ML23241A055

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.2-1, Drawing 495842, Revision 3, Sheet 1, Functional Logic Diagram Reactor Trip Signals

ML23241A055
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 ML23241A087 ML23241A088 ML23241A089 ML23241A090 ML23241A091 ML23241A092 ML23241A093 ML23241A094 ML23241A095 ML23241A096 ML23241A097 ML23241A098 ML23241A099 ML23241A100 ML23241A101 ... further results
References
DCL-23-044
Download: ML23241A055 (1)

Text

SEI SM I C TRIP SIGNAL I SHCET 18l MANUA L TRIP SI GNAL I SHEET 3 1 PR JMARY COOlA NT SYSTEM TR I P S! GNA'._S I SHEET 51 PRESSURI ZER TRIP S I GNALS

<SHEET 6)

STEA M GENERATOR TRIP SI GNAL I SH EET 7)

SAFETY I NJECTION SIGNAL ISHEET 8 )

TURB ! NE TR I P SI GNA L I SHEET 16 1

~NUAL TRIP SIGNAL <SHEET 3)

NEUTRON FLUX TR I P SIGNALS

<SHEET 3 )

PRI MARY COOLANT SYSTEM TRJ P SIGNALS 1 SHEET 5l PRESS,JRIZER TRIP SIGNA LS (S/l[ET6 1 STEAM GENERATOR TRIP SIGNAL <SHEET 7 1 SAFEH I NJECT ION SI GNAL I SHEET 8)

TURBINE TR I P S1GNAL I SHEET 16 l SE ISMI C TR!P SI GNAL <SHEET 18)

TRA ! N A REACTOR SHUNT TR IP S ! GNALS LOGI C TRA I N A REACTOR TR I P SIGNA LS I NTERMEDIATE RA NGE, HIGH FLUX I INTERLOCK ED BY P-10)--------- ------_.

{

SOURCE RA NGE, HI GH FLUX ( I NTERLOCKED BY P-6 !. P-10

{

HIGH FLUX, LOW SETPO JNT I JN TERLOCX[O BY P-10)

POWER RANGE HIGH FL UX, HI GH SETPOINT- ---- --------

- -----.J HI GH FLUX RHE---------- -----------

-,J OVERPOWER t:.T --------------

LOW PR I MARY

{ LOW FLO\\./ !N ANY I OF 4 LOOPS ( INTERLOC KED BY P-8 l

OVERTE MPERATURE c. T COOLANT FLO\\./

LOW FLOW OR REACTOR COOLANT PUMP BREAKERS OPEN I N ANY 2 OF 4 LOOPS ( I NTERLOCKED BY P-7)

UNDERVOLT AGE <I NTER LOC KED BY P-71----------------------J UNDERFR EOUENCY I I NTERLOCKED BY P-7)---------- --- ---------.J

{

HlGH PRESSURE LO.,r PRESSURE I INTERLOC KED BY P-7)--------- -------------J HIGH LEVEL I INTERLOCKED BY P-7l LOW - LO.,r STEAM GENERATOR WA TER LEVEL AUTOMATIC S! GNAL - ----- --- -----------------l LOW AUTO STOP OI L PRESSURE OR AL L STOP VA LVES CLOS ED 1 l~ TERLOCK EO BY P-9J -

---

l LOGIC TRA I N B REACTOR TRI P SIGNALS

{

SOURCE RA NGE, 1-l!GH FLUX <I NTERLOCKED BY P-6 g, P-10 I NTERMEDJ AH RA NGE, HI Gl-l FLUX ( IN TERLOCKED SY P-101-------- --------.J FLU X, LOW SETPO I NT \\ I NTERLOCK,:O BY P-1 0) ------ --------'

POWER RA NGE FLUX, HI GH SETPOJNT - ---------------

FLUX RA TE------- ---- ------ ------l OVERPOWER t:.T -------------- ---

LOW PRIMARY

{LOW FLOW JN ANY I OF 4 LOOPS ( I NTERLOCKED BY P-81 I

OVER TEMPERATURE

6. T COOLANT FLO.,r LOW FLO\\./ OR REA CTOR COOLANT PUMP BREAKERS OPEN IN ANY 2 OF 4 LOOPS ( INTERLOCKED BY P-7)

UNOERVOLTAGE t I NTERLOCKED BY P-7)--------------------

....J UNDERFR EQUENCY I I NTERLOCKED SY P-7J------ ------------

-.J

{

HIGH PRESSURE LOW PRESSURE ( I NE RLOC KEO BY P-7)------- --------- ------J HI GH L EVEL I I NTERLOCKED BY P-7 1 LOW -LO',/ STEAM GENERATOR WATER LEVEL AUTOMAT IC SIGNAL----- ------------- --- -----l LOW AUTO STOP OIL PRFSSURE OR ALL STOP VALVES CLOSED (IN TERLOCKED BY P-9J--- -----

---

l TRAIN B REACTOR SHUNT TR I P SIGNALS MANUAL REl<CTOR TR!P SIGNA L ($ HEE "" 3 J ---..J,~

MANUl<l SAFETY I NJEC T I ON SIGNAL I SHEET 8)

