ML20115A832

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Monthly Operating Repts for June 1996 for Prairie Island Nuclear Generating Plant Units 1 & 2
ML20115A832
Person / Time
Site: Prairie Island  
Issue date: 06/30/1996
From: Dugstad D, Wadley M
NORTHERN STATES POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9607090027
Download: ML20115A832 (9)
v • d • e


Text

Northern States Power Company 1717 Wakonade Drive East Welch, MN 55089 Telephone 612-388-1121 July 3,1996 Prairie Island Technical Specifications Section 6.7.A.3 e

a US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 Licer.se Nos. DPR-42 50-306 DPR-60 Monthly Operating Report June 1996 Attached is the Monthly Operating Report for June 1996 for the Prairie Island Nuclear Generating Plant.

O c-QJLc Michael D Wadley b

Plant Manager v

Prairie Island Nuclear Generating Plant c:

Regional Administrator-Ill, NRC NRR Project Manager, NRC NRC Resident inspector State of Minnesota - Kris Sanda 4

Attachment 9607090027 960630 -

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PDR ADOCK 05000282 R

PDR

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. NRC' MONTHLY REPORT P"MD 7888 Pe1 3

oocieTNo. mas j

uNrT PRAIRIElsLANo NO.1 oATE 72BB courtaTEo syonta ouasTAo TEUEPHONE et23ss 112145Fs 1

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MUUtATIVE SUMMUtY OF OPERATING EXPERIENCE c

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MONTH: JUNE 1998 i

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Unit 1 was base loaded, this month. On the 29th at 1429 the Unit tripped because the transmission lines were damaged (knocked down) due to severs weather. Crwws were sont out to repair the transmission system. A NUE was declared at 1505 due to plant condfilons and teminatad at 1035 I

on 6/30/1996. As a result of the event both reactor coolant pumps tripped and decoy heat was removered by natural circulation cooling. Forced circulation cooling was restored at 1953 hours0.0226 days <br />0.543 hours <br />0.00323 weeks <br />7.431165e-4 months <br /> when 12 restor coolant pump was started. Unit one's reactor was taken critical at 2301 of the 30th and is at Hot Standby waiting for the generator to be placed on-line. The plant was not able to put 4

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. the generator on-line by the end of the month because of equipment problems.

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This ended a continuous operating run of 117 days.

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CURRENT CONTINUOUS OPERATING RUN OF 0 DAYS J

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  • NRC WONTHLY REPORT PRINTED 7/398 Pues 2 DOCMET NO. 50 232 UNrT PRAWUEISLAND NO.1 1

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DATE 7/398 COMPu!TED BY DALE DUGSTAD TELEPHONE 012 38511214578 r

AVERAGE DAILY POWER LEVEL 4

MlET 1 MONTH: JUNE.1996 i

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AVERAGE DAILY POWER LL' VEL W1/96 506 j

6/2/96 507 6/3/96 507 6/4/96 511 i

6/5/96 510 6/6/96 500 6/7/96 535 6/8/96 508 6/9/96 502 i

6/10/96 501 6/11/96 501 2

6/12/96 506 6/13/96 498 8/14/96 500 j

6/15/96 501 6/16/06 503 6/17/96 503 6/18/96 508 6/19/96 512 6/20,96 509 l

6/21/96 511 4

6/22/96 512 6/23/96 511 6/24/96 514 6/25/96 512 5

6/26/96 507 6/27/96 506 6/28/96 506 6/29/96 299

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6/30/96

-13 r

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d AVERAGE LOADS ABOVE 513 MWE-NET ARE DUE TO COOLER CONDENSER CIRCUL.ATING WATER 4

. _ -.. -. - _ - =

. NRC' MONTHLY REPORT '

PRNiTED 7/398 Pages oOCNET NO.SME2 1

UNIT PRANUEISLANo NO.1

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DATE7/300 couPLEtno syoALE ouo: tao TELEPHONE 812 3851121-@6 4

OPERATING DATA REPORT t

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OPERATING STATUS i

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1. UNIT NAME.

