ML20112G787
| ML20112G787 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 02/25/1985 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| (55(E)-84-54), (NMP2L-0347), (NMP2L-347), NUDOCS 8504020002 | |
| Download: ML20112G787 (2) | |
Text
, _ _ _
.., L.
M Y NIAGARA 1j nuMOHAWK NIAGARA MONAWIC POWER CCRPORAT10N/300 ERIE BOULEVARD WEST, SYRACUSE. N Y.13202/ TELEPHONE (315) 4741511 February 25, 1985 (NMP2L 0347)
Mr. R. W. Starostecki, Director U. S. Nuclear Regulatory Commission Region I Division of Project and Resident Programs 631 Park Avenue King of Prussia, PA 19406 Re: Nine Mile Point - Unit 2 Docket No. 50-410
Dear Mr. Starostecki:
Enclosed is a final report in accordance with 10CFR50.55(e) for the problem concerning the diesel generator voltage profile study for the 600-V Class lE system.
This problem was reported via tel-con to T. Silko of your office on November 21, 1984.
An interim report was submitted via our letter dated December 20, 1984.
Very truly yours, C. V. Mangan Vice President Nuclear Engineering and Licensing CVM/GG:cla xc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, DC 20555 R. A. Gramm, NRC Resident Inspector Project File (2) 8504020002 850225 PDR ADOCK 05000410 S
PDR g &],
j
r pf'
\\
l NIAGARA M0 HAWK POWER CORPORATION NINE MILE POINT - UNIT 2 DOCKET NO. 50-410 Final Report for a Problem Concerning the Diesel Generator Voltage Profile Study for the 600-V Class lE System (55(e)-84-54)
Description of the Problem The Institute of Nuclear Power Operations inspection of Nine Mile Point -
Unit 2 identified the need for additional justification for an assumption made in the Diesel Generator Voltage Profile Study for the 600-V Class lE system.
Analysis of Safety Implications A calculation was made to verify the diesel generator sequential kVA loading requirements from time t = 0 after closure of the diesel generator breaker.
The results indicate that the assumptions made in the Diesel Generator Voltage Profile Study for 600-V Class lE System are justified.
Therefore, a
deficiency does not exist and the criteria for reportability under 10CFR50.55(e) have not been met.
-