ML22194A240

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2 to Updated Final Safety Analysis Report, Figure 8.3-8, Electrical Reactor, Turbine and Generator Trip Diagram
ML22194A240
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 06/27/2022
From:
Dominion Energy South Carolina
To:
Office of Nuclear Reactor Regulation
Shared Package
ML22194A236 List: ... further results
References
22-179
Download: ML22194A240 (1)
v • d • e


Text

17 16 15 14 13 12 1 1 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 FIELD MAIN XFMR XFMR XTF31-ES XFMR XTF31-ES XFMRS XFMR XTF4 XFMR XTF4 XFMR XTF5 XFMR XTF5 MANUAL MANUAL SOURCE RANGE POWER RANGE POWER RANGE OVERPOWER 2 OF 3 LOW UNDER PRESSURIZER STEAM GEN LOW AUTOMATIC MANUAL A DIFFERENTIAL OVERALL LOW SCDE GROUND OVERCURRENT DIFFERENTIAL PRESSURE FAULT RELAY 58.5 HZ FREQUENCY 58 HZ FAILURE BREAKER FAIL HIGH SIDE DIFFERENTIAL FAULT ITF (31 & 32) ES OVERALL D[ff DIFFERENTIAL FAULT DIFFERENTIAL OVERCURRENT REACTOR 'A' TRAIN HIGH FLUX HIGH FLUX HIGH FLUX COOLANT FLOW PRIMARY FREQUENCY REACTOR LOW PRESSURE LEVEL 1 OF 2 & 'A' TRA[N 'A' TRAIN A OVERCURRENT 5IT2-I 87TlM 81-3 llr. 81-4 81-5 & 81-S 87131 PRESSURE PRESSURE TRIP INJECTION SAFETY ClNTERLOCKEO HIGH SETPOINT INTERLOCKED BY LOW SETPDINT.OT IN20F3 COOLANT (INTLK BY P7J LOW FEEDWATER FLOW INJECTION SAFELY SAFETY 87ClM 51NL2 2 OF 2 63 50 BF/Tl 8713 87T4 87T5 5lT5 I OF 2 SIGNAL BY P6 & Pll?JI PL0l LOOPS 2 OF 3 1 OF 2 SIGNAL SIGNAL INJECTION

" 63 03 1 OF 2 2 OF 4 2 OF 3 PUMP BUSSES 1 OF 2 UNTLK BY P7) 2 OF 3 lN 1 OF 3 LOOPS 2 OF 4 8\\X-lA,lB,lC I OF 2 L

GENERATOR XFMR XTFZ-ES XFMR XTF2-ES XFMR XTFl UNBALANCE VOLTAGE FREQUENCY NEGATIVE PHASE XFMR XTF31-ES XFMR XTF31-ES H[ SIDE HI SIDE BREAKER XFMR XTF-31 XFMR XTF31-ES SIMILAR TO XFMR XTF4 XFMR XTF5 XFMR XTF5

  • r.. MANUAL INTERMEDIATE POWER RANGE OVER 20F3LOW UN ERVOL TAGE PRESSURIZER PRESSURIZER LO-LO TRA]N '8' REACTOR TRIPS TRAIN 'B' REACTOR SHUNT DIFFERENT AIL DIFFERENTIAL FAULT HI SIDE 52 HZ LOW SIDE GROUND OVERCURRENT FAILURE CXFMR XTF32-ESl HI SIDE GROUND OVERCURRENT HI SIDE GROUND OVERCURRENT FAULT REACTOR TR[P RANGE HIGH HIGH FLUX TEMPERATURE PRIMARY REACTOR HIGH PRESSURE HIGH LEVEL STEAM SIMILAR TO TRAIN 'A' TRIPS SIMILAR TO PRESSURE NEUTRAL SEQUENCE 46 OVERCURRENT 51NH31 51?JBF /EAl PRESSURE FLUX RATE t. T COOLANT FLOW COOLANT UNTLK BY P7> GENERATOR AS SHOWN TRAIN 'A' 87T2-t OVERCURRENT 81-1 & 81-2 51NL31 5INH4 51NH5 1 OF 2 1 OF 2 IN 1 OF 3 LOOPS PUMP BUSSES 2 OF 3 WATER LEVEL AS SHOWN 87G 63 51NH1 S0G 63.... 2 OF 4 2 OF 3 IINTLK BY PB) 27-lA,IB,lC 2 OF 3 2 OF 3 2 OF 3 L - ' ' I r --P7

