05000318/LER-1981-033-03, /03L-0:on 810704,pressurizer Level Deviated Excessively from Program Level While Paralleling Main Turbine Generator.Caused by RCS Temp Swing,Not Uncommon During Paralleling Process

/03L-0:on 810704,pressurizer Level Deviated Excessively from Program Level While Paralleling Main Turbine Generator.Caused by RCS Temp Swing,Not Uncommon During Paralleling Process

ML20009D759
Person / Time
Site:	Calvert Cliffs
Issue date:	07/15/1981
From:	Junge M BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009D754	List: 05000318/LER-1981-033, Forwards LER 81-033/03L-0 05000318/LER-1981-033-03, /03L-0:on 810704,pressurizer Level Deviated Excessively from Program Level While Paralleling Main Turbine Generator.Caused by RCS Temp Swing,Not Uncommon During Paralleling Process
References
LER-81-033-03L, LER-81-33-3L, NUDOCS 8107240325
Download: ML20009D759 (1)

LER-1981-033, /03L-0:on 810704,pressurizer Level Deviated Excessively from Program Level While Paralleling Main Turbine Generator.Caused by RCS Temp Swing,Not Uncommon During Paralleling Process

Event date:
Report date:
3181981033R03 - NRC Website

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NRC FORM 366.

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60 61 DOCKET F4UMF ER 68 69 EVENT DATE 14 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o I 21.1 At 1420 while parallelino the main turbine cenerator. oressurizer level I

lo ial I deviated from the procram le' el by more than +/- 5% for 30 minutes I

! o 14 I I (T.S. 3.4.4).

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h clilOi l RCS. mperature swings of 10 i.eas are not uncocinon when paralleling j

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the main generator. These temperst.re svings can result in deviations 1

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grr.ater tisan +/- 5% from pressurizer program level. No corrective i

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% POWER OTHER STATUS IS O RY DISCOVERY DESCRIPTION

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