ML21305A652

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6 to Updated Final Safety Analysis Report, Figure 7.2-1, Sheet 31 of 36, Drawing 495856, Revision 11, Sheet 1, I & C Turbine Trips, Runbacks & Other Signals Functional Logic
ML21305A652
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 10/11/2021
From:
Pacific Gas & Electric Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML21306A142 List: ... further results
References
DCL-21-074
Download: ML21305A652 (1)


Text

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TLJRBII.E STE,Afvf GEI\.I Al1SAC AC-LJATIOIJ ST[,AII G[I\I P-4 0\/ERSPEED HI-HI LEVEL OR S I S I GIJ AL HI-HI LEVEL OR SI REAC-OR TRJ::J

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P-9 i SHll I 4 I----~ RcDUCE LOAD REFERENCE AT 200%/11 I hi PULSil,IG GEI\IERA,TOR PROTECT I 011 J\IOT RECUIIJAIIT SIGI\IA,LS TO REACTO~ TRIP i'SHFFT ?'1 REFERENCES (NOTE 8) WE DWG PG&E DWG I, FLJJ.,CT I *Jl!AL LOGIC 0 I AGRAII I IJOEY AIID S 'HBOLS ---------------------------------------------------------- 5653074-1 __________ 49584 I AU1ILIAR1 TO  ?

Lo FUl,CT I Jl!AL LOGIC 0 I AGRAH REilCTOR TR IP SI G*IALS ------------------------------------------------------ 5653074-2 __________ 495842 BUS GEl*lcRl,TOR FUI\CT I JIIAL LOGIC OIAGRAJ,1 l*IUCLEAR ll!S-R .AID *Ai!UAL TRIP SIGIIALS 5653074-3 495843 TRAIIS FER TRIP 3' 4' FUl'.CT I Ol'IAL LOGIC OIAGRAl1 NUCLEAR INS-R 0 E~NISSIVES AND BLOCKS 5653074-4 495844 B 5' FUl'CTIOl'IAL LOGIC 0 I AGRAII PR I I IA RY COCILAIIT SY STEl1 TR IP SI Gl'IAL S -------------------------------- 565307 4 -5 __________ 4 9 584 5 6, FLJJ.,CT I *Jl!AL LOGIC 0 I AGRAII PRESSURIZER TR IP SI GllALS ------------------------------------------------ 5653071-6 __________ 'I 958 'I 6 NOTES 7' Fl/1,CT I Jl!AI I OG IC nlAGRAH STFAH GFlffRATOo TRIP SIGl!AI S 565jn74-7 4q'i847 8' FUl,CT I OIIAL LOGIC DIAGRAM SAFEGUARDS AC-'~ATIOI! SIGl!ALS 5653074-8 495848 0 I, Tf-FSF SIGl.,/AI S ll*i,JICATF T-,F Cl OSll!G OF THF STOP VAi VFS, FUl'.CT I Ol'IAL LOGIC OIAGRAII ROD COIITROLS A*ID ROD BLOCl*.S 5653074-9 495849 "3c Lf) w 9' s "0 Q)

I O, FUl'CTIOIIAL LOGIC 0 I AGRAII STEAII DUIIP CCIITROL --------------------------------------------------------- 5653074-1 0 ________ 495850 L0 2, n= UNDANCY IS IliOICAT[D IN G[GAnos TO wincou1n[N[NTS ONLY, (ll II, FLJJ.,CT I Ql,IAL LOGIC OIAGRAII PRESSURIZER FRESSU"E All LEVEL COIITROL ___________________________ 5653071-11 ________ '195851 sq-3, DELETED I 2, FUl,CT I OIIAL LOGIC 0 I AGRAII FRESSUR I CER HE.ATER COl*ITROL -------------------------------------------- 5653074-1 2 ________ 495852 OLD4 OLD~

I 3, FIJI* CT I OIIAL LOGIC OIAGRAII FEEDWATER COJ*.1-RO_ .Al*ID ISOLATIOl*I 5653074-13 495853 4, Gcl*.IERATOR IIOTO~Il*!G PRCTECTI::JII SHOULD '!OT DEFEAT THE -HIRTY OLD~

CUTL I HE SECOND DELAY, THE 30 SECOllO T!Nc DELAY S OE 0 EATEO IF BEARING OIL I 4, FIJI CT I OIIAL LOGIC OIAGRAH FEEOWATER co1,1-RO_ .All ISOLATIOII 5653074-14 495854 OLD~

