ML20072U447

Responds to IE Bulletin 83-01, Failure of Reactor Trip Breakers (Westinghouse DB-50) to Open on Automatic Trip. DB-50 Breaker W/Undervoltage Trip Attachment Not in Use at Facilities

ML20072U447
Person / Time
Site:	Oconee
Issue date:	03/10/1983
From:	Tucker H DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-SSINS-6820 IEB-83-01, IEB-83-1, NUDOCS 8304110317
Download: ML20072U447 (1)

Text

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DUKE POWER GOMPANY U'.? N RO PE Eh 1 v.o. nox sa 89 r. N T A . S i.G 3 'H A CHARLOTTE. N.C. 28242

!!AL H. TUCKER TELEPHONE ww. .mensomat March 10, 1983 m'a y m . (T1)37N531 Mr. James P. O'Reilly, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 )

Atlanta, Georgia 30303

Subject:

Oconee Nuclear Station Docket Nos. 50-269, -270, -287 l

Dear Sir:

By letter dated February 25, 1983, the NRC issued IE Bulletin 83-01, Failure j of Reactor Trip Breakers (Westinghouse DB-50) to open on Automatic Trip Signal. '

Duke has reviewed the Oconee plant design and has determined that the DB-50 breaker with an undervoltage trip attachment is not in use at Oconee.

In a followup action to the event at the Salem plant that caused the issuance of this bulletin, Duke, as well as other members of the B&W Owners Group, met with the NRC Task Force on March 8, 1983 to discuss with the Task Force the issues related to the event. As a result of this meeting, no further immediate actions were identified.

Duke will continue to evaluate the information from this event as it becomes available and will take any actions deemed necessary.

Very truly yours,

.e 4 Y '

Hal B. Tucker RLG/php cc: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Mr. J . C. Bryant NRC Resident Inspector Oconee Nuclear Station Mr. E. L. Conner, Jr.

Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 8304110317 830310 PDR ADOCK 05000269 0 PM

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