PRAIRIEISLAND NO.1

2. REPORTING PERIOD:

JUNE 1996 i

3. LICENSED THERMAL POWER (MWT) 1650
4. NAMEPLATE RATING (GROSS MWE): 593 i
5. DESIGN ELECTRICAL RATING (NET MWE): 530
6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

545 7 MAXIMUM DEPENDABLE CAPACl1Y(NET MWE):

513

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

ME

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE): NONE
10. REASONS FOR RESTRICTIONS, IF ANY: NONE l

THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 720 4367 197501 j
12. NUMBER OF HOURS REACTOR CRITICAL 687.5 2964.4 169323.7
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 5571.1
14. HOURS GENERATOR ON-LINE 686.5 2939.4 167632.4
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00
16. GROSS THERME ENERGY GENERATED (MWH) 1131712 4727077 265880500
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 369840 1566320 87600030 l
18. NET ELECTRICAL ENERGY GENERATED (MWH) 347333 1470393 82444608
19. UNIT SERVICE FACTOR 95.3 67.3 84.8
20. UNIT AVAILABILl1Y FACTOR -

95.3 67.3 84.8 l

21. UNIT CAPACITY FACTOR ( MDC NET),

94 65.6 82.8

22. UNIT CAPACITY FACTOR ( DER NET) ~

91 63.5 78.7

23. UNIT FORCED OUTAGE RATE.

4.7 1.1 4.6

24. FORCED OUTAGE HOURS 33.5 33.5 8159.4 i
25. SHUTDOWNS SCHEDULED OVER NEXT SIX MONTHS (TYPE, DATE, AND DURATION OF EACH):

.N/A 4

26. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

July 1,1996 j

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l NRCWONTHLY REPORT PRINE 7/346 Peneo DoCxET NO.50 282 UNIT PRAIRIE ISLAND NO.1 DATE 7/3e8 COMPLETED BY DALE DUGSTAD TELEPNONE 012-308-11214378 1

UNIT SHUTDOWNS AND POWER REDUCTIONS i

MONTH: JUNE 1M6 i

DATE UNIT TYPE ilOURS REASON METHOD LER NUMBER SYSTEM COMPONENT S/29/96 1

F 33.5 H

3 NOTES:

Unit triped due to demaged transmission lines caused by strong winds.

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i DPE REASON METHOD SYSTEM CODE F-FOROED A-EQUlPMENT FAILURE 1-MANUAL DRAFT lEEE STD 54CHEDULED 5 MAINTENANCE OR TEST 244ANUAL TRIP C-REFUEUNG

3. AUTO TRIP D4tEGULATORY RESTRICTION
4. CONTINUED E4PERATOR TRAINING AND 54tEDUCED LOAD COMPOM!NT CODE i

UCENSE EXAMINATION MTHER IEEE STD 803A-1983 F-ADMINISTRATIVE G4PERATIONAL ERROR H4THER

i' ARC MONTHLY REPORT PRME 7/3ms Pepss l

DOCNET No.SD 30s UNIT PRAlmElsLANO NO.2 l

DATE7/Ses COMPLETED BY DAt2 DUOsTAD f

TELEPHONE et2 3ss.11214378 l

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE 1

l MONTH: JUNE 1996 Unit 2 was base loaded, this month. On the 29th at 1429 the Unit tripped because the transmission lines were damaged (knocked down) due to severs weather. Crows were sent out to sepair the transmission system. A NUE was declared at 1505 due to plant conditions and tenninated at 1035 on 6/30/96. As a result of the event, both reactor coolant pumps tripped and decay heat was removed by natural circulation cooling. Forced circulation cooling was restored at 2028 hours0.0235 days <br />0.563 hours <br />0.00335 weeks <br />7.71654e-4 months <br /> when 21 reactor coolant pump was restartedt Plant Operations determined to i

restore Unit 1before attempting to restore Unit 2. As of the end of the month Unit 2 is still off-line.

This ended a continuous operating run of 70 days.