.I..I. j_ l.L ~P7 XFMR XTF4 OVERCURRENT I I

  • I........ I I... -

...,_ r - 51T4....J L :*F=---1-----1---+---+---l-----lf------~+- TRIP REACTOR ) "B" TRAIN REACTOR TR[P SEE DETAIL 1 ~---'----"""' COOLANT PUMP BREAKERS....... ( )

' I B TD= TD= XFMR XTF31-ES XFMRS XFMR XTF32-E5 B 96 10 LOCKOUT RELAY XTF3\\ & 32-ES LOCKOUT RELAY I SEC. SEC. OVERALL OIFF XFMR XTF4 XFMR XTF5 LOCKOUT RELAY LOW SIDE LOW SIDE

.L 8ST3l B6T3 8ST32 GROUND *- GROUND OVERCLJRRENT OVERCURRENT 51NL5 I ) ' 51NL4 ENGINEERED SAFETY G2-FEATURES ACTUAT[ON OVERALL BACKUP LOCKOUT RELAY h~us lA,IB & IC G8T 'i:::'.....-~ I "A" TRAIN REACTOR TRIP SEE (wi OWG.1080837 SH.8 t'HASE & GROUND SEE DETAIL 2-----, ~IMS-41-011-8-2)

SSCIM 51BX-1A,1B & IC OVERCURRENT ~--~------------------~

I j_ L

- l BUS l X BUS 10A BUS 10B BUS !DX DIRECTIONAL BUS l X GENERATOR XFMR XTF5 XFMR XTFI MAIN XFMR l FROM XTF5 PHASE &. GROUN[ PHASE&. GOUNO FROM XTF31 OVERCURRENT LOCKOUT RELAY XFMR XTF4 LOCKOUT RELAY PREWARMING LOCKOUT RELAY PREWARMING HIGH SIDE j_

I UNOERVOLTAGE OVERCURRENT OVERCURRENT UNOERVOLTAGE LOCKOUT RELAY 86T5 OVERCURRENT OCB OPEN ROD DRlVE ROD DRlVE ROD DRIVE ROD DRIVE 27-5-IOX 51BX-10A 51BX-1DB 27-31-l X 86B 86T4 86 PWR 50M-PWR BREAKER BYPASS BREAKER

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

(...____,.> I I PREWARMING [NCOMING NORMAL SHUNT SHUNT SHUNT SHUNT C B6GC.... -' OVERCURRENT BREAKERS OPEN 52(SHTR!/RTA TRIP 521SHTRIBYB 52(SHTRlBYA 52CSHTR>RTB C 5121-2-PWR TRIP TRIP TRIP

I '

I -

  • I BREAKER BREAKER BREAKER BREAKER I I I TRIPPED RTA BYB BYA RTB r I I TRIPPED TRIPPED TRIPPED

TRIP BUS TRIP XTFl TRIP XTF2 TRIP GENERATOR TRIP TRIP 23IZIKV GENERATOR TRIP MAIN TRIP BUS TRIP XFMRS TRIP XTF31. 32, TRIP BUS TRIP 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 STATOR NORMAL PUMP FANS SUPPLY BREAKER BREAKER FAULT EMERGENCY 23121 KV FANS ANO JOA EMERGENCY 108 NORMAL 10B EMERGENCY CIRCUIT XTF4 l A NORMAL INCOMING CIRCUIT SWITCH GROUND w 0 INCOMING ANO FANS 41M DCB SIDE GCB INCOMING DCB PUMPS < w BREAKERS INCOMING INCOMING INCOMING SWITCH COOLING BREAKER XES5 PREWARMING " 00 BREAKERS w 0 BREAKER BREAKER BREAKER XES4 FANS 64G-PWR " u a 0

