
(4)-G719EA-XG970-ER901-R4
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Date : 30.04.09
PREP : MR
Sales Ref : 3001506934
Replaced by :-
APPD : MS
Description :- Equipment List
Page 6 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
INTERNALLY MOUNTED EQUIPMENTS
HT Space heater 100W,230V AC APT 3 1 1 1 1 1 5
CONTROL
HTS ON\OFF switch 15 A Anchor 1 1 1 1 1 1 5
PS Power socket 5/15A, 3Pin Anchor 1 1 1 1 1 1 5
TH Thermostat 30-90 deg cent APT 3 1 1 1 1 1 5
CONTROL
CILS Cubicle Door Operated Switch Limit Switch(1No+2Nc)-3SE30230A SIEMENS 1 1 1 1 1 1 5
CFL Compact Fluoroscent Lamp 240 V AC, 20W Philips 1 1 1 1 1 1 5
LK Link Base + Link and holder 3NW20NNSF+3NWNNSL SIEMENS 1 5 5 3 15 4 32
CT-1, CT-2 NCT for 100% SEF Protection 400/5A, 5VA SIEMENS 5 4NC5225 0 0 0 0 0 2
LOOSE SUPPLY Loose supply and same to be provided in Model No : 4NC 5225
NGT cubicle MLFB NO: 4NC5225-2CE20
SD1 Surge Divertor Model No.: C53207-A401-D77-1 SIEMENS 3 0 0 1 4 2 7
SR1 Stablizing Resistor Range : 0 - 1000 Ohms , 200Watts AREVA 3 0 0 1 4 2 7
DC MCB DC MCB 32A, 220VDC SIEMENS 3 1 1 0 0 0 2
Double Pole , Aux contact:1NC 10A, 220VDC SIEMENS 3 3 3 0 0 0 6
4A, 220VDC SIEMENS 3 1 1 10 4 2 18
AC MCB AC MCB 16A, 230VAC SIEMENS 3 1 1 1 1 1 5
Single Pole & Neutral , Aux contact:1NC
Test plug MPB Test Plug (LOOSE SUPPLY) AREVA 3 MPB 0 0 0 0 0 3
FO CABLE CABLE FO patch cable (ST-ST) 100BaseFX 1300nm, DLINK/ 5
MultiMode 62,5/125µm,2 core, Fibre Glass EQUIVALENT
a. 10m 0 0 0 0 0 1
b. 5m 0 0 0 0 0 6
c. 3m 0 0 0 0 0 13
D1 to D32 DIODE CDL4U(E)D3 CONNECTWELL 3 BY127 16 16 0 0 0 32
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name SIEMENSSIEMENSSIEMENSSIEMENS
CHKD : MS
Sales Ref : 3001506934
Description :- Equipment List
Original/Replacement for/
Circuit: GRP # UNIT10APPD : MS
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Date : 30.04.09
PREP : MR
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
(4)-G719EA-XG970-ER901-R4Replaced by :-
Page 7 of 8
S Equipment List for Protn. for Generator Relay Panel
Func. Ref Description Specification Make Dis Type Total Qty.
10CHA00GH001 10CHA00GH002 10CHA00GH003 10CHA00GH004 10CHA00GH005
QTY / Panel
TM1703 CP-6014 Master Control Module MLFB: 6MF1113-0GA140-AA0BB SIEMENS 3 CP-6014 0 0 1 0 0 1
(For Transformer (4 - 20mA) Network interface Processor SM-2556 MLFB: 6MF1013-0CF56-0AA1 SIEMENS 3 SM-2556 0 0 2 0 0 2
Analog Input to Suitable for CM-2860 Patch Plug standard V28,ET,TR MLFB: 6MF1211-0CJ60-0AC0 SIEMENS 3 CM-2860 0 0 2 0 0 2
12AI) Mounted in DIN Channel PS-6630 Power Supply 24-60VDC EMC+ MLFB: 6MF1113-0GG30-0AA1 SIEMENS 3 PS-6630 0 0 3 0 0 3
AI-6300 Analog Input 2x2 ±20mA/±10V MLFB: 6MF1113-0GD00-0AA1 SIEMENS 3 AI-6300 0 0 6 0 0 6
DI-6102 Digital Input 2x8, 24-60VDC, Ims MLFB: 6MF1113-0GB002-0AA1 SIEMENS 3 DI-6102 0 0 12 0 0 12
PE-6410 Peripheral Contr. Ax-Bus electr. MLFB: 6MF1113-0GE100-AF0 SIEMENS 3 PE-6410 0 0 3 0 0 3
Flash Card 256MB MLFB: 6MF1213-1GA05-0AD0 SIEMENS 3 - 0 0 1 0 0 1
USB-Cable Type A-A AWG20/28 3m MLFB: 6MF1313-0GC01-0AA1 SIEMENS 3 - 0 0 3 0 0 3
TPP 3M TP Patch cable 3m Cat 5, grey MLFB: 6MF1304-0BC52-0AA1 3 - 0 0 3 0 0 3
Converter Input:220v DC Output:48V DC Phoenix 3 --- 0 0 1 0 0 1
CM-0843 Bus Interfaces Module Electrical MLFB: 6MF11110AJ430AH0 SIEMENS 3 CM-0843 0 0 1 0 0 1
PT MCB AC MCB 2A, 110VAC SIEMENS 3 3 3 3 0 0 9
Four Pole Aux contact:1 NC
3PP13 Resistor for under excitation protection MLFB NO: 3PP1326-OBZ-K2Y SIEMENS 3 3PP13 0 1 0 0 0 1
(Voltage divider, 20:1), group 012009
CAPACITOR Capacitor for Excitation circuit 10µF,250V Reputed 3 1 1
Item No : Qty : 1
R4 QT CORRECTED 09.06.10 KRK
R3 REVISED AS PER COMMENTS DT. 22.12.09 23.12.09 KRK
R2 REVISED AS PER COMMENTS DT. 25.09.09 11.11.09 KRK
Issue Remarks Date Name
ENGINEER : TCE CONSULTING ENGINEERS LIMITED
Dis: 1- W Stock, 2- W non stock, 3- W non stock others, 4- Project Supply, 5- Loose Supply
Sales Ref : 3001506934Client : COASTAL GUJARAT POWER LIMITED
Project : 4000 MW ULTRA MEGA POWER PLANT AT MUNDRA, GUJARAT
Original/Replacement for/(4)-G719EA-XG970-ER901-R4
Replaced by :-
Date : 30.04.09Description :- Equipment List
PREP : MR
CHKD : MS
Circuit: GRP # UNIT10APPD : MS
SIEMENSSIEMENSSIEMENSSIEMENS
Page 8 of 8
SIEMENS
TCE.5146A-704-0009
SITE1 MARKED THUS CORRECTION / MODIFICATION TO BE DONE AT SITE
BY COMMISIONING ENGINEER
DT 10.03.11
SHEET DRAWING DESCRIPTION
00 LIST OF DRAWINGS
01 LIST OF DRAWINGS
02 LIST OF REFERENCE DRAWINGS
03 LIST OF DRAWINGS
04 PROTECTION TRIP LOGIC - GROUP-1
05 PROTECTION TRIP INITIATION - GROUP-1
06 PROTECTION TRIP INITIATION - GROUP-1
07 PROTECTION TRIP INITIATION - GROUP-1
08 PROTECTION TRIP LOGIC - GROUP-2
09 PROTECTION TRIP INITIATION - GROUP-2
10 PROTECTION TRIP INITIATION - GROUP-2
11 PROTECTION TRIP INITIATION - GROUP-2
12 PROTECTION TRIP INITIATION - GROUP-2 & 4-20mA INPUTS TO RTU
13 DIGITAL INPUTS TO RTU
14 SYSTEM SINGLE LINE DIAGRAM
15 PROTECTION SINGLE LINE DIAGRAM
16 PROTECTION SINGLE LINE DIAGRAM
17 GEN. LINE SIDE CT CORE DISTRIBUTION
18 GEN. NEUTRAL SIDE CT CORE DISTRIBUTION
19 UT-10A CT CORE DISTRIBUTION
20 UT-10B CT CORE DISTRIBUTION
21 ST-1 CT CORE DISTRIBUTION
22 VT-1 CORE DISTRIBUTION
23 VT-2 CORE DISTRIBUTION
24 VT-3 CORE DISTRIBUTION
25 AC SUPPLY DISTRIBUTION
26 DC SUPPLY DISTRIBUTION CIRCUIT
27 VOLTAGE SUPVN. (60G11) RELAY CKT
28 VOLTAGE SUPVN. (60G12) RELAY CKT
29 VOLTAGE SUPVN. (60G13) RELAY CKT
30 VOLTAGE SUPVN. (60G21) RELAY CKT
31 VOLTAGE SUPVN. (60G22) RELAY CKT
32 VOLTAGE SUPVN. (60G23) RELAY CKT
33 GEN. PROTN. RELAY (GR-1) AC CKT
34 GEN. PROTN. RELAY (GR-1) B/I CKT
35 GEN. PROTN. RELAY (GR-1) B/I CKT
37 GEN. PROTN. RELAY (GR-1) B/O CKT
38 GEN. PROTN. RELAY (GR-2) AC CKT
39 GEN.- PROTN. RELAY (GR-2) B/I CKT
40 GEN. PROTN. RELAY (GR-2) B/I CKT
41 GEN. PROTN. RELAY (GR-2) B/O CKT
42 GEN. PROTN. RELAY (GR-2) B/O CKT
43 GEN. OPEN DELTA E/F PROTN. AC CKT
44 GEN. OPEN DELTA E/F PROTN. BI CKT
45 GEN. OPEN DELTA PROTN. BO CKT
46 GEN. GROUP-1 CLASS-A1 TRIP RELAY CKT
47 GEN. GROUP-1 CLASS-A2 TRIP RELAY CKT
48 GEN. GROUP-1 CLASS-A2 TRIP RELAY CKT
49 GEN. GROUP-1 CLASS-A2 TRIP RELAY CKT
50 GEN. GROUP-1 CLASS-B TRIP RELAY CKT
51 GEN. GROUP-1 CLASS-C TRIP RELAY CKT
52 GEN. GROUP-1 CLASS-C TRIP RELAY CKT
53 GEN. GROUP-2 CLASS-A1 TRIP RELAY CKT
54 GEN. GROUP-2 CLASS-A2 TRIP RELAY CKT
55 GEN. GROUP-2 CLASS A2 TRIP RELAY CKT
56 GEN. GROUP-2 CLASS A2 TRIP RELAY CKT
57 GEN. GROUP-2 CLASS B TRIP RELAY CKT
58 GEN. GROUP-2 CLASS C TRIP RELAY CKT
59 GEN. GROUP-2 CLASS C TRIP RELAY CKT
60 GT DIFF. PROTN. AC CIRCUIT
61 GT DIFF. PROTN. AC CIRCUIT
62 GT DIFF. PROTN. B/I CIRCUIT
63 GT DIFF. PROTN. B/I CIRCUIT
64 GT DIFF. PROTN. B/I CIRCUIT
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REV-0
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REV-1 REV-2 DRAWING DESCRIPTIONSHEET REV-0
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REV-1 REV-2
36 GEN. PROTN. RELAY (GR-1) B/O CKT √
47A GEN. GROUP-1 CLASS-A2 TRIP RELAY CKT √
54A GEN. GROUP-2 CLASS-A2 TRIP RELAY CKT √
26A DC SUPPLY DISTRIBUTION CIRCUIT √
01A LIST OF DRAWINGS √
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13A DIGITAL INPUTS TO RTU √
NOTE:-
TB NOS & WIRE NOS MAY CHANGE DURING MANUFACTURING
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REV-3 REV-3
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REV-4 REV-4
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DRAWING DESCRIPTION DRAWING DESCRIPTION
72 RTU DC DISTRIBUTION CIRCUIT
73 RTU ANALOG INPUT CARD-1 (4-20mA) CIRCUIT
74 RTU ANALOG INPUT CARD-2 (4-20mA) CIRCUIT
75 RTU ANALOG INPUT CARD-3 (4-20mA) CIRCUIT
76 RTU ANALOG INPUT CARD-4 (4-20mA) CIRCUIT
77 UT-A DIFF. PROTN. AC CIRCUIT
78 UT-A DIFF. PROTN. AC CIRCUIT
79 UT-A DIFF. PROTN. B/I CIRCUIT
80 UT-A DIFF. PROTN. B/I CIRCUIT
81 UT-A DIFF. PROTN. B/I CIRCUIT
82 UT-A DIFF. PROTN. B/O CIRCUIT
83 UT-A DIFF. PROTN. B/O CIRCUIT
84 UT-A HV SIDE O/C PROTN. AC CIRCUIT
85 UT-A HV O/C PROTN. B/I & B/O CIRCUIT
86 UNIT-10A SWGR-A LV REF PROTN. AC CIRCUIT
87 UNIT-10A SWGR-A LV REF. PROTN. B/I & B/O CIRCUIT
88 UNIT-10A SWGR-B LV REF PROTN. AC CIRCUIT
89 UNIT-10A SWGR-B REF. LV PROTN. B/I & B/O CIRCUIT
90 UNIT-10A GROUP-1 TRIP RELAY CKT
91 UNIT-10A GROUP-2 TRIP RELAY CKT
92 BLANK SHEET
93 UT-B DIFF. PROTN. AC CIRCUIT
94 UT-B DIFF. PROTN. AC CIRCUIT
95 UT-B DIFF. PROTN. B/I CIRCUIT
96 UT-B DIFF. PROTN. B/I CIRCUIT
97 UT-B DIFF. PROTN. B/I CIRCUIT
98 UT-A DIFF. PROTN. B/O CIRCUIT
99 UT-A DIFF. PROTN. B/O CIRCUIT
100 UT-B HV SIDE O/C PROTN. AC CIRCUIT
101 UT-B HV O/C PROTN. B/I & B/O CIRCUIT
102 UNIT-10B SWGR-A LV REF PROTN. AC CIRCUIT
103 UNIT-10B SWGR-A LV REF. PROTN. B/I & B/O CIRCUIT
104 UNIT-10B SWGR-B LV REF PROTN. AC CIRCUIT
105 UNIT-10B SWGR-B LV REF. PROTN. B/I & B/O CIRCUIT
106 UNIT-10B GROUP-1 TRIP RELAY CKT
107 UNIT-10B GROUP-2 TRIP RELAY CKT
108 ST DIFF. PROTN. AC CIRCUIT
109 ST DIFF. PROTN. AC CIRCUIT
110 ST DIFF. PROTN. B/I CIRCUIT
111 ST DIFF. PROTN. B/I CIRCUIT
112 ST-1 DIFF. PROTN. B/I CIRCUIT
113 ST DIFF. PROTN. B/O CIRCUIT
114 ST DIFF. PROTN. B/O CIRCUIT
115 ST HV SIDE O/C PROTN. AC CIRCUIT
116 ST HV O/C PROTN. B/I & B/O CIRCUIT
117 ST SWGR-A LV REF PROTN. AC CIRCUIT
118 ST SWGR-A LV REF. PROTN. B/I & B/O CIRCUIT
119 ST SWGR-B LV REF PROTN. AC CIRCUIT
SHEET SHEET
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REV-0
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REV-1 REV-2
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REV-0
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REV-1 REV-2
65 GT DIFF. PROTN. B/O CIRCUIT
66 GT DIFF. PROTN. B/O CIRCUIT
67 GT STAND BY E/F PROTN. AC CIRCUIT
68 GT STANDBY E/F PROTN B/I & B/O CIRCUIT
69 GCB CLOSING & TRIP COIL-1 CIRCUIT
70 ISOLATOR CONTACT MULTI. CIRCUIT
71 BREAKER CONTACT MULTI. CIRCUIT
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√69A TRIP COIL-2 CIRCUIT
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76A RTU ANALOG INPUT CARD-5 (4-20mA) CIRCUIT
76B RTU ANALOG INPUT CARD-6 (4-20mA) CIRCUIT
76C RTU DIGTAL INPUT CARD-1 CIRCUIT
76D RTU DIGTAL INPUT CARD-2 CIRCUIT
76E RTU DIGTAL INPUT CARD-3 CIRCUIT
76F RTU DIGTAL INPUT CARD-4 CIRCUIT
76G RTU DIGTAL INPUT CARD-5 CIRCUIT
76H RTU DIGTAL INPUT CARD-6 CIRCUIT
76J RTU DIGTAL INPUT CARD-7 CIRCUIT
76K RTU DIGTAL INPUT CARD-8 CIRCUIT
76L RTU DIGTAL INPUT CARD-9 CIRCUIT
76M RTU DIGTAL INPUT CARD-10 CIRCUIT
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√76N RTU DIGTAL INPUT CARD-11 CIRCUIT
76P RTU DIGTAL INPUT CARD-12 CIRCUIT
REV-3 REV-3
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REV-4REV-4
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DRAWING DESCRIPTION
120 ST SWGR-B LV REF. PROTN. B/I & B/O CIRCUIT
125 400KV MAIN CB & TIE CB LBB & CLOSING INTERLOCK CIRCUIT
121 ST GROUP-1 TRIP RELAY CKT
122 ST GROUP-2 TRIP RELAY CKT
123 BLANK SHEET
124 400KV MAIN CB & TIE CB TRIPPING CKT
126 STEAM TURBINE INTERLOCK CIRCUIT
127 FIELD EXCITATION INTERLOCK CIRCUIT
128 UNIT-10A SWGR. INTERLOCK CIRCUIT
129 UNIT-10 SWGR. INTERLOCK CIRCUIT
130 ST-1 SWGR INTERLOCK CIRCUIT
131 BLOCK CONTACT DISTRIBUTION
132 BLOCK CONTACT DISTRIBUTION
133 BLOCK CONTACT DISTRIBUTION
134 SWITCH CONTACT DISTRIBUTION
135 DCS CIRCUIT
SHEET REV-0 REV-1 REV-2
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√136 STAND ALONE DISTURBANCE RECORDER √137 COMMUNICATION DIAGRAM √ √
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REV-3
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REV-4
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AREVA1. 26KV BREKAER
LIST OF REFERENCE DRAWINGS/DOCUMENTS
DRAWING REF.
TCE.5146A-739-AU-3001 - SHEET 1 & 2MAIN ONE LINE DIAGRAM
DESCRIPTION
2. 26KV ISOLATOR
TCE
MAKE
2. 26KV CVT
310MVA ,400KV/26KV GENERATOR
63/31.5/31.5 MVA,,26/11.5/11.5KVUNIT TRANSFORMER
63/31.5/31.5MVA,26/11.5/11.5KV
NEUTRAL GROUNDING TRANSFORMER
DCDB DRAWING
ACDB DRAWING
STATION TRANSFORMER
960MVA,26KV GENERATOR
TRANSFORMER
34566250672 - COOLER CONTROL GEAR BHEL,JHANSI
INDIVIDUAL KIOSK-34526200113
COMMON KIOSK-34526200112BHEL
CONTROL ROOM LAYOUT TCE.5146A-580-GA-1701A TCE
TOSHIBA
GCB ENCLOSURE
VS121888AEDD01D
LEGEND
DESCRIPTOIN
CT TERMINATIONS
BAY MARSHALLING BOX TERMINATIONS
ISOLATOR TERMINATIONS
PT TERMINATIONS
CB TERMINATIONS
SYMBOLS
RELAY PANEL TERMINAL BLOCK
OTHER SUPPLIER'S PANEL TB
DISCONNECTING TERMINAL BLOCK
TO EXCITER, AVR, TURBINE CIRCUITS
X51A
X11A
X13A
TERMINAL
SPARE
PT CIRCUIT
CT CIRCUIT
DESCRIPTOIN-10CHA00GH001
X43A
X41A TO SRP
X91A TO ALARM
DESCRIPTOIN-10CHA00GH002 DESCRIPTOIN-10CHA00GH003
DESCRIPTOIN-10CHA00GH004
WIRE CROSS REFERENCE STANDARDS
K101 FERRULE NUMBER
12 SHEET NUMBER
W951-03 DRAWING NO. WITH SHEET NO.
DESCRIPTOINREPRESENTATION
X61 TO ACDB
X62 TO DCDB-1
X63 TO DCDB-2
STRIPTERMINAL
STRIP
TERMINALSTRIP
TERMINALSTRIP
X2A TO BREAKER (GCB)
X3A TO ISOLATOR
X42A TO GT, UT, ST
TO EXCITER, AVR, TURBINE CIRCUITS
X51B
X11B
X13B
SPARE
PT CIRCUIT
CT CIRCUIT
X43B
X41B TO SRP
X91B TO ALARM
X61 TO ACDB
X62 TO DCDB-1
X63 TO DCDB-2
X2B TO BREAKER (GCB)
X3B TO ISOLATOR
X42B TO GT, UT, ST
TO EXCITER, AVR, TURBINE CIRCUITS
X51C
X44C
X11C
X13C
SPARE
TO RTU
PT CIRCUIT
CT CIRCUIT
X43C
X41C TO SRP
X2C TO BREAKER (GCB)
X3C TO ISOLATOR
X42C TO GT, UT, ST
TO EXCITER, AVR, TURBINE CIRCUITS
X51DA
X11DA
X13DA
SPARE
PT CIRCUIT
CT CIRCUIT
X43DA
X41DA TO SRP
X2DA TO BREAKER (GCB)
X3DA TO ISOLATOR
X42DA TO GT, UT, ST
DESCRIPTOIN-10CHA00GH005TERMINAL
STRIP
TO EXCITER, AVR, TURBINE CIRCUITS
X51E
X11E
X13E
SPARE
PT CIRCUIT
CT CIRCUIT
X43E
X41E TO SRP
X2E TO BREAKER (GCB)
X3E TO ISOLATOR
X42E TO GT, UT, ST
TO 11kV UNIT-10A SWGR-A,BX45A
X79 AC SUPPLY BUS WIRE
X71
X77 DC SUPPLY BUS WIRE
DIODE TERRMINAL BLOCKX50A DIODE TERRMINAL BLOCKX50B
X79 AC SUPPLY BUS WIRE
X71
X77 DC SUPPLY BUS WIRE
X79 AC SUPPLY BUS WIRE
X71
X77 DC SUPPLY BUS WIRE
X79 AC SUPPLY BUS WIRE
X71
X77 DC SUPPLY BUS WIRE
X79 AC SUPPLY BUS WIRE
X71
X77 DC SUPPLY BUS WIRE
TO 11kV UNIT-10B SWGR-A,BX46A
TO 11kV STATION SWGR-A,BX47A
TO 11kV UNIT-10A SWGR-A,BX45A
TO 11kV UNIT-10B SWGR-A,BX46A
TO 11kV STATION SWGR-A,BX47A
TRIP BUS WIRE NUMBER
CLASS-A1
CLASS-A2
CLASS-B
CLASS-C
CLASS-D-UT10A
GROUP-1 GROUP-2
K103
K303
K503
K703
K903
CLASS-D-UT10B K1103
CLASS-D-ST K1303
K203
K403
K603
K803
K1003
K1203
K1403
X81C GCP CIRCUIT
X82C GCP CIRCUIT
TO EXCITER, AVR, TURBINE CIRCUITS
X51DB
X11DB
X13DB
SPARE
PT CIRCUIT
CT CIRCUIT
X43DB
X41DB TO SRP
X2DB TO BREAKER (GCB)
X3DB TO ISOLATOR
X42DB TO GT, UT, ST
X83D TO DCS
X84D TO DISTURBANCE RECORDER
186A1
186A2
186B
186C
186D-UT1A
186D-UT1B
186D-ST
GC
B 5
0L
BB
,GR
-1
GT
HV
MA
IN C
B, 50LB
B
GT
HV
MID
DLE
CB
, 50
LB
B
GC
B T
RIP
CO
IL-1
GC
B T
RIP
CO
IL-2
GT
HV
MA
IN C
B,
TR
IP C
OIL
-1
GT
HV
MA
IN C
B,
TR
IP C
OIL
-2
11K
V U
NIT
-A,
SW
ITC
HG
EA
R-A
IN
CO
ME
R T
RIP
CO
IL
GT
HV
MID
DL
E C
B,
TR
IP C
OIL
-1
GT
HV
MID
DL
E C
B,
TR
IP C
OIL
-2
11K
V U
NIT
-A,
SW
ITC
HG
EA
R-B
IN
CO
ME
R T
RIP
CO
IL
11K
V U
NIT
-B,
SW
ITC
HG
EA
R-A
IN
CO
ME
R T
RIP
CO
IL
11K
V U
NIT
-B,
SW
ITC
HG
EA
R-B
IN
CO
ME
R T
RIP
CO
IL
11K
V S
TA
TIO
N,
SW
ITC
HG
EA
R-A
IN
CO
ME
R T
RIP
CO
IL
11K
V S
TA
TIO
N,
SW
ITC
HG
EA
R-B
IN
CO
ME
R T
RIP
CO
IL
FIE
LD
CB
TR
IP C
OIL
TU
RB
INE
TR
IP C
HA
NN
EL-1
TU
RB
INE
TR
IP C
HA
NN
EL-2
11K
V U
NIT
-A,
SW
ITC
HG
EA
R-A
IN
CO
ME
R L
BB
11K
V U
NIT
-A,S
WIT
CH
GE
AR
-B I
NC
OM
ER
LB
B
11K
V U
NIT
-B,S
WIT
CH
GE
AR
-A I
NC
OM
ER
LB
B
11K
V U
NIT
-B,S
WIT
CH
GE
AR
-B I
NC
OM
ER
LB
B
11K
V S
TA
TIO
N,,
SW
ITC
HG
EA
R-A
IN
CO
ME
R L
BB
11K
V S
TA
TIO
N ,
SW
ITC
HG
EA
R-B
IN
CO
ME
R L
BB
WIP
EO
UT
TIM
ER
2/2
86A
1
WIP
EO
UT
TIM
ER
2/2
86A
2
WIP
EO
UT
TIM
ER
2/2
86B
WIP
EO
UT
TIM
ER
2/2
86C
GROUP-1
PROTECTIONS
X
X X X
X X
X X
X X X X X X X X X X
X X X X
X X
X X
X X
X X X
X X X X X X X X X X
X
X X
X
X
XX
XX
XX
XX
LEGEND OF TRIP RELAYS - GROUP-1
186A1 GROUP-1 CLASS A1 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS
186A2 GROUP-1 CLASS A2 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS IN GT,UT & ST
186B GROUP-1 CLASS B MASTER TRIP RELAY FOR NON CRITICAL GENERATOR FAULTS
186C GROUP-1 CLASS C MASTER TRIP RELAY FOR FAULTS EXTERNAL TO THE PLANT
186D-UT GROUP-1 UT CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF UT
186D-ST GROUP-1 ST CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF ST
286A1 GROUP-2 CLASS A1 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS
286A2 GROUP-2 CLASS A2 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS IN GT,UT & ST
286B GROUP-2 CLASS B MASTER TRIP RELAY FOR NON CRITICAL GENERATOR FAULTS
286C GROUP-2 CLASS C MASTER TRIP RELAY FOR FAULTS EXTERNAL TO THE PLANT
286D-UT GROUP-2 UT CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF UT
286D-ST GROUP-2 ST CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF ST
LEGEND OF TRIP RELAYS - GROUP-2
PROTECTION TRIP LOGIC - GROUP-1
SITE1
GENERATOR DIFFERENTIAL PROTECTION(87G)
GENERATOR UNDER IMPEDANCE (21G),TIMER STAGE -1
GENERATOR UNDER FREQUENCY STAGE-1 (81UF)
GENERATOR UNDER FREQUENCY STAGE-2 (81UF) TIME STAGE-1
GENERATOR OVER FREQUENCY (81OF)
GENERATOR UNDER IMPEDANCE (21G),TIMER STAGE -2
GENERATOR UNDER FREQUENCY STAGE-2 (81UF) TIME STAGE-2
REVERSE POWER RELAY(32G) + TIMER STAGE -2
GENERATOR UNDER VOLTAGE (27G)
GENERATOR OVER VOLTAGE STAGE-1 (59G)
GENERATOR OVER VOLATGE STAGE-2 (59G)
GENERATOR OVER EXCITATION STAGE-1 (99G)
GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB CLOSED
GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB OPEN
GENERATOR POLE SLIPPING (78G)
GENERATOR LOSS OF EXCITATION (40G)
GENERATOR LOSS OF EXCITATION WITH UNDER VOLTAGE(27/40G)
GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-1
GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-2, TIMER STAGE-1
GROUP-1 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
GROUP-1 PROTECTIONS
1
SL. NO. 186A1 186A2 186B 186C 186D-UT1A186D-UT1B 186D-ST 286A2 ALARM
GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-2, TIMER STAGE-2
GENERATOR STATOR OVER LOAD (50GS)
GENERATOR STATOR EARTH FAULT 95% (64G3)
GENERATOR STATOR EARTH FAULT 100% (64G1)
GENERATOR ROTOR EARTH FAULT (64F2) - STAGE-1
GCB LOCAL BREAKER BACKUP (50LBB)
DEAD MACHINE PROTECTION (61B)
VOLATGE BALANCE PROTECTION (60G11)
VOLATGE BALANCE PROTECTION (60G12)
VOLATGE BALANCE PROTECTION (60G13)
X
X
X
X
X
X
X
X
X
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
17
18
19
20
21
22
23
24
25
26
28
29
29
30
31
X
XX
X
XX
X
X
X
X
XX
X
XX
X
X
X
X
X
X
X
RELAY TYPE
I. GENERATOR PROTECTION
RELAY REF.
