05000317/LER-1978-058-03, /03L-0 on 781218:during Surveillance Testing on No 11 Diesel Generator,Generator Room Ventilation Fan Failed to Start.A B Phase Overload Had Tripped & Was Reset.Tests on Fan Showed Normal Current & No Mechanical Damage

/03L-0 on 781218:during Surveillance Testing on No 11 Diesel Generator,Generator Room Ventilation Fan Failed to Start.A B Phase Overload Had Tripped & Was Reset.Tests on Fan Showed Normal Current & No Mechanical Damage

ML19259A758
Person / Time
Site:	Calvert Cliffs
Issue date:	01/04/1979
From:	Carroll J, Romney K BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19259A755	List: 05000317/LER-1978-058, Forwards LER 78-058/03L-0 05000317/LER-1978-058-03, /03L-0 on 781218:during Surveillance Testing on No 11 Diesel Generator,Generator Room Ventilation Fan Failed to Start.A B Phase Overload Had Tripped & Was Reset.Tests on Fan Showed Normal Current & No Mechanical Damage
References
LER-78-058-03L, LER-78-58-3L, NUDOCS 7901100267
Download: ML19259A758 (1)

LER-1978-058, /03L-0 on 781218:during Surveillance Testing on No 11 Diesel Generator,Generator Room Ventilation Fan Failed to Start.A B Phase Overload Had Tripped & Was Reset.Tests on Fan Showed Normal Current & No Mechanical Damage

Event date:
Report date:
3171978058R03 - NRC Website

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60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND'PADBAtlLE CONSEQUENCES h FirTTI IDuring perfomance of surveillance testing on 11 diesel generator the genera-l 10 i31 l tor room ventilation fan failed to start at 0928.

11 diesel generator was l

imediately shutdown. At 0940 a "B" phase overload was found to be tripped l

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F6 T'irl and was reset. The fan was started and 11 diesel satisfactorily tested at i

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12 diesel generator and two ties with the'offsite transmission network O

s I remained operable throughout this event. LERs 77-3 (U-1) and 77-23 (U-2)

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