LOGIC TRAIN A TRAIN B

!!i 8 ROD OR I VE SUPPLY ONE LI NE D ! AGRAM r"::\\__

~,-....,

260V AC BUS v,~,-~,~~ 0----'4~~! -~1 0.----~,-....,~

) s21RTB

)s21 BYB

, -c SC~

l

<NOTE "l ROD DRIVE po.,rER SUPPL Y

) s21RTA

) s2/BYA TO SAFETY INJECT I ON BLOCK LOG IC ( SH[(T 8J TO FEEDWA TER I SOLATION LOGIC (SHEET 13)

REACTOR TRI P S I GNA L FOR TURB I NE TR IP (SHEET 16l TO STEAM DUMP LOG JC I SHEET 10 1 TO STEAM DUMP LOGJC ( SHEET 10)

REACTOR f RJ P SIGNAL FOR TURBI NE TRIP <SHEET 16l TO FEEDWA TER ISOLATJON LOG I C !SHEE T 13)

TO SA FETY INJEC TION BLOCK LOGIC I SHEET 8l ROD DR I VE POWER BUS lNOTE 11 NOTES I. TRIPPING EIT HER REACTOR TR I P BREAK ER 52/RTA OR 52/RTB REDUNDANTL Y DE - ENERGIZES THE ROD DRIVES. ALL FULL LENGTH CONTROL RODS AND Sl-!UTOO'o'N ROOS ARE THEREBY RELEASED FOR GRAVITY I NSERT ION INTO THE REACTOR CORE.

2. NORMA L REAC TOR OPERAT ION !S TO BE WITH REACTOR TR I P BREAKERS 52/RTA AND 52/RTB IN SERVICE AND BYPASS 52/BYB WITHDRAWN.

DURING TEST, ONE BYPA UT IN SERVICE ANO THEN THE RESPECTI VE REACTOR TR S! NG A SIMULATED REACTOR TR I P SIGNAL I Tl-!E REAC TOR Will NOT BE TRIPPED BY THE SIMULATED SIGN KER I S CONTROLLED FROM THE OTHER TRAIN. ONL Y ONE REACT TESTED I.T A TI ME.

3. ALL CIRCUITS DN HHS SHEET ARE NOT REDUNDANT BECAUSE BOTl-l TRAINS ARE SHOlr<N.

10 REACTOR TRIP SWITC HGEA R OPEN/C LOSED I ND I CAT ION FOR EACl-l TRIP BREUER AND EACH BYPASS BREAKER IN CONTROL ROOM.

SHEET NUMBERS REFER REFER ENCE NUMBERS BELOW.

6. WH ENEVER A PROC ESS CONTROL AND I S DERIV ED FROM A PROTECT I ON CHA NNEL,

ISOLAT ION 1. TH IS ORA\\o' I NG I L LUSTRA TES THE FUNC TIONAL REQUI REMEN TS OF THE REA CTOR CONTROL AND P'<OTECT I ON SYSTEM. THI S DRA\\.l lNG DOES NOT REPRESENT AC TUAL HARDWARE I MPLEMENTATJO'l. FOR HARDWARE I MPLEMENTATJON, REFER TO THE APPLICABLE SCl-!EMATIC DIAGRAM($).

REF ERENCES WE OWG PGH OWG I. FUNCTIONAL LOG IC DIAGRAM INDEX AND SYMBOLS __

_ ______________________ 5653074 -1

2. FUNCT IONAL LOC JC DIAGRAM REACTOR TR!P SI GNALS _

_ _________ 5653074 - 2 _____ 495842

3. FUNCTIONU LOG IC DIAGRAM NUCLEAR INSTR ANO "1ANUAL TRIP SIGNALS _________________ 5653074-3 _____ 495 843

4. FUNCTIONAL LOGIC DIAGRAH NUCLEAR I NSTR PERMISS!VES AND BLOCKS ___________________ 5653DH - ~ __ ___ 495844 S, FUNCT IONAL LOGIC DI AGRAH PRJMARY COOLANT SYSTEM TRlP S! GNALS__

_ ___ 5653074-5_ ___ __ 495845

6. FUNCTIONAL LOGIC DI AGRAM PR£SSIJR!ZER TRJP S!CNAL$ ___ ______ _____________________ 56530H- LOG I C _______ 5653074-20 _____ 49586 1

22. FUNCTIONAL LOG I C DU GRAI-! OI GI H L FIi CONT SYS SI GNAL SELECTOR LOG I C______

_ __ _ 5653074 - 21 __ ___ 495862

23. FUNCT ION DIAGRAM REACTOR-TURBINE -GENERAT OR PROTECT!ON__

_ __________ 500825

24. SCHEM.,\\TI C DI AGR.1.1-1 REACTOR TR I P BREM ER$.________ __

_ __ 4376 10 NUCLEAR SAFETY RELATED

,~. QCT l~}EIA!cn~IRI lr!RI d~r'@,!\\~[NJAILlsj I I I I I er 1]

1°1,;)'1°1 '"'*~:"* "~" Q ~ o5:l [fl ~N UN IT I FUNCTIONAL LOGIC DIAGRAM REACTOR TRIP SIGNALS OIABLO CANYON 10