ML19261C985
| ML19261C985 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/29/1979 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Stewart W FLORIDA POWER CORP. |
| References | |
| NUDOCS 7904230100 | |
| Download: ML19261C985 (3) | |
Text
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UNITED STATES
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March 29, 1979
%, =.....a Docket No. 50-302 Mr. W. P. Stewart
. Director, Power Production Florida Power Corporation P. O. Box 14042, Mail Stop C-4 St. Petersburg,' Florida 33733
Dear Mr. Stewart:
We have reviewed your January 29, 1979 submittal regarding the reactor coolant pump power monitor and have determined that the additional information requested in the enclosure is necessary to complete our review.
Please provide this information es soon as possible.
Sincerely, h/
Robert W. Reid, Chief Operating Reactors Branch.f4 Division of Operating Reactors
Enclosure:
Request for Additional Information cc w/ enclosure:
See.next page 7904230 loc
. lorica Power Corporation cc: fir. S. A. Brandf=cre Vice Presicent and General Counsel P. O. Bcx 14042 St. Petersburg, Florida 33733 Mr. Robert 3. Borstu Babcock & Wilcox fluclear Power Generation Division Suite 420, 7735 Old Georgetown Road Bethesda, Maryland 20014 Erystal River Public Library Crystal River, Florida 32629 Mr. Jack Shreve Office of the Public Counsel Rocm 4, Molland Building Tallahassee,. Florida 32304 O
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Enclosure CRYSTAL RIVER 3 RCP POWER MONITOR SYSTEM REQUEST FOR ADDITIONAL INFORMATION 1.
The RCP Power Monitor Sensors provide input to the Reactor Trip System.
It is the staff's position that the current transformers and potential transformers, which are the sensors for the RCP Power Monitor System must be seismically qualified in accordance with IEEE 279-1971.
Describe the qualification (ability to withstand the design basis seismic event) of current and potential transformers, and the basis for such qualification. Also provide reasonable assurance that the equipment will be capable of performing its safety function and further that in no way will this modification degrade the present RPS.
Describe the analyses, and/or test programs for ensuring the seismic qualification requirements.
2.
Address those aspects of the design (e.g., isolation devices) of the RCP Power Monitor System that will prevent high voltage break-down (insulation failure) in the 6.9 KV systsm from propagating into the reactor protection system redundant channels.
3.
Describe and justify the selection of the high and low trip set-points for the RCP Power Monitor System.
Identify those postulated failures that would result in an unacceptable loss of flow condition for which the RCP Power Monitor System is taken credit for in the accident analysis.
4.
Describa the test circuitry and procedures that will be used to verify functional capability of the RCP Power Monitor System.
Identify which tests and calibrations will be performed periodically including those that will be performed at each refuelina.
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