ML17130A308

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6 to Updated Final Safety Analysis Report, Appendix J, Identification-Resolution of AEC-ACR and Staff Concerns, Figure J.4.1
ML17130A308
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/06/2017
From:
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML17130A259 List: ... further results
References
Download: ML17130A308 (10)
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Text

0.020,..-------------------------------

ROD DROP ACCIDENT MAXIMUM CONTROL ROD WORTH WITH SINGLE OPERATOR ERROR FOR VARIOUS OPERATING STATES AT BEGINNING OF LIFE WITH ROD SEQUENCE CONTROL SYSTEM 0.015 ROD SELECTION ERROR

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ROD WITHDRAWAL ERROR CORE AVERAGE POWER (%1

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ci ci AVERAGE MODERATOR DENSITY 19m/eel 20 40 60 80 100 PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT ROD DROP ACCIDENT MAXIMUM CONTROL ROD WORTH WITH SINGLE OPERATOR ERROR AT BOL WITH RSCS FIGURE J.4.1

0.020,....-----------------------------_,,

ROD DROP ACCIDENT MAXIMUM CONTROL ROD WORTH WITH SINGLE OPERATOR ERROR FOR VARIOUS OPERATING STATES AT THE MOST REACTIVE POINT IN CORE LIFE 16600 MWd/TI WITH ROD SEQUENCE CONTROL SYSTEM 0.015 100 80 ROO WITHDRAWAL ERROR 60 40 20 50% ROD DENSITY ROD SELECTION ERROR o~....._....._....

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8 lr 0.010

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AVERAGE MODERATOR DENSITY Igm/eel CORE AVERAGE POWER (%)

PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT ROD DROP ACCIDENT MAXIMUM CONTROL ROD WORTH WITH SINGLE OPERATOR ERROR AT MOST REACTIVE POINT IN CORE LIFE (6500 MWd/T) WITH RSCS FIGURE J.4.2

)

RIC COMPANY PHILADELPHIA ELEC~ POWER STATION OTTOM ATOMI PEACH B UNITS 2 AND 3 S REPORT UPDATED FINAL SAFETY ANALYSI

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TY'tII' J\\A.L-OU'l' 0"

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~I CK DIAGRAM OF SCHEMATIC BLORE EXPOSURE RSCS F~~5~~ MWd/T FIGURE J.4.3a

)

185 ROO POSITIONS

& ALARM STATUS LIGHT ISOLATOR

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POSITION PROBE TYP OF 185 RPI CAB f

EE CORE DISPLAY 4 ROO DISPLAY BYPASS SWITCH LIGHTS 185/4 APPROXIMATELY I

PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT TO

~CRD MANUAL CONTROL SYS Bl Al A2 B2 C

RELAY MODULES t

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.---11 It--------..;;;.;~

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SELECT 185 WIRES ROO SELECT PANEL RSCS BLOCK DIAGRAM FOR CORE EXPOSURE <6500 MWd/T FIGURE J.4.3b

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K DIAGRAM OF SCHEMATIC BLOORCE EXPOSURE Cs FOR C RS

>6500 MWd/T TRIC COMPANY PHILADELPHIA ELEC C POWERSTATION OTTOMATOMI PEACH B UNITS 2 AND 3 S REPORT UPDATED FINAL SAFETY ANALYSI I

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A'lMM FIGURE J.4.4a

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185 ROD POSITIONS

& ALARM STATUS LIGHT ISOLATOR POSITION PROBE TYP OF 185 RPI CAB CORE DISPLAY 4 ROD DISPLAY

.Ir BYPASS SWITCH 4

Power Permissive Signal LOGIC-RSC LIGHTS 185/4 APPROXIMATELY

...._..,..._...:-~--Power Alarm Signal SEQUENCE WITHDRAWALI INSERTION SELECT PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT TO

~CRD MANUAL CONTROL SYS B2 Bl A2 Al t

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RELAY MODULES SELECT 185 WIRES I

ROD SELECT PANEL RSCS BLOCK DIAGRAM FOR CORE EXPOSURE >6500 MWd/T FIGURE J.4.4b

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CQ'ITIDL roo SroCK L~ coas READY FOR DROP DRIFT I ALAA\\1 :>1af OPERATTVE COLLETT FL-JGERS CN+1ED IN (lIT J.1()S

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(X)LLETT 1 PISfOI'J STUCK WI1HDRAWAL SIGNAL PRESENT ron WOImI MWIMIZER PERMITS EX-TRALIIm OF SELECfED CO,'J'TRi:1L roo G),ITROL ROD 1 DRIVE t.lJVE ABNORMALLY

.----....0"'""""'----1 ron CONHOL SEQUEN-CER SYSTEM PERMITS EXTRACTI 1::1>1 OF SELECfED CONfROL IROD OPERATOR CamlL"fED WITI1DRAWAL IEXTRACTION OF bUT OF SEQUENCE

~ONTROL ROD DRIVE loURING STAR1'UP OPERA1OR SELECfS A'J CUT OF SEQ.

CD.HroL roD o

Means all inputs must be present for the result to take place.

