ML20084S809

Telecopy Ao:On 750503,electrical Flush Burned Out Diode Rectifier Array of Generator Excitation Circuitry.Work Request 1607-75 Issued for Repair of Damaged Electrical Gear

ML20084S809
Person / Time
Site:	Quad Cities
Issue date:	05/05/1975
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084S808	List: ML20084S806 ML20084S809
References
NJK-75-251, NUDOCS 8306170436
Download: ML20084S809 (1)

Text

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4.:.p Post Office Box 216 Cordova.19fno:s 61242 Telephono309/654 2241-MJK-75-251 Talecopy.: Region !!-8, A'ttention: Ms. C.. Feierabend-May 5..1975-J. Keppler, Regional Director DI' rectorate: of Regulatory Operations i R;gion III-U. .S. Nuclear Reguintory Coasnissforr 799 Rooseveit Road C1gn- El lyn , Illinois. '60137.

Reference:

Quad-Cities Mucicar Power Station,. Unit I .

Docket No. 50-254, DPR-29 - -

Appendix: A,. Sections 1.0, A.2, 3 9. A.1',. 6.6.B.1-.a.

De:r Mr.. Keppler:

The purpose ofs this. Totter is to>prov-Idc you- withinot-I fidation, of, an - Abnortsal' Occurrence as required. by Technical Spect fication. 6.6.B.1.'a. within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of-the occurrence..

At.' f 01.18Mf on Hays.3,.197S,. whlie performinD the Core: Spray: Logic. Surveillance T2sti .a trouble.-alaret wan received on Unit i D{esel: Generator. An electrical.

fidsh' burned. out the diode. rectifidr array of the generator's excitation cir-cultry: The generator was stopped. . No damage occurred other than that t rn the recti fTer cabinet.. A. work request (1607-757 was then- Issued- for repair of the damaged ciectrical gear.

Although; ths Dresci Generotor was etade Inoperable, the safety Irrpli' cations were.

minimized. by- the fact that the unit was shutdown in- the refuel r.cde for the Core-Spray- Log i c Te s t .. .

This occurrence:was discussed by teicphone with3 Nr. C. Feierabend of your officie-on flay 4, .1975. . Further inforretion w!!I: be provided by- Abnormal: Occurrence Raport'Ao' 50.-254/75-9"whicir-wi11 be submitted withlm 10- dcys, of, the dete- of, this:

occurrencea V2ry truly yours,.

' OM.':0HVEALTH ED4SOM" COMPANY' C

QUAD-CITIET HUCLErP/POVER. STAT 10N:

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N;. J. Kalivianakts-4w Station Superintendent NJK/ CMS /wri ce r. Directorateiof Licensing J S. Abel S