ML20206P786

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Monthly Operating Repts for Dec 1998 for Prairie Island Nuclear Generating Plant.With
ML20206P786
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 12/31/1998
From: Dugstad D, Sorensen J
NORTHERN STATES POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9901130246
Download: ML20206P786 (7)
v • d • e


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Northern Str.tes Power Company Pralrie Island NJclear Generating Plant 1717 Wakonade Dr. East Welch. Minnesc'a 55089 January 6,1999 Technical Specifications 6.7.A.3 i

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US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 l 50-306 DPR-60 Monthly Operating Report December 1998 Attached is the Monthly Operating Report for December 1998 for the Prairie Island Nuclear Generating Plant. /

Joel P. Sorensen Plant Manager ,

Prairie Island Nuclear Generating Plant c: Regional Administrator-Ill, NRC ]NY NRR Project Manager, NRC NRC Resident inspector State of Minnesota - Kris Sanda l

Attachment

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9901130246 981231 PDR ADOCK 05000282 e R PDR L

NRC MONTHLY REPORT PRINTED 1/5/1999 i Page 1 l

DOCKET NO. 50 282 UNIT PRAIRIE ISLAND NO.1 l DATE 1/5/1999 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 NARRATNE

SUMMARY

OF OPERATING EXPERIENCE i

MONTH: DECEMBER 1998 I For the month of December, Unit 1 was base loaded. There were no power reductions or shutdowns.

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CURRENT CONTINUOUS OPERATING RUN OF 43 DAYS i'

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NRC MONTHLY REPORT PRINTED 1/5/1999 Page 2 DOCKET NO. 50-282

, UNIT PRAIRIE ISLAND NO.1 DATE 1/5/1999 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 OPERATING DATA REPORT OPERATING STATUS

1. UNIT NAME: PRAIRIE ISLAND NO.1
2. REPORTING PERIOD: DECEMBER 1998
3. LICENSED THERMAL POWER (MWT): 1650
4. NAMEPLATE RATING (GROSS MWE): 593
5. DESIGN ELECTRICAL RATING (NET MWE): 543
6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 558
7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 520
8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 - 7) SINCE LAS f 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 8760 219528
12. NUMBER OF HOURS REACTOR CRITICAL 744.0 8010.5 188787.5
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 5571.1
14. HOURS GENERATOR ON-LINE 744.0 7950.2 186938.7
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00
16. GROSS THERMAL ENERGY GENERATED (MWH) 1220400 12952512 297230355
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 426310 4451260 98269970
18. NET ELECTRICAL ENERGY GENERATED (MWH) 405772 4209161 92443482
19. UNIT SERVICE FACTOR 100.0 90.8 85.2
20. UNIT AVAILABILITY FACTOR 100.0 90.8 85.2
21. UNIT CAPACITY FACTOR ( MDC NET) 103.7 94.6 83.2
22. UNIT CAPACITY FACTOR ( DER NET) 102.9 91.6 79.2
23. UNIT FORCED OUTAGE RATE 0.0 9.0 4.8
24. FORCED OUTAGE HOURS 0.0 786.5 9327.2 L

[ *- NRC MONTHLY REPORT PRINTED 1/5/1999

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, DOCKET NO. 50-282

. UNIT PRAIRIE ISLAND NO.1 DATE 1/5/1999 l

COMPLETED BY DALE DUGSTAD PHONE 651-388-11214376 UNIT SHUTDOWNS AND POWER REDUCTIONS i MONTH: DECEMBER 1998 DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT ,

12/31/1998 1 0 NOTES: None.  !

