ML18043A672

Monthly Operating Rept for Apr 1979

ML18043A672
Person / Time
Site:	Palisades
Issue date:	05/07/1979
From:	Bodtke P CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18043A671	List: ML18043A670 ML18043A672
References
MOR-790430, NUDOCS 7905150416
Download: ML18043A672 (4)

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OPERATING DATA REPORT OPERATING STATUS

l. Unit Name:

Palisades

_ 2. Reporting Period:

790401 790430

3. Licensed Thermal Power (MWt):

2530 811. 7

4. Nameplate Rating (Gross MWe):

5. Design Electrical Rating (Net MWe):

-805

6. Maximum Dependable Capacity (Gross MWe): *_6_7_5 _____ _

7. Maximum Dependable Capacity (Net MWe): * *_6_3_5 _____ _

Notes DOCKET NO. 50-255 DATE May 7, 1979 COMPLETED BY PJBodtke 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:

This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period

• • 719 2879

-64.-550

12. Number Of Hours Reactor Was CritiCal 626.5 2739.6 36,935.5

13. Reactor Reserve Shutdown Hours

14. Hours Generator On-Line 586.5 2681. 7 34,863.5

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 1,371,072 6,562,968 66,027,600

17. Gross Electrical Energy Generated (MWH) 422!980 1~986,700 20,378.340

18. Net Electrical Energy Generated (MWH) 398,484 1,881,632 19,il9,143

19. Unit Service Factor 81.6 93.2 54.0

20. Unit Availability Factor 81.6 93.2

54. 0

21. Unit Capacity Factor (Using MDC Net) 87.3 102.9

. 46. 6

22. Unit Capacity Factor (Using DER Net) 68.9 81.2 36.8

23. Unit Forced Outage Rate 18.4 6.9 37.3

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

Refueling scheduled for. late7_*summer, 2~ months

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

M-'-a__,,_y_1_2'--. -=1:....:9-'7-=9--' _______ _

26. Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

• Based on Condenser Ba_ckpressure. Limitations

• • Less 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> due to Daylight Savings Time

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.ERAGE DAILY UNIT POWER LEVEL e MONTH April, 1979' DAY A VERA GE DAILY POWER LEVEL (MWe-Net) 725 2

724 3

728 4

728 5

723 6

704 7

242 8

9 10 157 11 646 12 701 13 707 14 717 15 717 16 722 INSTRUCTIONS DAY 17 18 19 20 21 22 23 24 25 26 27 28 29

,30 31 DOCKET NO.

UNIT DATE COMPLETED BY TELEPHONE 50-255 Palisades May 7, 1979 PJBodtke 616-764-8913.

A VERA GE DAILY POWER LEVEL (MWe-Net)

• 717 723 715 713 718 724 717 699 252 263 717 704 On this format, list the average daily unit power levehn MWe-Net for each*day in the reporting ITilrnth: Compute to *

• the nearest whole megawatt.

(9/77)

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• • No:.

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6 Date 790407 790425 790430 F: Forced S: Scheduled (lJ/77) 2 I~~+~\\

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORTMONTH April, 1979 F

67.0 A

3 F

42.2 A

3 F

23.3 A

3 Reason:

A-Equipment Failure (Explain)

B-Maintenance of Test C'-Ref ueling D-Regulatory Restrktion Licensee Event lleport #

NA NA NA E-Opcrator Training & License Examination F-Administrative G-Opcrational Error (Explain)

H-Othcr (Explain) 3 NA NA NA Method:

I-Manual t::

Q)lrl t::

Q) 0 "O

.0. '.)

Eu 0 u NA NA NA 2-Manual Scram.

3-Automatic Scram.

4-0ther (Explain)

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l DOCKET NO. 50-255 UNIT NAME DATE COMPLETED BY TELEPHONE Palisades May 8, 1979 PJBodtke 616-764-8913

.*cause & Correc;tive Action to Prevent Recurrence Feedwater pump trip caused the reactor to trip on low S/G level.

Loss of generator load due to mal-function of the voltage regulator.

Voltage regulator malfunction resulted in a loss of load condition.

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Exhibit G - Instructions for Preparation of Data Entry Sheets for Licensee Event Report (LER) File (NUREG-0161)

• Exhibit 1 - Same Source

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Consumers Power Company Palisades Nuclear Plant Docket No. 50-255 General 4-7-79 4-25-79 4-30-79

SUMMARY

OF SHUTDOWN EXPERIENCE FOR APRIL 1979 With exception noted below, the plant qperated at a nominal 97%

of rated thermal power during April.

Feedwater pump tripped due to spurious vibration trip signal.

The reactor tripped from low steam generator water level.

The outage lasted 67.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />.

The trip was caused by a defective component in the voltage regula-tor that resulted in a generator loss of load condition.

The outage lasted 42.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

An erratic voltage regulator (cause not yet known) resulted in a turbine trip.

The outage continues through this reporting period.

The outage hours for this reporting period is 23.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.