ML19260D207
| ML19260D207 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 01/17/1980 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Koester G KANSAS GAS & ELECTRIC CO. |
| References | |
| NUDOCS 8002080110 | |
| Download: ML19260D207 (1) | |
Text
Yhjl UNITED STATES
/t** " %,%
NUCLEAR REGULATORY COMMISSION i
R EGloN IV J
'.*k',,',j j [o 611 RY AN PLAZA DRIVE, SUITE 1000 7
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'r AR LINGTON, TEX AS 76012 g ~% g j g
January 17, 1980 In Reply Refer To:
RIV Docket No.
STN 50-482/IE Circular No. 80-01 Kansas Gas & Electric Co.
l.ttn:
Mr. Glenn L. Koester Vice President-Operations Post Office Box 208 Wichita, Kansas 67201 Genthmen:
The enclosed IE Circular No. 80-01 is forwarded to you for informaticn and, if applicable, necessary action in accordance to the attached General Electric Company Service Advice 721-162.2.
No written response to this Circular is required.
If you have any que.9tions related to the subject, please contact this office.
Siacerely,,
I,~
e
/
/
KarlV.Seyf$l1t W.d4
't Director
Enclosures:
1.
IE Circular No. 80-01 2.
List of IE Circulars Recently Issued cc: w/ enclosures Messrs. Nicholar A. Petrick, SNUPPS D. T. McPhee, Kansas City Power and Light Company Gerald Charnoff, Shaw, Pittman, Potts & Trowbridge E. W. Creel, Kansas Gas and Clectric Company 1942 311 800208o,,g
UNITED STATES SSINS No.-
6830 NUCLEAR REGULATORY COMMISSION Accessions No.:
OFFICE OF INSPECTION AND ENFORCEMENT 7912190644 WASHINGTON, D.C.
20555 IE Circular No. 80-01 January 17, 1980 Page 1 of 1 SERVICE ADVIC2 FOR GENERAL ELECTRIC INDUCTION DISC RELAYS Alabama Power Company reported to the NRC on October 16, 1979 a potential problem with certain General Electric Company induction disc type protective relays. A higher than normal pick-up value was caused by petroleum jelly lubricant which under high temperature conditions can migrate to the backstop.
At room temper-ature the lubricant can become adhesive and cause pickup values to be higher than setpoint values.
General Electric (GE) laboratory confirmed some higher than normal pickup values and recommended that users determine whether relays meeting the following criteria are in use at their facilities:
(1) Relay type:
IAC, IAV, ICR, or IJCV, AND (2) The relay date code (which is printed on a 3/4" x 3/8" sticker affixed to the relay cradle) has a number less than 50, followed by any of the following two letter codes:
(a) Any first letter followed by H, J, K, L, or M; or (b) The letter combinations.J, BN, CN, DN, EN, DG, EG, FG, GG, UG, JG, KG, LG or MG.
For :xample, 31GE would be considered, while 50 GK or 23HN would not be considered.
Experience has shown that the cleaning procedure recommended in GE Service Advict 721-162.1 may not in all cases remove all of the petroleum jelly which is lodged in place.
Based on the above, licensees are advised to apply G.E. Service Advice 721-162.2 (Enclosure A) to all relays that fall within the above two criteria.
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.
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