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~,._11 o.c OVER EXCIT. [ND GENEliATO/i ANTI·~~~:::) .t .f£(JIJ£NT. THIP TF,IP TRIP · EMER

6. Tl{/PI UNIT TRIP PHASE A MAIN ~KANSFo;;,~; S~DDEA/ PRESSUR~ TRl;HASE C I GEN. S!ART-(JP OV TRIP J GEN NEU~t START-t'PtNTIIIP r1-i-~--OP_E_N_P_HA_S_E_-__ •-il

RG SEE NOTE 1 J,fAN. , , , 1 Pl ,

----Pl ---.;;,~---------~---+-------------,"ll!""--------------------------------------------------,--------------+-.1-----'::-'------+---,RG / <e Pl ,I -

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DEVICES

3XG2 27G2DC 32G2A 40G2 40XG2 40YG2 59STIG2 59STIXG2 59NSTG2

59NXSTG2

62AMG2 62XAMG2 51EI 63FPA B,C

63YMT2A, 2B,2C 63XMT2

86G2 87G2 87XG2 87YG2 87U2 87XU2

552X

9

FUNCTION RATING 8:: TYPE ::a:

CAT. /REF. DWG. No.

SEQUENT I AL TR IP AUX. RELAY 125V DC W MG-6 289B360A20 GEN. CONT. DC BUS UNDERVOLTAGE RELAY 125V DC W SG 293B254A20 GEN, REVERSE POWER RELAY - - 2 GEN. LOSS OF FIELD RELAY - - 2 GEN. LOSS OF FI ELD AUX. 125V DC W AR 606B028A09 RELAY GEN. START-UP OVERVOLTAGE RELAY - - - 2 GEN. START ·UP OVERVOLTAGE AUX. RELAY 125V DC W AR 606BOl7A09 GEN. NEUT. START-UP OVERVOLTAGE RELAY - - - 2

10

REMARKS

PHASE A FOR COIL SEE REF. 24 DOUBLE UNIT SEE NOTE 4 FOR COIL SEE REF. 24 SEE NOTE 4 FOR COIL SEE REF. 24

GEN. NEUT. START-UP OVERVOLTAGE AUX. RELAY

125V DC W AR 606BO I 7A09 SEE NOTE 4

GEN. ANTI-MOTORING TIMER RELAY GEN. ANTI-MOTORING TIMER AUX. RELAY EXCITER OVERCURRENT RELAY MAIN TRANSFORMER SUDDEN PRESSURE DEVICE

MAIN TRANSFORMER SUDDEN PRESSURE DEVICE AUX. RELAY

115VAC W TK 1876014 2 SEC TO 50 MIN ADJUST 125V DC W SG 1342925

w 663298

42

0. 212. OA GE HAA I 2HAA I 5A4F

MAIN TRANSFORMER SUDDEN PRESSURE DEVICE AUX. RELAY

125V DC W AR 606BO I 7A09 SEE NOTE 4

UN IT TR IP LOCKOUT RELAY 125V DC W WL GEN. DIFFERENTIAL RELAY - - -GEN. DI FF ER ENT I AL AUX. RELAY 125V DC W AR GEN. DIFFERENTIAL AUX. RELAY 0.2/2.0A GE HAA UNIT OVERALL DIFFERENTIAL RELAY - - -UNIT OVERALL DIFFERENTIAL 125V DC W AR AUX. RELAY 500KV P.C.B. AUX. RELAY

2 606B017A09 12HAAl5A4F

2 606B017A09

4

HAND RESET FOR COIL SEE REF. 24 SEE NOTE 4

FOR COIL SEE REF. 24 SEE NOTE 4

CONTACT CLOSED WHEN 500KV BKR CLOSED

t-:5-=5-=-2y,.,.,-1 --l-=5-=-oo""'K.,.,.Vc---=-P-. C""".""'B-. -A77U.,.,.X'""". """'R=-cE"""L""'"A,.,.Y--+-----+-~+--~-+---4

---1-CO-N-TA_C_T_C-LO-S-ED-WH_E_N--1_,_o_,_o_ BOTH 500KV BKRS OPEN

NI -'----<►.!!!ia=---------------------------·---.. CKT N! GM/

LOSS OF SYSTEM LOAD GENERATOR DIFFERENTIAL TRIP UNIT OVERALL DIFFERENTIAL TRIP 500KV TIE LINE DIFF. TRIP

500KV BKR FAILURF

TIMER/LINE CH A TRIP

500KV LINE

SET A & B TRIP

DIR.QC & GND n IR. oc

TRIP

500KV BKR FAILURE

TIMER TRIP

NI

GENERATOR LOSS OF FIELD

.-r RG'-</.,_ ____ ...,..P ...... 1 ------------------------------------------------....------------Q-R=G~--------------::-:---P_I.,._ ____ -.-----------, CG ~--------::....-..-·----1------'-P-'-l _____ _.,. ________ -+_.,.---------------------------------~-,__--+-----------+----------...-------;,P.,;-I--, RG

( l\ I\ A CIRCUITS INSIDE THIS Pl ~ C_G '.J CJ \._j) DASHED LI NE ARE ~

C(, LAM!' TEST CG CG COVERED WITH I JW8 _CG CKT. SCHEDULE , --y= l -

P30 ,JI L Pl5 PB -j Pl(, ,,.--SEAL IN BUS P27 DWG. NO. 036679 : Pl : P28 L

CG 8 MATCH CIRCLE REF.24

iRTF:z~L-t--l-,-____ :.,_ ____ +R~6-------,----tR-::-6j;----------------+.r--------------,.-------;J;-,-;,R;,;G-t::==:::;--:=,=-:=-:==-:::-r,---Jt-_J~W-;-7-----7 ,r--;;;R_GT----7~R~Gl

5 87U2 P27 Pl 40G2 GMATCH

tPS.JZ!JX I 0: 94-LSL2 ;'87YG2 - ----------------------------------------1 J EEW30 EEW29 RWl7 RW25 RW24 ---------- ::====+::;':· CIRCLE • IO /0 IQ 4 - - - IO~FIELDADD ~-~ REF.19

RTFW21 4 87G2 6t------.4--, A¢ I /3<$> },,_ 5~P17t s•~ s•~ 0 <JLIMPER

P3/ 94L5l2'~s ,-------1 7 ----<1-,-------,1 ,t ,, C,f, ~r,' ------ 3_587:_2A_ I 1~ -i~ T~ 1~ 1! 7 -~z .lies I

i MATCH I ~--+ I "]CS -I IT -rl IT ~ I Gl9 G23 G27 I ~~ ~~ ~~ ~i ~i L X ;i;;D -r I I ... I t,"'} I"") l""l,l I .SAME AS A ¢- SAM£ AS A(, I , , I

3 - I N N Nl SEE NOTE 5 I ;;;;T !' ~T I 0 4-IE/ASX , r ,., +----' I O co O I =~ca •• JCS , .co , tCJ "" 1 "' __ _..,_ _ _. 1 ~ ~ !345! 12s31 12a41 ~

0 MATCH CIRCLE -----------1 REF.44

Pl RG

51 I BFX I -542

51 1 BFX I -642 587-2A

500KV HVCB 542 BREAKER FAILURE 125V DC MVAJ21 AUX. RELAY -

500KV HVCB 642 BREAKER FAILURE 125V DC MVAJ21 AUX. RELAY -

500KV LINE DIFF. RELAY SET A

594L-2D DIR. QC & GN DIR. QC RELAY K635 SEQUENTIAL TRIP AUX. RELAY

4101942

4101943

24

17 31,32,39

43U2/RCO RELAY CUTOUT SWITCH - - - 24

CONTACT IS CLOSED WHEN TURBINE STOP VALVES ARE CLOSED OR ON AUTO STOP LO-PRESS

594G2 500KV BKR FAILURE TIMER/LINE 125V DC W AR 606BOl7A09 SEE NOTE 4 CHANNEL "A" TR IP RELAY

89XD 25KV ISO-PHASE DISCONN. SW. AUX. SW. - - - 25 62AMG2X HI PRESS. ANT I -MTR AUX. RELAY 120V AC W AR AR440AR OXP-2/K3 OVEREXCITATION TRIP RELAY W 663298 PS30 HI PRESS. ANTI-MTR PROTECTION DWG 061236

- - DWG 108004 CLOSE ON DECR. DIFF. PSID

41E/ASX 94LSL2 552Y3

PS329X

FIELD BREAKER AUX. RELAY LOSS OF SYSTEM LOAD RELAY 500KV AIR CKT BKR AUX. RELAY

MAIN TURBINE AUTO STOP OIL PRESS. AUX. RELAY

594L-2A 500KV LINE SET A TRIP RELAY 594L 2B 500KV LINE SET B TRIP RELAY 46TGM- I 500KV OPEN PHASE CH. I !PASSIVE DETECTION)

46TGM-2 500KV OPEN PHASE CH.1 !PASSIVE DETECTION!

