ML18064A793

Monthly Operating Rept for May 1995 for Palisades Nuclear Power Plant.W/950602 Ltr

ML18064A793
Person / Time
Site:	Palisades
Issue date:	05/31/1995
From:	BERLES B W, WILLIAMS A L CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9506130207
Download: ML18064A793 (5)

Text

/ . ...-* . consumers Power POW ERi Nii lllllCHlliAN'S PROliRE55 Palisades Nuclear Plant: 27780 Blue Star Memorial Highway; Covert. Ml 49043 June 2, 1995 US Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 LICENSEE REPORT OF MONTHLY OPERATING DATA DPR-20, DOCKET NO 50-255 Enclosed is a copy of the Monthly Operating Data and Summary of Operating Experience for the Palisades Nuclear Plant for the month of May, 1995. If you have any questions or concerns, please feel free to contact me at (616) 764-8913, extension 0113. Sincerely, AL Williams Reactor Engineer CC: RAVincent, Palisades Senior Resident Inspector, Palisades DRHahn, Div of Rad Health Services, Lansing, MI BWJorgenseri, Michigan Dept of Labor, Lansing, MI JPadgett, Michigan Public Service Commission Records Center, INPO, Atlanta, GA CWMain, Palisades SMMclntyre, Pl3-121 Region III Administrator, USNRC Document Control, 950*22*35*10/L Cycle ll Reports 9506130207 9$0531 .PDR ADOCK 05000255 R *.. PDR . A GHS' ENERGY COMPANY

'* OPERATING STATUS: 1. UNIT NAME 2, REPORTING*

PERIOD: 3. LICENSED THERMAL POIJER.(MIJt)

4. NAMEPLATE RATING (GROSS. MIJe) 5. DESIGN ELECTRICAL RATING (NET MIJe) 6. MAXIMUM DEPENDABLE CAPACITY (GROSS MIJe) 7. MAXIMUM DEPENDABLE CAPACITY (NET MIJe) OPERATING DATA REPORT Palisades 950501-950531 2530.0 811 .7 805.0 **770 **730 8. IF CHANGES OCCUR IN CAPCITY RATINGS (ITEM NUMBERS 3 THROUGH ?AND 7) SINCE LAST REPORT, GIVE REASONS: 9. POIJER LEVEL TO IJHICH RESTRICTED, IF ANY (NET MIJe):. 10. REASONS FOR RESTRICTIONS, IF ANY: 11. HOURS IN REPORTING PERIOD 12. NUMBER OF HOURS REACTOR IJAS CRITICAL 13. REACTOR RESERVE SHUTDOIJN HOURS 14. HOURS GENERATOR ON-LINE 15. UNIT RESERVE SHUTDOIJN HOURS 16. GROSS THERMAL ENERGY GENERATED (MIJH) 17. GROSS ELECTRICAL ENERGY GENERATED (MIJH) 18. NET ELECTRICAL ENERGY GENERATED* (MIJH) 19. UNIT SERVICE FACTOR 20. *UNIT AVAILABILITY FACTOR 21. UNIT CAPACITY FACTOR (USING MDC NET) 22. UNIT CAPACITY FACTOR (USING.DER NET) . 23. UNIT FORCED OUTAGE RATE This Month 744.0 515.2 515.2 1170744.0 372341.0 352564.0 69.2% 69.2% 64.9% 58.9% . 23.2% 24. SHUTDOIJNS SCHEDULED OVER THE NEXT 6 MONTHS (TYPE, DATE AND DURATION OF EACH): Yr-to-Date 3623.0 3394.2 3394.2 8384257 .. 0 2720389.0

2587807.0

93. ?"!. 93.7% 97.8% 88.7% 4.4% The 1995 Refueling Outage began on 5/22/95 and is scheduled for 92 days 25. IF SHUTDOIJN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

Forecast*

INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

• • Based on condenser backpressure

• IJeighted Average (635 MIJe used as MDC Net prior to October 1985) DOCKET NO DATE COMPLETED BY TELEPHONE NOTES: 50-255 06-02-95 BIJBerles (616)764-8913 cumulative 205550.0 117706.2 113056.3 246674908.0 78085180.0 73684368.0 55.0% 55.0% 53.0%* 44.5% 29.2% Achieved AVERAGE DAILY UNIT POWER LEVEL MONTH ____ MA_Y __ _ DAY AVERAGE DAILY POWER LEVEL DAY (MWe Net) 1. 776 17. 2. 775 . 18 .. 3. 776 . 19. 4. 775 20. 5. 774 21. 6. 773 22. 7. 769 23. 8. 771 24. 9. 768 25. 10. 580 26. 11. 426 27. 12. 546 28. 13. 565 29. 14. 631 30. 15. 642 -31. 16. 662 INSTRUCTIONS:

DOCKET NO 50-255 UNIT Palisades DATE 06/02/95 COMPLETED BY BWBerles TELEPHONE (616)764-8913 AVERAGE DAILY POWER LEVEL (MWe Net) 671 677 676 673 676 310 0 0 0 0 0 0 0 0 0 On this format, list the average daily unit power level in MWe-NET for each day in the reporting month. Compute to the nearest whole megawatt.

SUMMARY

OF OPERATING EXPERIENCE FOR MAY 1995 The unit began the month operating at full power. On 5/10/95 at* 1300, the loss of Bus lG resulted in Cooling Tower Pump P-398 tripping.

An emergency power reduction was made and the unit was stabilized at 55% power. Power was slowly raised to 88% by 5/16/95, where it remainded until 5/22/95. At 1105 on 5/22/95, 'A' Main Feedwater Pump tripped and an emergency power reduction was performed to approximately 50%. At 1110, 'B' Main Feedwater Pump also tripped, at which point the reactor was manually scrammed.

The unit remained off-line and entered the Refueling Outage originally scheduled for 5/28/95.

REPORT MONTH ___

5 __ _ No. Date Type 1 5/10/95 2 5/22/95 F 3 5/28/95 s l. F: Forced S: Scheduled UNIT SHUTDOWNS AND POWER REDUCTIONS Duration (Hours) 2. Reason: 131 155._8 Method of Shutting Down Reactor 3 A-Cooling Tower Pump Trip A-Both Main 2 Feedwater Pumps Tripped c 3. Method: 1-Manual Licensee Event Report # 95-003 A-Equipment Failure -(Explain)

• B-Maintenance or Test C-Refueling*

D-Regulatory Restriction E-Operator Training & License 2-Manual Scram 3-Automatic Scram 4-0ther (Explain)

Examination F-Administrative G-Operational Error (Explain)

H-Other (Explain}

4. System Code 4 Component Code 5 Exhibit G -Instructions for Preparation of Data Entry Sheets for Licensee Event Report (LER) File (NUREG-'0161)

Cause & Corrective Action to Prevent Recurrence DOCKET NO 50-255 UNIT Palisades DATE 06/02/95 COMPLETED BY __ B::..:W.:..:B"'e.:...r.:..:le=s TELEPHONE (616)764-8913 Power reduction from 100% to 55% following CT trip. Power raised to 88% by 5/16/95. Loss of both Main Feedwater in a 5 minute interval.

Rapid downpower from 88% to 60%. power, followed by manual scram from 60% power. Refueling Outage scheduled to begin on 5/28/95 began on 5/22/95 due to #2. 5. Exhibit I -Same Source . -