ML17289A663

Proposed TS 4.8.2.1 Re Battery Load Profiles

ML17289A663
Person / Time
Site:	Columbia
Issue date:	06/25/1992
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17289A661	List: ML17289A660 ML17289A663
References
NUDOCS 9206300225
Download: ML17289A663 (2)

Text

~

' ~ CONTROLLED COPY ~

ELECTRICAL POWER SYSTEMS 4

- "SURVEILLANCE RE UIREMENTS Continued

d. At least once per 18 months, during shutdown, by verifying that either:

1. The battery capacity is adequate to supply and maintain in status all of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> "'b"'PERABLE

~ l'l'~'l Divisions 1, 2 and 3 when the battery is subjected>to a

~7'or (AH~. Coz-f~l battery service test, or l992 A

2. The battery capacity is adequate to supply a dummy loaders~~

(Minimum amperage) while maintaining the battery terminal voltage greater th or equal to 21 volts for the %24-volt battery, 105 volts r the 125-volt battery, and 210 volts for the 250-volt b er a d 105 vol s or 125-volt Oiv. 3 b t er l s.J, o~ e~ 1~ p $ e )og,g4 c'tg )Ace ck4l'Mg l5$ c ~ 0 0 +' p4+' + (L'o+P) AatA l05% ~ cA c'cg44v 4 A4 ( 'cksatf Q.OcAJ 7 'lsss41 I ~Q oaktl:O~

BATTERY (VOLTS/DIV) SECONDS SECONDS SECONDS MINUTES MINUTES MINUTES MINUTES 0-6 6" 15 15" 60 1-2 2-60 60-119 119-120 Tl ii 80-lA/"18 (t24V/Oiv 1) 24 24 24 24 24 24 24 80-2A/-28 (124V/Div 2) 24 24 24 24 24 24 24 81"1 (125V/DIV 1) 570 260 260 180 180 180 276 81"2 (125V/OIV 2) 400 230 230 185 185 185 241 82-1 (250V/OIV 1) 1320 1320 520 505 480 444 574 HPCS DUTY CYCLE SECONDS SECONDS SECONDS 0-13 13-20 20-60 81-HPCS (125V/DIV 3) 70. 3 75. 6 15. 6 15. 6 15. 6 16. 0 16. 0

e. At least once per 60 months during shutdown by verifying that the battery capacity is at least 80X (83.4X for the 250 Volt battery) of the manufacturer's rating when subjected to a performance discharge test. At this once per 60-month interval, this performance discharge test may be performed in lieu of the battery service test.

f. At least once per 18 months during shutdown performance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85K of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10K of rated capacity from its average on previous performance tests, or is below 90K (93.4X for the 250 V battery) of the manufacturer's rating.

fN SM(Pp lq ~f le@.cr t'OZ- 9t - o~4, 4)~,l 4 <9'Il WASHINGTON NUCLEAR - UNIT 2 3/4 8-13 Amendment No.

( mossaomi mos~s PDR ADOCK 05000397 , I PDR

f'4

~ ~

P ~

s

" > s 4

~~ i 1

t 4 1 4

I

'e ~ ~ ~ I 4 s h ~ V 4 I

414'l l 1I 1

, ~ '" E l