ML19257C526
| ML19257C526 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 01/24/1980 |
| From: | Baynard P FLORIDA POWER CORP. |
| To: | Reid R Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8001290325 | |
| Download: ML19257C526 (3) | |
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(, O h P O H A T e O Pu January 24, 1980 File:
3-0-3 a-3 Mr. Robert W. Reid Chief Operating Reactors Branch //4 U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Crystal Rive r Unit No. 3 Docket No. 50-302 Operating License No. DPR-72
Dear Mr. Reid:
Your letter of December 17, 1979 requested Florida Power Corporation to submit additional information concerning our proposed modification to provide automatic RC pump trip during a small break LOCA.
Specitically, you requested that we provide a schedule for responding to Items 1 through 3 of your letter, including a schedule for the installation of this equipment.
You indicated that this information is necessary to resolve your staff's concerns regarding the relationship of RCP current /
power versus void fraction and the proposed B&W setpoint of 20% decrease in RCP current.
Since receiving your le t t e r, we have bee n in contact with B&W to determine the analysis program necessary to resolve your staff's concerns.
Based on a preliminary estimate from B&W, regarding the magnitude of this effort and the long time span for its accottplishment, it appears that our original design concept may tio longer be a viable solution.
This letter is to inform you that FPC is presently conducting discussions with B&W and other utilities that have gene ra t irg units with B&W NSSS alt'rnative designs.
These discussions involve other program optiens or e
solutions which will permit the installation of automatic reactor coolant pump trip during a small break LOCA.
1827118 80012,90 General Of fice 3201 inirty-fourin street soum. P O Box 14042. st Petersburg Fiord.3 3 Je813 866 5151 1
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!! r. Robert W.
Reid Page Two January 24, 1980 This additional review of other alternatives will require additional time to complete and we, therefore, req ue s t until February 29, 1980, to provide the schedule information identified in your letter.
If you require any further discussion on this matter, please contact us.
Very truly yours, FLORIDA POWER CORPORATION r>
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')nceu L Dr.
P. Y.
Baynard
. Manager Nuclear Support Services ECShewR01 (DN-89) 1824\\\\9
e STATE OF FLORIDA COUNTY OF PINELLAS Dr. P. Y. Baynard states that she is the Manager, Nuclear Support Services, of Florida Power Corporation; that she is authorized on the part of said company to sign and file with the Nuclear Regulatory Commission the information attached hereto; and that all such statements made and matters set forth therein are true and correct to the best of her knowledge, information, and belief.
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P. \\Y.' Baynard Subscribed and,sorn to before me, a Notary Public in and for the State and County above named, this 24th day of January, 1980.
Notary Public Notary Public, State of Florida at Large, My Commission Expires:
August 8, 1983 18h/1,20 CameronNotary 3(D12)