ML20084K053
| ML20084K053 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 04/30/1984 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| RDC-97(84), NUDOCS 8405110087 | |
| Download: ML20084K053 (2) | |
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s CLEVELANo oHlo 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLOG.
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P.o. Box 5000 Serving The Best Location in the Nation MURRAY R. EDELMAN u$crgAR April 30, 1984 Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE:
Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Synchronization Between Standby Diesel Generator and Alternate Preferred Power Source [RDC 97(84)]
Dear Mr. Keppler:
This letter serves as the final report pursuant to 10CFR50.55(e) on the potential significant deficiency concerning synchronization of the standby diesel generator and the alternate preferred power source.
Mr. P. R. Pelke of your of fice was notified on February 16, 1984, by Mr. B. D. Walrath of The Cleveland Electric Illuminating Company (CEI) that this problem was being evaluated and an interim report, dated March 16, 1984, was also submitted. This discrepancy was identified during a safety system functional capability review performed for CEI by GDS Associates.
This report contains a description of the potential deficiency and of the evaluation of this condition. As a result of our evaluation, it has been determined that this condition is not reportable pursuant to 10CFR50.55(c).
Description of Potential Deficiency FSAR Section 8.3.1.1.3.2.7d states that the standby diesel generator cannot be synchronized with the alternate preferred power source from the diesel generator The design allows for this synchronization, however, our original room.
analysis did not indicate that local freque.ncy indication of the alternate preferred power source was Frovided for.
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N Mr. J.imes G. Krpplar April 30, 1984 Evaluation of Potential Deficiency Further evaluation by our Architect / Engineer, Gilbert Associates, Inc., has shown that sufficient local frequency indication is available to locally synchronize the standby diesel generator with the alternate preferred power source.
Should the control room arrange to supply bus EH11 from the alternate preferred power = source and a subsequent, attempt is made to synchronize locally, Potential Transformers monitor bus EH11 giving indication to the diesel generator panel via the-synchronization selector switch SW7 (contacts 1-la and 3-3a) for 4
proper synchronizing. We have determined, therefore, that the identified discrepancy is not reportable.
The FSAR wording will be updated to reflect the existing design capabilities.
Please call if there are any questions.
Sincerely, i
hfl.Mt ' h i
Murray R. Edelman Vice President Nuclear Group MRE:pab cc:
Mr. M. L. Gildner NRC Site Office Director I
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C.
20555 Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 l
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