ML21209A338

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1 to Updated Final Safety Analysis Report, Chapter 8, Figure 8.3-8, Revision 10, Electrical Reactor, Turbine and Generator Trip Diagram
ML21209A338
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 04/30/2021
From:
Dominion Energy South Carolina
To:
Office of Nuclear Reactor Regulation
Shared Package
ML21209A581 List: ... further results
References
21-167
Download: ML21209A338 (1)
v • d • e


Text

17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 MAIN XFMR/GEN XFMR XTFZ-ES XFMR XTF2-ES XFMR XTF\-EG XFMR XTFt-EG DISTANCE FREQUENCY FREQUENCY FIELD MAIN XFMR XFMR XTF31-ES XFMR XTF31-ES XFMRS MANUAL SOURCE RANGE POWER RANGE POWER RANGE 2 OF 3 LOW UNDER PRESSURIZER STEAM GEN LOW AUTOMATIC MANUAL XFMR XTF5 XFMR XTF5 OVERPOWER A OVERALL DIFFERENTIAL LOW SCDE GROUND OVERCURRENT DIFFERENTIAL FAULT PRESSURE RELAY 58.5 HZ 58 HZ FAILURE HIGH SIDE BREAKER FAIL DIFFERENTIAL FAULT PRESSURE ITF (31 & 32) ES OVERALL D[ff XFMR XTF4 DIFFERENTIAL XFMR XTF4 FAULT PRESSURE DIFFERENTIAL OVERCURRENT MANUAL REACTOR TRIP

'A' TRAIN SAFETY HIGH FLUX ClNTERLOCKEO HIGH FLUX HIGH SETPOINT HIGH FLUX LOW SETPDINT .OT PRIMARY COOLANT FLOW FREQUENCY REACTOR LOW PRESSURE (INTLK BY P7J LEVEL 1 OF 2 &

LOW FEEDWATER

'A' TRA[N SAFELY

'A' TRAIN SAFETY A

OVERCURRENT 5IT2- I 87TlM 81-3 llr. 81-4 81-5 & 81-S INJECTION IN20F3 COOLANT 87ClM 51NL2 2 OF 2 63 " 50 BF/Tl 87131 63 8713 87T4 03 87T5 5lT5 I OF 2 SIGNAL 1 OF 2 BY P6 & Pll?JI 1 OF 2 2 OF 4 INTERLOCKED BY PL0l 2 OF 3 LOOPS UNTLK BY P7)

PUMP BUSSES 2 OF 3 2 OF 3 FLOW 1 OF 2 lN 1 OF 3 LOOPS INJECTION SIGNAL INJECTION SIGNAL 2 OF 4 8\X-lA,lB,lC I OF 2 L

GENERATOR DIFFERENT AIL XFMR XTFZ-ES DIFFERENTIAL XFMR XTF2-ES FAULT PRESSURE XFMR XTFl HI SIDE NEUTRAL VOLTAGE UNBALANCE FREQUENCY 52 HZ NEGATIVE PHASE SEQUENCE XFMR XTF31-ES LOW SIDE GROUND XFMR XTF31-ES H[ SIDE OVERCURRENT XFMR XTF-31 HI SIDE BREAKER FAILURE SIMILAR TO XFMR XTF31-ES CXFMR XTF32-ESl XFMR XTF4 HI SIDE GROUND OVERCURRENT XFMR XTF5 HI SIDE GROUND OVERCURRENT XFMR XTF5 FAULT PRESSURE

  • r.. MANUAL REACTOR TR[P INTERMEDIATE RANGE HIGH FLUX POWER RANGE HIGH FLUX RATE OVER TEMPERATURE
t. T 20F3LOW PRIMARY COOLANT FLOW UN ERVOL TAGE REACTOR COOLANT PRESSURIZER HIGH PRESSURE PRESSURIZER HIGH LEVEL UNTLK BY P7>

