ML23241A347

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.2-1, Drawing 495845, Sheet 1, I & C Functional Diagram Primary Coolant System Trip Signals

ML23241A347
Person / Time
Site:	Diablo Canyon
Issue date:	05/25/2023
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML23241A052	List: DCL-23-044, 7 to Updated Final Safety Analysis Report, Chapter 9, Figure 9.4-10, Drawing 512904, Revision 15, Mechanical Air Monitoring Technical Support Center and Post-Accident Sampling System Air Flow Diagrams ML23241A053 ML23241A054 ML23241A055 ML23241A056 ML23241A057 ML23241A058 ML23241A059 ML23241A060 ML23241A061 ML23241A062 ML23241A063 ML23241A064 ML23241A065 ML23241A066 ML23241A067 ML23241A068 ML23241A069 ML23241A070 ML23241A071 ML23241A072 ML23241A073 ML23241A074 ML23241A075 ML23241A076 ML23241A077 ML23241A078 ML23241A079 ML23241A080 ML23241A081 ML23241A082 ML23241A083 ML23241A084 ML23241A085 ML23241A086 ... further results
References
DCL-23-044
Download: ML23241A347 (1)

Text

l UND ER VOL T AGE RCP BUSS ES UNO ERFREOUENCY RC P BLI SSES OVERTEMPERA TURE I::,. T OVERPOWER 6 T R(ACTOATR!P REAC TOR lRIP

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OV ER TE MPEAA TURE fiT OVERPOWER 6. T AUXI L IARY FE£DWAl[R PUMPS

<SH EE T 1$1 REACTOR TRIP REAC TOR TRIP

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TO START TUR BINE RUNBACK AN D BLOCK ~~o:,;,~~6R:~~L MANUA L

<SH[ET9 , 16 l NOT REDUNDANT LO -L O TAvG LOOP 3 P-12 TOF[EDWATER lSOLATlON

!SHEE T IOl <SHEET 131 REACTOR TRJP

($fl[ ET2l REACTOR TRIP

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REFERENCES NOTE S:

I. FUNCTIONAL LOGIC DIAGRAM l NOEX AND sne 01.s _____________ _ ____ ______ ______ _56530H

• l _______ 495841 T F OR UNDERVOLT AGE REL SHOULD BE FUNCTIONAL LOGIC O! AGRAH R(ACTOO TA ! P SIGNAL S ______ _ __ 5653DH - 2 _______ 495842 70t . THE MA XIMUM ALLO DETECTOR Y( WITHlHEADJUST LAY SET TO FUNCTIONAL LOGICO!AGRA H NUCLEAR INSTR ANOKANUAL TR1PSIGNAL$ __ ____ _____ __ ______ 5&53DH

• L _____ 495843 EN RE A CH I NG THE T VALUE ANO FUNCTIONAL LOGIC DI AGRAM NUCL EAR INSTR PERMISSIVES AND BLOCkS ____________________ 56S3DH - - -- - -- 4956 44 THE SIGNAL lO T OR lRIP CIRCUITRY FUNCTIONAL LOGIC D!AGRAH PRIHA RY COOLANT SYST EM TRIP SIGNALS __ ___ __ __ ___ _________ 5653D74 - 5 _______ 495845 EXCEED 0 . 2 SEC 6 . FUNCTlONALLOGI C OIAGRAMPRESSUAIZERlR!PSICNALS ___________________________ __ ___ 56Sl01

• 6 ___ ___ 495846 2. RE ACTOR COOLANT PUr-f'S I !, 2 ARE ON. BUS I .

REACTOR COOLANT PUMPS 3 !, 4 ARE ON BUS 2 .

7. FUNCTIONALLOGICOlAGRA M STEA M GE NERATOR TRIPSICNALS ____ ______ __ ________________ 5 6 S3D7 -7_ _____ _ 495847

3. THE SE TPOINT or THE UNOERfREOUENCY RELAYS SHOULD FUNCTIONAL LOGIC OIACRAH SAFECUAROS ACTUATION SIGNALS ___ __ __ _ ____ _ ______ ____ ___ 565 3074 - 8 _______ 495848 BE AOJUSUBL 52 CPS AND 59CPS.