7UM62 GR1
MVAPM32 60G11
MVAPM32 60G12
MVAPM32 60G13
X
X
GENERATOR ROTOR EARTH FAULT (64F2) - STAGE-227
GENERATOR ROTOR EARTH FAULT (64F1)
30
TOSHIBA TOSHIBA X
SITE1EXCITATION TRANSFORMER VERY HIGH X
32
SITE1
SITE1
GT STANDBY EARTH FAULT (51NGT) WITHOUT TIMER
GT STANDBY EARTH FAULT WITH TIMER
GT PRESSURE RELIEF VALVE-A OPTD.
GT OIL TEMPERATURE TRIP
GT BUCHHOLZ TRIP (63T)
GT FIRE PROTECTION TRIP (63FT)
GROUP-1 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
GROUP-1 PROTECTIONS
1
SL. NO. 186A1 186A2 186B 186C 186D-UT1A186D-UT1B 186D-ST 286A2 ALARM
X
X
X
X
2
3
4
5
6
RELAY TYPE
X
II. GENERATOR TRANSFORMER PROTECTION
RELAY REF.
7SJ80 51NGT
BI OF 7UT633
X
III. UNIT TRANSFORMER-10A PROTECTIONS
UT INSTANTANEOUS OVER CURRENT (50UT)
UT HV SIDE IDMT OVER CURRENT (51UT)
UT LV SIDE IDMT EARTH FAULT (51NUT-LV1 & LV2)
UT BUCHHOLZ TRIP (63T)
UT OIL TEMPERATURE TRIP (49OT)
1
2
3
4
5
6
7
8
X
X
X
X
X
7SJ80 50-UT10A
BI OF 7UT633 87/51-UT10AUT OIL TEMPERATURE ALARM (OTA)
UT BUCHHOLZ ALARM(63A)
UT PUMP OIL FLOW LOW ALARM GROUP-1
X
X
X
IV. UNIT TRANSFORMER-10B PROTECTIONS
UT INSTANTANEOUS OVER CURRENT (50UT)
UT HV SIDE IDMT OVER CURRENT (51UT)
UT LV SIDE IDMT EARTH FAULT (51NUT-LV1 & LV2)
UT BUCHHOLZ TRIP (63T)
UT OIL TEMPERATURE TRIP (49OT)
1
2
3
4
5
6
7
8
X
X
X
X
X
7SJ80 50-UT10B
BI OF 7UT633 87/51-UT10BUT OIL TEMPERATURE ALARM (OTA)
UT BUCHHOLZ ALARM(63A)
UT PUMP OIL FLOW LOW ALARM GROUP-1
X
X
X
SITE1
SITE1
V. STATION TRANSFORMER PROTECTIONS
ST INSTANTANEOUS OVER CURRENT (50ST)
ST HV SIDE IDMT OVER CURRENT (51ST)
ST LV SIDE IDMT EARTH FAULT (51NST-LV1 & LV2)
ST BUCHHOLZ TRIP (63T)
ST OIL TEMPERATURE TRIP (49OT)
1
2
3
4
5
6
7
8
X
X
X
X
X
7SJ80 50-ST1
BI OF 7UT633 87/51-ST1ST OIL TEMPERATURE ALARM (OTA)
ST BUCHHOLZ ALARM(63A)
ST PUMP OIL FLOW LOW ALARM GROUP-1
X
X
X
GROUP-1 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
EXCITATION SYSTEM FAULTS - NON CRITICAL
EXCITATION SYSTEM FAULTS - CRITICAL
OVERALL DIFFERENTIAL (87OA)
11KV UNIT A, SWITCHGEAR-A INCOMER LBB
11KV UNIT A, SWITCHGEAR-B INCOMER LBB
11KV UNIT B, SWITCHGEAR-A INCOMER LBB
11KV UNIT B, SWITCHGEAR-B INCOMER LBB
11KV STATION, SWITCHGEAR-A INCOMER LBB
VI. AVR
1
11KV STATION, SWITCHGEAR-B INCOMER LBB
2
1
2
3
4
5
6
7
8
9
11
12
13
X
X
GT HV MAIN CB LBB
GT HV MIDDLE CB LBB
WIPE OUT TIMER 2/186A2
WIPE OUT TIMER 2/186B
WIPE OUT TIMER 2/186C
VII. OVERALL PROTECTIONS
X
X
X
X
X
X
X
X
X
10 WIPE OUT TIMER 2/186A1 X
X
X
X
AVR -
FROM SRP 87OA
- -
AVR -
UNIT-A -
FROM SRP
FROM SRP
SWITCHGEAR-A
UNIT-ASWITCHGEAR-B
UNIT-BSWITCHGEAR-A
UNIT-BSWITCHGEAR-B
-
-
-
-STATIONSWITCHGEAR-A
-STATIONSWITCHGEAR-B
-
-
286A1
286A2
286B
286C
286D-UT1A
286D-UT1B
286D-ST
GC
B 5
0L
BB
,GR
-2
GT
HV
MA
IN C
B, 50LB
B
GT
HV
MID
DLE
CB
, 50
LB
B
GC
B T
RIP
CO
IL-1
GC
B T
RIP
CO
IL-2
GT
HV
MA
IN C
B,
TR
IP C
OIL
-1
GT
HV
MA
IN C
B,
TR
IP C
OIL
-2
11K
V U
NIT
-A,
SW
ITC
HG
EA
R-A
IN
CO
ME
R T
RIP
CO
IL
GT
HV
MID
DL
E C
B,
TR
IP C
OIL
-1
GT
HV
MID
DL
E C
B,
TR
IP C
OIL
-2
11K
V U
NIT
-A,
SW
ITC
HG
EA
R-B
IN
CO
ME
R T
RIP
CO
IL
11K
V U
NIT
-B,
SW
ITC
HG
EA
R-A
IN
CO
ME
R T
RIP
CO
IL
11K
V U
NIT
-B,
SW
ITC
HG
EA
R-B
IN
CO
ME
R T
RIP
CO
IL
11K
V S
TA
TIO
N,
SW
ITC
HG
EA
R-A
IN
CO
ME
R T
RIP
CO
IL
11K
V S
TA
TIO
N,
SW
ITC
HG
EA
R-B
IN
CO
ME
R T
RIP
CO
IL
FIE
LD
CB
TR
IP C
OIL
TU
RB
INE
TR
IP C
HA
NN
EL-1
TU
RB
INE
TR
IP C
HA
NN
EL-2
11K
V U
NIT
-A,
SW
ITC
HG
EA
R-A
IN
CO
ME
R L
BB
11K
V U
NIT
-A,S
WIT
CH
GE
AR
-B I
NC
OM
ER
LB
B
11K
V U
NIT
-B,S
WIT
CH
GE
AR
-A I
NC
OM
ER
LB
B
11K
V U
NIT
-B,S
WIT
CH
GE
AR
-B I
NC
OM
ER
LB
B
11K
V S
TA
TIO
N,,
SW
ITC
HG
EA
R-A
IN
CO
ME
R L
BB
11K
V S
TA
TIO
N ,
SW
ITC
HG
EA
R-B
IN
CO
ME
R L
BB
WIP
EO
UT
TIM
ER
2/2
86A
1
WIP
EO
UT
TIM
ER
2/1
86A
2
WIP
EO
UT
TIM
ER
2/1
86B
WIP
EO
UT
TIM
ER
2/1
86C
GROUP-2
PROTECTIONS
X
X X X
X X
X X
X X X X X X X X X X
X X X X
X X
X X
X X
X X X
X X X X X X X X X X
X
X X
X
X
XX
XX
XX
XX
LEGEND OF TRIP RELAYS - GROUP-1
186A1 GROUP-1 CLASS A1 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS
186A2 GROUP-1 CLASS A2 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS IN GT,UT & ST
186B GROUP-1 CLASS B MASTER TRIP RELAY FOR NON CRITICAL GENERATOR FAULTS
186C GROUP-1 CLASS C MASTER TRIP RELAY FOR FAULLTS EXTERNAL TO THE PLANT
186D-UT GROUP-1 UT CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF UT
186D-ST GROUP-1 ST CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF ST
286A1 GROUP-2 CLASS A1 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS
286A2 GROUP-2 CLASS A2 MASTER TRIP RELAY FOR CRITICAL GENERATOR FAULTS IN GT,UT & ST
286B GROUP-2 CLASS B MASTER TRIP RELAY FOR NON CRITICAL GENERATOR FAULTS
286C GROUP-2 CLASS C MASTER TRIP RELAY FOR FAULLTS EXTERNAL TO THE PLANT
286D-UT GROUP-2 UT CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF UT
286D-ST GROUP-2 ST CLASS D MASTER TRIP RELAY FOR THERMAL OVER LOAD PROTECTIONS OF ST
LEGEND OF TRIP RELAYS - GROUP-2
PROTECTION TRIP LOGIC - GROUP-2
GENERATOR DIFFERENTIAL PROTECTION(87G)
GENERATOR UNDER IMPEDANCE (21G),TIMER STAGE -1
GENERATOR UNDER FREQUENCY STAGE-1 (81UF)
GENERATOR UNDER FREQUENCY STAGE-2 (81UF) TIME STAGE-1
GENERATOR OVER FREQUENCY (81OF)
GENERATOR UNDER IMPEDANCE (21G),TIMER STAGE -2
GENERATOR UNDER FREQUENCY STAGE-2 (81UF) TIME STAGE-2
REVERSE POWER RELAY(32G)+TURBINE TRIP RELAY OPERATED/ TIME STAGE-1 +TURBINE TRIP CH- 1/2
REVERSE POWER RELAY(32G) + TIME STAGE -2
LOW POWER RELAY(37G)+TURBINE TRIP RELAY OPERATED/ TIMER + TURBINE TRIP CH- 1/2
GENERATOR UNDER VOLTAGE (27G)
GENERATOR OVER VOLTAGE STAGE-1 (59G)
GENERATOR OVER VOLATGE STAGE-2 (59G)
GENERATOR OVER EXCITATION STAGE-1 (24G)
GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB CLOSED
GENERATOR OVER EXCITATION STAGE-2 (24G) WITH GCB OPEN
GENERATOR POLE SLIPPING (78G)
GENERATOR LOSS OF EXCITATION (40G)
GENERATOR LOSS OF EXCITATION WITH UNDER VOLTAGE(27/40G)
GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-1
GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-2, TIMER STAGE-1
GROUP-2 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
GROUP-2 PROTECTIONS
1
SL. NO. 286A1 286A2 286B 286C 286D-UT1A286D-UT1B 286D-ST 186A2 ALARM
GENERATOR NEGATIVE PHASE SEQUENCE(46) STAGE-2, TIMER STAGE-2
GENERATOR STATOR OVER LOAD (50GS)
GENERATOR STATOR EARTH FAULT 95% (64G3)
GCB LOCAL BREAKER BACKUP (50LBB)
DEAD MACHINE PROTECTION (61B)
VOLATGE BALANCE PROTECTION (60G21)
VOLATGE BALANCE PROTECTION (60G22)
VOLATGE BALANCE PROTECTION (60G23)
X
X
X
X
X
X
X
X
X
2
3
4
5
6
7
8
9
10
12
11
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
RELAY TYPE
I. GENERATOR PROTECTION
RELAY REF.
7UM62 GR2
MVAPM32 60G21
MVAPM32 60G22
MVAPM32 60G23
X
GENERATOR OPEN DELTA EARTH FAULT PROTECTION (59N)30 X7SJ62 59N
GENERATOR ROTOR EARTH FAULT (64F2) STAGE-126
X
X
GENERATOR ROTOR EARTH FAULT (64F2) STAGE-227
GENERATOR ROTOR EARTH FAULT (64F1)27 TOSHIBA TOSHIBA XSITE1
SITE1
SITE1
GT OVERHEAD LINE DIFFERENTIAL PROTECTION (87OH)
GT SUDDEN PRESSURE RELAY TRIP
GT DIFFERENTIAL (87GT)
GT OVER FLUXING PROTECTION (99GT) STAGE-1
GT PRESSURE RELIEF VALVE-B TRIP
GT RESTRICTED EARTH FAULT (64GT)
GT OVER FLUXING PROTECTION (99GT) STAGE-2
III. UNIT TRANSFORMER-10A PROTECTIONS
GROUP-2 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
GROUP-2 PROTECTIONS
1
SL. NO. 286A1 286A2 286B 286C 286D-UT1A286D-UT1B 286D-ST 186A2 ALARM
X
X
X
X
X
2
3
4
5
6
9
10 GT OLTC OIL SURGE TRIP
RELAY TYPE
X
II. GENERATOR TRANSFORMER PROTECTION
RELAY REF.
