ML20050B241
| ML20050B241 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 03/23/1982 |
| From: | Nells D, Wells D DETROIT EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, EF2-57460, NUDOCS 8204050135 | |
| Download: ML20050B241 (2) | |
Text
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co-sm Donald A. Wells ur are ow, Av.a vu (311) ) JI 'dh/
7000 Second Avenue IS O n Fil;79 = ""
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4 March 23, 1982 EF2-57460
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AppESilrgy.g Mr. Janes G. Keppler, Director M #4 k igggA h ts Region III U.S. Nuclear Regulatory Ccumissi 1 799 Roosevelt Road Glen Ellyn, Illinois 60137 P3
Subject:
Interim Report of 10CFR50.55(e) Item on &crgency Diesel Generator Relay Failures (#59)
Dear Mr. Keppler:
On February 22, 1982, Detroit Edison's Mr. fl.A. Walker, Supervisor-Construction Quality Assurance, telephoned Mr. P. Pelke of IRC-Region III, to report on a problem with &crgency Diesel Generator Relay Fail-ures at the Fermi 2 site.
Detroit Edison has had a number of relay failures in the control circuitry of the energency diesel generator for Division I.
On diesel generator num-bor twelve, six of eleven relays tested did not operate properly. The fail-ure of these relays would prevent the diesel generator frta starting. These relays were manufactured by ITE, and were supplied to Fermi 2 by Colt with the diesel generator. These relays were previously located on panels attached to the diesel generator, but were relocated to a separate panel to eliminate vibration. It is not known at this tine, if the failure is due to a manufac-turing problem with the relays or possibic damage sustained during the re-location. Detroit Edison is investigating this problem.
Another report on this item, either interim or final, is scheduled to be sent to you on or before July 22, 1982. If you have questions concerning this matter, please contact Mr. II.A. Walker, Supervisor-Construction Quality Assurance.
Very truly yours, f{
/NdI gg MAR 2 G 199g B204050135 820323 PDR ADOCK 05000341 gf g S
James G. Keppler, Director March 23, 1982 Page 'Iwo EF2-57460 cc: Mr. Richard DeYoung, Director Office of Inspection and Enforement Division of Reactor Inspection Programs U.S. Nuclear Regulatory Cmmission 6450 North Dixie Highway Newport, Michigan 48166 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Cmmission 6450 North Dixie Highway Newport, Michigan 48166 1
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