05000369/LER-1981-058-03, /03L-0:on 810418,while in Mode 3,lower Containment High Temp Alarm Was Received in Control Room Indicating That Units C & D Feeder Breakers Tripped.Caused by Incorrectly Adjusted Unit D Magnetic Overload Switch.Breaker Repla

/03L-0:on 810418,while in Mode 3,lower Containment High Temp Alarm Was Received in Control Room Indicating That Units C & D Feeder Breakers Tripped.Caused by Incorrectly Adjusted Unit D Magnetic Overload Switch.Breaker Replaced

ML20005A069
Person / Time
Site:	McGuire
Issue date:	05/18/1981
From:	Ouellette R DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20005A067	List: 05000369/LER-1981-058, Forwards LER 81-058/03L-0 05000369/LER-1981-058-03, /03L-0:on 810418,while in Mode 3,lower Containment High Temp Alarm Was Received in Control Room Indicating That Units C & D Feeder Breakers Tripped.Caused by Incorrectly Adjusted Unit D Magnetic Overload Switch.Breaker Repla
References
LER-81-058-03L, LER-81-58-3L, NUDOCS 8106290326
Download: ML20005A069 (1)

LER-1981-058, /03L-0:on 810418,while in Mode 3,lower Containment High Temp Alarm Was Received in Control Room Indicating That Units C & D Feeder Breakers Tripped.Caused by Incorrectly Adjusted Unit D Magnetic Overload Switch.Breaker Replaced

Event date:
Report date:
3691981058R03 - NRC Website

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evswr cascaimon Amo racsasta couacuencas [TTT1 i While in Mode 3,. initial fuel oading, a lower containment high temperature alarm was received in the Control Room. The feeder breakers EI for the containment ventilation air handlins; units C and D had i

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@ l1 causa oescaimca Ano ccaneenve Acnons gl The magnetic overload switc on Unit D breaker was adjusted incorrectly and it could not be readily determined what caused the unit C breaker to trip. The Unit C breaker was reset and the unit D breaker was replaced.

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