ML20100C343
| ML20100C343 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 03/25/1985 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| CON-#285-315 OL, NUDOCS 8503290006 | |
| Download: ML20100C343 (3) | |
Text
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.e PHILADELPHIA ELECTRIC COMPANY 23O1 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 SHIELDS L. DALTROFF stec n1c rm c som March 25, 1985 Docket No. 50-352 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation US Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Denton:
The Limerick Generating Station Unit 1 is currently shut down performing maintenance and minor modifications directed toward enhancing and optimizing system performance.
Since it appears that a full power license may not be issued until mid to late April, 1985, we plan to test operate the main turbine generator within the capability of our existing 5% power license when the reactor is returned to service.
The operation of the main turbine generator at this time will permit us to identify potential problems associated with it and will help ensure a smooth startup test program beyond the 5% power limit.
The FSAR Section 14.2.-5 identifies several startup tests above 5% power that require the avai} ability of the main turbine generator.
Operation of the main turbine generator at this time l
will provide information regarding such variables as vibration l
and eccentricity, bearing metal and oil temperatures, oil system parameters, steam seal system performance, shell and rotor differential expansion, generator temperature monitoring, hydrogen purity, and hydrogen aystem monitoring.
Observed inconsistencies during this low power operation can be investigated and resolved such that these discrepancies will not affect later operation above the 5% power limit.
Our present license limits reactor power to 5%.
This limit is recognized as the steady state power limit which is not to be exceeded by any planned testing or other operations.
Equipment failures or control failures associated with the recirculation lgg32 Dob l
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Page 2 system, feedwater system, or pressure control system could have resulted in momentary power spikes above the 5% power level in the past.
By careful attention to detail no such power excursion has occurred.
With the main turbine generator in operation, no change in the above conditions would be expected since the turbine generator is merely substituted for the bypass valves as a steam flow path.
No testing will be performed which results in a planned turbine trip, however, it should be recognized that a turbine trip may occur and result in a power spike.
The probability of exceeding our 5% power license on an equipment failure with or without turbine generator in operation is not significantly different.
The operation of the main turbine generator within the 5%
power license limit is not inconsistent with the FSAR and poses no additional hazard to the health and safety of the public.
We would appreciate your concurrence in our interpretation that operation of the main turbine generator within the steady state 5% license power limit is appropriate.
If you have any questions or need additional information, please don't hesitate to contact us.
Very truly yours, c.,/CL v"f cc:
Dr. T. E. Murley, Administrator Mr. J.
T. Wiggins, Resident Inspector See Service List
ect Judg2 Halen F. Hoyt Judge Jerry Harbour Judge Richard F. Cole Judge Christine N.
Kohl Judge Gary J.
Edles Judge Reginald L.
Gotchy Troy B. Connor, Jr., Esq.
Ann B.
Hogdon, Esq.
Mr. Frank R." Romano Mr. Robert L. Anthony Ms. Phyllis Zitzer Charles W. Elliott, Esq.
Zori G. Ferkin, Esq.
Mr. Thomas Gerusky Director, Penna. Emergency Management Agency Angus Love, Esq.
David Wersan, Esq.
Robert J. Sugarman, Esq.
Martha W.
Bush, Esq.
Spence W.
Perry, Esq.
Jay M.
Gutierrez, Esq.
Atomic Safety & Licensing Appeal Board litomic Safety & Licensing Appeal Panel Docket & Service Section James Wiggins Timothy R. S. Campbell ww
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