ML18130A617
| ML18130A617 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 08/20/1979 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Proffitt W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| Shared Package | |
| ML18130A618 | List: |
| References | |
| NUDOCS 7909200171 | |
| Download: ML18130A617 (2) | |
Text
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- Old Docket No. 50-280 Mr. W. L. Proffitt Senior Vice President - Power Virginia Electric and Power Company Post Office Box 26666
.Richmond~ Virginia. 23261
Dear Mr. Proffitt:
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(D_ocket fi 1 e.5..Q_~ J. Diodato NRC PDR J.R. Buchanan Local PDR TERA.
O~R#l Rqg ACRS (16)
NRR Rdg G. Lainan W. Gammill D. Tandi
.D. Eisenhut I. Ahmed -
B. Grimes T.-J. Carter W. Russe 11 Attorney, OELD OI&E (3)
A. Schwencer D. Neighbors P. Kreutzer We rsquested by letter dated April 16, 1979, that you submit your modification plan and testing program for correcting the reported underpower capacity
_ conditions on the Surry Power Station, Unit l 480V emergency busses~
You
_submitted the modification plan dated May 3, 1979, and ~e discussed the modification with your -staff in a meeting held on May 3, 1979.
The plan consists of adding a 1333 KVA (fan cooled rating) 480V Class lE load center to each of the two trains of the emergency power systems.
In response to our request at the meeting, you submitted a load and voltage analysis, and, integrated test progrilim and relay coordination ~ata on June 18, 1979.
Based on our review of your test re$ults, we have concluded that your proposed modification ensures the capability of the 480V Class lE System to meet its safety functions and is acceptabl~.
The details of our review are provided in the enclosed Safety Evaluation Report;
Enclosure:
Sa.fety Evaluation Report cc; w/enclosure See next page OFFICE:!!>
BUIINAI\\IEI~
DATE,>
NllC FORM 318 (!M6) NB.CM 02"0 Sincerely, A. Schwencer, Chief.
_Operating Reactors Branch #1 Division of Operating Reactors U.S. GOVERNMENT PRINTING OFFICE.: I 78 - 289 - 70D
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UNITED STATES NUCLEAR REGULATORV COMMISSION WASHINGTON, D. C. 20555 Docket No. 50-280 Mr. W. L. Proffitt
.Senior Vice President - Power Virginia Electric and Power Company Post Office Box 26666 Richmond, Virginia 23261
Dear Mr. Proffitt:
August 20, 1979 We requested by letter dated April 16, 1979, that you submit your modification plan and testing. program for correcting the reported underpower capacity conditions on the Surry Power Station, Unit l 480V emergency busses.
You submitted the modification plan dated May 3, 1979, and we discussed the modification with your staff in a meeting held on May 3, 1979.
The plan consists of adding a 1333 KVA (fan cooled rating) 480V Class lE load center to each of the two trains of the emergency power systems.
In response to our request at the meeting, you submitted a load and voltag~ analysis, and integrated test program and relay coordination data on June 18, 1979.
Based on our review of your test results, we have concluded that your proposed modification ensures the capability of the 480V Class lE System to meet its safety functions and is accept~ble.
The details of our review are provided in the enclosed Safety Evaluation Report.
Enclosure:
Safety Evaluation Report cc:
w/enclosure See next page Sincerely, a~
A. Schwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors