ML20154H406

Monthly Operating Repts for Sept 1998 for Prairie Island Nuclear Generating Plant.With

ML20154H406
Person / Time
Site:	Prairie Island
Issue date:	09/30/1998
From:	Dugstad D, Sorensen J NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9810140169
Download: ML20154H406 (7)

Text

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Northern States Power Company Prsirle island Nuclear Generating Plant 1717 Wakonade Dr. East Welch, Minnesota 55089 October 5,1998 Technical Specifications 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 Mcnthly Operating Report September 1998 Attached is the Monthly Operating Report for September 1998 for the Prairie Island Nuclear Generating Plant.

Joel P. Sorensen Plant Manager I'j Prairie Island Nuclear Generating Plant I c: Regional Administrator-Ill, NRC NRR Project Manager, NRC NRC Resident inspector '

kh State of Minnesota - Kris Sanda f Attachment 9810140169 900930 ~ ~ C DR ADOCK 05000282 PDR

NRC MONTHLY REPORT PRINTED 10/2/199 Page1 DOCKET NO. 50-282

, , UNIT PRAIRIE ISLAND NO.1 DATE 10/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: SEPTEMBER 1998 During the month of September, Unit 1 was base loaded. There were no power reductions or shutdowns.

CURRENT CONTINUOUS OPERATING RUN OF 104 DAYS

i NRC MONTHLY REPORT PRINTED 10/2/199 i Pagea

' DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 l ,

DATE 10/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 OPERATING DATA REPORT l OPERATING STATUS

1. UNIT NAME: PRAIRIE ISLAND NO.1

2. REPORTING PERIOD: SEPTEMBER 1998

3. LICENSED THERM AL POWER (MWT): 1650 l 4. NAMEPLATE RAT NG (GROSS MWE): 593

! 5. DESIGN ELECTRICAL RATING (NET MWE): 543

! 6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE): 558

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE): 526 l 8. IF CHANGES OCCUR IN 0.APACITY RATINGS (ITEMS 3 - 7) SINCE LAST REPORT, GIVE REASON:

NONE l 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 720 6551 217319 i 12. NUMBER OF HOURS REACTOR CRITICAL 720.0 6257.9 187034.9

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 5571.1

14. HOURS GENERATOR ON-LINE 720.0 6221.2 185209.7

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00 l 16. GROSS THERMAL ENERGY GENERATED (MWH) 1181754 10131354 294409197 l 17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 405170 3465990 97284700

18. NET ELECTRICAL ENERGY GENERAT ED (MWH) 383217 3277528 91511849

19. UNIT SERVICE FACTOR 100.0 95.0 85.2

20. UNIT AVAILABILITY FACTOR 100.0 95.0 85.2

21. UNIT CAPACITY FACTOR ( MDC NET) 101.2 94.6 83.2

22. UNIT CAPACITY FACTOR ( DER NET) 100.4 91.6 79.2 l 23. UNIT FORCED OUTAGE RATE 0.0 4.7 4.6

24. FORCED OUTAGE HOURS 0.0 306.5 8847.2 l

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NRC MONTHLY REPORT PRINTED 10/2/199 Page 3 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 10/2/1998  ;

COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 UNIT SHUTDOWNS AND POWER REDUCTIONS MONTH: SEPTEMBER 1998 ,

P DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 9/30/1998 1 0 NOTES: None, i

TYPE REASON 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 l D-REGULATORY RESTRICTION 4-CONTINUED E-OPERATOR TRAINING AND 5-REDI,tED LOAD COMPONENT CODE LICENSE EXAMINATION 9OTHER IEEE STD 803A-1983 F-ADMINISTRATIVE G-OPERATIONAL ERROR l H-OTHER l

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.- NRC MONTHLY REPORT PRINTED 10/2/199 Pags 4 DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO. 2 DATE 10/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE l MONTH: SEPTEMBER 1998 During the month of September, Unit 2 was base loaded. There were no shutdowns and only one power reduction.

The reduction started on the 19th at 2210 to allow cleaning of the condenser waterbox tube sheet, cleaning of the amertap screens, and turbine valve testing. During the power reduction Delta I went out of its band limit. Plant Tech Specs require that the Unit remain below 50% power operation until Delta I is within the band limit for 23 of the previous 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Unit 2 started the power ascension at 1933 of the 21st and resumed full power operation at 0544 of the 22nd.

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CURRENT CONTINUOUS OPERATING RUN OF 210 DAYS

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. . i NRC MONTHLY REPORT PRINTED 10/2/199 Page 5 DOCKET NO. 50 306 UNIT PRAIRIE ISLAND NO. 2 DATE 10/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-11214376 I

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OPERATING DATA REPORT OPERATING STATUS

1. UNIT NAME: PRAIRIEISLAND NO.2 I

2. REPORTING PERIOD: SEPTEMBER 1998

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 l

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

NONE

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

10. REASONS FOR RESTRICTIONS, IF ANY: NONE THIS MONTH YR TO-DATE CU_MU_LA_T.IVE 11 HOURS IN REPORTING PERIOD 720 6551 208437

12. NUMBER OF HOURS REACTOR CRITICAL 720.0 5628.1 184354.3

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1516.1

14. HOURS GENERATOR ON-LINE 720.0 5619.3 182846.4

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1141355 9144040 291608627

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 378800 3016580 95513990

18. NET ELECTRICAL ENERGY GENERATED (MWH) 357379 2844463 9035633

19. UNIT SERVICE FACTOR 100.0 85.8 87.7

20. UNIT AVAILABILITY FACTOR 100.0 85.8 87.7

21. UNIT CAPACITY FACTOR ( MDC NET) 96.9 84.8 86.2

22. UNIT CAPACITY FACTOR ( DER NET) 93.7 81.9 81.7

23. UNIT FORCED OUTAGE RATE 0.0 14.2 3.0

24. FORCED OUTAGE HOURS 0.0 931.7 5662.8 l

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.' NRC MONTHLY REPORT PRINTED 10/2/199 Page 6

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DOCKET NO. 50 306

, , UNIT PRAIRIE ISLAND NO. 2 l DATE 10/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 1

UNIT SHUTDOWNS AND POWER REDUCTIONS MONTH: SEPTEMBER 199 DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 9/19/1998 2 S 0 B 5 N/A N/A N/A NOTES: Waterbox & amertap cleaning & Turbine valve testing. I l

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TYPE REASON METHOD SYSTEM CODE F-FORCED A-EQUIPMENT FAILURE 1-MANUAL DRAFT IEEE STD  !

S-SCHEDL' LED B-MAINTENANCE OR TEST 2-MANUAL TRIP C-REFUELING 3-AUTO TRIP D-REGULATORY RESTRICTION 4-CONTINUED E-OPERATOR TRAINING AND 5-REDUCED LOAD COMPONENT CODE i l

LICENSE EXAMINATION 9-OTHER IEEE STD 803A-1983 F-ADMINISTRATIVE G-OPERATIONAL ERROR H-OTHER