ML20086Q877

Telecopy Ao:On 750214,pressurizer Pressure Comparator Failed.Caused by Setpoint Drift.Comparator Replaced

ML20086Q877
Person / Time
Site:	Surry
Issue date:	02/14/1975
From:	Sweeney E VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20086Q840	List: 05000280/LER-1975-005-01, /01T:on 750214,pressurizer Pressure Comparator Found Out of Calibr.Caused by Component Failure of Hagan Computer Sys Model 118 Signal Comparator A56Y 4111082-001. Comparator Replaced ML20086Q837 ML20086Q877
References
NUDOCS 8402280586
Download: ML20086Q877 (1)

Text

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(24) hours of an abnormal occurrence that occurred on February 14, 1975 Surry Nuclear Power Station.

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While conducting periodic calibration rests of pressurizer

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The setpoint had drifted below the lissit specified in techni-(d ',i[.p 6

cal specification 3.2.

Reactor was at 700 MWe. The comparator was re-f' s, e.,

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