I T T I "

a I

' l j_B6TTR N VOLT REGULATOR LOCKOUT RELAY TRIP "'--------+----<~+-------'

B6EX XTF5

  • -- COOLING FANS D.... D

.L

TT I I I WESTINGHOUSE

+ t TRIP LOGIC REACTOR TO FEEOWATER TO SAFETY TO TO ISOLATION

  • INJECTION SYSTEM FEEDWATER SAFETY INJECTION r---------------------------------------------------------------------------------------------------1t====================-=:::'.===::t==============================~=::~ ~--------------- ---------------~~---~ ISOLATION SYSTEM

REGULATOR VOLT REGULATOR VOLT CORE I TRIP cd~t2 E RUNWZSPO RUNWZSPD E IOC TRIP IOC TRIP PHUSTRP PHUBTRP NRUNW52G NRUNW52G EXDEXFL T HOT TRIP HOT TRIP AMSAC LEGEND:

EXOEXFLT IKl01AI TRIPFL T TRIPFL T RUNWN41D RUNWN410 t D C OR GATE

1---rx:1---_Jf '~------, = AND GATE

~

VOLT D REGULATOR TRIP CORE 3 VHZ-TRIP ~ = NOT EX-LOI34 EL-TRIP GENERATOR MAIN XFMR HI SIDE EXVHI-1 BREAKER BREAKER VALVE *1 CONTROL VAL VE *2 CONTROL VALVE *3 CONTROL VALVE *4 CONTROL CLOSED 52XGB CLOSED -----. HI-HJ STEAM GEN CLOSED CLOSED CLOSED CLOSED z = TIME DELAY 52HSX3 LP HTR 5A OR 5B LOSS OF 3 OF 3 LEVEL 2 OF 3 STEAM GENERATOR F ORSA&GR6B FEEDWATER OR SI TRAIN HI-HI OR SI AMSAC F HI-HI LEVEL PUMPS 'A' (KS21) TRAIN "B" (Kl01Bl I '-. \\..._ T0=30 SEC.

(K6211 = HYDRAULIC LINE

' VALVES CLOSED TRAIN 'A'

= ELECTRICAL LINE

>::? JJ.,.....l i VALVES CLOSED TRAIN 'B' TD=

10 SEC. - SUPPLY "B" POWER = MECHANICAL CONNECTION

  • I P5 = I / 2 NEUTRON FLUX (INTERMEDIATE RANGE)

ABOVE SETPOINT

.---------------- - - ----------------- - ----f--------------, --2 / 2 NEUTRON FLUX <INTERMEDIATE RANGE)

POWER 125¥ I BELOW SETPOINT

SUPPLY "A" I P7 = 3 I 4 NEUTRON FLUX (POWER RANGEl

',.,,. BELOW SETPOINT ill 1111 fil AND TURBINE SPEED lf---J,-, I *H, 2 / 2 TURBINE IMPULSE CHAMBER ABOVE 1350 RPM I --............ --. *t1............ -~ CHANNEL rHANNEL 2 HANNEL PRESSURE BELOW SETPOINT G 3,...,,ANNt:.L 2/3 2/3 G 1---- -~--+--... MAIN SHAFT PUMP -----+--------- - ---------1---------i------- ------ ------_.. ___ - - ------+------+---,,+--l-+- --- --1-- - -4 DISCHARGE PRESS 1---_.,I-_J TRAIN A CUSTOMER TRIPS I I I PS = 3 / 4 NEUTRON FLUX (POWER RANGE)

LOW TRIP (2/31 I (EXTERNAL TO EHC SYSTEMI BELOW SETPDINT INTERCEPT [NTMD STOP JNTMD STOP NTERCEPT V INTM STOP INTERCEPT V INTMD STOP STOP VALVE STOP VALVE STOP VALVE STOP VALVE.1. ' P10 = 2 / 4 NEUTRON FLUX (POWER RANGE)

