ML19253C691

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Forwards IE Circular 79-23, Motor Starters & Contactors Failed to Operate. No Response Required
ML19253C691
Person / Time
Site: Big Rock Point, Palisades  File:Consumers Energy icon.png
Issue date: 11/26/1979
From: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To: Dewitt R
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
NUDOCS 7912110252
Download: ML19253C691 (1)


Text

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NUCLEAR REGULATORY COMMISSION

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'g * % c j' GLEN ELLYN, ILLINOIS 60137 Docket No. 50-155 gy 2 6 $3 Docket No. 50-255 Consumers Power Company ATTN:

Mr. R. B. DeWitt Vice President Nuclear Operations 212 West Michigan Avenue Jackson, MI 49201 Gentlemen:

The enclosed IE Circular No. 79-23 is forwarded to you for your infor-mation. No written response to this circular is required.

If you have any questions related to the subject, please contact this off*ce.

Sincerely,

%.msb I

~

(/ James G. Kepp er Director

Enclosure:

IE Circular No. 79-23 cc w/ encl:

Mr. C. J. Hartman, Plant Superintendent Mr. J. G. Lewis, Manager Central Files Director, NRR/DPM Director, NRR/ DOR PDR Local PDR NSIC TIC Ronald Callen, Michigan Public 1540 164 Service Commission Anthony Roisman, Esq.,

Attorney Myron M. Cherry, Chicago 9121jg

SSINS No.:

6830 Accession No.-

7910250496 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.

20555 November 26, 1979 IE Circular No. 79-23 MOTOR STARTERS AND CONTACTORS FAILED TO OPERATE Gould, Inc., Electrical Products Group, reported to the NRC on September 11, 1979 potential defects in certain NEMA size 3, Starters and Contactors.

A possible binding or seisure of the carrier assembly, within the support plate of the stationary contact assembly, is caused by an undersized dimension of the support legs.

Starters and contactors with date code 7822 to 7935, model and serial numbers A10, All, A12, A13, A14, A20, A21, A22, and P10 are involved.

Faulty units were manufactured and distributed between June 1, 1978 and August 30, 1979.

The attached listing of nuclear plants, which have received some of this motor control equipment, represents a preliminary check of shipment records.

This listing, however, may not be complete.

Gould, Inc., will recall uninstalled items for retrofit and has retrofit kits available for field installation.

Based on the above, licensees are advised to verify all motor starter and contactor shipments received from Gould, Inc., between June 1, 1978 and August 30, 1979, and assure that applicable model and serial number components are corrected by retrofit and subsequent electrical operation tests.

No written response to this Circular is required.

If you desire additional information regarding this matter, contact the Director of the appropriate NRC Regional Office.

Enclosures:

1.

List of Plants That May Have Received Defective Starter or Contactors 1540 165 2.

List of Currently Issued IE Circulars DUPLICATE DOCUMENT Entire document previously entered into system under:

o OYM ANO No. of pages: