ML20237K386

Monthly Operating Rept for Apr 1987

ML20237K386
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	04/30/1987
From:	Malin L, Taylor J DAIRYLAND POWER COOPERATIVE
To:	NRC
References
LAC-12207, NUDOCS 8708190231
Download: ML20237K386 (5)

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l' OPERATING DATA REPORT t

DOCKET NO. 50-409 DATE 5/7/87  ;

COMPLETED BY L. Malin TELEPHONE 608-689-2331 l OPERATING STATUS

1. Unit Name: La Crosse Boiling Water Reactor j

2. Report Period: 0000, 04/01/87 to 2400, 04/30/87 j

3. Licensed Thermal Power (MWt): 165

4. Nameplate rating (Gross MWe): 65.3

5. Design Electrical Rating (Net MWe): 50 6 Maximum Dependable Capacity (Gross MWe): 50 daximum Dependable Capacity (Net MWe): 48

8. If Changes Occur in Capacity Ratings (Items 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 Year-to-Date Cumulative i

11. Hours In Reporting Period 719 2,879 153,362 ]

12. Number of Hours Reactor Was Critical 704.2 2,805.4 103,287.5

13. Reactor Reserve Shutdown Hours 0 0 517.2

14. Hours Generator On-Line 704.1 2,775.6 96,274.6

15. Unit Reserve Shutdown Hours .

0 0 120.5

16. Gross Thermal Energy Generated (MdH) 107,296.8 434,925.1 13,452,146.2 1 l 17. Gross Electrical Energy Generated (MWH) 33,419 136,432 4,046,923

18. Net Electrical Energy Generated (MWH) 31,534 129,060 3,754,984

19. Unit Service Factor 97.9 96.4 62.8

20. Unit Availability Factor 97.9 96.4 62.9

21. Unit Capacity Factor (Using MDC Net) 91.4 93.4 51.0

22. Unit Capacity Factor (Using DER Net) 87.7 89.7 49.0

23. Unit Forced Outage Rate 0 3.1 11.7

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: Permanent Shutdown

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

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s AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-409 UNIT LAC 3WR DATE 05/07/87 COMPLETED BY- L. S. Goodman

! TELEPHONE 608-689-2331 )

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l MONTH APRIL i

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 50 17 49 4 2 50 18 49 i

3 50 19 48 4 50 20 33 i

5 48 21 24

! 6 36 22 33 7 26 23 45 1 I

8 39 24 48 9 48 25 48  !

10 49 26 49 11 49 27 48 12 49 28 48 13 49 29 48 14 49 30 8 15 49 31 NA 16 49 Instruction l

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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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE April 1987 1

The La Crosse Boiling Water Reactor was permanently shut down on April 30, 1987.

At the onset of the April 1987 reporting period, the reactor was operating at 99% Rated Thermal Power (50 MWe-net). At 1415 on April 6, the 1A Forced

. Circulation Pump tripped due to a seal injection system perturbation. Power was reduced to'approximately 27%. The 1A recirculation. loop was placed back in service at 1900 on April 6. Power was escalated until April 9, when 98-99%

power (49 MWe-net) was achieved. ^{

On April 20, reactor power was reduced to 52% to allow cleaning of.  ;

condenser water boxes. Upon completion of the job, power was re-escalated. On )

April 23, 97-98% power (48 MWe-net) was achieved. ]

At 0000 on April 30, the final shutdown of the La Crosse Boiling Water .

>. 1' Reactor was initiated. 'At 0905, the turbine generator was' disconnected from the Dairyland Power Cooperative grid. All control rods were fully inserted at 0910 .

l on April 30.

During the month'of April, maintenance was performed on the 1B Shutdown Condenser Steam. Inlet Valve, the IB High Pressure Service Water Pump pressure switch and the High Pressure Service Water line. A Type B leakage test was ,

performed'on the personnel airlock. No leakage was measured.

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. j D DA/RYLAND hh/M[ COOPERAT/VE e o eOx si7 2615 EAST AVE. SO . LA CROSS I (608) 788-4000 JAMES W. TAYLOR I General Manager May 7, 1987 In reply, please refer to LAC-12207 DOCKET NO. 50-409 1,

Office of Management Information and Program Control U. S. Nuclear Regulatory Commission Washington, DC 20555

SUBJECT:

DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)

PROVISIONAL OPERATING LICENSE NO. DPR-45 MONTHLY OPERATING DATA FOR APRIL

REFERENCES:

1) NRC Letter, Reid to Madgett,-

dated September 19, 1977.

2) NRC Letter, Reid to Madgett, dated December 29, 1977. I Gentlemen:

In accordance with instructions contained in Reference (1) and Technical Specification Amendments contained in Reference (2), we are submitting information concerning operability and availability of the La Crosse Boiling Water Reactor (LACBWR) for the Month of April.

Please contact us if there are any questions concerning this report.

Sincerely, DAIRYLAND POWER COOPERATIVE ,

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. James W. Taylor General Manager JWT:LSG:sks cc: J. G. Keppler, Regional Administrator, NRC-DRO-III Roby Bevan, LACBWR Project Manager NRC Resident Inspector  !

D. Sherman (ANI Library)

INPO PCl-27 3[:p l

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