ML20206P670

Monthly Operating Rept for Mar 1987

ML20206P670
Person / Time
Site:	Monticello
Issue date:	03/31/1987
From:	Musolf D, Myrabo A NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8704210245
Download: ML20206P670 (5)

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OPERATING DATA REPORT s

DOCKET NO. 50-263 DATE 4- 1-87 COMPLETED.BY A. L. Myrabo TELEPHONE 612/295-5151 ,

l OPERATING STATUS '

(Notes  ! ,

1. Unit Name : Monticello 1 1

2. Reporting period: MARCH 1  !

3. Licensed Thermal Power (MWt): 1670. I 1

4. Nameplate Rating (Gross MWe): 569- 1 1

5. Design Electrical Rating (Net MWe): 545.4 1 1

6. Maximum Dependable Capacity (Gross MWe): 564 1 1

7. Maximum. Dependable Capacity (Net MWe): - 536 1 J!

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): N/A

10. Reasons For Restrictions, If Any: __N/A '

This Month Yr.-to-Date Cumulative

.11. Hours In Reporting Period 744 2160 138073

12. Number Of Hours Reactor Was Critical 744.0 1996.6 107230.7 '

13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7

14. Hours Generator On-Line 744.0 1953.7 104898.1

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1224614 3163278 159805630 '

17. Gross Electrical Energy Generated (MWH) 415156 1075053 '

54253665

18. Net Electrical Energy Generated (MWH) - 399644 - 1033466 -~51880855

- 100.0%

19. Unit Service Factor 90.4% 76.0%-

20. Unit Availability Factor - 100.0% 90.4% 76.0%

21. Unit Capacity Factor (Using MDC Net) [ 100.2%

89.3% 70.1% ,

22. Unit Capacity Factor (Using DER Net) ___ 98.5% 87.7% 68.9%

22. Unit Forced Outage Rate 0.0% 3.9% 4.6%

24. Shutdowns Scheduled Over Next 12 Months TType, Date, and Duration of Each)

__1987 refueling outage - October 21, 1987 - 42 days

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

26. Units In Test Status (Prior to Commercial Operation): N/A Forecast Achieved ,

INITIAL CRITICALITY INITIAL ELECTRICITY l COMMERCIAL OPERATION 87042)hhhk h PDR Ngfkl s\\ l

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-263 UNIT Monticello ~~

DATE 4- 1-87 COMPLETED BY A. L. Myrabo TELEPHONE 612/295-5151 MONTH MARCH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) i 1 537 17 545 2 545 18 544 3 548 19 545 4 500 20 544 5 447 21 543 6 545 22 542 7 550 23 543 8 535 24 544 9 545 25 543 -

10 548 26 544 11 542 27 545 12 547 28 545 13 546 29 542 14 471 30 547 5

15 542 31 546 16 544 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.

+ -.

-NARRATIVE"

SUMMARY

OF OPERATING. EXPERIENCE DOCKET NO. 50-263-4 DATE 4- 1-87 COMPLETED BY A. L. Myrabo-TELEPHONE 612/295-5151 l

MONTH MARCH i

3 87 to Power operation.

3 87 .

3 87 Reduced power to repair CRD pump (s).

3 87

.to Power operation.

i 3 87 3 87 Reduced power to. repair condensate pump seal water line.

3 87

) to Power operation.

3 87 4

SPENT FUEL STORAGE UPDATE i

Fuel assemblies in core 484

Fuel assemblies in spent fuel storage pool 284

Licensed capacity 2237 Date of last refueling that can be 2010 discharged with present capacity

! Note: Power operation defined as essentially 100% of rated power except for weekend load drops for  !

specified surveillance testing.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCEET NO. 50-263 .,<

UNIT NAME Monticello DATE February 2, 1987 COMPLETED 1BT A. L. MYRA50 REPORT MONTH /ebruary TELEPHONE 612/295-5151 No. Date Type Duration Reason Method ~ LER System Comp. Cause & Corrective (1) (hours) (2) of No. Code Code Action to shutdown (4) (5) Prevent Recurrence (3) 7 3- 4-87 F 0.0 A 4 N/A AA P Reduced reactor power to 25% in anticipation of CRD pump failure - Repaired standby pump, 1 2 3 4 F Forced Reason Methodt Draft IEEE Standard St Scheduled A-Equipment railure (Explain) 1-Manual 805-1984(P405-DS)'

3 Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram 5 D-Regulator' Restriction 4-Other (Explain) ZEEE Standard 803A-1983 T-Operator Training' & License Examination F-Administrative .

G-Operational Error (Esplain).

N-Other'(Explain) 4

,_...-_l . _ _ _ . . . _ _

....4 Northern States Power Company l

414 Nicollet Mall Minneapohs. Minnesota 55401 ,

Telephone (612) 330 5500 April 9, 1987 Monticello Technical Specifications Section 6.7.A.3 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Monthly Operating Report April, 1987 Attached is the Monthly Operating Report for March, 1987 for the Monticello Nuclear Generating Plant.

D D b-%.

David Musolf Manager of Nuclear Support Services DMM/MMV/ dab c: Director, Office of Resource Management Regional Administrator-III, NRC NRR Project Manager, NRC NRC Resident Inspector MPCA Attn: J W Ferman Attachment

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