05000306/LER-1982-017, Forwards LER 82-017/03L-0

Forwards LER 82-017/03L-0

ML20069H753
Person / Time
Site:	Prairie Island
Issue date:	10/08/1982
From:	Musolf D NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20069H755	List: 05000306/LER-1982-017, Forwards LER 82-017/03L-0 05000306/LER-1982-017-03, /03L-0:on 820908,two Undervoltage Relays Found to Trip Outside Tolerance Band of 90 Plus or Minus 2% of Nominal Voltage.Cause Not Stated.Relays Recalibr
References
NUDOCS 8210190726
Download: ML20069H753 (1)

LER-1982-017, Forwards LER 82-017/03L-0

Event date:
Report date:
3061982017R00 - NRC Website

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Northem States Power Company 414 Ncollet man Minneapoks, Minnesota 55401 Telephone (612) 330-5500 October 8,1982 Regional Administrator Region III U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket No 50-306 License No. DPR-60 Degraded Voltage Relays on Unit 2 Safeguards Buses Found Out of Specification The License Event Report for this occurrence is attached.

This event is reported in compliance with Technical Specification 6.7.B.2(a) since it represents instrument settings outside of the allowable range. Redundant logic components would have prevented improper operation.

m David Musolf Manager of. Nuclear Sup t Services DMM/bd cc: NRC Document Control Desk (1)

NRC Resident Inspector MPCA Attn: J W Ferman Attachment 8210190726 821008 PDR ADOCK 05000306 OCT 12 22 s

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