ML23241A441

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7 to Updated Final Safety Analysis Report, Figure 7.2-1, Drawing 495872, Sheet 2, Sheet 1, Functional Logic Diagram Reactor Trip Signals
ML23241A441
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 05/25/2023
From:
Pacific Gas & Electric Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML23241A052 List: ... further results
References
DCL-23-044
Download: ML23241A441 (1)


Text

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TRAI N A REACTOR SHUNT TRIP SIGNALS MANUAL REACTOR TR!P SIGNAL !SflEET 31--

-V-,

MANUAL SAFETY 1NJECTIONS !GNA L (SHEET8)

SEISMIC TR IP SIGNAL (SHEET 18 >

MANUALTRIPSIGNAL

!SHEET3>

NEUTRON FLUX TRIP SIGNALS

<SHEET3)

PRIMARY COOLANT SYSTEM TRIPS1GNA LS<SHEET5>

PRESSURIZER TR I P SIGNALS

!SHEET6)

STEAMGENERATORTRIPSlGN.t.LS

!SHEET7l LOGIC TRAIN A REACTOR TR !P SIGNALS

{

SOURCE RANGE, HIGH FLUX C INTERLOCKED BY P - 6 & P - 10 JNTERHEOIATE RANGE, HIGH FLUX <!NTERLOCK EO BY P-10 1----------------<

{

HIGH FLUX, LOW SETPOINT I INTERLOCKED BY P-10)

POWER RANGE HI GH FLUX, H!GH SE TPOJNT--------------------'

HIGH FLUX RATE----------------------,

OVERTEl'PERATURE "'-T OVERPQ,i'ER 1'.T --------------------------.1 LOW PRIMARY

{ LOW FLOW !N ANY I OF 4 LOOPS< I NTERLOCKED BY P-8 COOLANT f"LOW LOW FLOW OR REACTOR COOLANT PUl-'P BREAKERS OPEN IN ANY 2 OF 4 LOOPS I INTERLOCKEO BY P-7)

UNOERVOLTAGEIINTERLOCKEOBYP-7)

UNOERFREOUENCY I INTERLOCKED BY P - 7)---------------------'

{

HIGH PRESSURE LOW PRESSURE ! INTERLOC KED BY P-7) - ----------- ------------!

HIGH LEVEL ( !NTERLOCKEO 8Y P-7 l

{ LOW-LOW STEAM CENERATOR WATER LEVEL SAFETY INJECTION SIGNAL I SHEET 81 AUTOMATIC SIGNAL------------------------

--.1 TURBINE TRIP SIGNA L (SHEET 16)

LOW AUTO STOP OIL PRESSURE OR ALL STOP VALVES CLOSEO (JNTERLOC KEO 8Y P-9)----------<

NEUTRON FLUX TR I P SIGNALS ISHEET3l PRIMARY COOLANT SYSTEM TRIPS !CNALS(SHEET5>

PRESSURIZER TRIP SIGNALS

<SHEET6l LOGIC TR AIN B REACTOR TRIP SIGNALS

{

SOURCE RANGE. HIGH FLUX !INTERLOCKED BY P - 6 &- P - 10 INTERMEDIATE RANGE, HIGH FLUX ! IN TERLOCKED BY P-10)----------------<

{

HIGH FLUX, LOW SETPOINT ( INTERLOCKED BY P-10)

POWER RANGE HIGH FLUX, HIGH SETPOlNT--------------------'

KIGH FLUX RATE------------------------,

OVERTEHPERATURE D.T OVERPOWER D.T------- --------

LOW PRIMARY

{ LOW FLOW IN ANY I OF LOOPS ( INTERLOCKED BY P -8 COOLAN T FL OW LOW FLOW OR REAC TOR COOLANT PUMP BREAKERS OPEN IN ANY 2 OF 4 LOOPS ( INTERLOCKED BY P-7)

