ML20206N273

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Monthly Operating Repts for Nov 1998 for Prairie Island Nuclear Generating Plant,Units 1 & 2.With
ML20206N273
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 11/30/1998
From: Dugstad D, Sorensen J
NORTHERN STATES POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9812160077
Download: ML20206N273 (7)
v • d • e


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Northern States Power Company Prairie Island Nuclear Generating Plant 1717 Wakonade Dr. East Welan. Minnesota 55089 i

December 9,1998 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 Monthly Operating Report November 1998 Attached is the Monthly Operating Report for November 1998 for the Prairie Island Nuclear Generating Plant.

t Joel P. Sorensen

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. Plant Manager Prairie Island Nuclear Generating Plant

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Regional Administrator-Ill, NRC NRR Project Manager, NRC

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NRC Resident inspector

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1 State of Minnesota - Kris Sanda Attachment

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NRC MONTHLY REPORT PRINTED 12/?/199 Page1 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO 1 DATE 12/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: NOVEMBER 1998 For the beginning of November, Unit 1 continued in the forced outage that started on the 29th of October. The cause of the outage was a shorted Control Rod Drive cable. All of the Unit's Control Rod Drive cables were replaced. The Reactor was taken critical on the 18th at 0009. The Generator was placed on-line on the 18th at 2347. The Unit reached full power operation on the 19th at 1638.

The Unit was base loaded.

The trip r.nded a continuous operating run of approximately 133 days.

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CURRENT CONTINUOUS OPERATING RUN OF 12 DAYS

NRC MONTHLY REPORT PRINTED 12/2/199 Page 2 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 12/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 OPERATING DATA REPORT OPERATING STATUS

1. UNIT NAME:

PRAIRIEISLAND NO.1

2. REPORTING PERIOD:

NOVEMBER 1998

3. LICENSED THERMAL POWER (MWT): 1650 1

~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):

526

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 Y_R-TO-DATE C_UM.ULATIVE

11. HOURS IN REPORTING PERIOD 720 8016 218784
12. NUMBER OF HOURS REACTOR CRITICAL 311.8 7266.5 188043.5 i
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.00 5571.1
14. HOURS GENERATOR ON-LINE 288.2 7206.2 186194.7
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.00 0.00
16. GROSS THERMAL ENERGY GENERATED (MWH) 457650 11732112 296009955
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 159870 4024950 97843660
18. NET ELECTRICAL ENERGY GENERATED (MWH) 147507 3803389 92037710
19. UNIT SERVICE FACTOR 40.0 89.9 85.1
20. UNIT AVAILABILITY FACTOR 40.0 89.9 85.1
21. UNIT CAPACITY FACTOR ( MDC NET) 38.9 94.6 83.2
22. UNIT CAPACITY FACTOR ( DER NET) 38.7 91.6 79.2
23. UNIT FORCED OUTAGE RATE 60.0 9.8 4.8
24. FORCED OUTAGE HOURS 431.8 786.5 9327.2

NRC MONTHLY REPORT PRINTED 12/2/199 Page 3 DOCKET NO. 50-282 UNIT PRAIRIE ISLAND NO.1 DATE 12/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 A

UNIT SHUTDOWNS AND POWER REDUCTIONS 1

i MONTH: NOVEMBER 1998 DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 11/1/1998 1

F 431.8 A

4 1-98-16 N/A N/A i

NOTES:

Reactor trip of 10/29/98 caused by control rod cable short.

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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 D-REGULATORY RESTRICTION 4-CONTINUED 4

i E-OPERATOR TRAINING AND 5-REDUCED LOAD COMPONENT CODE LICENSE EXAMINATION 9-OTHER IEEE STD 803A-1983 j

F-ADMINISTRATIVE G-OPERATIONAL ERROR H-OTHER

NRC MONTHLY REPORT PRINTED 12/2/199 Page 4 1

DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO. 2 i

DATE 12/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE MONTH: NOVEMBER 1998 4

For the beginning of November, Unit 2 was base loaded operating at full power. On the 8th at 2330., operations began a controlled shutdown of the Unit to start cycle 19 refueling outage. On the 9th at 0048, the Unit was at approximately 22% power when a turbine trip was generated and automatically shut down the Unit.

The cause of the trip is still under investigation, j'

Some of the outage activities are:

Refueling Generator low pressure rotor upgrade Reactur coolant pump work Steam generator eddy current testing and repair Diesel generator D6 five year inspection Reactor vessel inspection CRDM cable rep lacement 4

Routine maintenance of many other components 4

The outage ended a continuous operating run of approximately 250 days 1

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CURRENT CONTINUOUS OPERATING RUN OF 0 DAYS

NRC MONTHLY REPORT PRINTE012/2/199 P:ge5 DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO. 2 DATE 12/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-1121-4376 OPERATING DATA REPORT OPERATING STATUS

1. UNIT NAME:

PRAIRIEISLAND NO.2

2. REPORTING PERIOD:

NOVEMBER 1998

3. LICENSEL 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
10. REASONS FOR RESTRICTIONS, IF ANY:

NONE THIS MONTH YR TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 720 8016 209902
12. NUMBER OF HOURS REACTOR CRITICAL 192.8 6565.9 185292.1
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 1516.1
14. HOURS GENERATOR ON-LINE 192.8 6557.1 183784.2
15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
16. GROSS THERMAL ENERGY GENERATED (MWH) 317833 10686494 293151081
17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 1069A0 3538520 96035930
18. NET ELECTRICAL ENERGY GENERATED (MWH) 10C176 3339377 90790547
19. UNIT SERVICE FACTOR 26.8 81.8 87.6
20. UNIT AVAILABILITY FACTOR 26.8 81.8 87.6
21. UNIT CAPACITY FACTOR ( MDC NET) 27.4 81.4 86.1
22. UNIT CAPACITY FACTOR ( DER NET) 26.5
  • i8.6 81.6
23. UNIT FORCED OUTAGE RATE 0.0 12.4 3.0
24. FORCED OUTAGE HOURS 0.0 931.7 5662.8

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NRC MONTHLY REPORT PRINTED 12/2/199 Page 6 DOCKET NO. 50-306 UNIT PRAIRIE ISLAND NO. 2 4

DATE 12/2/1998 COMPLETED BY DALE DUGSTAD PHONE 651-388-11214376 2

4-UNIT SHUTDOWNS AND POWER REDUCTIONS 1

MONTH: NOVEMBER 1998 Y

DATE UNIT TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT 11/9/1998 2

S 527.2 C

3 2-98-005 N/A N/A NOTES: Refueling outage, cycle 19, Turbine trip at - 22% power.

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i i-4 TYPE 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 RESTRICTION 4-CONTINUED E-OPERATOR TRAINING AND 5-REDUCED ' OAD COMPONENT CODE LICENSE EXAMINATION j

9-OTHER IEEE STD 803A-1983 i

F-ADMINISTRATIVE G-OPERATIONAL ERROR H-OTHER

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