05000324/LER-1981-007-03, /03L-0:on 810115,Group 1 Isolation Signal Received on Reactor Protection Sys Trip Channel B.Caused by Failure of Relay Coil,Model P/N 12HFAS1A49F Due to Insulation Breakdown.Coil Replaced

/03L-0:on 810115,Group 1 Isolation Signal Received on Reactor Protection Sys Trip Channel B.Caused by Failure of Relay Coil,Model P/N 12HFAS1A49F Due to Insulation Breakdown.Coil Replaced

ML19345F596
Person / Time
Site:	Brunswick
Issue date:	02/10/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19345F594	List: 05000324/LER-1981-007, Forwards LER 81-007/03L-0 05000324/LER-1981-007-03, /03L-0:on 810115,Group 1 Isolation Signal Received on Reactor Protection Sys Trip Channel B.Caused by Failure of Relay Coil,Model P/N 12HFAS1A49F Due to Insulation Breakdown.Coil Replaced
References
LER-81-007-03L, LER-81-7-3L, NUDOCS 8102180495
Download: ML19345F596 (1)

LER-1981-007, /03L-0:on 810115,Group 1 Isolation Signal Received on Reactor Protection Sys Trip Channel B.Caused by Failure of Relay Coil,Model P/N 12HFAS1A49F Due to Insulation Breakdown.Coil Replaced

Event date:
Report date:
3241981007R03 - NRC Website

text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77)

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8 60 El DOCKET NuuBER t,d 69 EVENT DATE J4 75 REPORT DATE 80 EVtNT DESCRIPTION AND PROBABLE CONSEOUENCES h lo i2l lDuring normal plant operation a Group I Isolation sienni vas. rocnived on the "B" RPS l

o;3; l trip channel. All reactor operating parameters remained normal during and following l g o ;4; l this event. This evedt did not af f ect the health or saf ety of the public.

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33 37 40 43 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS l l0; lThe "B" RPS trip channel relay coil failed due to an insulation breakdown.

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Relay coil was replaced.

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