ML17209A520
| ML17209A520 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 12/16/1980 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Robert E. Uhrig FLORIDA POWER & LIGHT CO. |
| References | |
| NUDOCS 8101100490 | |
| Download: ML17209A520 (7) | |
Text
OE~ g6 1980 Docket No.59-335 Dr. Robert E. Uhrig Vice President Florida Power 8 Light Company Advanced Systems 8 Technology P. 0. Box 529100 Miami, Florida 33152
Dear,
Dr. Uhrig:,
~e~have~eviewed your September 12, 1980 submittal regarding adequacy of staPfon electric distribution system voltages and have dehermined that the additional information identified in the enclosure is neces-sary:to complete our review.
Please provide this information within 45 days. of rreceipt of this letter.
Sincerely,
Enclosure:
Request for Additional Information Robert A. Clark, Chief Operating Reactors Branch ¹3 Division of Licensing
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)tp~g4 UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, O. C. 20555 December 16, 1980 Docket No. 50-335 Dr. Robert E. Uhrig Vice President Florida Power
& Light Company Advanced Systems 8 Technology P. 0.
Box 529100 Miami, Florida 33152
Dear Dr. Uhrig:
We have reviewed your September 12, 1980 submittal regarding adequacy of station electric distribution system voltages and have determined that the additiona'l information identified in the enclosure, is neces-sary to complete our review.
'Please provide this information within 45 days of receipt of this letter.
Sincerely, Operating Reactors Branch 83 Division of Licensing
Enclosure:
Request for Additional Information cc w/enclosure:
See next page
Florida'Power 5 Light Company CC:
Robert Lowenstein, Esquire Lowenstein, He~an, Reis 5 Axelrad 1025 Connecticut
- Avenue, N.M.
Washington, D.C.
20036 Norman A. Coll, Esquire McCarthy, Steel, Hector 5 Davis 14th Floor, First National Bank Building Miami, Florida 33131 Indian River Junior College Library 3209 Yirginia Avenue Fort Pierce, Florida 33450 Administrator Department of Environmental Regulation Power Plant Si ing Section State of Florida, 2600 Blair Stone Road Tallahassee, Florida 32301 Mr. Meldon B. Lewis
.County Administrator St. Luci e Coun.y 2300 Virginia Avenue, Room 104 Fort Pierce, Florida 33450 E:rector, Criteria and S anna".as %vision
%fice of~ Radia ion P."ograms (Dict-$60)
U.S. Environmental Protection A=ency
'ashine, on, D.C~
20/60 Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Bldg.
Tallahassee, Florida 32304 Bureau of Intergovernm ntal Relations 660 Apalachee Parkway Tallahassee, Florida 32304 Resident Inspec or/St. Lucie Nuclear Power Station c/o U.S.N.R.C P.O.
Box 400 Jensen Beach, Florida 33457 U.S. Environmental Protection Agency Region IY Office ATTN:
EI5 COOP.DI NATOR 345 Courtland Stree
, N.E.
Atlanta, Georgia 30308 Mr. Charles B. Brinkman Manager - Washington Nuclear Operations C-E Power Syst ms Combustion Engineering, Inc.
4853 Cordell Avenue, Suite A-1
- Bethesda, Maryland 20014
0 fa
nclosure I
RE(VEST FOR ADDITI"<AL INFORMATION ST.
L'UCIE 81 ADEQUACY OF STATION ELECTRIC DISTRIBUTION SYSTEM VOLTAGES Reference 1:
FPL Letter {Robert E. Uhrig) to NRC {Darrell G. Eisenhut),
dated September 12, 1980 Reference 2:
NRC Letter (W. Gammill) to all power reactor licensees, dated August 8, 1979 1.
With startup transformer lA or 18 out-of-service, verify per Guideline 1 and 2, Ref. 2, that the remaining startup transformer has the capacity and capa-bility to ensure adequate Class lE load terminal voltage to automatically start and continually operate within the equipment ratings of all Class lE loads.
Parallel operation of Units' and 2
4kv busses should be considered as discussed in section 8,2,1.3 of the 2.
Table A of Ref.
1 does not provide the load terminal voltages as required by Guideline 7, Ref. 2.
,Submit the Class IE load terminal voltage for the cases analyzed.
3.
Submit Class lE load terminal voltages for minimum plant load and maximum offsite gr id voltage (Guideline 11, Ref. 2).
4.
Ref. 1, page 2, paragraph 5 states that the analytical results were within 2> of actual plant test data.
Submit the test data and describe the standard plant test methods used to obtain the data.
5.
Ref. 1, page 2, paragraph-3 states that backfeeding through the main transformer bank to the Class lE buses is possible but that the. generator would not be operated in this configuration.
If the backfeeding configuration to the Class lE buses is to be used in any mode other than a reactor shutdown mode an analysis of the voltage at the Class 1E load terminals should be provided.
6.
Assuming the conditions as stated in Case 2, Ref, 1 indicate whether the second level of undervoltage protection relay will drop out due to an attempted start of the largest non-Class lE load not previously running or spuriously tripped off 1 ine.
Ef plant procedures prohibit starting or re-starting a large non-Class lE load under these conditions please indicate.