ML20236U214
| ML20236U214 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 06/04/1975 |
| From: | Jennifer Davis, Dreher F, Thornburg H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PN-75-032, PN-75-32, NUDOCS 9807290387 | |
| Download: ML20236U214 (1) | |
Text
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PRELIMINARY NOTIFICATION - NOT FOR PUBLIC DISCLOSURE I
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June 4, 1975 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE
--PN-75-32
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This preliminary notification constitutes EARLY notice of events of l
POSSIBLE safety or public interest significance. The information presented is as initially received without verification or evaluation and is basically all that is known by OIE staff as of 4:45 p.m. on date of this notification.
IT SHOULD BE SPECIFICALLY NOTED THAT THIS
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NOTIFICATION MAY CONTAIN INFORMATION THAT LATER MAY BE DETERMINED TO I
BE INACCURATE OR INCONSISTENT. AN OFFICE OF INSPECTION AND ENFORCEMENT NOTIFICATION OF AN INCIDENT OF OCCURRENCE (BLUE SHEET) SUBSEQUENTLY
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WILL BE ISSUED IF WARRANTED.
Facility: Vermont Yankee l
Vermont Yankee Nuclear Power Corporation l
Subject:
PLANT SHUTDOWN FOR POSSIBLE EXTENDED PERIOD DUS TO FAILURE OF l
START UP TRANSFORMER IE was informed on June 4, 1975 that due to the failure of the unit start up transformer, the plant was performing an orderly shutdown,,and would l
remain shutdown until the startup transformer which failed could be func-p l
-tionally replaced.
This transformer supplies power to the unit's cooling l
towers which are the only allowed heat sink. During the shutdown, the river was used as a cooling water heat sink.
The licensee is investigat-e l I ing this Environmental occurrence.
The extent of the shutdown depends on the availability of mobile transformers or a replacement transformer.
The latter action could result in a shutdown of several months.,
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l Media interest is expected because of possibility of an extended 2) outage.
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The State of Vermont is being kept informed. A press release is not 7
planned.
Contact:
FADreher, IE x7261 HDThornburg, IE x7353 JGDavis, IE x7541 Distribution:
Chairman Anders Commissioner Mason S. J. Chilk, SECY j
Commission,e,r Gilinsky,,
Commissioner Rowden G. F. Murphy, JCAE Commissid'er Kennedy C. C. Kammerer, CA l
n L. V. Gossick, EDO D. F. Knuth, IE J. A. Harris, PA B. C. Rusche, NRR H. H. T3rown, ISP K. R. Chapman, NMSS H. K, Shapar, ELD Transmitted: P Bldg 9';rr A.; H St 9/-/r'h,; MD Bldg /d 'o rc,
-q PRELIMINARY NOTIFICATION - NOT FOR PUBLIC DISCLOSURE 9807290387 750604 PDR I&E PN-75-032 PDR l
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