ML20008F126

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Forwards Request for Addl Info Re SEP Topic VIII-2,diesel Generators.Technical Basis for Using Assumed Motor Efficiency of 95% & Load Lists/Description for Each Load on MCC-1 & MCC-2 Requested within 30 Days
ML20008F126
Person / Time
Site: Yankee Rowe
Issue date: 02/27/1981
From: Crutchfield D
Office of Nuclear Reactor Regulation
To: Kay J
YANKEE ATOMIC ELECTRIC CO.
References
TASK-08-02, TASK-8-2, TASK-RR LSO5-81-02-063, LSO5-81-2-63, NUDOCS 8103120312
Download: ML20008F126 (3)


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NUCLEAR REGULATORY COMMISSION N.,,,,;;;p C

W ASHING 70N. D. C. 30355 gs '#Y!

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,,e Docket No. 50-29 LiO 5-81 063

7 Dennis M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing

Enclosure:

As stated cc w/ enclosure:

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$ sil

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Mr. Jaces A. Kay ec Mr. James E. Tribble, President Yankee Atomic Electric Cocpany 25 Research Drive Westborough, Massachusetts 01581 Greenfield Community College 1 College Drive Greenfield, Massachusetts 01301 Chairman Board of Selectmen Town of Rowe Rowe, Massachusetts 01367 Energy Facilities Siting Council 14th Floor One Ashburton Place Boston, Massachusetts 02108 Dir:ector, Criteria and Standards Division Office of Radiation Programs (ANR-460)

U. S. Environmental Protection Agency Washington, D. C.

20460 U. S. Environmental P otection Agency Region 1 Office ATTN: EIS COORDINATOR JFK Federal Building Boston, Massachusetts 02203 Resident Inspector Yankee Rowe Nuclear Power Station c/o U.S. NRC Post Office Box 23 Monroe Bridge, Massachusetts 01350

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SEP TOPIC VIII-2 FOR YANKEE R0WE JE0 VEST FOR ADDITIONAL INFORMATION Please provide the following clarifications and additional information with regard to your letter of January 20, 1981.

1.

For each diesel generator sequence:

(a) Name the sequence (e.g., loss of offsite powed and (b) List eacn load (by name) that is connected at each time step and the motor nameplate current.

2.

Provide the technical basis for using an assumed motor efficiency of 95%.

3.

Provide the load lists (by name) and load description (including currents) for each load on MCC-1 and MCC-2.

4.

Specify the short-time ratings of your diesel generators and provide the basis for this rating.

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