ML18143B425
| ML18143B425 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna, 05000000 |
| Issue date: | 08/21/1985 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Thompson H Office of Nuclear Reactor Regulation |
| References | |
| 85-570, NUDOCS 8508270067 | |
| Download: ML18143B425 (2) | |
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WD.UAM L STEWART Vice President Nuclear Operations August 21, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. H. L. Thompson, Jr., Director Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Gentlemen:
VIRGINIA POWER SURRY AND NORTH ANNA POWER STATIONS REACTOR SYSTEM TRANSIENT ANALYSES e
Nuclear Operations Department Post Ojfzce Box 26666 One fames River Plaza Richmond, Virginia 23261 VIRGINIA POWER Serial No.
PSE/NAS:vdu:
85-570 2004N 50-280 50-281 50-338 50-339 DPR-32 DPR-37 NPF-4 NPF-7 Docket Nos.:
License Nos.:
In our letter to you of April 14, 1981, Serial No. 215, we transmitted our Topical Report VEP-FRD-41, 11Vepco Reactor System Transient Analyses Using the RETRAN Computer Code.
11 The report, which was provided for review by your staff, describes the system transient analysis capability which Virginia Power is using in support of core reloads, and other operational or design changes at our nuclear units. Following a request for supplemental information, to which Virginia Power responded with letters dated February 27, 1984, July 12, 1984 and August 24, 1984, the staff issued a letter approving the report for referencing in license applications on April 11, 1985.
In the Safety Evaluation Report (SER) accompanying this approval, the staff required Virginia Power to supply an input deck as a condition of the approval.
In subsequent discussions with Mr. David Moran of the Standardization and Special Projects Branch, we were informed that an input deck listing for one of Virginia Power's production RETRAN Models would satisfy this requirement.
8508270067 850821 PDR ADOCK 05000280 P
e Mr. Harold R. Denton, Director Page 2 e
VIRGINIA POWER Accordingly, in order to rapidly address this issue, we have forwarded an input listing of our Single Loop Surry RETRAN model to Mr. D. H. Moran of your staff.
The general features of this model were described in some detail in our letters of February 27, 1984 (Serial No. 060) and July 12, 1984 (Serial No. 376).
Very truly yours, W. L. Stewart cc:
Mr. D. H. Moran Standardization and Special Projects Branch Mr. J. L. Carter Reactor Systems Branch Mr. J. Guttmann Reactor Systems Branch Dr. J. Nelson Grace Regional Administrator Region II Mr. Edward J. Butcher, Acting Chief Operating Reactors Branch No. 3 Division of Licensing Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Mr. D. J. Burke NRC Resident Inspector Surry Power Station Mr. M. W. Branch NRC Resident Inspector North Anna Power Station