OPEAAl'OR IGNORES A.fY SYMPTCM OF l.w..fU,~CfIQ\\j EXTRACfIo.~

OF M CUT OF S~UE:~CE Co.'1TIDL ROD DRIVE AT POWER ATTAaIM5~T WELDS FAIL 1

Q MEOiANICAL FAILURE OF TIfE CO~TROL Ron

-rnm'l{OL ROD VELOCITY LIMITER CASTL'JG FAIU:;

SPUD TIiREAffi STRIPPED COUPLING SOCKET BREAKS I

Ill~DEX 'lUBE BREAKS I

mUPLLJG SPUD U'JSCREWS CQ\\1TROL ROD SEPARATED Flu.1 OO'ITR:>L R:>D DRIVE IMECHAi~ICAL FAILURE L-J lHE DRIVE LL'1E I

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LOCKL~G BA,\\lD BREAKS ALL SIX SPUD FINGERS BREAK THREJ\\IYS O:J CCUPLLJG SPUD DISE'J-GAGED

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U..WETECfED FAILURE 10 QJUPLE illN1IDL IROD m mTVEo REED 5WIT(}f FOR OVER-TRAVEL FAILS OPE>1

,...--..------------------0....-------------.

CONTR:>L ROD IS SnJCK U NEAR FULL OR FULL I.~

POSITIQ~

REED SWITOi FOR RED LIGHf uN WCATIm 48 FAILS CLOSED REED

~"WITaI RlR POSITIOiJ L~DICATIo.~ OF LOCATIO-J 48 FAILS CWSED 1...--~--.ilI~I~----1 c::IFUE~*~L~a~iA.~'1~N~EL-RJEL afAN:-JEL A LOOSE OB-II'lI:cn~N-=:ITR:>~L-~R:>]D,...

INtAR Q)~TROL NEAR COATIllL JECT Ei~TERS BEC(}.fES ROD \\'b\\RPS ROD SHIFTS QIA.'OO:L A.~D DISfORTED

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LOCATIU~

BLOCKS IT UN<XXJPLING 1 Q..r------I1TESf FAILSt-I--;:;;;::::~::I;:__

CONTROL ROD NEVER muPLED WITH CONTROL I~---~

l RODOOVE POSITIo.~

L~DI -'IOPERATOR FAILS' OPERA11JR

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CATJR ERRD.i-1m TEST FOR IG.'iORES

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/SPUD FI:'JGERS11":S--KE~-WE:.....ID-L.--_-:"-------'-~~-~-Ip-J~-~'iF~J;I

~~Q~.~;F IDl) STUCK IN BINT LOCKI~G DECDUPLE PLUG r------~...

{EED PROPER SIG'JAL POSITIO.J

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.Jar RECEIVED JIJ W&MG BY REED LOCATIO.~

SWITaIES I

Means only one of the inputs nust be present for the resurt. to take place.

PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT FAULT TREE MODEL OF A CONTROL ROD STUCK IN CORE READY FOR A DROP FIGURE J.4.5

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ROD STUCK VE.S ROD DROPS Y£S COL.O ST~RTUP

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(8 )( IO-I!5) ~

(

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l 10*9.1'10-5 )

\\NO HOT STARTUP "e.§ @

(8" 10-18

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( 7 " 3 l ~O lO*.

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(.114 >\\NO PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT REACTOR STATES USED IN THE ANALYSIS OF THE CONTROL ROD DROP ACCIDENT FIGURE J.4.6

1435 1035 425 c.l/""

350 call...

IlOD IlOllI'II ftUlCIft til IICUIl PlAIt 1lO. It, PAILIII

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PUlL 'IllS 0CC1IUDCI*

)U~ call..

15'"'

(1.42111110.31)

(1.UllxlO* 36)

)415 call..

1200 (7..lIalO:~~)

(7.111110

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>425 call...

1150 n,5I1alO:~~)

(1.5111110

)

)425 call...

1460 (4.93xll(~~)

(4.931110

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375 call1lll 1075 (3.241l10:~:)

(3.24.10

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(1I."10:~:)

(11."10

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(2.5RIl1O::~)

(2.511xlO

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(1.71l10:~~)

(1.71110

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(.395xlO:~:)

(.3951110

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(2.5..tO::~)

(2.5"10

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(0) 100 730 11115 ItO c.lI...

350 c.l/...

135 e.l/...

..25 c.l/llll

(.726) 400 call...

800 265 c.l/...

440

~1ih~

310 call...

750 270 call..

410

(.655)

(.915) 225 call..

375 160 call..

(0) 115 call,,",

(2.4xlO:~~)

(7.4xl0

)

-::r~:::":~.::~:: ~'=-=~:~~~l"\\;~':~*l.laer 1Ia1, aM r...wr......r R.fera to 'ro.....Ult' witll PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT PROBABILITY ANALYSIS OF CONTROL ROD DROP ACCIDENT FIGURE J.4.7

PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 UPDATED FINAL SAFETY ANALYSIS REPORT OFF-SITE EFFECT OF ROD DROP ACCIDENT FIGURE J.4.8

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