7UT633
FROM SRP 87OH
X
BI OF 59N
X
UT DIFFERENTIAL PROTECTION (87UT)
UT RESTRICTED EARTH FAULT (64UT) - LV1 & LV2
UT FIRE PROTECTION TRIP (63FT)
UT PRESSURE RELIEF DEVICE TRIP (63PRD)
UT LV1 WINDING TEMPERATURE TRIP (49WT)
1
2
3
4
5
6
X
X
X
X
7UT633 87/51-UT10A
BI OF 7UT633 87/51-UT10A
X
7SJ80 64-1-UT10A64-2-UT10A
UT HV WINDING TEMPERATURE TRIP (49WT) X
UT LV2 WINDING TEMPERATURE TRIP (49WT)7 X
UT OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP8 X
UT HV WINDING TERMPERATURE ALARM9
UT LV1 WINDING TERMPERATURE ALARM10
UT LV2 WINDING TERMPERATURE ALARM11
PUMP OIL FLOW LOW GROUP-2 ALARM12
X
X
X
X
GT HV WINDING TEMPERATURE TRIP
GT LV WINDING TEMPERATURE TRIP
7
8
X
X
SITE1
IV. UNIT TRANSFORMER-10B PROTECTIONS
GROUP-2 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
GROUP-2 PROTECTIONSSL. NO. 286A1 286A2 286B 286C 286D-UT1A286D-UT1B 286D-ST 186A2 ALARMRELAY TYPE RELAY REF.
UT DIFFERENTIAL PROTECTION (87UT)
UT RESTRICTED EARTH FAULT (64UT) - LV1 & LV2
UT FIRE PROTECTION TRIP (63FT)
UT PRESSURE RELIEF DEVICE TRIP (63PRD)
UT LV1 WINDING TEMPERATURE TRIP (49WT)
1
2
3
4
5
6
X
X
X
X
7UT633 87/51-UT10B
BI OF 7UT633 87/51-UT10B
X
7SJ80 64-1-UT10B64-2-UT10B
UT HV WINDING TEMPERATURE TRIP (49WT) X
UT LV2 WINDING TEMPERATURE TRIP (49WT)7 X
UT OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP8 X
UT HV WINDING TERMPERATURE ALARM9
UT LV1 WINDING TERMPERATURE ALARM10
UT LV2 WINDING TERMPERATURE ALARM11
PUMP OIL FLOW LOW GROUP-2 ALARM12
X
X
X
X
V. STATION TRANDFORMER PROTECTIONS
ST DIFFERENTIAL PROTECTION (87ST)
ST RESTRICTED EARTH FAULT (64ST) - LV1 & LV2
ST FIRE PROTECTION TRIP (63FT)
ST PRESSURE RELIEF DEVICE TRIP (63PRD)
ST LV1 WINDING TEMPERATURE TRIP (49WT)
1
2
3
4
5
6
X
X
X
X
7UT633 87/51-ST1
BI OF 7UT633 87/51-ST1
X
7SJ80 64-1-ST164-2-ST1
ST HV WINDING TEMPERATURE TRIP (49WT) X
ST LV2 WINDING TEMPERATURE TRIP (49WT)7 X
ST OFF CIRCUIT TRIP SWITCH ABNORMAL POSITION TRIP8 X
ST HV WINDING TERMPERATURE ALARM9
ST LV1 WINDING TERMPERATURE ALARM10
ST LV2 WINDING TERMPERATURE ALARM11
PUMP OIL FLOW LOW GROUP-2 ALARM12
X
X
X
X
11KV UNIT A, SWITCHGEAR-A INCOMER LBB
11KV UNIT A, SWITCHGEAR-B INCOMER LBB
11KV UNIT B, SWITCHGEAR-A INCOMER LBB
11KV UNIT B, SWITCHGEAR-B INCOMER LBB
11KV STATION, SWITCHGEAR-A INCOMER LBB
GROUP-2 PROTECTION INITIATION OF MASTER TRIP RELAYS BY PROTECTIVE DEVICES
SL. NO. 286A1 286A2 286B 286C 286D-UT1A286D-UT1B 286D-ST 186A2 ALARM
11KV STATION, SWITCHGEAR-B INCOMER LBB
1
2
3
4
5
6
7
8
9
11
12
FROM
GT HV MAIN CB LBB
GT HV MIDDLE CB LBB
WIPE OUT TIMER 2/286A2
WIPE OUT TIMER 2/286B
WIPE OUT TIMER 2/286C
VI. OVERALL PROTECTIONS
X
X
X
X
X
X
X
X
10
WIPE OUT TIMER 2/286A1 X
X
X
X
GROUP-2 PROTECTIONS RELAY REF.
UNIT-A -
FROM SRP
FROM SRP
SWITCHGEAR-A
UNIT-ASWITCHGEAR-B
UNIT-BSWITCHGEAR-A
UNIT-BSWITCHGEAR-B
-
-
-
-STATIONSWITCHGEAR-A
-STATIONSWITCHGEAR-B
-
-
GT-1 HV R-Ph WINDING TEMPERATURE INDICATION
GT-1 LV R-Ph WINDING TEMPERATURE INDICATION
4-20mA INPUTS TO ANALOG CARD - AI1
PAGE
1
2
3
4
FUNCTIONS
GT-1 HV Y-Ph WINDING TEMPERATURE INDICATION
GT-1 LV Y-Ph WINDING TEMPERATURE INDICATION
73
GT-1 HV B-Ph WINDING TEMPERATURE INDICATION
GT-1 LV B-Ph WINDING TEMPERATURE INDICATION
4-20mA INPUTS TO ANALOG CARD - AI2
PAGE
1
2
3
4
FUNCTIONS
GT-1 B-Ph OIL TEMPERATURE INDICATION
UT-10A HV WINDING TERMPERATURE INDICATION
74
UT-10A LV1 WINDING TEMPERATURE INDICATION
UT-10A LV2 WINDING TEMPERATURE INDICATION
4-20mA INPUTS TO ANALOG CARD - AI3
PAGE
1
2
3
4
FUNCTIONS
UT-10A OIL TEMPERATURE INDICATION
UT-10B HV WINDING TERMPERATURE INDICATION
75
4-20mA INPUTS TO ANALOG CARD - AI4
PAGE
1
2
3
4
FUNCTIONS
76
4-20mA INPUTS TO ANALOG CARD - AI5
PAGE
1
2
3
4
FUNCTIONS
76A
GT-1 R-PH OLTC TAP POSITION
GT-1 Y-PH OLTC TAP POSITION
4-20mA INPUTS TO ANALOG CARD - AI6
PAGE
1
2
3
4
FUNCTIONS
GT-1 B-PH OLTC TAP POSITION
GT-1 Y-Ph OIL TEMPERATURE INDICATION
76B
UT-10B LV1 WINDING TEMPERATURE INDICATION
UT-10B LV2 WINDING TEMPERATURE INDICATION
UT-10B OIL TEMPERATURE INDICATION
ST-1 HV WINDING TERMPERATURE INDICATION
ST-1 LV1 WINDING TEMPERATURE INDICATION
ST-1 LV2 WINDING TEMPERATURE INDICATION
ST-1 OIL TEMPERATURE INDICATION
GT-1 R-Ph OIL TEMPERATURE INDICATION
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
UT-10A BANK-1 FANS ON
UT-10A BANK-2 FANS ON
UT-10A BANK-1 PUMPS ON
UT-10A BANK-2 PUMPS ON
UT-10A 415V AC SUPPLY-1 ON
INPUTS TO RTU DIGITAL CARD - DI1
INPUT
UT-10A 415V AC SUPPLY-2 ON
1
2
3
4
5
6
7
8
9
PAGE
UT-10A FAN CONTROL ON - MANUAL
UT-10A FAN CONTROL ON - AUTO
UT-10A PUMPS CONTROL ON -AUTO10
UT-10A PUMPS CONTROL ON -MANUAL
FUNCTIONS
76C
UT-10A BANK-1 FAN FAIL11
UT-10A BANK-2 FAN FAIL12
UT-10A BANK-1 PUMP FAIL13
UT-10A BANK-2 PUMP FAIL14
UT-10A COOLER POWER SUPPLY AUTO CHANGEOVER FAIL15
UT-10A CONTROL SUPPLY FAIL16
UT-10B BANK-1 FANS ON
UT-10B BANK-2 FANS ON
UT-10B BANK-1 PUMPS ON
UT-10B BANK-2 PUMPS ON
UT-10B 415V AC SUPPLY-1 ON
INPUTS TO RTU DIGITAL CARD - DI2
INPUT
UT-10B 415V AC SUPPLY-2 ON
1
2
3
4
5
6
7
8
9
PAGE
UT-10B FAN CONTROL ON - MANUAL
UT-10B FAN CONTROL ON - AUTO
UT-10B PUMPS CONTROL ON -AUTO10
UT-10B PUMPS CONTROL ON -MANUAL
FUNCTIONS
76D
UT-10B BANK-1 FAN FAIL11
UT-10B BANK-2 FAN FAIL12
UT-10B BANK-1 PUMP FAIL13
UT-10B BANK-2 PUMP FAIL14
UT-10B COOLER POWER SUPPLY AUTO CHANGEOVER FAIL15
UT-10B CONTROL SUPPLY FAIL16
GT-1 R-Ph NORMAL COOLER FAIL
GT-1 R-Ph STANDBY COOLER FAIL
GT-1 R-Ph COOLER CONTROL SUPPLY FAIL
GT-1 R-Ph OIL FLOW LOW COOLER-A
GT-1 R-Ph OIL FLOW LOW COOLER-B
INPUTS TO RTU DIGITAL CARD - DI3
INPUT
GT-1 R-Ph OIL FLOW LOW COOLER-C
1
2
3
4
5
6
7
8
9
PAGE
GT-1 R-Ph OIL FLOW LOW COOLER-D
GT-1 R-Ph OIL FLOW LOW COOLER-E
GT-1 R-Ph LOW OIL LEVEL ALARM10
GT-1 R-Ph OIL FLOW LOW COOLER-F
FUNCTIONS
76E
GT-1 R-Ph HV WTI ALARM11
GT-1 R-Ph LV WTI ALARM12
GT-1 R-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS13
GT-1 R-Ph OTI ALARM14
GT-1 R-Ph BUCHHOLZ ALARM15
SPARE16
GT-1 Y-Ph NORMAL COOLER FAIL
GT-1 Y-Ph STANDBY COOLER FAIL
GT-1 Y-Ph COOLER CONTROL SUPPLY FAIL
GT-1 Y-Ph OIL FLOW LOW COOLER-A
GT-1 Y-Ph OIL FLOW LOW COOLER-B
INPUTS TO RTU DIGITAL CARD - DI4
INPUT
GT-1 Y-Ph OIL FLOW LOW COOLER-C
1
2
3
4
5
6
7
8
9
PAGE
GT-1 Y-Ph OIL FLOW LOW COOLER-D
GT-1 Y-Ph OIL FLOW LOW COOLER-E
GT-1 Y-Ph LOW OIL LEVEL ALARM10
GT-1 Y-Ph OIL FLOW LOW COOLER-F
FUNCTIONS
76F
GT-1 Y-Ph HV WTI ALARM11
GT-1 Y-Ph LV WTI ALARM12
GT-1 Y-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS13
GT-1 Y-Ph OTI ALARM14
GT-1 Y-Ph BUCHHOLZ ALARM15
SPARE16
GT-1 B-Ph NORMAL COOLER FAIL
GT-1 B-Ph STANDBY COOLER FAIL
GT-1 B-Ph COOLER CONTROL SUPPLY FAIL
GT-1 B-Ph OIL FLOW LOW COOLER-A
GT-1 B-Ph OIL FLOW LOW COOLER-B
INPUTS TO RTU DIGITAL CARD - DI5
INPUT
GT-1 B-Ph OIL FLOW LOW COOLER-C
1
2
3
4
5
6
7
8
9
PAGE
GT-1 B-Ph OIL FLOW LOW COOLER-D
GT-1 B-Ph OIL FLOW LOW COOLER-E
GT-1 B-Ph LOW OIL LEVEL ALARM10
GT-1 B-Ph OIL FLOW LOW COOLER-F
FUNCTIONS
76G
GT-1 B-Ph HV WTI ALARM11
GT-1 B-Ph LV WTI ALARM12
GT-1 B-Ph HOTSPOT WDG. TEMP. ALARM THROUGH FOTS13
GT-1 B-Ph OTI ALARM14
GT-1 B-Ph BUCHHOLZ ALARM15
SPARE16
GT-1 R-Ph THERMAL OVERLOAD RELAY TRIP
GT-1 R-Ph COOLER DIRECT ON
GT-1 R-Ph COOLER COOLER ON THRO. WTI/FOTS/
GT-1 R-Ph COOLER FAIL
GT-1 R-Ph DRIVE MOTOR AUTO TRIP/TAP CHANGE DELAYED
INPUTS TO RTU DIGITAL CARD - DI6
INPUT
COMMON KIOSK COOLER SUPPLY-A FAIL