125V DC W AR

SEL 24 I I

SEL 24 I I

9

4

5

43 43

SEE NOTE 6 CONTACT CLOSED WHEN BOTH 500KV BKRS OPEN

CONTACT CLOSED~ 45 PSIG DECREASING

6024618 _21 PSS TECH COMPONENT: SEL 24 I I

6024618 _22 PSS TECH COMPONENT: SEL 24 I I 61 1 C , A I.. L IJ r ' >- • • >- ~ x I 1 0 • I G 1-7 G2 I G25 I O O _x O O x V -~

S£ I I I I ~ ~ ~ - - - - - - - - - - - - ~ 2 1 l----:-(R$25 RW~4 I 7 I , ;~ v. "- " I IO\ EEW29 R_W_l7 2 _ _ , JCS LJ 10';

P32 I I IQ _Ir------~~------'------- Z _______ I _______ !~- ~JW7 3:~ :~ l

~ MATCH '(jD CIRCLE ~""" REF. 24

NI RG

46TGM-I I 500KV OPEN PHASE CH. I !ACTIVE DETECTION I 1~,';}u CRI0-9068 6024618-21 ~~t O TECH COMPONENT: f-4-6-T G-M--2-1-+5-00-KV_O_P-EN-P-HA_S_E -CH-. 1-1 A-CT-I V-E-D-ET-EC_T_I 0-N 1-+---+l~~,,;~}u f-CR-10--.. -,, t--60_2_4 6-l-8--2-2-+""~~cict"'o T=E=cH~co=M=po=N=EN=T~: ,;_rn_,D

8 7+----' 3------+------------------------

2 1 ~ ,r TR IP Btl S , R G - 2 _RG R::G~1---+--------t----------1t---+---+l-6+,►-4-3_U_2-.---"'1--c::c..______--T-R-I-PP-I-N-G-D-I-B~~DE----------------t-------------<t--------+2---------l--+------:::R~G

-~ =~ ASSEMBLY 2 I

RG -------

3 0 0 - ,,, C: il,l 0

"' N

------------- DC BUS GEN. ANT I ----..____ POTENTIAL MOTORING UNIT TRIP

DEVICE 27G2DC 62AMG2X 86G2 CKT. No. AV2807D AY2828D AY2821D

CH I CH 2 BYPASS NORMAL BYPASS

CONTACTS

1-- :f--o2 A

Yf--o 3 B

Yf--o 5 D

T RCO DSGN. STD. 455021 '""~--n--

11 IS

TABLE OF ALARMS

MAIN TRANSF. SUDDEN GEN. START-UP GEN. NEUTRAL GEN. DIFF. UNIT OVERALL 500KV LINE GEN. LOSS GEN. EMERG PRESSURE TRIP av. TRIP START-UP av. TRIP TRIP DIFF. TRIP DIFF. TRIP OF FIELD TRIP

63XMT2 59ST I XG2 59NXSTG2 87XG2 87XU2 587X 40XG2 5G2/CS AP2804D AV280 ID AV2803D AD2803D AD2802D AD2804D AY2832D AY2820D

CHANNEL I BYPASS

X

X

POSITION

NORMAL CHANNEL 2 REMARKS BYPASS

X THIS DWG

THIS DWG <

X SPARE

SPARE

NORMAL

EMER.+ TRIP+

POSITION CONTACTS EMER

TR Ip" NORM REMARKS

o-H--0 A X UNIT TRIP !THIS DWGl o-H--0 B X UNIT TRIP REF. 4 o-H-o C X ALARM DWG• 500783 o-j l--0 D X SPARE 0-j l--0 E X SPARE 0-j l--0 F X SPARE

LOSS OF SYS. LOAD 94LSL2

AY2822D

ALARMS 500KV SYSTEM ___,,

~125on

>', 25W

\ UN IT TR IP 500KV OPEN PHASE

' 86G2 86G2 I

SEE REF. 30

45YTGM- I, 2 45ZTGM- I, 2 46TGM-l,2

SEE REF. 26

NOTES: I. FOR WIRING OF THESE POLES SEE DWG. 441247. 2. TEST RELAY CONTACT OPEN DURING TEST. 3. SET SEQUENTIAL CONTACTS I & 2 FOR SIMULTANEOUS OPERATION. 4. ADJUST MIN. PICKUP TO 70 VOLTS AT JOBSITE.

... c; Of-­Ow U"> Vl

NI RG

46TGM SWBP 500KV OPEN PHASE BYPASS SWITCH 125VDC

REFERENCE owes.: I • 2. 3. 4. 5. 5. 7. 8. 9. I 0.