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TYPE REASO_N METHOD SYSTEM CODE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD S-SCHEDULED B-MAINTENANCE OR TEST 2-MANUAL TRIP C-REFUELING 3-AUTO TRIP D-REGULATORY RESTRICTION 4 CONTINUED E-OPERATORTRAINING AND 5-REDUCED LOAD COMPONENT CODE LICENSE EXAMINATION l 9-OTHER IFEE STD 803A-1983

F-ADMINISTRATIVE i

G-OPERATIONAL ERROR H-OTHER

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NRC MONTHLY REPORT PRINTED 1/5/1999 Page 4 DOCKET NO. 50-306

, UNIT PRAIRIE ISLAND NO. 2 DATE 1/5/1999 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376

! NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: DECEMBER 1998 l For all of December, Unit 2 continued in a refueling outage that started on November 9th at 0048. Some of the many outage activities that were planned and completed are listed below:

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l Refueling l Generator low pressure rotor upgrade f Reactor coolant pump work Steam generator eddy current testing and repair Diesel generator D6 five year inspection Reactor vessel inspection CRDM cable replacement Routine maintenance of many other components l

The outage was scheduled to end sometime on the 24th of December but was prolonged due the following items:

l l Reactor Coolant Pump seals, a second set of seals had to be installed on 22 RCP

! because the first set leaked.

Steam Generator additional work, the manways for both steam generators needed additional machining and two bolt holes for 22 SG needed to be repaired.

Nitrogen supply valve to the Accumulators, on the 22nd CV-31512 would not close and required repairs before returning the unit to service.

The reactor was trade critical on the 30th at 1801 and low power testing was completed by the end of the month.

The generator was not placed on-line in December.

The outage ended a continuous operating run of approximately 250 days.

CURRENT CONTINUOUS OPERATING RUN OF 0 DAYS

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NRC MONTHLY REPORT PRINTED 1/5/1999 Page5

, DOCKET NO. 50-306

. UNIT PRAIRIE ISLAND NO. 2 DATE 1/5/1999 COMPLETED BY DALE DUGSTAD PHONE 651388-1121-4376 OPERATING DATA REPORT OPERATING STATUS

1. UNIT NAME: PRAIRIE ISLAND NO. 2 t 2. REPORTING PERIOD: DECEMBER 1998
3. LICENSED THERMAL POWER (MWT): 1650

( 4. NAMEPLATE RATING (GROSS MWE): 593 1

5. DESIGN ELECTRICAL RATING (NET MWE): 530
6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 544 i j 7. MAXIMUM DEPENDABLE CAPACITY (NET MWE). 512 I
8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 - 7) SINCE LAST REPORT, GIVti REASON:

NONE

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

l THIS MONTH - YR .TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 8760 210646
12. NUMBER OF HOURS REACTOR CRITICAL 30.0 3595.9 185322.1
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1516.1
14. HOURS GENERATOR ON-LINE 0.0 6557.1 183784.2
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 0 10686494 293151081
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 0 3538520 96035930
18. NET ELECTRICAL ENERGY GENERATED (MWH) -4218 3335159 90786329
19. UNIT SERVICE FACTOR 0.0 74.9 87.2
20. UNIT AVAILABILITY FACTOR 0.0 74.9 87.2 l'
21. UNIT CAPACITY FACTOR ( MDC NET) -1.1 74.4 85.7
. 22. UNIT CAPACITY FACTOR ( OER NET) -1.1 71.8 81.3

! 23. UNIT FORCED OUTAGE RATE 0.0 12.4 3.0

24. FORCED OUTAGE HOURS 0.0 931.7 5662.8 f

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  • NRC MONTHLY REPORT PRINTED 1/5/1999 Page 6

, DOCKET NO. 50-306

, UNIT PRAIRIE ISLAND NO. 2 DATE 1/5/1999 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 l

UNIT SHUTDOWNS AND POWER REDUCTIONS j l

MONTH: DECEMBER 1998 DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 12/31/1998 2 S 744 C 4 N/A N/A NOTES: Refuehng outage, cycle 19.

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TYPE REASON METHOD SYSTEM CODE F-FO'tCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD S-SCHEDULED B-MAINTENANCE OR TEST 2-MANUAL TRIP

[ C-REFUELING 3-AUTO TRIP i D-REGULATORY RESTRICTION 4-CONTINUED i E-OPERATOR TRAINING AND 5-REDUCED LOAD COMPONENT CODE LICENSE EXAMINATION 9-OTHER IEEE STD 803A-1983 F-ADMINISTRATIVE G-OPERATIONAL ERROR i

H-OTHER I

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