HYDRAULIC HEADER PRESS LOW TRIP (2/3) TRAIN B CUSTOMER TRIPS VV *1 CLOSED V "1 CLOSED INTERCEPT VVI' "2 CLOSED vv~2 CLOSED "3 CLOSED VV 3 CLOSED *4 CLOSED VV *4 CLOSE01(1,-, *1 CLOSED "2 CLOSED "3 CLOSED *4 CLOSED ABOVE SETPDINT LUBE OIL BEARING IEXTERNAL TO EHC SYSTEM) IV-I [SV-1 IV-2 lSV-2 IV-3 ISV-3 IV-4 ISV-4 SV-1 SV-2 SV-3 SV-4 I I HEADER PRESS C---------------------------- I = 3 I 4 NEUTRON FLUX (POWER RANGE)

LOW TRIP 12/3) I I TO BELOW SETPOINT TO STEAM -.... - '

EXHAUST HOOD HIGH TEMPERATURE TRIP (2/3. EACH HOOQl,C----7 - I DUMP STEAM+---* P-9 = 2 / 4 NEUTRON FLUX (POWER RANGE)

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

-,.lL.l',- IR E ACTOR..,.IU-,-, CRE AC TOR ABOVE 50%

ABOVE 150 RPM I TURBINE SPEED EXTRACTION ABOVE 901/.

RELAY DUMP VAL VE CLOSE POWER) POWER>

EXHAUST VACUUM EXTRACTION ABSOLUTE PRESS~ 7*~-_J VALVES (2/3. EACH HOOOl HIGH TRIP 1 l GENERATOR MAIN XFMR HI

- BY BREAKER SIDE BREAKER TRAIN A TRAIN A 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)..._ L---+--+--------------_, H

TRAIN 8 TRAIN B I ETD TRIP SOLENOIDS ----- ETD TRIP HEADER DUMP VLVSC-------"

MOISTURE SERPARATOR 1, ------'+'~-, I LEVEL HIGH TRIP I V (2/3) (2/3) I (2/3 EACH MSRl -'\\. ""~----------------------.i

'II -.. TD=l5 SEC. ~

  • VOLT REG BEARING VIBRATION I 'l-ccc--c-c=-------------------------1,(. \\ HIGH TRIP I X T0=10 SEC. JC---~-" 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 ((l> OVERSPEEO LATCHED TRIPL

!EMERGENCY

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

SPEED DIFFERENCE FAULT TRIP J CHANNEL 1-i TRAIN 'B' TRAIN 'A' 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 2 CORE 1 CORE 1 TO MANUAL l CORE I/ OFF-LINE 2/3 ETD TEST TRIP I CORE 2 IETD TRAIN A ANO ETD TRAIN B I RELAY PS100X, PS100Y. t PS100Z DETAIL 2 G.E. TURBINE LOGIC ~ -- CLOSE HEATER EXRACTION VALVES DRAIN AND FSAR Figure 8.3-8 i,-----------------------------------------------------------------------------------------------------------*----------' TDD~ ~DO .5 5uEC77 ~~s:- -_'55 SEC 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 ' - ' Ll DESIGN ENGINEERING ' \\,;'.) 62- ' ECR-71548 & ECR-50555 GM SCEl[; 1 _.,,-. GBT 1 S. C. ' t ' 7 H7/0Bf02 JMR REVISED PER ECR 50138 MGR scs o sc-cc.,"NY V, C. SUMMER NUCLEAR STATION JElf{JNSVILLE. HADE CHECKEa LE APPROVAL DETAIL 1 ' ' I ________ I 6 62/07/Bl JTS REVISED PER ECR-50378 MGR scs JTS MGR s. LEK CO-ORDINANCE B-16 10 05/1Jml9 CMS REVISED PER ECR-72331 chk JMM 9 Ul/26m11 RHM REVISED PER ECR-50945D MGR TF SCOLE "'"" E 203 201 10 NO. 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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