ML20111B280

Monthly Operating Repts for Apr 1996 for Prairie Island Nuclear Generating Plant

ML20111B280
Person / Time
Site:	Prairie Island
Issue date:	04/30/1996
From:	Dugstad D, Wadley M NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9605140308
Download: ML20111B280 (9)

Text

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1 Northern States Power Company 1717 Wakonade Drive East Welch, MN 55089 Telephone 612-388-1121 May 6,1996 Pralrie Island Technical Specifications Section 6.7.A.3 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 Monthly Operating Report Aoril 1996 i

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

kl Michael D Wadley Plant Manager Prairie Island Nuclear Generating Plant c:

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

140143 9605140308 960430 PDR ADOCK 05000202 I

R PDR

ll PRINTED OS02/96 NRC MONTHLY REPORT Page1 i

DOCKET NO. 50-262 UNIT PRAIRIE ISLAND NO.1 a-DATE OG02/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612-3661121-4376 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: APRIL 1996 For April Unit 1 was base loaded, there were no shutdowns or power reductions.

There were 719 hours0.00832 days <br />0.2 hours <br />0.00119 weeks <br />2.735795e-4 months <br /> in the reposting period due to Daylight savings time change.

I i

i l

1 l

CURRENT CONTINUOUS OPERATING RUN OF 58 DAYS

PRINTED 0502/96 NRC MONTHLY REPORT Page 2 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 0502/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 AVERAGE DAILY POWER LEVEL UNIT 1 MONTH: APRIL 1996 DATE AVERAGE DAILY POWER LEVEL 04/01/96 520 04/02/96 523 4

04/03/96 521 04/04/96 518 04/05/96 521 04/06/96 521 04/07/96 526 1

04/08/96 521 04/09/96 519 04/10/96 519 04/11/96 518 04/12/96 521 i

04/13/96 521 04/14/96 524 04/15/96 520 04/16/96 521 04/17/96 521 j

04/18/96 516 04/19/96 522 04/20/96 513 f

04/21/96 514 04/22/96 510 j

04/23/96 512

^

04/24/96 508 04/25/96 510 04/26/96 516 04/27/96 518 04/28/96 515 04/29/96 508 04/30/96 512 i

AVERAGE LOADS ABOVE 513 MWE-NET ARE DUE TO COOLER CONDENSER CIRCULATING WATER i

i w

ow--

1 PRINTED 05/02/96

'NRC MONTHLY REPORT Page 3 DOCKET No. 50-282 i

UNIT PRAIRIE ISLAND NO.1 DATE 05/02/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612 388-11214376

)

i OPERATING DATA REPORT OPERATING STATUS

1. UNIT NAME:

PRAIRIE ISLAND NO.1

2. REPORTING PERIOD; APRIL 1996

3. LICENSED THERMAL POWER (MWT): 1650

4. NAMEPLATE RATING (GROSS MWE):

593 4

5. DESIGN ELECTRICAL RATING (NET MWE): 530

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

545

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

513 7

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 a

i THIS MONTH YR-TO-DATE CUMULATIVE 4

11. HOURS IN REPORTING PERIOD 719 2903 196127

12. NUMBER OF HOURS REACTOR CRITICAL 719.0 1532.9 167892.2

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 5571.1

14. HOURS GENERATOR ON-LINE 719.0 1!.08.0 166201.9

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0 ')0 0.00

16. GROSS THERMAL ENERGY GENERATED (MWH) 1185798 2376912 263530395

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 305020 706270 86019980

18. NET ELECTRICAL ENERGY GENERATED (MWH) 372186 746568 81720873

19. UNIT SERVICE FACTOR 100 52 84.7

20. UNIT AVAILABILITY FACTOR 100 52 84.7

21. UNIT CAPACITY FACTOR ( MDC NET) 100.9 50.1 82.6

22. UNIT CAPACITY FACTOR ( DER NET) 97.7 48.5 78.6

23. UNIT FORCED OUTAGE RATE 0

0 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 l

26. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

N/A

i PRINTED 0502/96 NRC MONTHLY REPORT Page 4 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 0502/96 COMPLETED BY DALE DUGSTAD TELEPHONE 6124881121-4376 i

UNIT SHUTDOWNS AND POWER REDUCTIONS MONTH: APRIL 1994 DATE UNIT TYPE,

HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 04/01/96 i

None O

NOTES:

b 112E REASON METHQQ SYSTEM CODE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT lEEE STD S-SCHEDULED B44AINTENANCE OR TEST 24AANUAL TRIP C-REFUEUNG 3-AUTO TRIP D-REGULATORY RESTRICTION 4-CONTINUED E OPERATOR TRAINING AND 5-REDUCED LOAD COMPONENT CODE UCENSE EXAMINATION MTHER lEEE STD 803A-1983 F ADMINISTRATIVE G-OPERATIONAL ERROR H-OTHER i

c

PRINTED 0502M NRC MONTHLY REPORT Page5 DOCKET NO. 50306 UNIT PRAIRIE ISLAND NO. 2 DATE 0502M COMPLETED BY DALE DUGSTAD TELEPHONE 612 388-1121437e NARRATNE

SUMMARY

OF OPERATING EXPERIENCE MONTH: APRIL 1996 For April Unit 2 was base loaded, there was a shutdown.