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PRESSURE IS LO-LO AFTER LOSS OF AUTO STOP OIL F~ESSURE. I S, FUI CT I Ol*IAL LOGIC 0 I AGRA1,1 AUi IL !ARY FEED WA TEo PUHPS STARTUP ---------------------------------- 5653074-1 5 ________ 495855 I 6, FIJI CT I Ol'!AL LOGIC 0 I AGRAl*I TURB I IIE TR I PS, RIJll3ACJiS & SI Ci'IALS ----------------------------------- 5653074-16 ________ 495856 5, WcSTINGHOUSE STEAN TURBINE DIVISION REQUIRES THE 30 SECOND Tll~E 5653074-17 I7 FUICTIOl!AL LOGIC DIAGRAII AIISAC SIGl!ALS 495857 DELAY -o BE REDUl!DANT, O~E TIMER IS CONNECTEC TO THE TRAIN 'A' OUTPUT OF o

T-,E PROTECTION LOGIC SYSTEM AND THE OTHER TIMER IS CONNECTED TO THE I 8, FIJI* CT I OIIAL LOGIC DIAGRAM SE!Sfl!C TRIP 8759077 '195858 TRAIN 'B' OUTPJT, THE TI~ER OUTPUTS ARE WIREC SO THAT EIT-,ER W LL ACTUATE I 9, FIJI CT I OIIAL LOGIC OIAGRAH [,IGITAL Fl CCIIT SYS ll*IPUT SIGIIAL VALIDATIOII 5653074-18 49'i8'i9 A GENERATOR TRIP, 20, FUICTIOIIAL LOGIC OIAGRAl1 DIGITAL FW CCIIT SYS FW FLOW COl!TROLLER & Cy OEl,IAIID _________ 565 30 7 4 - I 9 ________ 4 9 5 86 0 6, I f-l "Al'ilJ" LOGIC Al\llJ I Hl ,ASSOC A I llJ PHlSSUHl S\ l I CHlS , 6.J/ 18 2I, FIJI CT I Ol~AL LOGIC OIAGRAl1 DIGITAL FW CCNT SYS CONT VCV SEO & TRACKll,G LOGIC ___________ 5653074-20 ________ 49586 I AND 63/AST! NUST BE TESTED PERICDICALLY, WHILE ON LINE AT 220 FUICTIOl!AL LOGIC DIAGRA11 DIGITAL FW CCNT SYS SIGNAL SELECTOR LOGIC 5653D74-21 495862 POWER, WITHOUT PLANT TRI", TEST VALVES AND TEST LIGHTS ARE 2 3, FIJI* CT I OIi OIAGRAi'I - REACTOR - TURBINE - GENE"ATOR PROTECTIOIJ 500825 REQUIRED TO PROVIDE THOROUGH TESTING AND TO VERIFY PRESSURE SWITCH CCNTACT STATUS, 24, ATWS HITIGATIOII SiSTEfl ACTUATION CIRCU:TRY iA~SACi 6002434 25, SCH E *I AT I C D I ,AG R1,1,1 TUR B I f I E COIHR OL _______________________________________________________________________________________________ 4 3 7 S5 I 70 Tf-E AIISAC LOGIC IS l!C*T REDUIIDAl,JT Sll!CE THE SAIIE 11,IPU-s ARc USED FC*R THE LC*GIC Of VOllP 'A' Al*IU VOllP 'cJ' iSll Plf, I /1, I IS SIGl'*IAL Ol~IPIJIS APl UUPLICAlllJ fiJP 26, I IIT E'i COWIE CT I 111~ 1N I R I 11 G DI AG RAl *I ___________________________________________________________________________________________________ 5 6 3 2 2 4 - 2 4 INPUT -o EACH TURBINE TRIP CIRCUIT, ISOLATIO~ DEVICES ARE REOU RcD BETWEEN THE NOil-iE Al*ISAC CIRCUITS ANJ THE TURBIIJE TRIP CIRCJITS, R. Sf-FFT 1*!111 RFRS ~FFFR T~ T-,F PFFFRFl*ICF \JI/IIRFRS RF OW.

'0 9, Wf-EIIEVER A PROCESS SIGNA_ IS USED 0 0R CONTROL AND IS DcRIVED FRO~ A PROTECTION N A c-,AJ.]l*llL, ISOLAIIOII IIUSI cJl cHOVIUlU, 10, Tf-IS DRAWING I_LUSTRATES THE FUNCTIONAL REQUIREMENTS OF Tf-E REACTOR CO~TROL NUCLEAR SAFETY RELATED w' ANO PROTECTION SYSTEII. THIS DRAWING DOES NOT RE 0 RESENT ACTUAL HARDWARE 0 IH,*L[l*[l,JTATIOII, ,ori 11Ar1DWAr1[ [lil'L[H[l*!TA-101,1, r1[1[r1 TO TII[ Ar,*L CABL=

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