DESCRIPTION OF ELECTRICAL SCHEMATIC DIAG., SYMBOLS & CIRCUIT DESIGNATIONS--DWG. SINGLE LINE METER & RELAY DIAGRAM GEN., MAIN TRANSFORMERS & EXCITATION---- DWG. SCHEMATIC DI AGRAM - GENERATOR CONTROL- - - - - - - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DI AGRAM - GENERATOR CONTROL- - - - - - - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DI AGRAM - TURBINE CONTROL- - - - - - - - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DI AGRAM - TURBINE CONTROL- - - - - - - - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DI AGRAM - TURBINE CONTROL- - - - - - - - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DIAGRAM - BRUSHLESS EXCITATION CONTROL------------------ DWG. SCHEMATIC DIAGRAM - BRUSHLESS EXCITATION CONTROL------------------ DWG. SCHEMATIC DIAGRAM - MAIN TRANSFORMER COOLING PHASE "A" --------------DWG. SCHEMATIC DIAGRAM - MAIN TRANSFORMER COOLING PHASE "B" -------------- DWG. SCHEMATIC DIAGRAM - MAIN TRANSFORMER COOLING PHASE "C" -------------- DWG.

11. SCHEMATIC DIAGRAM - 12KV BUS SECTIONS D & E AUTOMATIC TRANSFER --------DWG. 12. SCHEMATIC DIAGRAM - 4160 V BUS SECTIONS D & E AUTOMATIC TRANSFER -------DWG. 13. SCHEMATIC DI AGRAM - 4 150 V BUS SECT I ON F AUTOMATIC TRANSFER - - - - - - - - - - DWG. 14. SCHEMATIC DIAGRAM - 4160 V BUS SECTION G AUTOMATIC TRANSFER ----------DWG. 15. SCHEMATIC DI AGRAM - 4 160 V BUS SECT I ON H AUTOMATIC TRANSFER - - - - - - - - - - DWG. 16. SCHEMATIC DIAGRAM - 500KV SWITCHYARD-500KV BREAKER FAILURE HVCB ----------DWG. I 7. I 8. I 9. 20. 21 • 22. 23. 24. 25. 26. 27. 28. 29.

SCHEMATIC DIAGRAM - 500KV SWITCHYARD SHEET No. 32 ----------------- DWG. SCHEMATIC DIAGRAM - 500KV SWITCHYARD-HVCB BRKR CONTROLS AND CONTRACT TABLES---- DWG. SCHEMATIC DIAGRAM - AUX. TRANSFORMER No. 21 & ASSOC. CIRCUIT BREAKERS----DWG. SCHEMATIC DIAGRAM - AUX. TRANSFORMER No. 22 & ASSOC. CIRCUIT BREAKERS---- DWG. SCHEMATIC DI AGRAM - GENERATOR CONTROL- - - - - - - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DIAGRAM - SEAL OIL, STATOR COOLING & HYDROGEN CONTROL SYSTEM ---DWG. SCHEMATIC DIAGRAM - SEAL OIL, STATOR COOLING & HYDROGEN CONTROL SYSTEM ---DWG. SCHEMATIC DI AGRAM - GENERATOR & MA IN TRANSFORMER - - - - - - - - - - - - - - - - - DWG. SCHEMATIC DI AGRAM - 25KV I SO-PHASE BUS MOTOR OPERATED DISCONNECT SW! TCH- - - DWG. SCHEMATIC DI AGRAM - MA IN ANNUNCIATOR - - - - - - - - - - - - - - - - - - - - - - - - - DWG. SINGLE LINE METER & RELAY DIAGRAM 125V DC SYSTEM -----------------DWG. DELETED

LECTOI· I01lOJLE 60246 I 8- 2 I PSS TECH COMPONENT: SllllOI SWBP J

No. No. No. No. No. No. No.

050003 44 225 44 245 44 246 44 253 44 254

No. 44 No. 44 No. 40

44 255 248 249 8482 & 8484 & 8486 & 350

No. No. No. No. No. No. No.

40 40 44 44 44 44 44

351 352 353 354

4018483 4018485 4018487

No. No. No. No. No. No. No. No. No. No. No. No.

4101942,4101943,4101944 443548 4098858,4098834,4098835,4098854 441347 441349 441247 441250 441251 441244 441267 500783,84,90 441240

No. 103013 No. 443552 No. 663231 No. 663195

7 ~---1: f--o 8 E X SPARE UNIT TRIP CONTROL SWITCH 5G2/CS WITH RED OVAL HANDLE, SPRING RETURN

TO NORMAL, USED AT LOC. CC3

5. SET !CS TARGET ON 2 AMPS TO PREVENT !CS SEAL IN WHEN 43U2 IS IN TEST.

30. 31 • 32. 33. 34. 35. 36. 3 7. 38. 39. 40. 4 I • 42. 43. 44.

LIST OF EQUIPMENT LOCATION CODES----------------------------DWG. SCHEMATIC DIAGRAM - 500KV SWITCHYARD SHEET No. 37 (ANN ALARMS)--------- DWG. SOLID STATE PROTECTION SYSTEM - MFR DWGS----------------------- REC. FUNCTIONAL DIAGRAM - MFR. DWGS ----------------------------- REC. SCHEMATIC DIAGRAM - DEH INPUTS AND OUTPUTS·--------------------- DWG. SCHEMATIC DIAGRAM - TURBINE GENERATOR INSTRUMENTATION-------------- DWG. SINGLE LINE METER & RELAY DIAGRAM 120V INSTR. AC SYSTEM -------------DWG. SCHEMATIC DIAGRAM - TURBINE LUBE OIL PUMPS--------------------- DWG. SCHEMATIC DIAGRAM - BRUSHLESS EXCITATION CONTROL------------------ DWG. SCHEMATIC DIAGRAM - ISO-PHASE BUS COOLER ---------------------- DWG. SCHEMATIC DIAGRAM - SSPS OUTPUT RELAYS, TRAIN A, TRAIN B ------------ DWG. SCHEMATIC DIAGRAM - HEATER 2 DRAIN TANK PUMP No. 21 --------------- DWG. SCHEMATIC DI AGRAM - CNDS & CNDS BOOSTER PUMPS· - - - - - - - - - - - - - - - - - - - DWG. SCHEMATIC WIRING DIAGRAM - MFR DWG. -------------------------- DWG. SCHEMATIC DIAGRAM - 500KV SWITCHYARD ------------------------- DWG. SCHEMATIC DIAGRAM - 500KV SWITCHYARD UNIT 2 500/25KV TR BK N0.2

No. 452665,441517,441518,441209 No. 441261 Yf--o9 F X

CONTROL SWITCH 46TGM SWBP

USED AT Loe: EQOPPMI 3-POSITION SWITCH IELECTROSWITCH SERIES IOI I

SPARE 6. ADJUST MIN. PICKUP TO 70 VOLTS OR GREATER AT JOBSITE.

EQUIPMENT LOCATIONS: XPS30

SEI CC3

CG RG

JW7 RWl6 TQMA

RNSOA RNSTA

EQOPPMI EQOPPM2

GEN. ANTI-MOTORING PRESS. SW., LOCALLY EXCITATION SWITCHGEAR CUBICLE No. I GENERATOR CONTROL CONSOLE CONTROL BOARD MAIN GENERATOR GENERATOR RELAY BOARD TERMINAL BOX No. 7 500KV SWYD 500KV RELAY BOARD No. 16 500KV SWYD MAIN TRANSFORMER 2A CONTROL CABINET RACK NUCLEAR SAFEGUARD OUTPUT A RACK NUCLEAR SAFEGUARD TEST A 500KV OPEN PHASE CHANNEL I 500KV OPEN PHASE CHANNEL 2

MOUNTED

__,--._500KV LINE ANNUNCIATION AND RECORDING ANNUNCIATOR INPUTS------------ DWG. ( 45. MFR DWGS - 500KV OPEN PHASE PROTECTION------------------------ DWG.

-~ - .....__...__,.._ ~,A_ - A.. ..........

KEY DWG. SECTION~5_

DATE 08-01-2018

D. □. ZNS4 R. E. RXG2

REVISION DESCRIPTION Revised Per DDN-2•1717

UNIT 2 ELECTRICAL

SCHEMATIC DIAGRAM GENERATOR CONTROL

DIABLO CANYON POWER PLANT

No. 445291 No. 441260 No. 441256 No. 441268 No. 503089, 503093 No. 441276 No. 441274 No. 663356-43 No. 4022489

No. No.

443552 60246 ls)

DWG SCALE, BILL OF MATL, SUPSDS, SUPSD BY:

DRAWi NG

~ ,.,l_

B C P.G.&E. SYSTEM PHASE SEQUENCE

A-C-B

SHEET PAGE I. V. NIA

P. E. N/A PACIFIC GAS AND ELECTRIC COMPANY

SAN FRANCISCO, CALIFORNIA 0 REV

29

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