ML20003E959

Monthly Operating Repts for Mar 1981

ML20003E959
Person / Time
Site:	Prairie Island
Issue date:	04/01/1981
From:	Hunstad A NORTHERN STATES POWER CO.
To:
Shared Package
ML20003E957	List: ML20003E956 ML20003E959
References
NUDOCS 8104170557
Download: ML20003E959 (7)

Text

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O NARRATIVE SIXMARY OF OPERATING EXPERIENCE DOCKET NO. 50- 282 UNIT Prairie Island No. -1 DATE 810401 COMPLETED BY a- i_ u,,,,. m a TELEPHONE 612-388- 1121 l

MONTH March 1981 g The unit was base loaded this month; no shutdowns.

rE A

c SPENT FUEL STORACE UPDATE E

E Fuel assemblies in each core - No change

Fuel assemblies in the spent fuel storage pool - 401 Licensed spent fuel storage pool capacity - No change Date of last refueling that can be discharged with present capacity - No change g

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. - . - - . _ . - ____. . _ _ . . .. . . _ _ . . , _ _ _ . _ _ . _ _ _ _ . _ . - - , _ . , . _ . . , _ _ _ . . - , , _ _ , , _ _ . . . _ _ , _ - . _ - - ~ . _ . - . . _ _ , . _ -

DAILY UNIT POWER OUTPUT DOCKET NO. 50- 282 UNIT Prairie Island No. 1 DATE 810401 COMPLETED BY A. A. Hunstad TELEPHONE 612-388- 1121

1. ' l' 1 MONTH DAY AVERAGE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net g' 1 522 17 521 x

. 2 524 18 521 3

7 3 523 19 519

=

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? 4 523 20 519 5 525 21 518 6 523 22 517 7 523 23 516 8 523 24 517 9 485 25 514 10 518 26 511 11 520 27 512 i

l 12 518 28 511 l

13 520 29 511 14 487 30 * ~. 3 15 518 31 514 16 522 l

Average loads above 503 ;Ne-Net are due to cooler condenser circulating water.

I

OPERATING DATA REPORT DOCKET N0,50- 282 DATE 810401 COMPLETED BY A A. Hunstac OPERATING STATUS TELEPHONE 612-388-1121

1. Unit Name: Prairie Island No. 1

2. Reporting Period: March 1981 Notes

3. Licensed Thermal Power (MWt): 1650

4. Nameplate Rating (Gross We): 593

5. Design Electrical Rating (Net MWe): 530

6. Maximum Dependable Capacity (Gross We): 534  ;

g 7. Maximum Dependable Capp. city (Net MWe): 503

,- 8. If Changes Occur in Capacitp Ratings (Items Number 3 Through 7) Since Last Report:

S Give Reason:

8

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

N 10. Reasons for Restrictions, If Any: -

This Month Yr-To-Date Cumulative

11. Hours In Reporting Period 744 2160 63912

12. Number Of Hours Reactor Was Critical rAA n 2160.0 50327.1

13. Reactor Reserve Shutdown Hours 0.0 0.0 5538.1

14. Hou s Generator On Line 744.0 2160.0 49150.6

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1226346 3525324 76246005

17. Cross Electrical Energy Generated (WH) 408630 1176460 2832970

18. Net Electrical Energy Generated (MWH) 384188 1107836 23053443

19. Unit Service Factor 100.0 100.0 76.9

20. Unit Availability Factor 100.0 100.0 76.9 l

f 21. Unit Capacity Factor (Using MDC Net) 102.7 102.0 71.7

22. Unit Capacity Factor (Using DER Net) 97.4 96.8 68.1 l 23. Unit Forced Outage Rate 0.0 0.0 11.7 l

24 Shutdowns Scheduled over Next 12 Months (Type, Date and Duration of Each):

Refueling, September 1981, 6 weeks l 25. If Shut Down at End Of Report Period, Estimated Date of Startup:

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 8103.01 COMPLETED BY A. A. Hunstad TELEPHONE 612-388- 1121 -

MONTH March 1981 3 The refueling outage contined. Degradation of some steam generator tubes j was seen (R0 81-2). Both safety injection pumps were damaged slightly during

, testing due to valve misalignment. Further testing and maintenance on those two items extended the outage six days. Restart is projected for April 9th.

5 .

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DATLY UNIT POWER OUTPUT DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 810401 COMPLETED BY A. A. Hunstad TELEPHONE 612-388- 1121 MONTH DA_Y_ AVERAGE LOAD M'a'e-Ne t DAY AVERAGE LOAD M'a'e-Net s _

J l -3 17 -3 k

. 2 -3 18 -3 2

[ 3 -3 19 -3 s

@ 4 -3 20 -3 5 -3 21 -3 6 -3 22 -3 7 -3 23 -3 8 ,

-3 24 -3 9 -3 25 -3 10 -3 26 _

-3 11 -3 27 -3 12 -3 28 -3 13 -3 29 -3 14 -3 30 -3 l

15 -3 31 -4 16 -3 l

1 l

l Average loads above 500 MWe-Net are due to cooler condenser circulating water.

1 1

l 1

l

OPERATING DATA REPORT DOCKET NO 50- 306 DATE 810401 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-388-1121

1. Unit Name: Prairie Island No. 2

2. Reporting Period: ""

March 1981

3. Licensed Thermal Power (MWt): 1650

4. Nameplate Rating (Cross MWe): 593

5. Design Electrical Rating (Net MWe): 530

6. Maximum Dependable Capacity (Gross MWe): 531 g 7. bbximum Dependable Capacity (Net MWe): 500 g 8. If changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report: ,

$ Give Reason:

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

10. Reasons for Restrictions, If Any:

This Month Yr-To-Date Cunulative

11. Hours In Reporting Period 744 2160 55030

12. Number Of Hours Reactor Was Critical 0.0 1243.3 47625.1

13. Reactor Reserve Shutdown Hours 0.0 0.0 1508.0

14. Hours Generator On Line 0.0 1243.3 46814.2

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 0 2020274 73119264

17. Gross Electrical Energy Generated (MWH) 0 662310 234?l250

18. Net Electrical Energy Generated (MWH) 0 622499 21930402

19. Unit Service Factor 0.0 57.6 85.1

20. Unit Availability Factor 0.0 57.6 85.1

21. Unit Capacity Factor (Using MDC Net) 0.0 57.6 79.7

22. Unit Capacity Factor (Using DER Net) 0.0 54.4 75.2

23. Unit Fcrced Outage Rate 0.0 0.0 4.1

24. Shutdowns Scheduled Over Next 12 Months (Type, Date and Duration of Each):

25. If Shut Down at End Of Report Period, Estimated Date of Startup: 810409

o UNIT SIRITDOWNS AND POWER REDUCTIONS DOCKET NO, 50- 306 REPORT MONTil March 1981 UNIT NAME Prairie Island No. 2 DATE 810401 COMPLETED BY A. A. Ilunstad f

TELEPIIONE 612-388-_1121

- c n u ec1 Licensee a4 o Cause & Corrective Date $. O9 $ 00 Event 3 -$ 6o Action to N N$ $ oUN Report # $0 $0 Prevent Recurrence

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810221 S 744.0 C 2 N/A N/A N/A Refueling 5

m F: Forced Reason Method: Exhibit C-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for B-Maintenance or Test 2-Manual Trip Preparation of C-Refueling 3-Automatic Trip Data Entry Sheets D-Regulatory Restriction 4-Other (Explain) for Licensee Event E-Operator Training & License Examination Report (LER) File F-Administrative (NUREC-0161)

C-Operational Error (Explain) 5 li-Other (Explain Exhibit 1 - Same Source