LO-LO STEAM GENERATOR TRA]N '8' REACTOR TRIPS SIMILAR TO TRAIN 'A' TRAIN 'B' REACTOR SHUNT TRIPS SIMILAR TO 87T2-t OVERCURRENT 81-1 & 81-2 46 OVERCURRENT 51NH31 51?JBF /EAl AS SHOWN TRAIN 'A' IN 1 OF 3 LOOPS PUMP BUSSES 2 OF 3 WATER LEVEL 87G 63 51NH1 S0G 51NL31 5INH4 51NH5 63 .... 1 OF 2 1 OF 2 2 OF 4 2 OF 3 IINTLK BY PB) 2 OF 3 27-lA,IB,lC 2 OF 3 2 OF 3 AS SHOWN L - '

.L I

~P7 r --P7

.I. .I. j_ l XFMR XTF4 I ...,_ r I

I I I OVERCURRENT 51T4 ....J L

  • F=---1-----1---+---+---l-----lf------~+- COOLANT TRIP REACTOR )

"B" TRAIN REACTOR

( )

SEE DETAIL 1

~---'----"""' PUMP BREAKERS ....... TR[P B TD= TD= XFMR XTF31-ES XFMRS XFMR XTF32-ES I B 96 SEC.

10 SEC.

LOCKOUT RELAY XTF3\ & 32-ES OVERALL OIFF LOCKOUT RELAY I LOCKOUT RELAY XFMR XTF4 XFMR XTF5

.L 8ST3l B6T3 8ST32 LOW SIDE GROUND OVERCLJRRENT

  • - LOW SIDE GROUND OVERCURRENT I ) ' 51NL4 51NL5 ENGINEERED SAFETY FEATURES ACTUAT[ON G2- "A" TRAIN REACTOR OVERALL BACKUP h~us lA,IB & IC G8T

'i:::'.....-~ I TRIP SEE (wi OWG.1080837 SH.8 LOCKOUT RELAY SSCIM t'HASE & GROUND OVERCURRENT 51BX-1A,1B & IC SEE DETAIL 2-----,

I j_ L

~--~------------------~ ~IMS-41-011-8-2)

- l BUS l X BUS 10A BUS 108 BUS !DX DIRECTIONAL BUS l X XFMR XTF4 GENERATOR XFMR XTF5 XFMR XTFI MAIN XFMR l j_

FROM XTF5 PHASE &. GROUN[ PHASE&. GOUNO FROM XTF31 OVERCURRENT LOCKOUT RELAY LOCKOUT RELAY PREWARMING LOCKOUT RELAY PREWARMING HIGH SIDE I UNOERVOLTAGE 27-5-IOX OVERCURRENT 51BX-10A OVERCURRENT 51BX-1DB UNDERVOLTAGE 27-31-l X 86T4 LOCKOUT RELAY 86T5 OVERCURRENT OCB OPEN ROD DRlVE ROD DRlVE

  • ROD DRIVE ROD DRIVE BREAKER BYPASS BREAKER BYPASS BREAKER BREAKER 86B 86 PWR 50M-PWR XFMR XTF2-ES XFMR XTFI-EG TRIP VOLTAGE GENERATOR I I 67 52 52CUVJRTA 52CUVlBYB 52(UV)BYA 52(UV>RTB GENERATOR DIFFERENTIAL LOCKOUT RELAY LOCKOUT RELAY REGULATION TO MANUAL STATOR GROUND y I I TRIP TRIP I...__,.) TRIP TRIP LOCKOUT RELAY 86T2-I 86TIM ' I T B6G 64G GENERATOR BACKUP BUS lA, 18 &. lC ROD DRIVE LOCKOUT RELAY XFMR XTF2 ROD DRIVE ROD DRIVE ROD DRIVE

(...____,.> I I PREWARMING NORMAL SHUNT SHUNT SHUNT SHUNT C B6GC .... -' OVERCURRENT

[NCOMING BREAKERS OPEN 52(SHTR!/RTA TRIP 521SHTRIBYB TRIP 52(SHTRlBYA TRIP 52CSHTR>RTB TRIP C

5121-2-PWR I

I I BREAKER RTA BREAKER BYB

- I BREAKER BREAKER I

r I I I TRIPPED TRIPPED BYA TRIPPED RTB TRIPPED TRIP BUS TRIP XTFl TRIP XTF2 TRIP GENERATOR TRIP TRIP 23IZIKV GENERATOR TRIP MAIN TRIP BUS TRIP XFMRS TRIP XTF31. 32 , GENERATOR IA, IB & IC COOLER COOLING MAIN F[ELO GENERATOR BUS TIE ELECTRICAL XFMR HIGH IA,18 & IC XTF(31 &. 32l-ES COOLING TRIP BUS TRIP BUS TRIP BUS TRIP TRIP TRIP BUS TRIP l A NORMAL CIRCUIT STATOR NORMAL PUMP FANS SUPPLY BREAKER BREAKER FAULT EMERGENCY 23121 KV FANS ANO JOA EMERGENCY 108 NORMAL 10B EMERGENCY CIRCUIT XTF4 w 0 INCOMING SWITCH GROUND INCOMING BREAKERS ANO FANS 41M DCB SIDE GCB INCOMING DCB PUMPS INCOMING INCOMING INCOMING SWITCH COOLING BREAKER XES5 PREWARMING

"< w 00 BREAKERS BREAKER BREAKER BREAKER XES4 FANS 64G-PWR "w 0 a

"0 u I T T I a I

VOLT REGULATOR LOCKOUT RELAY l j_B6TTR TRIP N

"'--------+----<~+-------'

B6EX XTF5

  • -- COOLING FANS D D

.L I

TT I

I

+

TO FEEOWATER ISOLATION TO SAFETY INJECTION SYSTEM TO t

TO WESTINGHOUSE REACTOR TRIP LOGIC r---------------------------------------------------------------------------------------------------1t====================-=:::'.===::t==============================~=::~

FEEDWATER SAFETY INJECTION

~--------------- ---------------~~---~

ISOLATION SYSTEM VOLT VOLT REGULATOR REGULATOR TRIP CORE I cd~t2 E RUNWZSPO IOC TRIP PHUSTRP RUNWZSPD IOC TRIP E PHUBTRP NRUNW52G NRUNW52G HOT TRIP HOT TRIP AMSAC EXOEXFL T EXOEXFLT IKl01AI LEGEND:

D TRIPFL T TRIPFL T RUNWN41D RUNWN410 t C OR GATE 1---{x'.}---_Jf ' ~ - - - - - - ,

~

VOLT REGULATOR TRIP D = AND GATE CORE 3 VHZ-TRIP DEL-TRIP

~ = NOT F

GENERATOR BREAKER CLOSED 52XGB MAIN XFMR HI SIDE BREAKER CLOSED 52HSX3 EX-LOI34 EXVHI-1 LP HTR 5A OR 5B OR SA &. GR 6B HI-HI LEVEL LOSS OF 3 OF 3 FEE WATER PUMPS HI-HJ STEAM GEN LEVEL 2 OF 3 OR SI TRAIN

'A' (K621)

STEAM GENERATOR HI-HI OR SI TRAIN "B" AMSAC (Kl01Bl I '-. \

..._ T0=30 SEC.

CONTROL VALVE *1 CLOSED CONTROL VAL VE *2 CLOSED CONTROL VALVE *3 CLOSED CONTROL VALVE *4 CLOSED z = TIME DELAY F

(K6211

= HYDRAULIC LINE

' VALVES CLOSED TRAIN 'A'

>::? VAL YES CLOSED TRAIN 'B'

ELECTRICAL LINE TD

10 SEC.

JJ.

  • 125V DC POWER - ,.....l i = MECHANICAL CONNECTION SUPPLY "B"

- I P5 = I / 2 RANGE)

NEUTRON FLUX (INTERMEDIATE

.---------------- - - ----------------- - ----f--------------,

125¥

-- ABOVE SETPOINT 2 / 2 NEUTRON FLUX (INTERMEDIATE RANGE)

BELOW SETPDINT POWER SUPPLY "A" I

' , ., ,. I P7 = 3 / 4 NEUTRON FLUX (POWER RANGEl ill 1111 fil BELOW SETPOINT

........... ,--. -~

ANO TURBINE SPEED ABOVE 1350 RPM lf---J,-,

I I

  • H--. ............*t1 CHANNEL rHANNEL 2 HANNEL 2 / 2 TURBINE IMPULSE CHAMBER PRESSURE BELOW SETPOINT G 1---- -~--+--... MAIN SHAFT PUMP DISCHARGE PRESS LOW TRIP (2/31 1---_.,I-_J I TRAIN A CUSTOMER TRIPS

+-------- - ---------1---------i-------------------_..___ - - ------+------+---,,+--l-+-----1---1-- - -

3 , ... ,,ANNt:.L 4

2/3 I

2/3 I I PS = 3 / 4 BELOW SETPDINT NEUTRON FLUX (POWER RANGE)

G (EXTERNAL TO EHC SYSTEMI INTERCEPT [NTMD STOP INTERCEPT VVI' JNTMD STOP NTERCEPT V INTM STOP INTERCEPT V INTMD STOP STOP VALVE STOP VALVE STOP VALVE STOP VALVE P10 = 2 / 4 NEUTRON FLUX (POWER RANGE)

HYDRAULIC HEADER PRESS LOW TRIP (2/3) TRAIN B CUSTOMER TRIPS VV *1 CLOSED vv~2 CLOSED "3 CLOSED VV *4 CLOSE01(1,-, *1 CLOSED "2 CLOSED *4 CLOSED LUBE OIL BEARING IEXTERNAL TO EHC SYSTEM) IV-I V "1 CLOSED

[SV-1 "2 CLOSED IV-2 lSV-2 IV-3 VV 3 CLOSED ISV-3

  • 4 CLOSED IV-4 ISV-4 SV-1 SV-2 "3 CLOSED SV-3 SV-4 I I ABOVE SETPDINT HEADER PRESS C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I = 3 I 4 NEUTRON FLUX (POWER RANGE)

LOW TRIP 12/3)

I I TO STEAM - ....- ' BELOW SETPOINT EXHAUST HOOD HIGH TEMPERATURE TRIP (2/3. EACH HOOQl,C----7

- I TO STEAM+---*

DUMP DUMP P-9 = 2 / 4 NEUTRON FLUX (POWER RANGE)

_r- P-9 P-9 ABOVE 50% SETPOINT

-,.lL.l',- IR EACTOR ..,.IU-,-, CRE AC TOR TURBINE SPEED EXTRACTION ABOVE 901/. ABOVE 50%

ABOVE 150 RPM I RELAY DUMP CLOSE POWER) POWER>

VAL VE EXTRACTION EXHAUST VACUUM VALVES ABSOLUTE PRESS~7* ~ - _ J HIGH TRIP 1 l GENERATOR MAIN XFMR HI (2/3. EACH HOO l - BREAKER SIDE BREAKER TRAIN A TRAIN A BY TO TRAIN 'B 1 CLOSED CLOSED LOSS OF STATOR COOLING TRIP ON FAILED RUNBACK ETD TRIP SOLENOIDS - - - - - ETD TRIP HEADER DUMP VLVSC-------7 WESTINGHOUSE REACTOR TRIP 52XGB 52HSX3 (2/3) (2/3) SIMILAR TO 'A' H THRUST BRG WEAR AXCAL POSITION TRIP 12/3) ..._

TRAIN 8 TRAIN B I L---+--+--------------_, H ETD TRIP SOLENOIDS - - - - - ETD TRIP HEADER DUMP VLVSC-------"

MOISTURE SERPARATOR LEVEL HIGH TRIP I 1, ------'+'~-, V I (2/3) (2/3)

I (2/3 EACH MSRl -'\. ""-----------------------.i BEARING VIBRATION HIGH TRIP I I

'II -..

X TD=l5 SEC.

'l-ccc--c-c=-------------------------1,(.

T0=10 SEC.

~

\

JC---~-"

  • VOLT REG LOSS OF VOLT REG PRIMARY &

LOSS OF SECONDARY PRIMARY PTS PTS CORE I/

PRIMARY {(l) ZERO SPEED MISMATCH TRIP

  • CORE 1/

CORE 2 CORE 2 I EMERGENCY

ZERO SPEED MISMATCH TRIP PRIMARY (Q> OVERSPEEO LATCHED TRIPL !EMERGENCY

OVERSPEEO TRIP LOSS OF LOSS OF LOSS OF LOSS OF LOSS OF .~ PRESSURE PRESSURE PRESSURE PRESSURE PRESSURE PSJl?J0A PS100B PS5841 PS5B42 PS5843 PRIMARY

EXCESSIVE ACCEL/DECEL RATE CHG TRIP  ;;:=---CHANNEL 3 I CHANNEL 2 I EMERGENCY (P) EXCESSIVE ACCEL/OECEL RATE CHG TR[P j_ l I ' I o J ., ""r' * ., " J l<D> AND

SPEED DIFFERENCE FAULT TRIP CHANNEL 1 - TRAIN 'A' i TRAIN 'B' VOLT REG MDA VOLT REG MOB VOLT REG MOA VOLT REG MOB MANUAL TURBINE TRIP PUSHBUTTONS (2/2) C - - - - - - - - - " CONT ACTOR CONT ACTOR CONT ACTOR CONT ACTOR VOLT REG !LOCATED BOTH ON MCB AND ON FRONT ST l OPEN OPEN OPEN OPEN TRANSFER CORE 2 CORE 1 CORE 1 I l CORE 2 TO MANUAL CORE I/ CORE 2 OFF-LINE 2/3 ETD TEST TRIP RELAY IETD TRAIN A ANO ETD TRAIN B I PS100X, PS100Y. PS100Z t DETAIL 2 G.E. TURBINE LOGIC ~ CLOSE HEATER DRAIN AND EXRACTION VALVES FSAR Figure 8.3-8 i,---------------------------------*-------------------------------------------------------------------------*----------' TOO~ .5 ~DO 5uEC7~~s:- -_'55 SEC 7 SOUTH CAROLINA ELECTRIC & GAS COMPANY VIRGIL C. SUMMER ttJCLEAR STATION K ~- ELECTRICAL K ,-- ----, REACTOR, TURBINE AND GENERATOR - ' 8 IH/0512011 RHM REVISED PER ECR-50592 AND MGR KW TRIP DIAGRAM \,;'.) 62- ' ECR- 71548 & ECR-50555 GM Ll DESIGN ENGINEERING SCEl[; 1 _.,,-. GBT 1 o sc- cc.,"NY V, C. SUMMER NUCLEAR STATION JElf{JNSVILLE. S. C. ' t ' 7 67/08/02 JMR REVISED PER ECR 50138 MGR scs CHECKEa LE APPROVAL DETAIL 1 ' I ________ I ' 6 62/07/Bl JTS REVISED PER ECR-50378 MGR scs HAOE s. CO-ORDINANCE B-16 10 05/1Jml9 CMS REVISED PER ECR-72331 chk JMM JTS MGR LEK 9 Ul/26m11 RHM REVISED PER ECR-50945D MGR TF SCOLE "'"" E 203 201 10 ND. DATE REVISION " CKO. BY APPROVAL IJlAWING MUM8Ell SHT. ~l'BER REV 1/f'-1'-0 11 ' ' ' 203201-0001 0' 5' 10' 15' 20'

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