ML20101N893

Monthly Operating Repts for Mar 1996 for Prairie Island Nuclear Generating Plant Units 1 & 2

ML20101N893
Person / Time
Site:	Prairie Island
Issue date:	03/31/1996
From:	Dugstad D, Wadley M NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9604090180
Download: ML20101N893 (9)

Text

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Northern States Power Company l

1717 Wakonade Drive East Welch, MN 55089 Telephone 612-388-1121 April 3,1996 Prairie island Technical Specifications Section 6.7.A.3 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRA!RIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60

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Monthly Operating Report March 1996 Attached is the Monthly Operating Report for March 1996 for the Prairie Island Nuclear Generating Plant.

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Michael D Wadley Plant Manager Prairie Island Nuclear Generating Plant l

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Regional Administrator-Ill, NRC NRR Project Manager, NRC NRC Resident inspector State of Minnesota - Kris Sanda Attachment I

9604090180 960331 l

PDR ADOCK 05000282 R

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NRC MONTHLY REPORT PRINTED O@02/96 Page1 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 0402/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612N1121-4376 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: MARCH 1996 For March, Unit i retumed to service from the refueling and maintenance outage that started on January 5th. The reador was taken critical on the 3rd at 0126 and the generator was placed online on the 3rd at 2358.

This ended an outage of 58 days,2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and 5 minutes. The Unit reached full power operation on the 8th at 1713.

At the end of the month the cooling towers were placed in service.

CURRENT CONTINUOUS OPERATING RUN OF 28 DAYS

NRC MONTHLY REPORT PRIN TED OWO2/96 Page 2 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE ON02/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612N1121-4376 AVERAGE DAILY POWER LEVEL UNIT 1 MONTH: MARCH 1996 Q&Ig1 AVERAGE DAILY POWER LEVEL 03/01/96

-18 03/02/96

-17 03/03/96

-18 03/04/96 105 03/05/96 264 03/06/96 344 03/07/96 435 03/08/96 513 03/09/96 532 03/10/96 530 03/11/96 532 03/12/96 532 03/13/96 531 03/14/96 531

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03/15/96 531 03/16/96 531 03/17/96 531 03/18/96 530 03/19/96 530 03/20/96 530 03/21/96 530 03/22/96 528 03/23/96 533 03/24/96 531 03/25/96 530 03/26/96 532 j

03/27/96 528 03/28/96 529 03/29/96 S19 03/30/96 527 03/31/96 524 A'vE%GE LOADS ABOVE 513 AMNE-NET ARE DUE TO COOLER CONDENSER CIRCULATING WATER

NRC MONTHLY REPORT PRINTE0 0402/96 Page 3 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 04/02/96 COMPLETED BY DALE DUGSTAD 1

TELEPHONE 612488-1121-4376 i

OPERATING DATA REPORT OPERATING OTATUS

1. UNIT NAME:

PRAIRIE ISLAND NO.1

2. REPORTING PERIOD:

MARCH 1996

3. LICENSED THERMAL POWER (MWT): 1650

4. NAMEPLATE RATING (GROSS MWE):

593

5. DESIGN ELECTRICAL RATING (NET MWE): 530

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

545

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

513

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 - 7) SINCE LAST REPORT, GIVE REASON:

NONE

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE): NONE

10. REASONS FOR RESTRICTIONS. IF ANY: NONE THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 2184 195408

12. NUMBER OF HOURS REACTOR CRITICAL 694.6 813.9 167173.2

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 5571.1

14. HOURS GENERATOR ON-LINE 672.0 789.9 165482.9

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00

16. GROSS THERMAL ENERGY GENERATED (MWH) 1039869 1191114 262344597

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 350250 401250 86524960

18. NET ELECTRICAL ENERGY GENERATED (MWH) 330926 374382 81348687

19. UNIT SERVICE FACTOR 90.3 36.2 84.7

20. UNIT AVAILABILITY FACTOR 90.3 36.2 84.7

21. UNIT CAPACITY FACTOR ( MDC NET) 86.7 33.4 82.6

22. UNIT CAPACITY FACTOR ( DER NET) 83.9 32.3 78.5

23. UNIT FORCED OUTAGE RATE O

O 4.7

24. FORCED OUTAGE HOURS 0.0 0.0 8125.9

25. SHUTDOWNS SCHEDULED OVER NEXT SIX MONTHS (TYPE, DATE, AND DURATION OF EACH):

N/A

26. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

N/A

NRC MONTHLY REPORT PRINTED 0402/96 Page 4 DOCKET No. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 0402/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 UNIT SHUTDOWNS AND POWER REDUCTIONS l

l MONTH: MARCH 1996 i

DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 03/01/96 1

S 72 C

4 N/A Fuel NOTES:

Refueling & Maintenance Outage (outage started on Jan. 5th.)

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l HER REASON METHOD SYSTEM CODE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD S-SCHEDULED B-MAINTENANCE OR TEST 244ANUAL TRIP C-REFUELING 3-AUTO TRIP D-REGULATORY RESTRICTION 4-CONTINUED E-OPERATOR TRAINING AND 5-REDUCED LOAD COMPONENT CODE UCENSE EXAMINATION 94THER lEEE STD 803A 1983 F-ADMINISTRATIVE G-OPERATIONAL ERROR H4THER

NRC MONTHLY REPORT PRINTED 0402/96 Page5 DOCKET NO. 50306 UNIT PRAIRIE ISLAND NO. 2 DATE o&O2116 COMPLETED BY DALE DUGSTan TELEPHONE 612-388-1121 /J76 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: MARCH 1996 For March Unit 2 was base loaded, there was one shutdown.

On the 19th at 0011 the Unit tripped on 21 Steam Generator low low level. The trip was caused by a valve stem failure of 21 Feedwater Regulating Valve. After repairs were completed the reactor was taken critical on the 20th at 0429 and the generator was placed online on the 20th at 1944.

On the 20th at 2215 the power ascension was halted due to an oil leak on 22 Feedwater Pump coupling. This problem was corrected and the power ascension was resumed on the 21st at i

0311. The Unit reached full power operation on the 21st at 1316.

i The trip ended a continuous operating run of 265.9 days.

CURRENT CONTINUOUS OPERATING RUN OF 11 DAYS

l NRC MONTHLY REPORT PRINTED 040296 Page 6 DOCKET NO. 50 306 UNIT PRAIRIE ISLAND No. 2 DATE 0402/96 COMPLETED BY DALE DUGSTAD 1

TELEPHONE 612-38& 1121-4376 l

AVERAGE DAILY POWER LEVEL UNIT 2 MONTH: MARCH 1996 g&Ig1 AVERAGE DAILY POWER LEVEL 03/01/96 533 03/02/96 540 03/03/96 527 03/04/96 530 03/05/96 526 03/06/96 534

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03/07/96 527 03/08/96 528 l

03/09/96 528

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03/10/96 523 03/11/96 523 03/12/96 525 03/13/96 525 03/14/96 525 03/15/96 525 03/16/96 525 03/17/96 523 03/18/96 523 03/19/96

-13 03/20/96 16 03/21/96 442 03/22/96 521 03/23/96 526 03/24/96 526 1

03/25/96 526 i

03/26/96 528 03/27/96 522 03/28/96 524 03/29/96 513 03/30/96 530 03/31/96 529 l

AVERAGE LOADS ABOVE 512 MWE-NET ARE DUE TO COOLER CONDENSER CIRCULATING WATER

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NRC MONTHLY REPORT PRINTED 04/02/96 i

Pa08 7 l

DOCKET No. 50 306 UNIT PRAIRIE ISLAND NO. 2 l

DATE 04/02/96 l

COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 l

l OPERATING DATA REPORT OPERATING STATUS 1

j

1. UNIT NAME:

PRAIRIE ISLAND NO. 2

2. REPORTING PERIOD:

MARCH 1996 l

3. LICENSED THERMAL POWER (MWT): 1650 l

4. NAMEPLATE RATING (GROSS MWE):

593

5. DESIGN ELECTRICAL RATING (NET MWE): 530

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

544 l

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7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

512

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 - 7) SINCE LAST REPORT, GIVE REASON:

NONE j

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE): NONE

10. REASONS FOR RESTRICTIONS, IF ANY: NONE 1

IHIS MONTH YR-TO-DATE CUMULATIVE I

11. HOURS IN REPORTING PERIOD 744 2184 186526

12. NUMBER OF HOURS REACTOR CRITICAL 715.7 2155.7 164964.7 j

13. REAC, TOR RESERVE SHUTDOWN HOURS 0.0 0.00 1516.1

14. HOURS GENERATOR ON-LINE 700.5 2140.5 163530.0

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00

16. GROSS THERMAL ENERGY GENERATED (MWH) 1144440 3486360 260279429

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 384060 1178200 85079510

18. NET ELECTRICAL ENERGY GENERATED (MWH) 364303 1118889 80444553

19. UNIT SERVICE FACTOR 94.2 98 87.7

20. UNIT AVAILABILITY FACTOR 94.2 98 87.7

21. UNIT CAPACITY FACTOR ( MDC NET) 95.6 100.1 86

22. UNIT CAPACITY FACTOR ( DER NET) 92.4 96.7 81.4 j

23. UNIT FORCED OUTAGE RATE 5.8 2

2.4

24. FORCED OUTAGE HOURS 43.5 43.5 4028.2 1

25. SHUTDOWNS SCHEDULED OVER NEXT SIX MONTHS (TYPE, DATE, AND DURATION OF EACH):

N/A

26. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

l N/A l

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NRC MONTHLY REPORT PRINTED 0402/96 Page8 DOCKET NO. 50306 UNIT PRAIRIE ISLAND NO. 2 DATE 0402/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 l

UNIT SHUTDOWNS AND POWER REDUCTIONS MONTH: MARCH 1996 1

l DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 03/19/96 2

F 43.5 A

3 2-96-01 NOTES: Failed stem on 21 Feedwater Regulating Valve 4

IEEE REASON METHOD SYSTEM CODE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT lEEE STD S-SCHEDULED B-MAINTENANCE OR TEST 2-MANUAL TRIP C-REFUELING 3-AUTO TRIP D-REGULATORY RESTRICTICN 4-CONTINUED E-OPERATOR TRAINING AND 5-REDUCED LOAD COMPONENT CODE LICENSE EXAMINATION 9-OTHER IEEE STD 803A-1983 F-ADMINISTRATIVE G-OPERATIONAL ERROR H-OTHER j