ML19256F306
| ML19256F306 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 10/23/1979 |
| From: | Schneider F Public Service Enterprise Group |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-79-23, NUDOCS 7912180472 | |
| Download: ML19256F306 (2) | |
Text
W 0 PS3G Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/430-7373 Frederick W. Schneider Vice President Production October 23, 1979 Mr. Boyce H.
Grier, Director Office of Inspection and Enforcement Region 1 U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406
Dear Mr. Grier:
RESPONSE TO NRC BULLETIN DATED SEPTEMBER 12, 1979 (79-23)
POTENTIAL FAILURE OF EMERGENCY DIESEL GENERATOR FIELD EXCITER TRANSFORMERS SALEM GENERATING STATION This letter is in response to your letter dated September 12, 1979, which concerns the potential failure of emergency diesel generators, namely the field exciter transformer.
The Salem Generating Station Units 1 and 2 diesel generator trans-former connections have been reviewed in accordance with IE Bulletin 79-23.
The connections between low KVA rated potential transformers and high KVA rated diesel generator potential transformers are such that circulating currents are adequately limited.
Therefore, no corrective action is required.
Salem Generating Station Units 1 and 2 Diesel Generators, Nos. 1B, 1C, 2A, 2B, and 2C were tested in accordance with requirements of Bulletin 79-23, which includes a 24-hour run, 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> at a load equivalent to the continuous rating (2600 KW) of the diesel generator and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> at a load equivalent to the 2-hour rating (2760 KW) of the diesel generator.
This test was done under Salem Generating Sta-tion surveillance procedures.
No alarms or abnormal conditions were recorded during this test, therefore, PSE&G concludes that all systems
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Mr. Grier 10-23-79 were maintained within design limits for the duration of this test.
Testing of Unit lA Diesel Generator is presently scheduled during the week of October 22, 1979.
If you should have any questions, please do not hesitate to contact us.
Sincerely, e i.~ iL-c L.
/;-
CC:
Director, Office of Inspection and Enforcement USNRC Washington, D.C.
20555 1608 351 m