ML20074A786

Monthly Operating Repts for Apr 1983

ML20074A786
Person / Time
Site:	Prairie Island
Issue date:	05/04/1983
From:	Dugstad D NORTHERN STATES POWER CO.
To:
Shared Package
ML20074A766	List: ML20074A765 ML20074A786
References
NUDOCS 8305160076
Download: ML20074A786 (8)

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t NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50- 282 UNIT Prairie Island No.1 y DATE glosna  !

COMPLETED BY Dale Duantad TELEPHONE 612-388- 1121 MONTH in ,.4 1 1ont 5 The unit was base loaded this month, no shutdowns.

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B305160076 830511 PDR ADOCK 05000282 R PDR

4 DAILY UNIT PONER OUTPUT DOCKET NO. 50-282 UNIT Prairie Island No.1 DATE 830504 COMPLETED BY Dale Dunstad TELEPHONE 612-388- 1121 MONTH April 1983 DAY AVERAGE LOAD MWe-Net DAY n AVERAGE LOAD MWe-Net

$ 1 528 17 497 8

- 2 530 18 522 2

{ 3 527 19 522 E

g 4 530 20 529 5 526 21 519 6 529 22 526 7 524 23 522 8 524 24 525 9 526 25 525 10 529 26 523 11 528 27 525 1; 526 28 524 13 527 29 525 14 526 30 524 l

1 528 31 ---

16 523 l .

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! Average loads above 503 tMe-Net are due to cooler cond.:nser circulating water.

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e OPERATING DATA REPORT DOCKET NO 50-282 DATE 830504 COMPLETED BY Dale Dugstad OPERATING STATUS TELEPHONE 612-388-1121

1. Unit Name: Prairie Island No. 1

2. Reporting Period: April 1983

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): 534 g 7. Maximum Dependable Capacity (Net MWe): 503

+ 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report:

2 ,

• Give Reason: N/A o?

C

, 9. Power Level To Which Restricted, If Any (Net MWe): N/A

10. Reasons for Restrictions, If Any: N/A This Month Yr-To-Date Cumulative

11. Hours In Reporting Period 719 2879 82151

12. Number Of Hours Reactor Was Critical 719 2518.0 66533.6

13. Reactor Reserve Shutdown Hours 0.0 0.0 5571.1

14. Hours Generator On Line 719 2513.8 65270.6

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1180326 4104828 102047806

17. Gross Electrical Energy Generated (MWH) 400310 1392660 33144080

18. Net Electrical Energy Generated (MWH) 377186 1317974 31020550

19. Unit Service Factor 100.0 87.3 79.5

20. Unit Availability Factor 100.0 87.3 79.5

21. Unit Capacity Factor (Using MDC Net) 104.3 91.0 75.1

22. Unit Capacity Factor (Using DER Net) 99.0 86.4 71.2

23. Unit Forced Outage Rate 0.0 0.4 9.2

'4. Shutdowns Scheduled Over Next-12 Months (Type, Date and Duration of Each):

Refueling fall of 1983 5 Weeks

25. If Shut Down at End Of Report Period, Estimated Date of Startup: N/A

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UNIT SHUTDOWNS AND /ER REDUCTIONS DOCKET NO. 50- 282 -

REPORT MONTH Apri1'1983 UNIT NAME Prairie Island No.I DATE 830504 COMPLETED BY Dale Dugstad

, TELEPHONE 612-388 1121 s c n  % [u Licensee e ,s u Cause & Corrective Date 8, 3Q @ d3 Event *

.$ Em Action to N N$ $ EUE Report # $0 8 .$ Prevent Recurrence YE AV N SEN WM

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4-17-83 S 0.0 B N/A N/A N/A N/A Turbine valves test 5

m F: Forced Reason Method: Exhibit G-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for B-Haintenance or Test 2-Manual Trip Preparation of C-Refueling 3-Automatic Trip Data Entry Sheets D-Regulatory Restriction 4-Other (Explain) for Licensee Event E-Operator Training & License Examination Report (LER) File F-Administrative (NUREG-0161)

G-Operational Error (Explain)

II-Other (Explain 5 Exhibit 1 - Same Source

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 830504 COMPLETED BY Dale Dunstad TELEPHONE 612-388- 1121 MONTH Anril 1983

- The unit was base loaded this month. On the lith, after the Unit 2 h turbine valves test, one stop valve did not reopen thus limiting the a:

., unit to approximately 73% power for five days. The unit was brought

$ to cold shutdown on the 15th for repairs to the valve and at 1018 of

@i the 16th was returned to service.

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DAILY UNIT POWER OUTPUT DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 830504 COMPLETED BY Dale Dugstad .

TELEPHONE 612-388- 1121 MONTH Anril 1983 DAY AVERACE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net m

f 1 522 17 -11

,. 2 524 18 -13 3 523 19 68

[

a g 4 522 20 419 5 520 21 516 6 520 22 523 7 519 23 520 8 521 24 524 9 507 25 520 10 339 26 519 11 344 27 521 12 358 28 523 13 353 29 517 l' 357 30 517 15 272 31 ---

16 -11 Average loads above 500 !!We-Net are due to cooler condcaser circulating water.

OPERATING DATA REPORT DOCKET NO 50- 306 DATE 830504 COMPLETED BY na1, nuoarmd OPERATING STATUS TELEPHONE 612-38'B-1121

1. Unit Name: Prairie Island No. 2

2. tes Reporting Period: April 1983

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): 531 g 7. Maximum Dependable Capacity (Net MWe): 500

,- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report:

O Give Reason: N/A o?

d

, 9. Power Level To Which Restricted, If Any (Net MWe): N/A e

f '.0. Reasons for Restrictions, If Any: N/A 6

This Month Yr-To-Date Cumulative

11. Hours In Reporting Pericd 719 2879 73269

12. Number Of Hours Reactor Was Critical 641.4 2596.3 63203.4

! ^13. Reactor Reserve Shutdown Hours 0.0 0.0 IS16.1

14. Hours Generator On Line 632.0 2582.9 62298.0

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 953086 4132573 97950361

17. Gross Electrical Energy Generated (MWH) 316080 1051870 31218960

18. Net Electrical Energy Generated (MWH) 295692 1310536 29569199

19. Unit Service Factor 87.9 89.7 85.0

20. Unit Availability Factor 87.9 89.7 85.0

21. Unit Capacity Factor (Using MDC Net) 82.3 91.0 80.7 l 22. Unit Capacity Factor (Using DER Net) 77.6 85.9 76.1

23. Unit Forced Outage Rate 0.0 0.0 4.9

4. Shutdowns Scheduled Over Next 12 Months (Type, Date and Duration of Each):

Refueling, July 1983 5 Weeks

( 25. If Shut Down at End Of Report Period, Estimated Date of Startup: N/A 1

UNIT SHUTDOWNS AND .ER REDUCTIONS

• DOCKET NO. 50-306 -

REPORT MONTil April 1983 UNIT NAME Prairie Island No. 2 DATE 830504 COMPLETED BY Dale Dus;stad

. r TELEPHONE 612-388 1121 a e m u [u Licensee g4 u Cause & Corrective Date $. O9 8 dO Event u 8 8m Action to N N$ $ 3 I$ $ Report i EO $ .$ Prevent Recurrence

• $$ 5 '0E N *

$0

.n Av gm 3 9

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• 5 kH .

4-10-83 S 0.0 B N/A N/A N/A N/A Turbine Valves Test .

@ 4-10-83 F 0.0 A N/A RO 83-8 IIA Valvex Power Limited Due to Failed n.

Valve 4-16-83 S 87.0 A 1 RO 83-8 IIA Valvex Repaired Failed Valve 1

1 F: Forced Reason Method: Exhibit G-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for B-Maintenance or Test 2-Manual Trip Preparation of C-Refueling 3-Automatic Trip Data Entry Sheets D-Regulatory Restriction 4-Other (Explain) for Licensee Event E-Operator Training & License Examination Report (LER) File F-Administrative (NUREG-0161)

C-Operational Error (Explain) 5 it-Other (Explain Exhibit 1 - Same Source