ML20079E542
| ML20079E542 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 01/13/1984 |
| From: | Murphy W VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| FVY-84-1, GL-83-41, NUDOCS 8401170352 | |
| Download: ML20079E542 (1) | |
Text
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VERMONT YANKEE NUCLEAR POWER CORPORATION 2.C.2.1 fo RD 5, Box 169 Ferry Road, Brattleboro, VT 05301
. g ENGINEERING OFFICE 1671 WORCESTER ROAD FRAMINGHAM, MASSACHUSETTS 01701 TELEPHONE 617-672-6100 January 13, 1984 U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Attention:
Darrell G. Eisenhut, Director Division of Licensing
References:
a)
License No. DPR-28 (Docket 50-271) b)
Letter, USNRC to VYNFC, dated 12/16/83; Generic Letter 83-41
Dear Sir:
Subject:
Fast Cold Starts of Diesel Generators 4
The following information is provided in response to questions contained in Reference b). Please note that our Emergency Diesels are designed to have a coatinuously running lube oil and jacket coolant warmup system. Additionally, our normal surveillance procedures require the diesels to be cranked to pre-lubricate all cylinders prior to starting. During demand starts this total pre-lubrication does not occur.
According to our records, the number of demand starts of our Emergency Diesel Generators between December 1, 1982 and December 1, 1983 was threa per machine.
The categrical breakdown of those starts is as follows:
a surveillance testing 0
b maintenance activitics O
c) actual demands 3 per machine In our judgement nnn-prelubricated starting can lead to accelerated long-term wear of some bearing surfaces of the machine and the number of such starts is kept to a minimum.
It is our belief that current operations will not signi-ficantly reduce the reliability of the machine over the life of the plant.
~We trust that this informatfon is sufficient; however, should additional data be needed, do not hesitate to ca)6.
Very truly y6urs, VERMONT YANKEE NUCLEAR POWER CORPORATION 8401170352 840113
/
PDR ADOCK 05000271 44(4-~
w P
PDR Warren P.
urphy Cj Vice Pres dent and WPM /dm Manager of Operations fd j
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