UNOERVOLTAGE !INTERLOCKED 8Y P-Tl UNDERFREOUENCT ( I NTERLOCKED BY P-1)------

{

HI GH PRESSURE LOW PRESSURE (INTERLOCKEQ BY P - 7) - ----------------

HIGH LEVEL ( INTERLOCKED 8Y P-7) n~:~r°~~ERATOR TR !P SIGNALS

{LOW - LO"' STEAM GENERATOR WATER LEVEL SAFETY INJECTION SIGNAL (SHEET 8l AUTOMAT IC SIGNAL.-------------------------,

TURBINE TRIP SIGNAL I SHEET 16J LOW AUTO STOP O!L PRESSURE OR ALL STOP VALVES CLOSED ( INTERLOCKED BY P-9J----------<

SEISMICTRIPSIGNAL I SHEET 181 TRAIN B REACTOR SHUNT TR ! P SIGNALS MANUAL REACTOR TRIP SIGNAL (SHEET 3)---

-oif, MANUAL SA FETY lNJECTlONS IGNAL!SHEE T8J 2 I\\.\\**

OHETEOLOWfEEO\\/HDl >LOWPDl OC2*E **2 e7 R V, I TRAIN A LOGIC TRAIN B ROD DRIVE SUPPLY ONE LI NE DIAGRAM fu\\_

Ir\\____,,,......__

260V AC BUS

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~~~~1- -1 0 ----fc\\ -~

)s21RTB

)52/BYB

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I '"°"l RODORIVEPO;IERSUPPLY

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TO SAFETY INJECT ION BLOCK LOG IC( SHEETBJ TOFEEOWATER ISOLAT ION LOGIC <SKEET 13l REACTOR TR I P SIGNAL FORTURBINETRIPCSHEET 16)

TOSTEAMOUMP LOGIC I SHEET 10 )

REACTOR TR!PSIGNAL FORTURBINETRIPCSHEET 161 TO FEE0;1ATER JSOLATJON LOGIC <SHEET 13l TO SAFETY INJECT ION BLOCKLOGlClSHEET B)

NOTES 52/RTA 52/BYA REACTOR TRIP SWITCHGEAR I, TRIPPING EITH ER REACTOR TRIP BREAKER S2/RTA OR S2/RTB REDUNDANTLY OE-ENERGIZES THE ROD DRIVES, ALL FULL LENGTH CONTROL RODS ANO SHUT00;1N ROOS ARE THEREBY RELEASED FOR GRAVITY INSERTION INTO THE REACTOR CORE.

