ML19305C057

LER 80-002/03X-1:on 800107,startup Channel Scram Protection at Low Counts Per Second Found Not Operable During Region Constraint Device Installation.Caused by Improper Setpoints on High Voltage Cut Off from Wide Range to Startup Channels

ML19305C057
Person / Time
Site:	Fort Saint Vrain
Issue date:	03/18/1980
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19305C053	List: ML19305C052 ML19305C057
References
LER-80-002-03X, LER-80-2-3X, NUDOCS 8003250533
Download: ML19305C057 (1)

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REPORT oATE 7 8 60 61 coCKET NUMSER 68 69 EVENT oATE EVENT 3ESCRIPTION AND PROB ABLE CONSECUENCES h lol2l l On January 7,1980, it was determined that the startuo channel scram protection at I s

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43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l 3 l o l l Lack of startup channel scram protection was due to inproper setpoints on the high I i , i voltage cut off from the wide range channels to the startup channels. Upon discoverv,1 l m l a permanent seepoint change was initiated to ensure recuirements for startuo channel- I g l scram protection. can be met. l i

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