FUNCTIONAL LOGIC DI AGRAM ROO CONTROLS ANO ROO BLOCKS __________________ ____ ______ _ 5653074 - 9 __ __ _ 495849 THE MAXl"'-IM DETECTOR TIME DELAY ( INCLUDI NG 10 . FUNCTIONAL LOGICOlAGRAM ST[AH llUWCONIROL __ _____ ___ __ __ ____ ____________________ 5553074 -1 0 ______ 4958SO THE AOJUSTA B BETWEEN REACHING THE SEl-POINl VALUE ANO PA THE SIGNAL TOTHETR!PCIRCUITS II. FUNCTIONAL LOGIC OlAGRAM PRESSUllZER PRESSURE ANO LEVEL CONTROL _ _ __ ___ ___ __ __ Sf,5307 4

• 11 _____ 495851 SHOULD NOT E 0. I SEC.

12. FUNCTIONAL LOGIC OIAGRAM PRESSl111ZER HEATER CONTROL ______________________ ___ ____ 565307 -1 2_ ____ 4 95852 4 . THE DELAY B ET WEEN THE

13. FUNCTIONALlOGJCOlAGRAH FEEOWATERCONTROI.ANO ISOLATJON ____ ___ __ ________________ 5653074-13. ____ .495a53 TI ME IVE A TRIP SIGNAL A NO I

• FIJNCTIONAL LOGI C DI AGRAM FEEOW4TER CONTROL ANO ISOLATION __ __ __ ____ _ _____ ____ _____ 56530 74 - 14 ______ 495854 THE TRIPPEOANO PASSEO ON T REACTOR TRIP LOGIC

15. FUNClJONAL LOGlCOIAGRAM AUXl l l ART FEEDWA TEA PU~SSTARTUP _______________________ 565307 4 - 15 ** ___ 49 5B55 SHOU

16. FUNCT!ONALLOGICOlAGRAH IUlBI N(TRI PS, RUNB ACKSt.SIGNJ\LS __ _______ 565307 4 - 16 _____ 495856 5 . SHEET NU~ERS REFE R TO THE REFE RENCE NU~ERS RELOW.

17. HJNCTIONAL LOGIC OlAGRA H AHSAC S I GNALS__ _________ _____ ___ ___ _ ___ _____ 5&53074 - 17 __ ___ , 495857 6. "1l EN EVER A PROCESS SIG NAL IS USED FOR CONTROL ANO IS 18 . FUNCT IONALLOG JC OIACRAM S( I SHICTRIP ** ___ __ ____ ____ _____________________________ 8759077 __ __ ___ _ 495858 DERIVED FROM A PROTEC T ION CH ANN EL . ISOLATION MJST BE

19. FUNCTIONAL LOGIC DIAGRAM DIG I TA L FW CONT SYS I NPUT SIGNAL VAlJDAT I ON __ __ _______ __ 5653D74 *18 _____ , 495859 PROVID ED .

7. THIS DR AWING ILLUSTRATES THE FU NC TlONAL REOUIREMENIS 20 . FUNCTIONAL LOGIC OUG RAH OIGITAL FW cmn SYS r w FLOW CONTROLL{R t, c,, DEHANQ _______ 5653D74 - 19 . ____ 4 9 5860 or THE REACTOR CONTROL ANO PROTECTION SYSTEM. THIS 2 1. FUNCTICINALLOGICOIAGRAH DIG I TALF W CON T SYSCONIVCVSED t. TRACKI NGLOGIC ________ s653074 - 20 . ____ 495B61 DRA WI NG DOES NOT REPRESE NT ACTUAL HARDWAR E ll'f'LEMENTATION.

22 . FUNCTlONAl LOGIC DIAGRAM DIGITAL r w CONT SYS SIGNAL SELECTOR LOGIC __ ____ ___ ____ 5653074 - 21 _____ 495862 FOR HARDWARE IHPl(MENTAT I ON, REFER TO THE APPLICABLE A SCHEMATIC.

23.0RAWINGINOEXSOLI O STA TEP!IOTECTIONS YS!NTERCONNECTIOO,SCHEM.01AGRAM ___ ___ __ IQBD442

• 1 __ ___ 458862 19 4' T T