ML20212H085
| ML20212H085 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 01/15/1987 |
| From: | Bailey J GEORGIA POWER CO., SOUTHERN COMPANY SERVICES, INC. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| GN-1336, NUDOCS 8701210276 | |
| Download: ML20212H085 (2) | |
Text
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Georgia Power Company Fbst Offica Box 28?
Waynesbora Georgu 30830 Telephone 404 554-9961 404 724-8114 Southern Company Services, Inc.
Fbst Office Box ?625 h
Birmingham, Alabama 35202 Telephone 205 8704011 g
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January 15, 1987 Director of Nuclear Reactor Regulation File: X3BL01 Attention:
Mr. B. J. Youngblood Log:
GN-1336 PWR Project Directorate #4 Division of PWR Licensing A U. S. Nuclear Regulatory Commission Washington, D.C.
20555
REFERENCES:
GPC LETTER GN-1080 DATED SEPTEMBER 19, 1986 GPC LETTER GN-1121 DATED OCTOBER 17, 1986 NRC DOCKET NUMBERS 50-424 AND 50-425 CONSTRUCTION PERMIT NUMBERS CPPR-108 AND CPPR-109 V0GTLE ELECTRIC GENERATING PLANT - UNITS 1 AND 2 CONFIRMATORY ITEM 36: TDI DIESEL GENERATORS
Dear Mr. Denton:
As described in the referenced letters, Georgia Power Company has implemented the Maintenance / Surveillance Program recommended by the TDI Diesel Generator Owners Group. Attached is an annotated FSAR page reflecting this commitment.
This change will be incorporated in the next FSAR revision.
If your staff requires any additional information, please do not hesitate to contact me.
Sincerely,
\\,
Y J. A. Bailey Project Licensing Manager JAB /dd At tach nent xc:
R. E. Conway NRC Regional Administrator R. A. Thomas NRC Resident Inspector J. E. Joiner, Esquire D. Feig B. W. Churchill, Esquire R. W. McManus M
A. Miller (2)
L. T. Gucwa B. Jones, Esquire Vogtle Project File i
G. Bockhold, Jr.
3f) 1)I 8701210276 870115 PDR ADOCK 05000424 E
VEGP-FSAR-8
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Conformance to Branch Technical Position (BTP) ICSB-8 The emergency diesel generators will not be used for peaking service in accordance with BTP ICSB-8, Use of Diesel-Generator Sets for Peaking.
M.
Programs for training, maintenance, and operations will be implemented as discussed in chapter 13.
N.
T K M4/WTW M " /N'AmW"* ReoAM, OEl/Elo/CD BY THE' TP/
pic5cl 4tycsereA-tRwycAf Gded, hW.$ farW w/trMr#7tp, 8.3.1.1.4 Control Rod Drive Power Supply Electric power to control rod drive mechanisms is supplied by two full-capacity, motor-generator sets.
Each motor-generator set is powered from a separate non-Class 1E 480-V load centAr.
Each generator is of the synchronous type and is driven by a 200-hp induction motor.
The ac power is distributed to the rod control power cabinets through two Class 1E series-connected reactor trip breakers.
8.3.1.1.5 Vital Instrument ac Power Supply Four independent Class 1E 120-V vital instrument ac power supplies are provided to supply the four channels of the protection systems and reactor control systems.
Each vital instrument ac power supply consists of an inverter and a distribution panel.
Trains A and B are provided with two inverters and two distribution panels.
Each distribution panel has two in' coming breakers which are interlocked so that only one breaker can be closed at a time.
The normally closed breaker is the inverter supply.
The normally open breaker is the 120-V ac inverter backup supply from a 480/120-V regulated transformer.
Normally, the inverter is operating to supply the vital ac bus.
l3 Each inverter is supplied by a Class 1E 125-V de system, as described in subsection 8.3.2.
If an inverter is inoperable or is to be removed from service, the vital ac bus can be supplied from the 120-V ac inverter backup supply (480/120-V regulated transformer) associated with the same load group by repositioning the distribution panel input breakers.
Administrative controls ensure that no more than one vital ac bus is powered from the regulated transformer backup power supply at any one time during routine preventive maintenance on the associated inverter.
Refer to figures 8.3.1-4 and 8.3.1-5 for the arrangement of the vital instrument ac power supplies.
8.3.1-22 Amend. 3 1/84