1
2
3
4
5
6
7
8
9
PAGE
COMMON KIOSK COOLER SUPPLY-B FAIL
COMMON KIOSK
10
FUNCTIONS
76H
11
12
13
14
15
SPARE16
GEN.FAS HV CB ON/FIELD CB ON/GCB ON
COOLER POWER SUPPLY AUTO CHANGEOVER FAIL
GT-1 Y-Ph THERMAL OVERLOAD RELAY TRIP
GT-1 Y-Ph COOLER DIRECT ON
GT-1 Y-Ph COOLER COOLER ON THRO. WTI/FOTS/
GT-1 Y-Ph COOLER FAIL
GT-1 Y-Ph DRIVE MOTOR AUTO TRIP/TAP CHANGE DELAYED
GEN.FAS HV CB ON/FIELD CB ON/GCB ON
COMMON KIOSK OUT OF STEP IN 3-1 PHASE TAP POSITION
COMMON KIOSK FOTS FAULTY
INPUTS TO RTU DIGITAL CARD - DI7
INPUT
1
2
3
4
5
6
7
8
9
PAGE
10
FUNCTIONS
76J
11
12
13
14
15
16
GT-1 R-Ph HYDRAN SYSTEM FAIL ALARM
SPARE
SPARE
GT-1 Y-Ph HYDRAN SYSTEM FAIL ALARM
SPARE
INPUTS TO RTU DIGITAL CARD - DI8
INPUT
GT-1 R-Ph TAP CHANGE SUPPLY FAIL
1
2
3
4
5
6
7
8
9
PAGE
GT-1 Y-Ph TAP CHANGE SUPPLY FAIL
GT-1 B-Ph TAP CHANGE SUPPLY FAIL
SPARE10
GT-1 B-Ph HYDRAN SYSTEM FAIL ALARM
FUNCTIONS
76K
SPARE11
GCB TC-1 UNHEALTHY12
GCB TC-2 UNHEALTHY13
GMP DC SUPPLY UNHEALTHY14
GRP DC-2 SUPPLY UNHEALTHY15
SPARE16
GEN. GROUP-1 CLASS-A1 TRIP RELAY UNHEALTHY
GEN. GROUP-1 CLASS-A2 TRIP RELAY UNHEALTHY
GEN. GROUP-1 CLASS-A2 TRIP RELAY UNHEALTHY
GEN. GROUP-1 CLASS-A2 TRIP RELAY UNHEALTHY
GEN. GROUP-1 CLASS-B TRIP RELAY UNHEALTHY
INPUTS TO RTU DIGITAL CARD - DI9
INPUT
GEN. GROUP-1 CLASS-C TRIP RELAY UNHEALTHY
1
2
3
4
5
6
7
8
9
PAGE
GEN. GROUP-1 CLASS-C TRIP RELAY UNHEALTHY
SPARE
10
FUNCTIONS
76L
11
12
13
14
15
SPARE16
INPUTS TO RTU DIGITAL CARD - DI10
INPUT
1
2
3
4
5
6
7
8
9
PAGE
10
FUNCTIONS
76M
11
12
13
14
15
16
FOR GT-1 R-Ph COOLER LOGIC - K42
FOR GT-1 R-Ph COOLER LOGIC - K1
FOR GT-1 R-Ph COOLER LOGIC - K2
FOR GT-1 R-Ph COOLER LOGIC - K3
FOR GT-1 R-Ph COOLER LOGIC - K4
INPUTS TO RTU DIGITAL CARD - DI11
INPUT
FOR GT-1 R-Ph COOLER LOGIC - K5
1
2
3
4
5
6
7
8
9
PAGE
FOR GT-1 R-Ph COOLER LOGIC - K6
10
FUNCTIONS
76N
11
12
13
14
15
16
INPUTS TO RTU DIGITAL CARD - DI12
INPUT
1
2
3
4
5
6
7
8
9
PAGE
10
FUNCTIONS
76P
11
12
13
14
15
SPARE16
VT-1 WDG-1 UNHEALTHY
VT-2 WDG-1 UNHEALTHY
VT-3 WDG-1 UNHEALTHY
VT-3 WDG-2 UNHEALTHY
SPARE
SPARE
GT-1 B-Ph THERMAL OVERLOAD RELAY TRIP
GT-1 B-Ph COOLER DIRECT ON
GT-1 B-Ph COOLER COOLER ON THRO. WTI/FOTS/
GT-1 B-Ph COOLER FAIL
GT-1 B-Ph DRIVE MOTOR AUTO TRIP/TAP CHANGE DELAYED
GEN.FAS HV CB ON/FIELD CB ON/GCB ON
SPARE
SPARE
GRP DC-1 SUPPLY MCB UNHEALTHY
UT-10A 415V AC SUPPLY-1 FAIL
UT-10A 415V AC SUPPLY-2 FAIL
ST-1 415V AC SUPPLY-1 FAIL
ST-1 415V AC SUPPLY-2 FAIL
UT-10B 415V AC SUPPLY-1 FAIL
UT-10B 415V AC SUPPLY-2 FAIL
SPARE
SPARE
GEN. GROUP-2 CLASS-A1 TRIP RELAY UNHEALTHY
GEN. GROUP-2 CLASS-A2 TRIP RELAY UNHEALTHY
GEN. GROUP-2 CLASS-A2 TRIP RELAY UNHEALTHY
GEN. GROUP-2 CLASS-A2 TRIP RELAY UNHEALTHY
GEN. GROUP-2 CLASS-B TRIP RELAY UNHEALTHY
GEN. GROUP-2 CLASS-C TRIP RELAY UNHEALTHY
GEN. GROUP-2 CLASS-C TRIP RELAY UNHEALTHY
ST-1 BANK-1 FANS ON
ST-1 BANK-2 FANS ON
ST-1 BANK-1 PUMPS ON
ST-1 BANK-2 PUMPS ON
ST-1 415V AC SUPPLY-1 ON
ST-1 415V AC SUPPLY-2 ON
ST-1 FAN CONTROL ON - MANUAL
ST-1 FAN CONTROL ON - AUTO
ST-1 PUMPS CONTROL ON -AUTO
ST-1 PUMPS CONTROL ON -MANUAL
ST-1 BANK-1 FAN FAIL
ST-1 BANK-2 FAN FAIL
ST-1 BANK-1 PUMP FAIL
ST-1 BANK-2 PUMP FAIL
ST-1 COOLER POWER SUPPLY AUTO CHANGEOVER FAIL
ST-1 CONTROL SUPPLY FAIL
SPARE
FOR GT-1 Y-Ph COOLER LOGIC - K42
FOR GT-1 Y-Ph COOLER LOGIC - K1
FOR GT-1 Y-Ph COOLER LOGIC - K2
FOR GT-1 Y-Ph COOLER LOGIC - K3
FOR GT-1 Y-Ph COOLER LOGIC - K4
FOR GT-1 Y-Ph COOLER LOGIC - K5
FOR GT-1 Y-Ph COOLER LOGIC - K6
SPARE
FOR GT-1 B-Ph COOLER LOGIC - K42
FOR GT-1 B-Ph COOLER LOGIC - K1
FOR GT-1 B-Ph COOLER LOGIC - K2
FOR GT-1 B-Ph COOLER LOGIC - K3
FOR GT-1 B-Ph COOLER LOGIC - K4
FOR GT-1 B-Ph COOLER LOGIC - K5
FOR GT-1 B-Ph COOLER LOGIC - K6
SPARE
VT-2 WDG-2 UNHEALTHY
25
00A
25
00A
25
00A
2500A
BUS-1
BPT2
2500A
BUS-2
2500A
P2
CORE-4
CORE-3
CORE-2
CORE-1
P1
2500A
2500A
400 KV, 3PH, 2000A, 40KA, FOR 1 SEC
CO
RE
-1
CO
RE
-2
CO
RE
-3
CO
RE
-4
P1 P2
GENERATOR TRANSFORMER-1310MVA,420KV / 26kV
BPT1
P1 P2
GENERATOR # 1
P2
864MW, 960MVA, 26kV0.9 PF, 3000RPM,~
G
P2
P1
P1
CORE-N2
CORE-N3
CORE-N4
CORE-L3
CORE-L2
CORE-L1
SA 30kV,20kA
UNIT TRF-10A
Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT
63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV
P2
P1
CORE-4
CORE-3
CORE-2
CORE-1
P1
P2
CORE-1 UT10A
CORE-2 UT10A
CORE-3 UT10A
P1
P2
NGT26kV/240V
√3 √3
CORE-N1
11kV, 2000A, 40kA, 1Sec
P2
P1
CORE-4
CORE-3
CORE-2
CORE-1
UNIT-10A, SWGR-A11kV, 2000A, 40kA, 1Sec
UNIT-10A, SWGR-B
TAPS IN THE RANGE OF ± IN STEPS OF 2.5%
UNIT TRF-10B
Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT
63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV
P2
P1
CORE-4
CORE-3
CORE-2
CORE-1
P1
P2
CORE-1 UT10B
CORE-2 UT10B
CORE-3 UT10B
11kV, 2000A, 40kA, 1Sec
P2
P1
CORE-4
CORE-3
CORE-2
CORE-1
UNIT-10B, SWGR-A11kV, 2000A, 40kA, 1Sec
UNIT-10B, SWGR-B
TAPS IN THE RANGE OF ± IN STEPS OF 2.5%
VT-3
VT-2
VT-1
98.94% EFFICIENCY
50Hz, 400kVA FOR 10 Sec.
STATION TRF-1
Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT
63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV
P2
P1
CORE-4
CORE-3
CORE-2
CORE-1
P1
P2
CORE-1 ST1
CORE-2 ST1
CORE-3 ST1
11kV, 2000A, 40kA, 1Sec
P2
P1
CORE-4
CORE-3
CORE-2
CORE-1
STATION, SWGR-A11kV, 2000A, 40kA, 1Sec
STATION, SWGR-B
TAPS IN THE RANGE OF ± IN STEPS OF 2.5%
P1P2 P1 P2 P1P2 P1 P2 P1P2 P1 P2
STATICEXCITATION
GCB
EXCITATIONTRAFO.
(TOSHIBA)
GT
GT
P2
P1
OH
LIN
E3
60kV
87
64
TO
40
0kV
SW
ITC
HY
AR
D
20kA
CT
(SW
ITC
HY
AR
D)
FR
OM
40
0K
V B
US
/MID
DLE
CB
WT
IR L
DC
S
GC
B E
NC
LO
SU
RE
P1
33
CO
RE
-L3
3
GE
NE
RA
TO
R #
1
P2
86
4M
W, 9
60
MV
A, 2
6kV
, 50H
z, 0
.9P
F3
00
0R
PM
, 98
.94
% E
FF
ICIE
NC
Y~ GGR
-2
P2
P1
50
Hz, 4
00
kV
A F
OR
10 S
ec.
NG
T 2
6kV
/240V
WD
G-2
: CL
.3P
, 30V
A
WD
G-1
: CL
.0.2
, 30
VA
WD
G-2
: CL
. 0.2
, 30V
A
WD
G-1
: CL
. 0.2
/3P
, 30
VA
WD
G-2
: CL
. 0.2
, 30V
A
WD
G-1
: CL
. 0.2
/3P
, 30
VA
64F2
GR
-1
VK≥
43
0R
ct +
800V
25
00
0/5
A, C
L. P
X
64F2
GR
-2
GR
-1
GT
99
GT
PR
OT
EC
TIO
NN
UM
ER
ICA
L R
ELA
Y
GE
NE
RA
TO
R T
RA
NS
FO
RM
ER
-1 (3
x1P
H)
(3x1P
H)E
AC
H 3
10
MV
A, O
NA
N/O
NA
F/O
FA
F,
42
0 / 2
6 K
V, Y
nd1, Z
=16%
√3
√3
TA
P C
HA
NG
E +
5%
TO
-15%
INS
TE
PS
OF
1%
TO
UN
IT T
RA
NS
FO
RM
ER
# 1
0A
(RE
FE
R S
HE
ET
16)
TO
UN
IT T
RA
NS
FO
RM
ER
# 1
0B
(RE
FE
R S
HE
ET
16)
VM
WP
FP
ER
FO
RM
AN
CE
TE
ST
ING
EX
TE
RN
AL
ME
TE
RS
FO
R
G
60
G1
1
SS
25
CS
WF
FW
W2
5A
GC
P
59
NG
RP
25
CS
WF
FW
W2
5A
GC
P
60
G1
3
AV
R C
H-A
DE
HC
60
G1
2
TU
RB
INE
PN
L
60
G2
2
Im≤
15
mA
AT
Vk/2
CO
RE
-L2
VK≥
43
0R
ct +
800V
25
00
0/5
A, C
L. P
X
Im≤
15
mA
AT
Vk/2
CO
RE
-L1
VK≥
43
0R
ct +
800V
25
00
0/5
A, C
L. P
X
Im≤
15
mA
AT
Vk/2
DE
HC
TU
RB
INE
PA
NE
L
CO
RE
-N4
70V
A, IS
F≤10
25
00
0/5
A, C
L. 0
.2S
CO
RE
-N3
70V
A, IS
F≤10
25
00
0/5
A, C
L. 0
.2S
AM
VA
RM
WM
WH
MV
AH
MV
AR
HV
FP
F
GM
P
TO
DC
S
CO
RE
-N2
25
00
0/5
A, C
L. P
XV
K≥
43
0R
ct +
800V
Im≤
15
mA
AT
Vk/2
11
0V
26
kV
64
G1
64
G3
87
G2
78
G2
46
G2
21
G2
32
G2
40
G2
50
GS
26
1B
23
7G
25
0L
BB
59
G2
81
G2
99
G2
59
G2
64
F2
GE
N. P
RO
TE
CT
ION
NU
ME
RIC
AL
RE
LA
Y
GR
-2
CO
RE
-N1
25
00
0/5
A, C
L. P
XV
K≥
43
0R
ct +
800V
Im≤
15
mA
AT
Vk/2
64
G1
64
G2
87
G1
78
G1
46
G1
21
G1
32
G1
40
G1
50
GS
16
1B
13
7G
15
0L
BB
59
G1
81
G1
99
G1
59
G1
64
F2
GE
N. P
RO
TE
CT
ION
NU
ME
RIC
AL
RE
LA
Y
GR
-1
NG
R2
40V
, 0.0
5454
8Ω
,1
05kW
FO
R 1
0S
ec.
