ML19210C446

LER 79-040/03L-0:on 791012,Balser Voltage Regulator Board Showed Signs of Having Overheated Resistor in Voltage Feedback Circuit.Cause Undetermined.Board Completely Replaced

ML19210C446
Person / Time
Site:	Calvert Cliffs
Issue date:	11/06/1979
From:	Bauer E, Heibel R BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19210C445	List: ML19210C444 ML19210C446
References
LER-79-040-03L-01, LER-79-40-3L-1, NUDOCS 7911140279
Download: ML19210C446 (1)

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8 60 61 OOCK ET NUVB E n 68 69 EVENT 0 ATE EVENT " OESCRIPTION AND PACB A9LE CCNSECUENCES h 3  :  ; hile investicatino d21 diesel cenerator voltace reculation 3 3 i oroblers, it was necessary to take #21 diesel cenerator out of I J 4 l service from 1240 to 1435, October 12, 1079, to recair the voltace i J i s i i reculator. The acerability of the receinino A.C. sources was da-en- I 4 i strated as recuired by T.S. 3.8.1.1. This is ret a renatitiva 1 I

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i o l The Basler voltace reculator board d32101-102 showed sinns of havinn an

, y overheated resistor (P.-25) in its voltace feedback circuit, the cause of j I

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3 l l was reolaced in its entiretv. This is not a ceneric croblem and no _ ,_ ,

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