ML20042E159

Provides Listed Guidelines for Development of Operating Procedures Re Ac Power Restoration to Respond to Station Blackout Event,Per 10CFR50.63, Loss of All AC Power.

ML20042E159
Person / Time
Site:	South Texas
Issue date:	04/05/1990
From:	Mcburnett M HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-3408, NUDOCS 9004200300
Download: ML20042E159 (3)

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. The: Light company S uth Texas Project Electric Generating P. O. Station Bom 289 Wadsworth, Texas 77483 Houston Lighting & Power April 5, 1990 ST HL-AE-3408 File No.: G03.01, G03.11 10CFR50.63'  ;

I U. S. Nuclear Regulatory Commission Attention: Document Control Desk-

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Washington, DC -20555 South Texas Project Electric Generating Station Units 1 and 2-Docket Nos.;STN 50-498, STN 50-499  ;

Supplemental Response-to 10CFR50.63:  ;

Establishinc Priorities for Restorine AC Power j Houston Lighting & Power Company-(HL&P) submits this notification that '

an action item from the April 17, 1989 response (ST-HL-AE 3045) to 10CFR50.63,

" Loss of All Alternating Current Power," to establish priorities for restoring AC power has been completed. NUMARC 87-00, Section 4.2, provides the following guidelines for development of operating procedures regarding AC. power restoration to respond to a station' blackout event, _

R o Load dispatchers should give che highest possible priority to restoring power to nuclear units. ' Procedures and training should consider several potential methods of transmitting power from black-start capable units to the nuclear plant. ,

o Should incoming transmission lines to a nuclear power plant be damaged, high priority should-be assigned to repair and restoration  ;

activities to at least one line capable of feeding-shutdown equipment. .I o Repair crews engaging in power restoration activities for nuclear.

units should be given high priority for manpower, equipment, and i

materials.

The owners of the South Texas Prcject Electric Cenerating Station (HL&P, City Public Service Board of San Antonio, Central Power and Light Company, and the City of Austin) have utablished a formal agreement by vote of the -

a management committee which establishes such priorities. This agreement' contains provisic..s to the effect that:

a. In the event of an STPEGS emergency, the HIAP Energy Control Center will direct the system controllers of each co-owner, as required, to mitigate the emergency, 9004200300 900405 PDR ADOCK 05000498 P PDC AV007 m -

A Subsidiary of Houston Industries incorporated - 0 i: 0

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.p Houston Lighting & Power Company South Texas Project Electric Generating Station ST-HL AE 3408 File No.: G03.01, G03.11 Page 2

b. The co owners agree that, in the event of loss of power on their individual transmission systems due to system emergencies, restoration of power and the 345 KV . circuits connected to the STPEGS switchyard (and in the case of Central, the 138 KV line to STPEGS) will be accomplished as a high priority.

If you should have any quest sns, please contact Mr. P. L. Walker at

(512) 972 8392 or myself at (512) 972-8530.

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.lA. McBur ett Manager, Nuclear Lice: sing PLW/n1 i

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• ST-HL AE 3408 Howton Lighting & Power Company

. ' Sosth Texas Project Electric Generating Station File No.:003.01, 003.11 pag 3 -

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Regional Administrator, Region IV Rufus S. Scott.

, ' Nuclear Regulatory-Commission Associate-Ceneral Counsel l 611-Ryan Plaza Drive, Suite 1000- Houston Lighting _&_ Power Company Arlington, TX -76011 P. O. Box-61867

• Houston,-TX '77208 Coorge Dick, Project Manager .

.U.S. Nuclear-Regulatory. Commission INPO ,

. Washington, DC 20555 Records Center 1100 Circle 75-Parkway ,

Atlanta, CA ~30339-3064-J. I. Tapia .

Senior Resident Inspector .

c/o U. S.' Nuclear Regulatory Dr. - Joseph M. Hendrie Commission 50 Be11 port Lane P. O. Box 910 .

Be11 port,-NY 11713

, ' Bay City, TX_ 77414 D.- K. Lacker

'J. R. Newman, Esquire . Bureau of Radiation Control  ;

Newman &'Holtzinger, P.C. 1 Texas Department of Health t

-1615 L Street, N.W. 1100 West 49th Street '

Washington, DC 20036 Austin, TX _78704 D. E. Ward /R. P. Verret "

Central Power & Light Company P, O. Box 2121 1 Corpus Christi, TX 78403- 't i

J. C. Lanier Director of Ceneration '

City of Austin-Electric Utility 721 Barton Springs Road (

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Austin, TX 78704

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R. J. Costello/M. T. Hardt City Public Service Board -

P. O. Box 1771 San Antonio, TX 78296 Y

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Revised 12/15/89 r i

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