20H
zS
IGN
AL
GE
NE
--R
AT
OR
87
OA
SR
P
TO
ST
AT
ION
TR
AN
SF
OR
ME
R #
1(R
EF
ER
SH
EE
T 1
6)
VT
-1
87
OH
SR
P WT
I
VK≥
84
Rct +
250V
15
00
/1A
, CL. P
S
Im≤
30
mA
AT
Vk/2
VK≥
43
0R
ct +
800V
14
00
0/5
A, C
L. P
S
Im≤
30
mA
AT
Vk/2
51
NG
T
GR
P
VK≥
84
Rct +
250V
15
00
/1A
, CL. P
S
Im≤
30
mA
AT
Vk/2
15
VA
15
00
/1A
, CL. 5
P20
GR
P
11
0V
26
kV
√3
VT
-2
11
0V
26
kV V
T-3
TU
RB
INE
PN
L
P1
P2
P2
P1
√3
√3
√3
√3
√3
11
0V
3
11
0V
√3
11
0V
√3
ST
AT
ICE
XC
ITA
TIO
NC
UB
ICLE
64F1
AV
R(T
OS
HIB
A)
G
GR
P
GR
P
60
G2
1
GR
P
60
G2
3
GR
P
GR
P
MW
MW
A
PE
RF
OR
MA
NC
E T
ES
TIN
GE
XT
ER
NA
L M
ET
ER
S F
OR
MW
-1M
W-2
MW
-3
TO
DC
ST
O D
CS
TO
DC
S
GM
P
AV
R C
H-B
DE
HC
AV
R
NG
R
3
3
P2
P1
3
FROM GENERATOR BUSDUCT TAP OFF(REFER SHEET 15)
GRP
87DCS
CORE-3 UT10A
VK≥31Rct + 100V1600/1A, CL. PS
Im≤30mA AT Vk/2
CORE-2 UT10A
ISF≤5, 5VA1600/1A, CL. 0.2S
CORE-1 UT10A
Rct≤23, 30VA6000/1A, CL. 5P20
UNIT TRF-10A
Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT
63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV
TAPS IN THE RANGE OF ± IN STEPS OF 2.5%
WTI WTI
L R
VK≥
37
Rct
+ 1
00V
20
00
/1A
, C
L. P
S
Im≤
30
mA
AT
Vk/2
80
0/1
A,
15V
AC
L.
5P
20
VK≥
37
Rct
+ 1
00V
20
00
/1A
, C
L. P
S
Im≤
30
mA
AT
Vk/2
80
0/1
A,
15V
AC
L.
5P
20
3
3
3
3
P1
P2
SG
SG
CORE-4
CORE-3
CORE-2
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
CORE-1
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
11kV, 2000A, UNIT-10A, SWGR-A
3
3
3
3
P1
P2
SG
CORE-4
CORE-3
CORE-2
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
CORE-1
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
NG
R
11kV, 2000A, UNIT-10A, SWGR-B
METERING
SG
METERING
87OA
SRP
87OA
SRP
GRPGRP
GMP
TO DCS
GRP
NG
R
3
3
P2
P1
3
FROM GENERATOR BUSDUCT TAP OFF(REFER SHEET 15)
DCS
CORE-3 UT10B
VK≥31Rct + 100V1600/1A, CL. PS
Im≤30mA AT Vk/2
CORE-2 UT10B
ISF≤5, 5VA1600/1A, CL. 0.2S
CORE-1 UT10B
Rct≤23, 30VA6000/1A, CL. 5P20
UNIT TRF-10B
Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT
63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV
TAPS IN THE RANGE OF ± IN STEPS OF 2.5%
WTI WTI
L R
VK≥
37
Rct
+ 1
00V
20
00
/1A
, C
L. P
S
Im≤
30
mA
AT
Vk/2
80
0/1
A,
15V
AC
L.
5P
20
VK≥
37
Rct
+ 1
00V
20
00
/1A
, C
L. P
S
Im≤
30
mA
AT
Vk/2
80
0/1
A,
15V
AC
L.
5P
20
3
3
3
3
P1
P2
SG
SG
CORE-4
CORE-3
CORE-2
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
CORE-1
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
11kV, 2000A, UNIT-10B, SWGR-A
3
3
3
3
P1
P2
SG
CORE-4
CORE-3
CORE-2
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
CORE-1
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
NG
R
11kV, 2000A, UNIT-10B, SWGR-B
METERING
SG
METERING
87OA
SRP
87OA
SRP
GRPGRP
GMP
TO DCS
GRP
NG
R
3
3
P2
P1
3
FROM GENERATOR BUSDUCT TAP OFF(REFER SHEET 15)
DCS
CORE-3 ST1
VK≥31Rct + 100V1600/1A, CL. PS
Im≤30mA AT Vk/2
CORE-2 ST1
ISF≤5, 5VA1600/1A, CL. 0.2S
CORE-1 ST1
Rct≤23, 30VA6000/1A, CL. 5P20
STATION TRF-1
Dyn11yn11, Z(HV)-Z(LV1)/Z(HV)-Z(LV2)=10%Z(LV1)-Z(LV2)=20% OFF CIRCUIT
63/31.5/31.5 MVA, ONAN/ONAF, 26/11.5/11.5kV
TAPS IN THE RANGE OF ± IN STEPS OF 2.5%
WTI WTI
L R
VK≥
37
Rct
+ 1
00V
20
00
/1A
, C
L. P
S
Im≤
30
mA
AT
Vk/2
80
0/1
A,
15V
AC
L.
5P
20
VK≥
37
Rct
+ 1
00V
20
00
/1A
, C
L. P
S
Im≤
30
mA
AT
Vk/2
80
0/1
A,
15V
AC
L.
5P
20
3
3
3
3
P1
P2
SG
SG
CORE-4
CORE-3
CORE-2
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
CORE-1
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
11kV, 2000A, STATION-1, SWGR-A
3
3
3
3
P1
P2
SG
CORE-4
CORE-3
CORE-2
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
CORE-1
VK≥40Rct + 100V2000/1A, CL. PS
Im≤30mA AT Vk/2
NG
R
11kV, 2000A, STATION-1, SWGR-B
METERING
SG
METERING
87OA
SRP
87OA
SRP
GRPGRP
GMP
TO DCS
GRP
UNIT TRANSFORMER # 10A UNIT TRANSFORMER # 10B STATION TRANSFORMER # 1
51
GRP
87 51
GRP
87 51TO DCS TO DCS TO DCS
505050
SG SGSG SGSG SG
P2 P1 P1 P2 P2 P1 P1 P2 P2 P1 P1 P2
~ G
P2
64
F2
FR
OM
GE
N. T
RA
NS
FO
RM
ER
-1
S2
S1
GE
N. C
TM
BP
1
TO
OV
ER
ALL
DIF
F.
TO
SH
EE
T.1
8
64F2
GR
1G
R2
TO
UT
10B
20
TO
UT
10A
19
TO
ST
AT
ION
TR
AN
SF
OR
ME
R-1
21
CO
RE
-L3
VK≥4
30R
ct +
800V
2500
0/5
A, C
L. P
X
Im≤1
5m
A A
T V
k/2
CO
RE
-L2
VK≥4
30R
ct +
800V
2500
0/5
A, C
L. P
X
Im≤1
5m
A A
T V
k/2
CO
RE
-L1
VK≥4
30R
ct +
800V
2500
0/5
A, C
L. P
X
Im≤1
5m
A A
T V
k/2
GE
NE
RA
TO
R #
18
64M
W, 9
60
MV
A, 2
6kV
, 50H
z, 0
.9P
F3
000
RP
M, 9
8.9
4%
EF
FIC
IEN
CY
Xd=
22
9(U
NS
AT
.)2
07
(SA
T.)
Xd'=
35.2
(UN
SA
T.)
32.7
(SA
T.)
Xd"=
26.5
(UN
SA
T.)
23.6
(SA
T.)
X0=
14.5
XS
=1
.46
S2
S1
S2
S1
S2
S1
S2
S1
S2
S1
S2
S1
S2
S1
S2
S1
PR
OT
N. 8
7O
A(S
RP
)
GC
B E
NC
LO
SU
RE
GGG
RE
FE
R
24
RE
FE
R
23
RE
FE
R
22
WD
G-2
: CL. 3
P, 3
0V
A
WD
G-1
: CL. 0
.2, 3
0V
A
WD
G-2
: CL. 0
.2, 3
0V
A
WD
G-1
: CL. 0
.2/3
P, 3
0V
A
WD
G-2
: CL. 0
.2, 3
0V
A
WD
G-1
: CL. 0
2/3
P, 3
0V
A
8
X11A
7
A171A
A151A
A131A
A111A
TO
87
G1
(GR
1)
10
CH
A0
0G
H001
33
X11A
135
A171B
A151B
A131B
A111B
TO
87
G2
(GR
2)
10
CH
A0
0G
H002
38
11
0V
26
kV V
T-1
11
0V
26
kV
√3
VT
-2
11
0V
26
kV V
T-3
√3
√3
√3
√3
√3
11
0V
3
11
0V
√3
11
0V
√3
2461C
ET
L1
8
X11B
7
X11B
135 2462C
ET
L1
ST
AT
ICE
XC
ITA
TIO
NS
YS
TE
MC
UB
ICLE
S(T
OS
HIB
A)
64
F1
GR
2
105K
W
0.0
54
548Ω
NG
R
TO
GR
2
A211B
A231B
A251B
A271B
9
11 X
11B
16
15
10
CH
A0
0G
H002
95
1M
TO
ME
TE
RIN
G
P2
GE
N. C
TM
B
S2
S1
S2
S2
S1
S1
RE
FE
R S
HE
ET
. 17
P1
TO
100%
& 9
5%
ST
AT
OR
E/F
PR
OT
EC
TIO
N C
KT
. IN G
R1
A186
A185
E83
E81
20
X11A
19
23
X11A
21
22
24
E82
E84
CT
-1*
* - CT
-1 &
CT
-2 T
O B
E S
UP
PLIE
D B
Y S
IEM
EN
S A
S L
OO
SE
ITE
M.
TH
E S
AM
E S
HA
LL B
E M
OU
NT
ED
IN N
GT
BY
'CG
PL'.
NO
TE
:
TO
10
0%
ST
AT
OR
E/F
PR
OT
EC
TIO
N C
KT
. IN G
R1
CT
-2*
A286
A285
18
X11B
17
TO
10
0%
ST
AT
OR
E/F
PR
OT
EC
TIO
N C
KT
. IN G
R2
NG
T
A211A
A231A
A251A
A271A
10
CH
A0
0G
H001
CO
RE
-N4
70V
A, IS
F≤10
2500
0/5
A, C
L. 0
.2S
CO
RE
-N3
70V
A, IS
F≤10
2500
0/5
A, C
L. 0
.2S
CO
RE
-N2
2500
0/5
A, C
L. P
XV
K≥4
30R
ct +
800V
Im≤1
5m
A A
T V
k/2
CO
RE
-N1
2500
0/5
A, C
L. P
XV
K≥4
30R
ct +
800V
Im≤1
5m
A A
T V
k/2
50H
z, 4
00kV
A F
OR
10
Sec.
26kV
/240V
S2
S1
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
TO
TU
RB
INE
PA
NE
L
W951
-03
38
TO
GR
1
33
33
33
38
SIZ
E : 6
4x48x85.5
MO
DE
L N
O : 4
NC
522
5-2
CE
20
10
12 X
11B
14
13 2C
ET
L2
9
11 X
11A
16
15
10
12 X
11A
14
13 1C
ET
L2
FO
R 1
0 S
ec
10
CH
A0
0G
H002
SIT
E1
TO
ME
TE
RIN
G (S
G)
10
CH
A0
0G
H004
W951
-04
TO
ME
TE
RIN
G(M
WH
)
A171D
8 X11D
A
7
A111D
A131D
A151D
X11D
A
135T
O 8
7/5
1-U
T10A
77
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
UT
-10
A C
TM
B
S1
P1
FR
OM
S2
P2
For 1
0 S
ec.
800A
NG
R
X11D
A
19
20
TO
64
-2-U
T10A
A375D
A371D
P1
10C
HA
00
GH
004
CO
RE
-3 U
T10A
VK≥31
Rct +
100V
1600/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
CO
RE
-2 U
T10A
ISF≤5
, 5V
A1
600/1
A, C
L. 0
.2S
CO
RE
-1 U
T10A
Rct≤
23, 3
0V
A6
000/1
A, C
L. 5
P20
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
S2
S1
TO
WT
I (DC
S)
VK≥37
Rct +
100V
2000/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
For 1
0 S
ec.
800A
NG
R
VK≥37
Rct +
100V
2000/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
X11D
A
17
18
10C
HA
00
GH
004
P2
77
11
kV
, 20
00
A, U
NIT
-10A
, SW
GR
-A
CO
RE
-2
CO
RE
-1
CO
RE
-3
CO
RE
-4T
O M
ET
ER
ING
(SG
)
S2
S2
S1
S1
S1
S2
P1
11kV
UN
IT-1
0 S
WG
R.
P2
A351D
A331D
A311D
A371D
31 X
11D
A
36
35
10
CH
A0
0G
H004
11
kV
, 20
00
A, U
NIT
-10A
, SW
GR
-B
CO
RE
-2
CO
RE
-1
CO
RE
-3
CO
RE
-4
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
84
TO
50 - U
T10A
C15
1D
C13
1D
C11
1D
C17
1D
17
10C
FA
00
10
CH
A0
0G
H004
TO
SG
A251D
A231D
A211D
A271D
21
23 X
11D
A
26 X
11D
A
28
10
CH
A0
0G
H004
TO
OV
ER
ALL
DIF
F.
PR
OT
N. 8
7O
A(S
RP
)
TO
SG
77
TO
OV
ER
ALL
DIF
F.
PR
OT
N. 8
7O
A(S
RP
)
88
TO
64
-1-U
T10A
86
UN
IT T
RF
-10A
Dyn
11
yn
11
, Z(H
V)-Z
(LV
1)/Z
(HV
)-Z(L
V2)=
10%
Z(L
V1
)-Z(L
V2)=
20%
OF
F C
IRC
UIT
63/3
1.5
/31
.5 M
VA
, ON
AN
/ON
AF
, 26
/11
.5/1
1.5
kV
TA
PS
IN T
HE
RA
NG
E O
F ±
IN S
TE
PS
OF
2.5
%
A275D
A271D
P1
P2
P1
P2
11kV
UN
IT-1
0 S
WG
R.
S2
S1
S1
S2
29
22
24
25
27 4C
ET
L3
30
32 X
11D
A
34
33 4C
ET
L4
A390D
A290D
2464C
ET
L1
16 X
11D
A
15 X
11D
A
9
11
13
10
12
144C
ET
L2
C190D A190D
X4
14
13
X4
17
18
TO
ME
TE
RIN
G (S
G)
10
CH
A0
0G
H004
W951
-05
TO
ME
TE
RIN
G(M
WH
)
A471D
8 X11D
B
7
A411D
A431D
A451D
X11D
B
135T
O 8
7/5
1-U
T10B
93
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
UT
-10
B C
TM
B
S1
P1
FR
OM
S2
P2
For 1
0 S
ec.
800A
NG
R
X11D
B
19
20
TO
64
-2-U
T10B
A675D
A671D
P1
10C
HA
00
GH
004
CO
RE
-3 U
T10A
VK≥31
Rct +
100V
1600/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
CO
RE
-2 U
T10A
ISF≤5
, 5V
A1
600/1
A, C
L. 0
.2S
CO
RE
-1 U
T10A
Rct≤
23, 3
0V
A6
000/1
A, C
L. 5
P20
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
S2
S1
TO
WT
I (DC
S)
VK≥37
Rct +
100V
2000/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
For 1
0 S
ec.
800A
NG
R
VK≥37
Rct +
100V
2000/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
X11D
B
17
18
10C
HA
00
GH
004
P2
93
11
kV
, 20
00
A, U
NIT
-10B
, SW
GR
-A
CO
RE
-2
CO
RE
-1
CO
RE
-3
CO
RE
-4T
O M
ET
ER
ING
(SG
)
S2
S2
S1
S1
S1
S2
P1
11kV
UN
IT-1
0 S
WG
R.
P2
A651D
A631D
A611D
A671D
31 X
11D
B
36
35
10
CH
A0
0G
H004
11
kV
, 20
00
A, U
NIT
-10B
, SW
GR
-B
CO
RE
-2
CO
RE
-1
CO
RE
-3
CO
RE
-4
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
100
TO
50 - U
T10B
C25
1D
C23
1D
C21
1D
C27
1D
17
10C
FA
00
10
CH
A0
0G
H004
TO
SG
A551D
A531D
A511D
A571D
21
23 X
11D
B
26 X
11D
B
28
10
CH
A0
0G
H004
TO
OV
ER
ALL
DIF
F.
PR
OT
N. 8
7O
A(S
RP
)
TO
SG
93
TO
OV
ER
ALL
DIF
F.
PR
OT
N. 8
7O
A(S
RP
)
104
TO
64
-1-U
T10B
102
UN
IT T
RF
-10B
Dyn
11
yn
11
, Z(H
V)-Z
(LV
1)/Z
(HV
)-Z(L
V2)=
10%
Z(L
V1
)-Z(L
V2)=
20%
OF
F C
IRC
UIT
63/3
1.5
/31
.5 M
VA
, ON
AN
/ON
AF
, 26
/11
.5/1
1.5
kV
TA
PS
IN T
HE
RA
NG
E O
F ±
IN S
TE
PS
OF
2.5
%
A575D
A571D
P1
P2
P1
P2
11kV
UN
IT-1
0 S
WG
R.
S2
S1
S1
S2
29
22
24
25
27 4C
ET
L7
30
32 X
11D
B
34
33 4C
ET
L8
A690D
A590D
2464C
ET
L5
16 X
11D
B
15 X
11D
B
9
11
13
10
12
144C
ET
L6
C290D A490D
X4
13
X4
17
18
14
TO
ME
TE
RIN
G (S
G)
10
CH
A0
0G
H005
W951
-06
TO
ME
TE
RIN
G(M
WH
)
A171E
8 X11E
7
A111E
A131E
A151E
X11E
135T
O 8
7/5
1-S
T1
108
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
ST
1 C
TM
B
S1
P1
FR
OM
S2
P2
For 1
0 S
ec.
800A
NG
R
X11E
19
20
TO
64
-2-S
T1
A375E
A371E
P1
10C
HA
00
GH
005
CO
RE
-3 S
T1
VK≥31
Rct +
100V
1600/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
CO
RE
-2 S
T1
ISF≤5
, 5V
A1
600/1
A, C
L. 0
.2S
CO
RE
-1 S
T1
Rct≤
23, 3
0V
A6
000/1
A, C
L. 5
P20
S2
S2
S1
S1
S2
S1
S2
S2
S1
S1
S2
S1
TO
WT
I (DC
S)
VK≥37
Rct +
100V
2000/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
For 1
0 S
ec.
800A
NG
R
VK≥37
Rct +
100V
2000/1
A, C
L. P
S
Im≤3
0m
A A
T V
k/2
X11E
17
18
10C
HA
00
GH
005
P2
108
11
kV
, 20
00
A, S
TA
TIO
N-1
, SW
GR
-A
CO
RE
-2
CO
RE
-1
CO
RE
-3
CO
RE
-4T
O M
ET
ER
ING
(SG
)
S2
S2
S1
S1
S1
S2
P1
11kV
ST
1 S
WG
R.
P2
A351E
A331E
A311E
A371E
31 X
11E
36
35
10
CH
A0
0G
H005
11
kV
, 20
00
A, S
TA
TIO
N-1
, SW
GR
-B
CO
RE
-2
CO
RE
-1
CO
RE
-3
CO
RE
-4
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
S2
S2
S1
S1
S1
S2
115
TO
50 - S
T1
C151E
C131E
C111E
C171E
17
95
1M
10
CH
A0
0G
H005
TO
SG
A251E
A231E
A211E
A271E
21
23 X
11E
26 X
11E
28
10
CH
A0
0G
H005
TO
OV
ER
ALL
DIF
F.
PR
OT
N. 8
7O
A(S
RP
)
TO
SG
108
TO
OV
ER
ALL
DIF
F.
PR
OT
N. 8
7O
A(S
RP
)
119
TO
64
-1-S
T1
117
ST
AT
ION
TR
F-1
Dyn
11
yn
11
, Z(H
V)-Z
(LV
1)/Z
(HV
)-Z(L
V2)=
10%
Z(L
V1
)-Z(L
V2)=
20%
OF
F C
IRC
UIT
63/3
1.5
/31
.5 M
VA
, ON
AN
/ON
AF
, 26
/11
.5/1
1.5
kV
TA
PS
IN T
HE
RA
NG
E O
F ±
IN S
TE
PS
OF
2.5
%
A275E
A271E
P1
P2
P1
P2
11kV
ST
1 S
WG
R.
S2
S1
S1
S2
29
22
24
25
27 5C
ET
L3
30
32 X
11E
34
33 5C
ET
L4
A390E
A290E
2465C
ET
L1
16 X
11E
15
X11E
9
11
13
10
12
145C
ET
L2
C190E A190E
X4
13
X4
17
18
14
GCB
R Y B N
BR
WDG - 1BURDEN: 30VA
CL-0.2/3PBURDEN: 30VA.
CL-0.2
Y
WDG - 2
R Y B N
BR Y
TO AVR
10
CH
A0
0G
H002
E113
E133
E153
X13B
1 32
TO GR-2
38
4
E173 E
911
E931
E951
E971
TO METERING
X13M
1 2 3 4
10C
FA
00
W951-03
-X83
46 47 48 43
-X83
40 41 42 37
8x
7
6x
51x
3x
2 4
2P
TM
CB
1-2
A
A2
A1
8x
7
6x
51x
3x
2 4
2P
TM
CB
2-2
A
A2
A1
X43B
1
X43B
2
X43B
3
X43B
4
E213
E233
E253
E273
E111
E131
E151
E171
X13B
5 6 7 8
E211
E231
E251
E271
2E
TL1
2E
TL2
1E
TL1
110V26kV√3
VT-1
110V√3 √3
1S
101
1S
473
1S
101
1S
473
TO
RT
U
76P
TO
RT
U
76P
GCB
R Y B N
BR Y
R Y B N
BR Y
TO AVR
10
CH
A0
0G
H001
E313
E333
E353
X13A
1 32
TO GR-1
33
4
E373
X13A
9
10
11
12
-X83
16 17 18 13
-X83
10 11 12 07
8x
7
6x
51x
3x
2 4
1P
TM
CB
1-2
A
8x
7
6x
51x
3x
2 4
1P
TM
CB
2-2
A
X43A
1
X43A
2
X43A
3
X43A
4
E413
E433
E453
E473
E311
E331
E351
E371
X13A
5 6 7 8
E411
E431
E451
E471
1E
TL1
1E
TL2
1E
TL3
110V26kV√3
VT-2
110V√3 √3
TO GCP
8x
7
6x
51x
3x
2 4
1P
TM
CB
3-2
A
X43A
5
X43A
6
X43A
7
X43A
8
E513
E533
E553
E573
E511
E531
E551
E571
WDG - 1BURDEN: 30VA
CL-0.2/3PBURDEN: 30VA.
CL-0.2/3P
WDG - 2
A2
A1
1S
101
1S
475
TO
RT
U
76P
A2
A1
1S
101
1S
475
TO
RT
U
76P
A2
A1
1S
101
1S
477
TO
RT
U
76P
TO 87GT/64GT/99GT
61
GCB
R N
BR Y
R Y B N
BR Y
10
CH
A0
0G
H003
E613
E633
E653
X13C
1 32 4
E673
X13B
9
10
-X82
10 11 12 13
-X82
01 02
8x
7
6x
51x
3x
2 4
3P
TM
CB
1-2
A
8x
7
6x
51x
3x
2 4
3P
TM
CB
2-2
A
X43C
1
X43C
2
X43C
3
X43C
4
E713
E733
E753
E773
E611
E631
E651
E671
X13C
5 6 7 8
E711
E731
E751
E771
3P
ET
L1
3P
ET
L2
2E
TL3
110V26kV√3
VT-3
110V√3 √3
4x
31x
2
2P
TM
CB
3-2
AE
913
E973
E911
E971
TO 59N CKT
43
TO GCP
8x
7
6x
51x
3x
2 4
3P
TM
CB
3-2
A
X43C
1
X43C
2
X43C
3
X43C
4
E813
E833
E853
E873
X13C
9
10
11
12
E811
E831
E851
E871
3P
ET
L2
TO EXTERNAL METERS FOR PERFORMANCE TESTING
10
CH
A0
0G
H002
WDG - 1BURDEN: 30VA
CL-0.2BURDEN: 30VA.
CL-3P
WDG - 2
A2
A1
1S
101
1S
479
TO
RT
U
76K
A2
A1
1S
101
1S
479
TO
RT
U
76P
A2
A1
1S
101
1S
479
TO
RT
U
76P
A2
A1
1S
101
1S
481
TO
RT
U
76P
*NOTE: THUS MARKED TERMINAL NUMBER SHALL BE
SUITABLE FOR 2 x 6 Sq mm WIRE.
10CHA00GH001
Ph H1
H2N
CFL
H3
H4
H5CILS
HTH8H7
TH
H10
PS
PSS
HTS
2
X61
1
240V
A.C
. S
UP
PLY
2
X79
1*
*
10CHA00GH002
H1
H2
CFL
H3
H4
H5CILS
HTH8H7
TH
H10
PS
PSS
HTS
2
X79
1
10CHA00GH003
H1
H2
CFL
H3
H4
H5CILS
HTH8H7
TH
H10
PS
PSS
HTS
2
X79
1
10CHA00GH004
H1
H2
CFL
H3
H4
H5CILS
HTH8H7
TH
H10
PS
PSS
HTS
2
X79
1
10CHA00GH005
H1
H2
CFL
H3
H4
H5CILS
HTH8H7
TH
H10
PS
PSS
HTS
2
X79
1
ACDB
12
34
A1
A2
12
34
A1
A2
12
34
A1
A2
12
34
A1
A2
12
34
A1
A2
AM
CB
91-1
6A
AM
CB
92-1
6A
AM
CB
93-1
6A
AM
CB
94-1
6A
AM
CB
95-1
6A
X79
1
2
10CFA00
TO METERING PANEL
W951-02
240V AC SUPPLY
DCSS
TO 51NGTK341
K301
J6
J5
DC1
2
4
1
3
6
8
5
7
J4
J3+VE
-VE
DCDB2
DCDB1
DC
-1
J16
10
12
9
11
14
16
13
15
J14-VEDC
-2
J13+VE
J15
J11
J12
J1
J2
X62
1
2
X63
1
2
TO GR-1
K102
X77
3 4
X77
3 4
X77
5 6
X77
5 6
10CHA00GH001
10CHA00GH002
K101
TO GR-2
K202
K201
27
IND DC2
134
682
1
43
A1
A2
1 2
3 4
A1 A2
1 2
3 4
A1 A22
1
43
TO 60G11 CKT.TO 60G12 CKT.TO 60G13 CKT.
