ML18348A908

Transmittal of Monthly Operating Data, and Summary of Operating Experience for the Month of June 1978

ML18348A908
Person / Time
Site:	Palisades  (DPR-020)
Issue date:	07/11/1978
From:	Adams W Consumers Power Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML18348A908 (5)

Text

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consumers Power company Palisades Nuclear Plant: Route 2, Box 154, Covert, Michigan 49043 July 11, 1978 USNuclear Regulatory Commission Mail and Records Section Washington, D.C., 20555 Re:

LICENSE REPORT OF MONTHLY OPERATING DATA DPR-20, DOCKET NO. 50-255 Gentlemen:

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Enclosed is a copy of the Monthly Operating Data, and a Summary of Operating Experience for the Palisades Nuclear Plant for the month of June 1978.

Note a correction in the Hours Critical.

This is due to an error on the April 1978 return.

Corrected figures reflect an additional 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> critical for April.

WEAdams General Engineer cc:

JGKeppler, USNRC RBDeWitt DAB ix el GHPetitjean CVWaits DEVanFarowe, Div. of Radiological Lansing*, Mich.

AKozlowski, Mich. Dept. of Labor n£GUlAJORY DOCKET fllE COPY Health 1

RCallen, Mich. Public Serv. Comm., Lansing, Document Control -

(2) 950-22.35.10 Mich.

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OPERATING DATA REPORT OPER4.TING STATUS I. Unit Name:

Palisades

. 2.. Reporting Period:

3. Licensed Thermal Power (MWt):

4. Nameplate Rating (Gross MWe):

780601 to 780630 2530 811.7 805

• .635 S. Design Electrical Rating (Net MWe):

6. Maximum Dependable Capacity (Gross MWe):

7. Maximum Dependable Capacity (Net MWe):

• 675 Notes DOCKET NO.

50-255 DATE 7-7-78 COMPLETED BY DIBollnow TELEPHONE 616-764-8913

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):

10. Reasons For Restrictions, If Any:

11. Hours In Reporting Period

12. Number Of Hours Reactor Was Critical

13. Reactor Reserve Shutdown Hours

14. Hours Generator On-Line

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH)

17. Gross Electrical Energy Generated (MWH)

18. Net Electrical Energy Generated (MWH)

This Month 720.0 614.1 591.8 1,245,312 362,820.*

337,858

19. UnitServiceFactor 82.2%

20. Unit Availability Factor 82

• 2%

21. Unit Capacity Factor (Using MDC Net) 7 3

• 9%

22. Unit Capacity Factor (Using DER Net) 58

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23. Unit Forced Outage Rate

6. 9%

Yr.-to-Date Cumulati.ve 4 344

,57,254

-1,680.2** 31,079.6**

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1,386.8 2,844,624 842,880 784,576 31.9%

31.9%

29' 219:, 0 52,866,288 16,429,490 15 ;397 '943 51.0%

51.0%

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22.4%

33.4%

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21.2%

39.8%

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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 ln Test Status (Prior to Commercial Operation):

INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 7-4-78 Forecast Achieved

• - Based on Condenser Backpressure Limitations Reflects correction for Month of ApriL-(Additional 3.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> critical)

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AVERAGE DAILY UNIT POWER LEV

• DOCKET NO.

50-255 UNIT Palisades 7-7-78 DATE COMPLETED BY DIBollnow TELEPHONE 764-8913 MONTII June 197-8 DAY AVERAGE DAILY POWER LEVEL DAY A VERA GE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 623 17 588 2

640 18 205 3

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19 599 646 599

• 4 20 5

645 21 605 89 615 6

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609 7

23 8

304 24 602 650 592 9

25 630 572 IO 26 l l 544 27 56.q 191 529 12 28 13 309 29 14 348 30 536 15 31 16 606 INSTRUCTIONS 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.

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lQ 780608 11 780611 12 780613 13 780618 14 780628 2

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UNIT SHUTDOWNS AND POWER REDUCTIONS

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5.0 A

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5.8 A

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13.0 A

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8.2 A

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Reason:

A-Eq uipmcnt Failure (Explain)

B-Maintenance or Test C'-Refueling D-Regulatory Restril:tion REPORT MONTH Licensee Event Report#

78-019/0IT-0 N/A N/A N/A N/A N/A N/A

3.

E-Operator Training & License Examination F-A<lmini.strativc

. G-Opcra ti on al Error (Explain)

I I-Other (Explain)

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I-Manual 2-Manual Scram.

3-Automatic Scram.

4-0ther (Explain)

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DOCKET NO.

50"'."255 Palisades 7-7-78 DTBallnow UNIT NAME DATE COMPLETED BY TELEPHONE 616-764-8913 Cause & Corrective Ac.:tion to Prevent Recurrenc.:e Inoperable Control Rod Drive.

The drive assembly was replaced.

Low Steam Generator Water Level Low Steam G~nerator Water Level MSIV closure, turbine tripped manually Low Steam generator Water Level Lightening Strike Excessive leakage *from CRDM seals 4

5 Exhibit G. Inst ructions for Preparation of Data Entry Sheets for Licensee Event Report (lER) File (NUREG*

{) 161)

Exhibit 1. - Same Soun.:~

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CONSUMERS POWER COMPANY PALISADES NUCLEAR PLANT DOCKET 50-255

SUMMARY

OF OPERATING EXPERIENCE FOR THE PERIOD JUNE 1 THROUGH JUNE 30, 1978 General Except for the outages discussed below, the plant operated in the range of 80%

to 90% of full power during the month.

The derate was due primarily to turbine backpressure considerations, although fuel power peaking prevented power levels above 95%, and MSIV closure problems resulted in a self-imposed limit of approximately 90%.

(MSIV closure problems are discussed in the May Operating Summary.)

Specific Items of Interest 6-6-78 6-7-78 6-8-78 6-11-78 6-13-78 6-18-78 6-28-78 As a result of an inop-erable Control Rod Drive discovered during testing, the plant was shutdown.

The drive package was replaced, and the plant was put back on line after a 35.8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> outage.

Refer to LER 78-019.

Feedwater pump problems resulted in a low steam generator water level which caused a reactor trip.

The plant was off-line for 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />.

The reactor tripped on low steam generator water level which again was caused by Feedwater pump problems.

The plant was off-line for 5.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

Closure of the main steam isolation valves resallited in a manual trip of the turbine which in turn caused a reactor trip.

The MSIV closure was caused by low pressure in the air supply to the valve operator.

This closure appears to be unrelated to the closures reported during the month of May.

This outage lasted 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />.

Feedwater pump problems resulted in low steam generator water level which caused a reactor trip.

The plant was off-line for 8.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

An electrical storm caused opening of the output breakers, which in turn resulted in a reactor trip.

The outage lasted 11.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />.

Because of excessive leakage from CRDM seals, the reactor was manually shutdown and brought to a cold shutdown condition.

During this outage, six CRDM seals were replaced; and CRDM #8, which previously had been stuck, was returned to an operable con-dition.

The fault in CRDM #8 was determined to be mechanical binding in the drive mechanism.

This outage lasted for 48.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />.