ML20058L031

Ler.On 751116,auto Blow Down Delay Relay for a Logic Channel Failed to Energize in Required Time Interval.Time Delay Reset Per Tech Specs

ML20058L031
Person / Time
Site:	Monticello
Issue date:	11/26/1975
From:	Grue T NORTHERN STATES POWER CO.
To:
Shared Package
ML20058L017	List: ML20058L013 ML20058L029 ML20058L031 ML20058L034 ML20058L045
References
LER-LER-751126-01, LER-LER-751126-1, NUDOCS 9105070359
Download: ML20058L031 (1)

Text

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6 57 58 59 60 61 68 69 74 75 80 EVENT CE SC A PT ION 3

l During routine surveillance of the APR system it was found that the Auto Blow Down j

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@ lDelav Relav for the "A" Logic Channel failed to energize in the required time l

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l interval.

The "B" Logic Channel vould have initiated the Auto Blow Dovn in the l

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l recuired tire interval.

Reset time delay relay. No previous similar occurrence.

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Rocer H-n delnv at 106 seconds to 7 E4 9 eo l insure that a 101 increase in time vill not violate the Technical Specification l

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1 7 89 80 ADDfTIONAL F ACTGAS 1

Cause Description (con't.)

limit of 120 seconds.

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