DM
CB
112-4
AD
MC
B2
12-4
A
DMCB211-32A
DMCB111-32A
80A (MVAAM11)
80B (MVAAM11)
SL01
SL02
108
2
6
4
1
14
5
9
13
3
7
80 ± 20 MS. TDDO
K483
K401
63
108
2
6
4
1
14
5
9
13
3
7
80 ± 20 MS. TDDO
*
*
*
*
*NOTE: THUS MARKED TERMINAL NUMBER SHALL BE
SUITABLE FOR 2 x 6 Sq mm WIRE.
TO 186A1, A2, B & C
30
TO 60G21 CKT.TO 60G22 CKT.TO 60G23 CKT.
TO 286A1, A2, B & C
X77
1
2
TO GCB TC-2
K17
K15
69A
21
43
DM
CB
213
-10A
26A
26A
TO GCB TC-1
K12
K11
69
21
43
DM
CB
113
-10A
X51A
2
X51A
1
U101 U102SPARE
X51B
2
X51B
1
U201 U202SPARE
TO GCP
K52
K51
69
21
43
DM
CB
214
-10A
TO GCP
K2
K1
69
21
43
DM
CB
114
-10AS101 S179 TO RTU
76J
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76K
A1
A2
TO
RT
U
76K
A1
A2
TO
RT
U
76K
S101 S179 TO RTU
76A
TO TC-1 CIRCUIT
K2T
K1T
69
21
43
DM
CB
121
-10A
A1
A2
TO
RT
U
76J
K52T
K51T
21
43
DM
CB
220
-10A
A1
A2
TO
RT
U
76K
SUPERVISION
TO TC-2 CIRCUIT
69A
SUPERVISION
J3A
J13A
K302
K301
TO 51NGT CKT. TO TM1703
K702
K701
TO 50-UT10A CKT.
K902
K901
K1102
K1101
6872
85
TO GCB MULT. CKT.
21
43
21
43
21
43
21
43
DM
CB
115-4
A
DM
CB
116-4
A
DM
CB
118-4
A
DM
CB
119-4
A
K1302
K1301
21
43
DM
CB
120-4
A
TO 87GT/64GT/99GT
K402
K401
21
43
DM
CB
215-4
A
TO 87/51-UT10A
K1002
K1001
TO 64-1-UT10A2
1
43
DM
CB
217-4
A
K1202
K1201
21
43
DM
CB
218-4
A
K1402
K1401
21
43
DM
CB
219-4
A
TO 186D-UT10A CKT.TO 50-UT10B CKT.
101
TO 186D-UT10B CKT.TO 50-ST1 CKT.
116
TO 186D-ST1 CKT.
44TO 64-2-UT10ATO 286D-UT10A
79
TO 87/51-UT10BTO 64-1-UT10BTO 64-2-UT10BTO 286D-UT10B
95
TO 87/51-ST1TO 64-1-ST1TO 64-2-ST1TO 286D-ST1
110
TO 59N CKT.
10CHA00GH003 10CHA00GH004 10CHA00GH005
X77
1
2
X77
1
2
X77
1
2
X77
5
6
X77
5
6
X77
5
6
FROM
26
FROM
26
10CFA00
TO METERING PANEL
W951-03A
X77
1
2
220V DC SUPPLY
TO ETHERNET SWITCH
K802
K801
137
21
43
DM
CB
117-4
A
TO ETHERNET SWITCH
K602
K601
21
43
DM
CB
216-4
A
137
J6
J5
J16
J15
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76J
A1
A2
TO
RT
U
76K
A1
A2
TO
RT
U
76K
A1
A2
TO
RT
U
76B
A1
A2
TO
RT
U
76K
A1
A2
TO
RT
U
76K
SITE1
U104U103
C4
C3
C2
C1
E355
E335
E315
K101 K141TO GR-1 K
102
14
5
1
6
10
9
15
19
16
20
2
Vr
Vy
C
Vb27
25
23
13
3K
101
10CHA00GH001
B1
8
7
B2
17
18
4
A
U105
SPARE
X51A
3
X51A
4
5
60G21
1517
K131
33
FROM GR-1, VT-2WDG-1
X71
1
X71
1
X71
2
X71
2
10CHA00GH002
30
34
2626
2828
60G11 (MVAPM32)
TO GR1K101 K157 35
(SCADA ALARM)
TO 60G21K231 K202
30
U107U106
C4
C3
C2
C1
E455
E435
E415
K507 K509 TO AVR
K102
14
5
1
6
10
9
K159
15
19
16
20
TO SCADA ALARM
2
Vr
Vy
C
Vb27
25
23
13
3K
101
10CHA00GH001
B1
8
7
B2
17
18
4
A
U108SPARE
X43A
9
X43A
10
X51A
6
X51A
7
8
60G22
1517
K133
FROM AVR, VT-2WDG-1
K101
X71
3
X71
3
X71
4
X71
4
10CHA00GH002
31
35
2727
2929
60G12 (MVAPM32)
X13A
14
16
15
TO 60G22K233 K202
31
(VT-2 Wdg-1 UNHEALTHY)
U110U109
C4
C3
C2
C1
E555
E535
E515
K102
14
5
1
6
10
9
15
19
16
20
2
Vr
Vy
C
Vb27
25
23
13
3K
101
10CHA00GH001
B1
8
7
B2
17
18
4
A
U111SPARE
X51A
9
X51A
10
11
60G23
1517
K135 X71
5
X71
5
X71
6
X71
6
10CHA00GH002
32 2828
3434
60G13 (MVAPM32)
FROM GCP, VT-2WDG-2
X13A
17
19
18
TO 60G23K235 K202
32
K161TO SCADA ALARM
K10135
U204U203
C4
C3
C2
C1
E155
E135
E115
K202
14
5
1
6
10
9
15
19
16
20
2
Vr
Vy
C
Vb27
25
23
13
3K
201
10CHA00GH002
B1
8
7
B2
17
18
4
A
U205SPARE
X51B
3
X51B
4
5
60G11
1517
K231
38
FROM GR-2, VT-1WDG-1
X71
7
X71
7
X71
8
X71
8
10CHA00GH001
27 2626
3131
K201 K241TO GR2 39
60G21 (MVAPM32)
TO GR2K201 K257
40
(SCADA ALARM)
TO 60G11K131 K102
27
U207U206
C4
C3
C2
C1
E751
E731
E711
K202
14
5
1
6
10
9
15
19
16
20
2
Vr
Vy
C
Vb27
25
23
13
3K
201
10CHA00GH002
B1
8
7
B2
17
18
4
A
U208SPARE
X51B
6
X51B
7
8
60G12
1517
K233 X71
9
X71
9
X71
10
X71
10
10CHA00GH001
28 3030
3232
K507 K509X43B
5
X43B
6
K259TO GR2
K20140
60G22 (MVAPM32)
(SCADA ALARM)
FROM AVR, VT-1WDG-1
X13B
11
13
12
TO 60G12K133 K102
28
TO AVR(VT-1 Wdg-1 UNHEALTHY)
U210U209
C4
C3
C2
C1
E851
E831
E811
K202
14
5
1
6
10
9
15
19
16
20
2
Vr
Vy
C
Vb27
25
23
13
3K
201
10CHA00GH002
B1
8
7
B2
17
18
4
A
U211SPARE
X51B
9
X51B
10
11
60G13
1517
K235 X71
11
X71
11
X71
12
X71
12
10CHA00GH001
29 3131
3939
K261TO SCADA ALARM
K20140
60G23 (MVAPM32)
W951-07
FROM VT-1WDG-2
X13B
14
15
16
X13B
14
15
16
10CFA00
TO 60G13K135 K102
29
S6 R6S5 R5
S4 R4
S3 R3
S8 R8
S7 R7
10CHA00GH001
UL1
J6J5
J4J3
J1 J2
Q2Q1
Q3 Q4
Q5 Q6
R15 UL2
R17UL3
R18
R16
IL1S1
IL2S1
IL3S1
IL1S2
IL2S2
IL3S2
E313
E333
E353
E373
VT-2, CORE-1 SUPPLY110V
3
RATIO: 26KV
3
FROM
A186
A185
J7
J8
E/F PROTN.100% STATOR
R13
R14
K14
K13
K16
K15
UE
*E84
*E82
*E83
*E81
FR
OM
NG
T T
RF
18
2
1 11
-G20HZ
*E715
*E7753
12
1A1
1B4
1B1
1A4
330Ω
50H
330Ω
50H
330Ω50H
330Ω50H
330Ω50H
1A2
1A3
-EBAR
*E715A
E773
E771
STATOR E/FTO GR2 FOR 100% & 95%
ROTOR E/FFROM GR2 FOR
UPS SUPPLY
100% STATOR E/F - CT-1FROM NGR CUBICLE FOR
TD1(ROTOR E/F)
TD2(ROTOR E/F)
230V AC95% STATOR E/F PROTN.100% STATOR E/F /
J96
J97
J98
J99
K17
K18
TD3(EXCITATION VOLTAGE)
J85
J87
IEE1S3 R3
S4 R4
S3 R3
S4 R4
S5 R5
S6 R6
S7 R7
BLK-GR1B
S8 R8
S9 R9
S10 R10
J76
J77
J78
J79
A189
A187
E315
E335
E355
E375
E783
E781
38
A152AA151A
A251A
A231A
A211A
A252A
A232A
A212A
A131A
A111A
A132A
A112A
A172AA171A
A271A A272A
S10 R10
R7S7
S9 R9
S8 R8
18
38
23
131
131
131
131
GEN. LINE SIDE CTCORE-L3
17
GEN. NEUTRAL SIDE CTCORE-N1
18
X43A
11
12
20Hz GENERATOR
20Hz BANDPASS FILTER
X71
13
14
X71
13
14
FAULT RELAYTO ROTOR EARTH
38
FROM STATION
(FOR ROTOR E/F)
GR1 (7UM62)
G20HZ(7XT33)
FGR1 (7XT34)
BLK-GR1A
BLK-GR1B
BLK-GR1C
BLK-GR1C
13110CHA00GH002
LED MARSHALLING DETAILS:
LED NO. GR1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DIFF. PROTN. OPTD.
95% & 100% STATOR EARTH FAULT
POLE SLIPPING PROTN. OPTD.
LOSS OF EXCITATION PROTN. OPTD.
NEG. PHASE SEQ. PROTN. OPTD.
B/U. IMPEDANCE PROTN. OPTD.
REVERSE POWER PROTN. OPTD.
LOW FORWARD POWER PROTN. OPTD.
UNDER FREQUENCY PROTN. OPTD.
OVER VOLTAGE PROTN. OPTD.
DEAD MACHINE PROTN. OPTD.
OVER FLUX PROTN. OPTD.
LBB PROTN. OPTD.
ROTOR E/F PROTN. OPTD.
TO60G1127
PROTN. OPTD.
1. * MARKED CABLES SHOULD BE 5Sq mm SCREENED CABLES (IN SIEMENS SCOPE).
NOTE :
2. ROTOR E/F PROTECTION:THE RESISTOR & CAPACITOR IS PROVIDED IN THE EXCITATORY CIRCUITTO MONITOR UNDER EXCITATION VOLTAGE MONITORING(VOLTAGE SUPERVSION).TO OPERATE UNDER EXCITATION PROTECTION, ALL THE THREE TERMINAL PHASE CURRENTAND ALL THE TERMINAL VOLTAGE IS REQUIRED. THE SAME IS ALREADY PROVIDED.IN ADDITIONN TO THIS WE HAVE PROVIDED UNDER EXCITAITON VOLTAGE MONITORINGTHROUGH TRANSDUCER OF 7UM62 RELAY TD3 TO GET FAST TRIP.PLEASE REFER CHAPTER 2.16 OF 7UM62 MANUAL FOR FURTHER DETAILS.
110V
3
SITE1
SITE1
CB CLOSED
13
60G11
GT-1 ON GRID/BUS CB
EXCITER FIELD
K151
# TRIP
TURBINE TRIP CHANNEL-1
K155
37 BLOCK, 40G1 BLOCK, 78
K153
K102
7UM62
F10BI1
GR1
F5
21G1 B/U IMP, 27G1U/V
BI2
BI3
F6
F7
BI4
BI5
GT-1 ON GRID/MIDDLE CB
F8
F9
BI6 K10K9
GCB 50LBB
K12BI7
P18BI8
TURBINE TRIP CHANNEL-2
K11
P17
10CHA00GH001
K101
K141
K143
K145
X41A
1
X43A
13
X41A
2
X43A
14
X43A
15
X43A
16
X43A
17
X43A
18
19
SRP-403
(VT2 CORE-1 SUPPLYFAILURE)
EXCITER CB
EXCITATION TR-MB
TURBINE
GT CB-R
K147
29 29
27
3535
K149186A1
186A2-1
1917
1917
46
47
# EXCITATION TRANSFORMER
WINDING TEMPERATURE VERY HIGH .
SITE1
THIS SIGNAL SHALL BE MADE AVAILABLE
TO DCS THROUGH SOFT LINK
GT CB-Y GT CB-B
X41A
3
X41A
4
SRP-402
TIE CB-R TIE CB-Y TIE CB-B
SITE1
SITE1
34 34
46 46
10CHA00GH001
K165
K163
K161
K101
K159
F2
=
=F1
POWER SUPPLY
N5BI10N3
BI11
BI12
N4
N6
GEN VT-2 CORE-1
N8BI13
N10BI14
N7
N9
GEN VT-2 CORE-1
BI15 N12N11
GCB LBB OUT
K101
K102
(7UM62)GR1
60G11
108
108
10
60G12
60G13
8
K167
FUSE FAILURE-60G11 ALARM
FUSE FAILURE-60G12 ALARM
GEN VT-2 CORE-2FUSE FAILURE-60G13 ALARM
K157
N5BI09
N3
1 2
IN OUT
GCB LBB IN
3 4
LBBSW1
X71
15
X71
16
10CHA00GH003
17
GCB OPEN
GCB CLOSE
K169
X71
15
X71
16
17
1413
GCB
21
GCB
71
134
27
28
29