2. NORHALREAC IN SERVICE

~~~~~gTr~~T REACTOR TR!

TRIPPED BY THES I ~

THE OTHER TRAIN. ONLY 3, ALL CIRCUITS ON TIHS SHEET ARE IYQT REDUNDANT BECAUSE BOTH TRAINS ARE SHO\\<IN, OPEN/CLOSEOINOICATlONFOREACHTRlPBREAKERANO EACH BYPASSBREAKER IN CONTROL ROOM, SHEETNUMBERSREFERTOTHEREFERENCENUMBERSBELOW, 6, WHENEVER A PROCESS SIGNAL IS USED FOR CONTROL ANO IS DERIVED FROM A PROTECTION CHANNEL, !SOLAT!ON ~ST BE PRO~IOED.

7. HHS DRA;l!NG ILLUSTRATES THE FUNCTIONAL REOUJREMENTS OF THE REACTOR CONTROL AND PROTECT!ON SYSTEM. THIS ORA;1JNG DOES NOT REPRESENT ACTUAL HA RO;IARE IMPLEMENTATION. FORHAR0;1AREll-f'LEMENTATION, REFERTOTHEAPPLICABLESCHEMATIC DIAGRAM!$>.

REFERENCES WE DWG PG&E DWG I. HINCTIOOAL LOGI C DIAGRAM INDEX ANO SYMBOLS. __________ __

___________ _________ 5653074 -1 __ ____ 49S87 1

2. FUNCTIOOAL LOGIC DIAGRAM REACTOR TRIP SIGNALS ____________ __ ______________ ____ 5653074 - 2_ _____ 495872
3. FUNCTIOOAL LOGIC DIAGRAM NUCLEAR INSTR AND MMIIJAL TRIP SIGNAL$. ______ _____ ___ __ 5653074-3 __ ____ 49S873
4. FUNCTIOOAL LOGIC DIAGRAM NUCLEAR INSTR PERMISSIYES AND BLOCKS ____________ __ ___ _ 5653074*4 ______ 495B74 S.FUNCTIOOALLOGICO IAGRAMPRIMA.RYCOOLANTSYSTEMTR! PSlGNALS. ________ ____ _ __ ___ 5653074-5 ___ ___ 49587S 6, F~CTIOOALLOGIC DIAGRAM PRESSURIZER TRIP SIGNALS.* _________________________ __ 5653074-6 ______ 495876
1. >UNCTIOOALLOGIC 01AGRAH$TUHGENERHOR TR I P SIGNALS

_______________________ _ 5653074-7 ___ ___ 495877

8. FUNCTIONALLOGICO IAGRAHSAFEGUAROSAC TUATIONSIGNALS

_ ___ _ 495878

9. FUNCTIOOAL LOGIC O!AGRAH ROD CONTROLS ANO ROO BLOCKS

_____ ___________________ __ 5653D74 - 9_ _____ 495879

10. >UNCTIONAL LOG I C OlAGRAHSTEAMOUMfl CONTROL ________________

__ ___________ _____ 5653D74-l0 _____ 495880 II, >UNCTIOOAL LOGIC DIAGRAM PRESSURIZER PRESSURE A~

LEVEL CONTROL *------ ---

____ __ 5653074-11 ____ _ 49S881 12 *.UNCTIONAL LOGIC Ol AGRAMPRESSURIZER HEATfR CONTROL

_________________________ _ 5653D74 -12_ ____ 495882 13,,UNC TIONALLOG!CO!AGRAMFHOIIATERCONTROLANO ISOLH!ON, ____________________ __ $65307 - 1 3 ___ _ 495883 14..UNC TIONALLOG!CO!AGRAMF"EEOWATERCONTROLAND ISOLH ION ____________________ ___ S653074 -1 4 ____ 495884

15.,UNCTIONAL LOG!( DIAGRAM AUXILJARY F"EEOWATER P\\Jl'l'S STARTUP ____ ________________ _ S653D74-15 ___ _ 495885
16. FUNCT IONAL LOGIC O{ACRAM TURBINE TRIPS, RtJ,IBAnS&- SIGNALS.~----------- --------- S653D74 - 16 __ __ _ '!5886 17.

fUNCTI ONALLOGICDI AGRAH AHSACSIGNALS

. _______________ ______________ __ _____ _ $653074 -17 __ ___ 495887 18, FUNCTIONAL LOGIC OIAGRAHSHSMIC TRIP,_____

_ _____ 8759071 _______, 4'!5888 19, 1'1.lNCTIONAL LOGIC DIAGRAM DIGITAL Fl/CONT SYS INPUT SIGNAL VALIOUION _______ ____ S653074 -1 8_ ____ 495889

£0. FUNCTIONAL LOGIC OIAGRAMDIGI TAL FW CONT SYS FWFLOWCONTROLLER&- Cv DEMA.ND __

  • __ 5653074 - 19_ ____ 495900 21, FUNCTIONAL LOGIC DIAGRAM DIGITAL rw CONT SYS CONT vcv SEO I TRACKING LOG](_ _____ 565307~-20_ ____ 49590I 22.FUNCTIONALLOGICOIAGRAMDI GI TALFWCONT SYSSIGNALSELECTORLOGIC _____

___ __ ___ 5653D14*21. ____ 495902 23.

>UNCTIONO IAGRAHREACTOR-TURBI NE GENERATORPROTECTION

____ ___ ___________ _ 500800 24, SCKEMA.TJC OIAGRUI REACTOR TRIP BREAKERS

__ __ 44 1489 NUCLEAR SAFETY RELATED UNIT 2 I l

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FUNCT!ONALLOGlCOlAGRAM REACTOR TR I P SI GNALS fOIIIJNlll* *DDSl(.IMOl.ff'l~(C Rt*

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