05000272/LER-1981-055-03, /03L-0:on 810521,power Lost at Station Power Transformers 12 & 22.Caused by Design Deficiency in Unit 3 Generator Breaker.Power Restored

/03L-0:on 810521,power Lost at Station Power Transformers 12 & 22.Caused by Design Deficiency in Unit 3 Generator Breaker.Power Restored

ML20005B078
Person / Time
Site:	Salem
Issue date:	06/19/1981
From:	Espey J Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20005B075	List: 05000272/LER-1981-055, Forwards LER 81-055/03L-0.Detailed Event Analysis Encl 05000272/LER-1981-055-03, /03L-0:on 810521,power Lost at Station Power Transformers 12 & 22.Caused by Design Deficiency in Unit 3 Generator Breaker.Power Restored
References
LER-81-055-03L, LER-81-55-3L, NUDOCS 8107060289
Download: ML20005B078 (1)

LER-1981-055, /03L-0:on 810521,power Lost at Station Power Transformers 12 & 22.Caused by Design Deficiency in Unit 3 Generator Breaker.Power Restored

Event date:
Report date:
2721981055R03 - NRC Website

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LICENSEE EVENT REPORT CONTROL BLOCK: l l

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8 9 LICENSEE CODE 14 15 LICENSE NUVSER 25 26 LICENSE TYPE JO

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60 61 DOCKET NUVBER 68 69 EV ENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h l 0 l 2 l l Action Statement 3.8.1.la was entered at 0836 hours0.00968 days <br />0.232 hours <br />0.00138 weeks <br />3.18098e-4 months <br /> on May 21, 1981, due to the loss

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Iof number 12 and 22 Station Power Transformers.

This loss of power caused a partial l

o 3 l blackout of both Unit 1 and 2.

T1.is occurrence constituted operation in a degraded l

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3 31 40 41 42 43 44 47 33 CAUSE DESCRIPTION AND CORRECTIVE ACT80NS h g lIoss of power was caused by design deficiency in the No. 3 Unit Generator Breaker.

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[ Power was restored and Action Statement 3.8.1.la was terminated at 0918 hours0.0106 days <br />0.255 hours <br />0.00152 weeks <br />3.49299e-4 months <br /> on i i I

i;7; lMay 21, 1981.

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8107060289 810619 J.

. Espey PHONE:

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PDR ADOCK 05000272 S

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