ML17333A874
| ML17333A874 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 04/30/1997 |
| From: | John Hickman NRC (Affiliation Not Assigned) |
| To: | Fitzpatrick E INDIANA MICHIGAN POWER CO. |
| References | |
| TAC-M96363, TAC-M96364, NUDOCS 9705020240 | |
| Download: ML17333A874 (7) | |
Text
Apri1 30, 1997 Mr.
E.
E. Fitzpatrick, Vice President Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive
- Buchanan, MI 49107
SUBJECT:
DONALD C.
COOK NUCLEAR PLANT, UNIT NOS.
1 AND 2 REQUEST FOR ADDITIONAL INFORMATION RE:
POWER UPRATE PROGRAM (TAC NOS.
H96363 AND H96364)
Dear Mr. Fitzpatrick:
The staff is reviewing your submittal dated July 11, 1996.
We will require additional information to complete our review.
Please respond to the enclosed Request for Additional Information within 60 days.
Please contact me at (301) 415-3017 if you have any questions on the above.
Sincerely, Original signed by:
John B. Hickman, Project Manager Project Directorate III-3 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket Nos.
50-315/316
Enclosure:
Request for Additional Information cc w/encl:
See next page DISTRIBUTION:
Docket File PUBLIC EAdensam (EGAI)
PD3-3 Reading JRoe GMarcus OGC ACRS GGrant, RIII
~r) Q plI~Og tw',(!g g'ig(i1I+ ljgQIPI ll DOCUMENT NAME:
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DCCOOK C096363.RAI OFFICE NAME PH:PD33 E
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CBo le DATE
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/9 OFFICIAL RECORD COPY 9705020240 970430 PDR ADQCK 050003i5 PDR
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April 30, 1997 Hr.
E.
E. Fitzpatrick, Vice President Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive
- Buchanan, HI 49107
SUBJECT:
DONALD C.
COOK NUCLEAR PLANT, UNIT NOS.
1 AND 2 REQUEST FOR ADDITIONAL INFORMATION RE:
POWER UPRATE PROGRAM (TAC NOS.
H96363 AND H96364)
Dear Hr. Fitzpatrick:
The staff is reviewing your submittal dated July 11, 1996.
We will require additional information to complete our review.
Please respond to the enclosed Request for Additional Information within 60 days.
Please contact me at (301) 415-3017 if you have any questions on the above.
Sincerely, Original signed by:
John B. Hickman, Project Manager Project Directorate III-3 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket Nos.
50-315/316
Enclosure:
Request for Additional Information cc w/encl:
See next page DISTRIBUTION:
Docket File PUBLIC EAdensam (EGA1)
PD3-3 Reading JRoe GMarcus OGC ACRS GGrant, RIII DOCUMENT NAME:
G:iDCCOOK C096363.RAI OFFICE PH:PD33 E
LA:PD33 E
NAME JHickman ~
CBo le DATE
/a c/
/
/9 OFFICIAL RECORD COPY
Hr. E.
E. Fitzpatrick Indiana Hichigan Power Company CC:
Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, Illinois 60532-4351 Attorney General Department of Attorney General 525 West Ottawa Street Lansing, Hichigan 48913 Township Supervisor Lake Township Hall P.O.
Box 818 Bridgman, Hichigan 49106 Al Blind, Site Vice President Donald C.
Cook Nuclear Plant 1 Cook Place Bridgman, Hichigan 49106 U.S. Nuclear Regulatory Commission Resident Inspector's Office 7700 Red Arrow Highway Stevensville, Hichigan 49127 Gerald Charnoff, Esquire
- Shaw, Pittman, Potts and Trowbridge 2300 N Street, N.
W.
Washington, DC 20037 Hayor, City of Bridgman
'ost Office Box 366 Bridgman, Hichigan 49106 Special Assistant to the Governor Room 1
State Capitol Lansing, Hichigan 48909 Drinking Mater and Radiological Protection Division Hichigan Department of Environmental equality 3423 N. Hartin Luther King Jr Blvd P. 0.
Box 30630 CPH Hailroom
- Lansing, Hichigan 48909-8130 Donald C.
Cook Nuclear Plant Hr. Steve J.
Brewer Indiana Hichigan Power Nuclear Generation Group 500 Circle Drive
- Buchanan, Hichigan 49107
RE(VEST FOR ADDITIONAL INFORMATION D.C.
COOK NUCLEAR POWER PLANT, UNIT NOS. I AND 2 POWER UPRATE PROGRAM I.
Information provided in Attachment 7
Balance of the Plant Evaluation/
Electrical Systems (Page 3'):
a.
Indicates that the generator step-up transformer will require limiting reactive power operation during the winter months to meet power uprate conditions.
It also indicates that this operation has been reviewed and is found to be acceptable.
Please provide
'dditional details on limiting reactive power requirements for the power uprate conditions.
b.
C.
Indicates as a result of the power uprate, the iso-phase bus temperature will increase slightly.
The temperature increase will reduce the margin between the normal operating point and alarm point.
Additional temperature monitoring will be required because of reduced margin.
If warranted, based upon operating experience at the power-uprated condition, future bus duct cooling system will be pursued.
Please provide additional information on the temperature monitoring, expected increase in iso-phase bus temperature, and future additional cooling.
Indicates that the stator water coolers in the generator/exciter were identified as requiring replacement to support the power-uprated operation.
A follow-up evaluation of the heat loads on these coolers determined one cooler could meet the expected
- demand, with the option of using the second unit as a standby unit if necessary.
Please explain if it is still necessary to" replace stator water coolers and what has changed in the stator to require only one cooler and not both.
2.
Provide impact of power uprate on the diesel generator load profile during loss of offsite power (LOSP) and LOSP with LOCA.
3:
Indicate impact of power uprate on grid stability and reliability.
4.
Provide the impact of the load, voltage, and short circuit values for power uprate conditions at all levels of the station auxiliary electrical distribution system.
5.
Provide result of analysis which demonstrates that there has been no reduction in margin due to power uprate between trip setpoints for loss of voltage or degraded grid voltage protective scheme installed on safety buses and transient voltage on safety buses that are expected following reactor trip due to a LOCA.
6.
. Provide information on environmental qualification for safety-related electrical equipment located in a harsh environment (containment, main steam valve room, and auxiliary building subject to high radiation due to post-LOCA recirculatory fluids) due to power uprate.
Discuss in detail the safety-related electrical equipment, the continued environmental
qualification, and the process for establishing qualification for increased temperature,
- pressure, humidity, and radiation levels for the power uprate.
7.
Verify and discuss if the assumptions used in station blackout coping analysis are valid for the power uprate conditions, particularly as they relate to heat-up analysis, equipment operability, battery capacity, etc.
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