05000325/LER-1980-040-03, /03L-0:on 800417,during Normal Operation,Diesel Generator 2 Svc Water Supply Valves Failed to Open When Diesel Was Started.Caused by Burned Switch Relay Coil Wire in Tachometer Pack.Tachometer Pack Replaced

/03L-0:on 800417,during Normal Operation,Diesel Generator 2 Svc Water Supply Valves Failed to Open When Diesel Was Started.Caused by Burned Switch Relay Coil Wire in Tachometer Pack.Tachometer Pack Replaced

ML19323E382
Person / Time
Site:	Brunswick
Issue date:	05/08/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19323E377	List: 05000325/LER-1980-040, Forwards LER 80-040/03L-0 05000325/LER-1980-040-03, /03L-0:on 800417,during Normal Operation,Diesel Generator 2 Svc Water Supply Valves Failed to Open When Diesel Was Started.Caused by Burned Switch Relay Coil Wire in Tachometer Pack.Tachometer Pack Replaced
References
LER-80-040-03L, LER-80-40-3L, NUDOCS 8005230469
Download: ML19323E382 (2)

LER-1980-040, /03L-0:on 800417,during Normal Operation,Diesel Generator 2 Svc Water Supply Valves Failed to Open When Diesel Was Started.Caused by Burned Switch Relay Coil Wire in Tachometer Pack.Tachometer Pack Replaced

Event date:
Report date:
3251980040R03 - NRC Website

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8 60 63 COCnETNuvsER 68 69 EVENT DATE 74 75 REPORT CATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h Iol2l l During normal plant operations, the no. 2 diesei eenerator' service warm-enon1v I

Io l3 l l valves failed to open when the diesel was started. After the diesel was runnine.

l I o I 41 l the " Diesel Fail to Start" annunciator came in.

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I i l o I l The tachometer pack, 2 DG2 TP-6567. was found inocerative due to a burned switch li li l 1 relav coil wire. This tachometer oack closes contacts for service water sucolv i

valve's opening, and the " Diesel Fail to Start" annunciator, should the diesel fail l

[,i2; i 1,l3l l to start following a start signal. The tachometer pack was replaced with a new one l

1 i 14 I I from stock and was tested satisfactory. This. is considered an isolated event.

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LER ATTACDfENT - RO #1-80 40 Facility: BSEP Unit No. 1 Event Date: April 17, 1980 All remaining air pax style tachometers will be calibrated during the overlap period of Unit Nos.1 and 2 refueling outages. A preventative maintenance schedule has been arranged to calibrate these cachometers pacs once per refueling outage.

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