ML17289A645

Discusses Performance of Quarterly Rotor Pole Ac Voltage Drop Test on Div 2 Emergency Diesel Generator.W/Eight Oversize Encls

ML17289A645
Person / Time
Site:	Columbia
Issue date:	06/17/1992
From:	Bill Dean Office of Nuclear Reactor Regulation
To:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
References
NUDOCS 9206250094
Download: ML17289A645 (5)

Text

. Docket No. 50-397

))

Hr.. G.,C.

Sorensen, Manager Regulatory Programs Washington Public Power Supply System 3000 George Washington Way P.O.

Box 968

Richland, Washington 99352 1

Dear Hr. Sorensen:

June 17, 1992 I

9206250094 9206i7 PDR ADQCK OS000397 P

PDR

SUBJECT:

WASHINGTON PUBLIC POWER SUPPLY SYSTEM NUCLEAR PROJECT NO.

2 (WNP-2)

EMERGENCY DIESEL GENERATOR-2, SHORTED TURNS (TAC H82996)

By letters from you to the NRC dated July 27, 1990 (G02-90-130) and August 2, 1990 (G02-90-133),

you committed to performing a quarterly rotor pole a.c.

voltage drop test on the Division 2 emergency diesel generator (EDG-2).

This testing schedule was contained in WNP-2's justification for continued operation (JCO) that resulted from a shorted turn condition on one of the EDG-2 rotor poles.

The JCO concluded that EDG-2 was capable of supporting the operability requirements of the Technical Specifications and fulfillingits design function with the shorted turn condition.

In your letter of February 21, 1992 (G02-92-045) you provided information to support performing the pole drop test on an annual basis'he staff has reviewed this information and has no concerns regarding the change in testing frequency.

As noted in your August 2, 1990, letter, if the voltage drop testing results indicate abnormal results, the NRC resident inspector will be

informed, as the operability of EDG-2 may then be in question.

Otherwise, the staff requires no further information regarding this matter.

Should you have any questions regarding this matter, please contact me.

This completes our efforts under TAC M82996.

Sincerely, Original signed by William H. Dean, Project Manager Project Directorate V

Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc:

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)f>>*+4 Docket No. 50-397 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 June 17, 1992 Hr.

G.

C. Sorensen, Manager Regulatory Programs Washington Public Power Supply System 3000 George Washington Way P.O.

Box 968

Richland, Washington 99352

SUBJECT:

WASHINGTON PUBLIC POWER SUPPLY SYSTEM NUCLEAR PROJECT NO.

2 (WNP-2)

EMERGENCY DIESEL GENERATOR-2, SHORTED TURNS (TAC H82996)

By letters from you to the NRC dated July 27, 1990 (G02-90-130) and August 2, 1990 (G02-90-133),

you committed to performing a quarterly rotor pole a.c.

voltage drop test on the Division 2 emergency diesel generator (EDG-2).

This testing schedule was contained in WNP-2's justification for continued operation (JCO) that resulted from a shorted turn condition on one of the EDG-2 rotor poles.

The JCO concluded that EDG-2 was capable of supporting the operability requirements of the Technical Specifications and fulfillingits design function with the shorted turn condition.

In your letter of February 21, 1992 (G02-92-045) you provided information to support performing the pole drop test on an annual basis.

The staff has reviewed this information and has no concerns regarding the change in testing frequency.

As noted in your August 2, 1990, letter, if the voltage drop testing results indicate abnormal results, the NRC resident inspector will be

informed, as the operability of EDG-2 may then be in question.

Otherwise, the staff requires no further information regarding this matter.

Should you have any questions regarding this matter, please contact me.

This completes our efforts under TAC H82996.

Sincerely, cc:

See next page William H. Dean, Project Manager Project Directorate V

Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation

Hr.

G.

C. Sorensen WPPSS Nuclear Project No.

2 Washington Public Power Supply System (WNP-2)

CC:

Mr. J.

W. Baker WNP-2 Plant Manager Washington Public Power Supply System P.O.

Box 968, HD 927M

Richland, Washington 99352 G.

E.

C. Doupe, Esq.

Washington Public Power Supply System 3000 George Washington Way P. 0.

Box 968, MD 396

Richland, Washington 99532 Hr.

R.

G. Waldo, Chairman Energy Facility Site Evaluation Council Hail Stop PY-ll Olympia, Washington 98504 Hr. Alan G. Hosier, Licensing Manager Washington Public Power Supply System P. 0.

Box 968, HD PE21

Richland, Washington 99352 Hr. J.

V. Parrish, Assistant Managing Director for Operations Washington Public Power Supply System P. 0.

Box 968, HD 1023

Richland, Washington 99352 Hr. L. L. Grumme, Acting Director Licensing and Assurance Washington Public Power Supply System P. 0.

Box 968, HD 280

Richland, Washington 99352 Regional Administrator, Region V

U.S.

Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Chairman Benton County Board of Commissioners P. 0.

Box 190

Prosser, Washington 99350-0190 Hr.

R.

C. Sorensen U.

S. Nuclear Regulatory Commission P. 0.

Box 69

Richland, Washington 99352 Nicholas S.

Reynolds, Esq.

Winston

& Strawn 1400 L Street, N.W.

Washington, D.C.

20005-3502

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