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b CURRENT CONTINUOUS OPERATING RUN OF 0 DAYS

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NRC MONTHLY REPORT PRW E W S Page6 DOCMET NO.SNMM UNIT PRAIRIE ISLAND NO.2 OATE7/388 COMPu!TED BY DALE DUGSTAD TEUEPHCNE 01230811214378 AVERAGE DAILY POWER LEVEL a

UNIT 2 i

MONTH: JUNE 1998 DAIE; AVERAGE DAILY POWER LEVth.

6/1/96 506 6/2/96 511 6/3/06 512 6/4/96 515 6/5/96 513 6MI/96 511 6/7/96 509 6/6/96 512 6/9/96 506 6/10/96 504 6/11/96 502 6/12/96 505 6/13/96 499 6/14/96 501 I

6/15/96 502 6/16/96 502 6/17/96 504 6/16/96 507 6/19/96 512 6/20/96 510 6/21/96 510 6/22/96 512 6/23/96 511 6/24/96 514 l

6/25/96 509 1

6/26/96 505

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6/27/96 503 6/28/96 503 t

6/29/96 296 6/30/96

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e AVERAGE LOADS ABOVE 512 MWE. NET ARE DUE TO COOLER CONDENSER CIRCULATING WATER 8

NRC MONTHLY REPORT PMW MS Page 7

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DoexET No.so.aos UMT PMmE ISLAND NO.2 DATE 7/398 i

COMPLETED BY DALE DUG 8 TAD TELEPHONE 012 388-1121-43N, OPERATING DATA REPORT 1

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OPERATING STATUS

1. UNIT NAME:

PRAIRIE ISt.AND NO. 2

2. REPORTING PERIOD:

JUNE 1996

3. LICENSED THERMAL POWER (MWT). 1650
4. NAMEPl. ATE 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 4

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 - 7) SINCE 1.AST REPORT, GIVE REASON:

NONE

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWE): NONE
10. REASONS FOR RESTRICTIONS, IF ANY: NONE I

l THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 720 4367 188709
12. NUMBER OF HOURS REACTOR CRITICAL 686.5 4279.4 167088.4
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 1516.1 i
14. HOURS GENERATOR ON-LINE 686.5 4262.1 165651.6
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00
16. GROSS THERMAL ENERGY GENERATED (MWH) 1130160 6976800 263769869
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 370180 2332430 86233740
18. NET ELECTRICAL ENERGY GENERATED (MWH) 347962 2205131 81530795
19. UNIT SERVICE FACTOR 95.3 97.6 87.8
20. UNIT AVAILABILITY FACTOR 95.3 97.6 87.8
21. UNIT CAPACITY FACTOR ( MDC NET) 94.4 98.6 86.1 i
22. UNIT CAPACITY FACTOR ( DER NET) '

91.2 95.3 81.5

23. UNIT FORCED OUTAGE RATE 4.7 2.4 2.4
24. FORCED OUTAGE HOURS 33.5 104.9 4089.6
25. SHUTDOWNS SCHEDULED OVER NEXT SIX MONTHS (TYPE, DATE, AND DURATION OF EACH):

N/A

26. IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

N/A 4

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NRC MONTHLY REPORT PRINTED MOS Page 8 DOCNETNO. A108 UMT PRAIRIE ISLAND NO.2 DATE7/308 COMPLETED BY DALE DUGSTAD TELEPHONE 01238811214376 UNIT SHUTDOWNS AND POWER REDUCTIONS MONTH: JUNE 1998 DATE UNIT TYPt!

HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 6/29/96 2

F 33.5 H

3 NOTES: UnM triped due to demoged transmission lines caused by strong winds.

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M REASON METHOD SYSTEM CODE I

F-FORCED A-EQUIPMENT FAILURE 1 MANUAL DRAFTIEEE STD SSCHEDULED 8 MAINTENANCE OR TEST 244ANUAL TRIP C-REFUEUNG 3 AUTO TRIP (MtEGULATORY RESTRICTION 4-CONTINUED E-OPERATOR TRAINING AND

!WtEDUCED LOAD COMPOfENT CODE UCENSE EXAMINATION i

SCTHER IEEE STD 803A 1983 i

F-ADMIMSTRATIVE G CPERATIONAL ERROR H OTHER

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