ML20069A789
| ML20069A789 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/07/1983 |
| From: | Hukill H GENERAL PUBLIC UTILITIES CORP. |
| To: | Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| REF-SSINS-6820 5211-83-067, 5211-83-67, IEB-83-01, IEB-83-1, NUDOCS 8303160260 | |
| Download: ML20069A789 (1) | |
Text
GPU Nuclear Corporation 5
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M!ddletown. Pennsylvania 17057 717 944-7621 TELEX 84-2386 Writer"s Direct Dial Number:
March 7, 1983 5211-83-067 Mr. R. C. Haynes Region I, Regional Administrator U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
Dear Sir:
Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 IE Bulletin 83-01 This letter is in response to your letter of February 25, 1983, forwarding IE Bulletin 83-01 concerning failure of reactor trip breakers.
The TMI-l Reactor Trip Breakers are General Electric AK-2 circuit breakers.
The requirements of Bulletin 83-01 do not apply since Westinghouse DB breakers are not used as Reactor Trip Breakers.
Note: Westinghouse DB breakers are used on Class IE equipment at TMI-1; however, they do not have undervoltage devices.
This concern, therefore, does not affect those breakers.
The Reactor Trip Breakers at TMI-l are tripped by an undervoltage device for which a similar cone,rn was identified by Bulletin 79-09.
The maintenance and testing described in our response are maintained current when the unit is operating.
Additional information and discussion of Scram breaker failures will be provided at the March 8, 1983, meeting with the NRC and B6W Regulatory Response Group.
Specific information regarding use of Westinghouse DB-50 breakers at TMI-l has been provided to the TMI-l Senior Resident Inspector.
Sincerely,
/
8303160260 830307 PDR ADOCK 05000289
. D. f'ukill G
PLR Director, TMI-l HDH: RAS:vj f cc:
R. Conte GPU Nuclear Corporation is a subsidiary of the General Pubhc Utihties Corporat:cn
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