ML18043A217

Monthly Oper Rept for Sept 1978

ML18043A217
Person / Time
Site:	Palisades
Issue date:	10/04/1978
From:	Bollnow D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18043A216	List: ML18043A215 ML18043A217
References
NUDOCS 7810110122
Download: ML18043A217 (4)

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OPERA TING DATA REPORT DOCKET NO. 50-255 DATE 10-4-78 CO~iPLETED BY DIBollnow.

TELEPHONE 616-764-8913 OPERATING STATUS Palisades Notes I. Unit Name:

2. Reporting Period: 780901 to 780930

3. Licensed Thermal Power (MWt): 2530

4. Nameplate Rating (Gross MWe ): 811 .. 7 805

5. Design Electrical Rating (Net MWe):

6. Maximum Dependable Capacity (Gross MWe):

• 675

7. Maximum Dependable Capacity (~et MWe):

• 635

8. If Changes Occur in Capacity Ratings (Items Number 3. Through 7) Since Last Report. Give Reasons:

9. Power Level To Which Restricted, If Any (Net MWe):

IO. Reasons For Restrictions, If Any:

(* This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 720 6,551 5~,462 12 . .:'\umber Of Hours Reactor Was Critical 299.2 3,152.8 32,552.2

13. Reactor Reserve Shutdown Hours 279.5 2,804.4 .30,636.6

14. Hours Generator On-Line

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH)

• 556,008 5,738,040 55,759,704

17. Gross Electrical Energy Generated (MWH) 156,830 1,680,100 17,266,710

18. ~et Electrical Energy Generated (MWH) 144,244 1,562,688 16,176,055

19. Unit Service Factor 38.8 42.8 51.5

20. Unit Availability Factor 42.8 51.5 38.8

21. Unit Capacity Factor (Using MDC Net) 31.5 37.6 42.8

22. Unit Capacity Factor (Using DER Net) 24.9 29.6 . 33;8

23. Unit Forced Outage Rate 61.2 25.1 39.3

24. Shutdowns Scheduled Over Next 6 Months (Type. Date. and Duration of Each):

25. If Shut Down At End Of Report Period, Estimated Date of Startup:

26. Units In Test Status (Prior to Commercial Operation): Forecast Achieved c INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

• Based on Condenser Backpressure Lim~SffAons

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

UNIT NAME 50-255 Palisades DATE 10-4-78 COMPLETED BY REPORT MONTH Sept* 1978 TELEPHONE

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19 78-09-01 F 267.0 A 1 N/A N/A N/A CRDM Seal and *pep Seal Replacem!'!nt 20 780913 F 78.9 A 1 N/A N/A N/A CRDM Seal Replacement 21 780922 F 94.6 A 1 N/A N/A N/A CRDM Seal' Replacement 3 4 F: Forced Reason: Method: Exhibit G *Instructions S: Scheduled A-Equipment Failure (Explain) I-Manual for Preparation of Dat:i B*Maintcnance of Test 2-Manual Scram. Entry Sheets for Licensee' C'*Rcfucling 3*Automatic Scram. Event Report (LER) File (NUREG*

D-Rcgulatory Rest ril:tion 4*0ther (Explain) 0161)

E-Operator Training & License Examination f*Administrnlive 5 G-Opcrational Error (Explain) Exhibit I

• Same Source (lJ/77) II-Other (Explain)

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. AVERA GE DAILY UNIT POWER LEVEL

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( DOCKET NO.

50-255 Palisades UNIT DATE 10-4-78 DIBollnow COMPLETED BY TELEPHONE 616-764-8913 MONTH September*

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 17 236 2 18 555 577 3 19 4 20 570 5 21 673 564 6 22 c 7 8

23 24 9 25 10 26 133 428 11 27 374 687 12 28 381 699 13 29 714 14 30 15 31 45 16 INS1RUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting 1mmth. Compute to the nearest whole megawatl.

C. (9/77)

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CONSUMERS POWER COMPANY PALISADES NUCLEAR PLANT DOCKET NO. 50-255

SUMMARY

OF OPERATING EXPERIENCE FOR SEPTEMBER 1978 9-1-78 At the beginning of the month, the plant was shutdo~m in continuation of an outage which began on August 28, 1978.

9-1-78 Amendment 42 to the Palisades Operating License was issued by the NRC. This amendment related primarily to fire protection equipment and plant modifications associated with fire protection.

9-8-78 Amendment 43 to the Palisades Technical Specifications was issued by the NRC. This amendment changed the specifications relating to axial power distribution limits.

9-12-78 The plant was returned to power operation, ending an outage of 267 hours0.00309 days <br />0.0742 hours <br />4.414683e-4 weeks <br />1.015935e-4 months <br /> duration. During the outage, seven CRDM Seals were replaced, and the seals for primary coolant pumps B and D were replaced. Because of a malfunction to the newly installed seal in the B primary coolant pump, the seal required a second replacement during the outage. In addition to the above, a weld repair was performed to correct leakage in the Chemical and Volume Control System (CVCS) letdown line.

9-13-78 The plant was shutdown to permit repairs to the seal of CRDM No. 39.

9-16-78 The plant was returned to power operation, ending an outage of 78.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> duration. In addition to CRDM No. 39, five other CRDM seals were replaced with rebuilt seals.

9-17-78 Because of the inability to withdraw CRDM No. 39, the rod's control fuses were removed and the rod was declared inoperable.

The drive mechanism failure mode indicated that the failure had occurred in the drive package, and that the rod had retained its tripping capability. Refer to LER 78-031.

9-22-78 The plant was shutdown to permit repairs to CRDM seals. The plant was returned to operation on September 26, after a 94.6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> outage. Six CRDM seals were replaced. The drive package for CRDM 39 was replaced, and the rod was restored to an operable status (LER 78-031).