ML19317G014

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RO-76-16:on 761206,diesel Generator a Tripped Off Line 25 Minutes Into 1-h Surveillance Test When Decreasing Speed by Control Room Switch.Caused by Switch Failure.Defective Switch Replaced
ML19317G014
Person / Time
Site: Rancho Seco
Issue date: 12/20/1976
From: Colombo R, Eisenhuth F
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317F941 List:
References
NUDOCS 8002210713
Download: ML19317G014 (1)


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LCENSFE LCENSE EVENT NAME LCENSE NUMBF A TYPE TYPE l cl Aln ls is l1l l ol ol-jo j o lo l o l oj-l ojo l l4 l1 l1 il l1 l l ol ll 7 09 14 15 25 26 30 31 32 CATEGORY T

S DOCKET NUMBEA EVENT CATE f*EPORT DATE hCON'T l M lI l lL l

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$7 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION Q l Diesel generator "A" tripped of f line 25 minutes into a one-hour survei: lance test l -

7 89 80 y Q l when decreasing speed by the control Roon switch. The Master Specialties series 2100 I 7 89 80 Q l Roto-Tellite switch failed closed. The "B" generator was available enroughout the l

7 89 60 '

@ l repair and retest.

(R0 76-16)

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7 89 80 bI I,-

7 09 muE 80.

$v5ffM CAUSE COMPONENT COMPONTNT CODE CODE COMPONENT CODE SUPPUER MANUFACTUAEA VIOLATCN Q l El E l ]

l ClK lT lB l R l Kl lN l lX l9 l9 l9 l lN]

y 7 09 10 11 12 17 43 44 47 48 r.)

CAUSE DESCA;PTION

$ l The switch fniled closed.

no when ebn nnona enn mnn,11v na inc e na an -nonra l'

7 89 00 l 4 peed continued to dron until the unit l}

trinned.

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The dnfn-efen cuienh une vnninena-80,

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09 80 FACO?v METHOD OF STATUS

% POWER OTHER STATUS DISCOVERY DGCOVERY DESCAioitCN Lej l 11o Io i I N^

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t 7 8 9

10 12 13 44 45 46 80 FORM OF AC T.VITY CONTENT of PELE AEFD OF REL.E ASE l l

l NA AMOUNT OF ACTIVITY LOCATCf4 CF RELEASE i

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10 11 44 45 80 PEDSONNEL EXPOSUAES NUVUER TYPE DESCRiPT;0N

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NA l-7 00 11 12 80 PERSONNEL INJUil__

j NtNatn DESCn.p? ION l ol cl o l In l

ti 0 11 12 60.i Of fGITE CONSEQUENCES

$ D!ininal to None l

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? de 80 LOSS OR DAMAGE TO FACitfiY f l t s cr ec sCnci.,N b [2]

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' ou 10 60 PUBLICITY Local newspapers notified December 15. 1976 l

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