ML20141A108
| ML20141A108 | |
| Person / Time | |
|---|---|
| Site: | Perry, Harris, Comanche Peak, 05000000, Shoreham, Phipps Bend |
| Issue date: | 03/31/1986 |
| From: | Guntrum B TRANSAMERICA DELAVAL, INC. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| REF-PT21-86, REF-PT21-86-140-000 134, PT21-86-140, PT21-86-140-000, NUDOCS 8604040388 | |
| Download: ML20141A108 (2) | |
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Tr:nsarnener Detvil Inc.
{ggggg Entarprisa Engine Dinsion 1
1 lMl Enterpnse W;y & 85th Avinue 8 I f,--
,9 P.o. Box 2161
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s oakland, California 94621 N
gj g" (415) 577-7400 joo y,m March 31, 1986 Report #134 Director, Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Sir:
On February 19, 1986, Transamerica Delaval notified the Nuclear Regulatory Commission that a potential defect existed with a K-1 Relay in the generator voltage regulator.
This relay is a component of a DSR or DSRV Standby Diesel Generator.
Our letter stated that the subject relay had been environmentally qualified to operate in a range of 100 - 140 VDC.
This remains true for relays supplied to the following sites:
Long Island; Shoreham Carolina Power; Shearon Harris Texas Utilities; Commanche Peak TVA; Hartsville, Phipps Bend We have recently received information from the supplier of the voltage regulator for the Cleveland Electric, Perry Site.
We are advised that the DC voltage rating range in this case is 100 - 137.5 VDC.
The Perry specification requires operation in a range of 90 - 142 VDC.
As pointed out in our February 19 letter, the K-1 relay may not operate properly outside of its range adversely affecting generator output.
Corrective action at the Perry Site must take into account the equipment operating range of' 100 - 137.5 VDC.
A copy of this letter will be forwarded to all of the sites affected by our original notification.
Ver trul
- yours, k~
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B.C.'Gddtpum Managerr-Quality Assurance BCG:ddm If
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Transamenos
- Delaval II Il cc:
Long Island Lighting Co.
Shoreham Nuclear Power Station North Country Road Wading River, New York 11791 Attn:
Manager, Nuclear Operations Support Department Carolina Power & Light Co.
Shearon Harris Nuclear Plants P.O. No. 101 New Hill, North Carolina 27562 Attn:
Mr. R.A. Watson, Vice President Mr. L.I. Loflin, Harris Plant Eng.
Mr. N.J. Chiangi, Manager, Q.A.
Cleveland Electric Illuminating Co.
c/o Perry Nuclear Power Plant P.O. Box 97 Perry, Ohio 44081 Attn:
Mr. C.M. Shuster, Manager Nuclear Quality Assurance Texas Utilities Services Inc.
P.O. Box 2300 Glen Rose, Texas 76043 Attn:
Mr. J.T. Merritt, Jr.
Engineering & Construction Mgr.
TVA Hartsville W10 D224-400 Commerce Avenue Knoxville, Tennessee 37902 Attn:
Mr. C.A. Chandley Chief, Mech. Eng. Branch
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