On Thursday, April 18 at 1916 the Unit tripped due to loss of air to the Feedwater Regulating Valves. The loss of air was due to an instrument air dryer valve failure.

After repairs the reactor was taken critical on the 19th at 2102 and the generator was placed on-line at 2307 of the 19th.

There were no other problems.

There were 719 hours0.00832 days <br />0.2 hours <br />0.00119 weeks <br />2.735795e-4 months <br /> in the reporting period due to Daylight savings time change.

'j l

CURRENT CONTINUOUS OPERATING RUN OF 11 DAYS

)

PRINTE0 05/02/96 NRC MONTHLY REPORT Page6 DOCKET NO. 50306 UNIT PRAIRIE ISLAND NO. 2 DATE 05/02/96 COMPLETED BY DALE DUGSTAD TELEPHONE 612-388-1121-4376 J

AVERAGE DAILY POWER LEVEL 1

l MONTH: APRIL 1994 DAIE1 AVERAGE DAILY POWER LEVEL 04/01/96 526 04/02/96 528 04/03/96 526 04/04/96 528 04/05/96 524 04/06/96 525 04/07/96 531 04/08/96 524 04/09/96 523 04/10/96 521 04/11/96 519 04/12/96 523 04/13/96 525 04/14/96 525 04/15/96 522 04/16/96 520 J

04/17/96 520 04/18/96 409 04/19/96

-18 04/20/96 463 04/21/96 516 04/22/96 513 04/23/96 513 04/24/96 511 04/25/96 514 04/26/96 518 04/27/96 520 04/28/96 519 1

04/29/96 516 04/30/96 517 AVERAGE LOADS ABOVE 512 MWE-NET ARE DUE TO COOLER CONDENSER CIRCULATING WATER

~

PRINTE0 05/02/96 NRC MONTHLY REPORT Page 7 DOCKET NO. 50 306 UNIT PRAIRIE ISLAND NO. 2 DATE 0SV2MI COMPLETED BY DALE DUGSTAD TELEPHONE 612-368-11214376 1-OPERATING DATA REPORT OPERATING STATUS i

1. UNIT NAME:

PRAIRIE ISLAND NO. 2

2. REPORTING PERIOD:

APRIL 1996 4

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):

544

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

512

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 2

10. REASONS FOR RESTRICTIONS, IF ANY: NONE a

THIS MONTH YR TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 719 2903 187245

12. NUMSER OF HOURS REACTOR CRITICAL 693.2 2848.9 165657.9

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 1516.1

14. HOURS GENERATOR ON-LINE 691.1 2831.6 164221.1 I

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00

16. GROSS THERMAL ENERGY GENERATED (MWH) 1136280 4622640 261415709

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 379690 1557890 85459200 1

18. NET ELECTRICAL ENERGY GENERATED (MWH) 357508 1476397 80802061

19. UNIT SERVICE FACTOR 96.1 97.5 87.7

20. UNIT AVAILABILITY FACTOR 96.1 97.5 87,7

21. UNIT CAPACITY FACTOR ( MDC NET) 97.1 99.3 86.1

22. UNIT CAPACITY FACTOR ( DER NET) 93.8 96 81.4

23. UNIT FORCED OUTAGE RATE 3.9 2.5 2.4

24. FORCED OUTAGE HOURS 27.9 71.4 4056.1

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

N/A

26. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

N/A

PRINTED 0503/96

'NRC MONTHLY REPORT Page 8 DOCKET NO. 50306 UNIT PRAIRIE ISLAND NO. 2 DATE 05CW6 COMPLETED BY DALE DUGSTAD TELEPHONE 612N11214376 UNIT SHUTDOWNS AND POWER REDUCTIONS MONTH: APRll,1996 DATE UNIT TYPE,

HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 27,9 A

3 2-96-02

' 04/18/96 2

F NOTES: Loss of Instrument Air due to failure of a valva.

d 4

HER REASON METHOD SYSTEM COQE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD S-SCHEDULED B-MAINTENANCE OR TEST 24AANUAL TRIP C-REFUELING 3-AUTO TRIP D-REGULATORY RESTRICTION 4 CONTINUED E-OPERATOR TRAINING AND 5 REDUCED LOAD COMPONENT CODE UCENSE EXAMINATION 9-OTHER IEEE STD 603A-1963 F-ADMINISTRATIVE GOPERATIONAL ERROR H.OTHER

.