ML19320C267

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Monthly Operating Repts for June 1980
ML19320C267
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 07/01/1980
From: Hunstad A
NORTHERN STATES POWER CO.
To:
Shared Package
ML19320C262 List:
References
NUDOCS 8007160562
Download: ML19320C267 (9)
v • d • e


Text

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.o E' A n'tATT? TJE,y)r." 07 ('P5t'. r.h7 EvFERIENCE DOCKET No. 50-- 282 L711T Pref rie Island No.1 DATE 800701 C'"TI ETED BY A. A. Hunstad TI1ErP.ONE 612-288-4767 o

j P.?!T9 June 1980

" The unit was in Load Follow operation this month. On 6-29 power a.

g was reduced to 50% to do the monthly turbine valves test. A N resulting power distribution imbianc5 f reed operation at or below 50% power for the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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1 DAILY UNIT POWER OUTPUT DOCKET NO. 50- 282 UNIT Prairie Island No. 1 DATE 800701 COMPLETED BY A. A. mmatad TELEPHONE 612-388-4767 MONTH Jun . 1980 AVERACE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net DH 1 463 17 463 d

. 2 467 18 465 m

3 464 19 459

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4 468 20 464 469 21 464 5

468 22 465 6

348 23 467 7

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382 24 466 8

465 25 464 9

469 26 463 10 468 27 467 11 465 28 466 12 465 29 203 13 466 30 237 14 13 466 31 16 466 Average loads above503 }!We-Net are due to cooler condenser circulating water.

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C DUCKET NO 50- 282 DATE 800701 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-338-4767

1. Unit Name: Praitie Island No. 1
2. Reporting Period: June 1980
3. Licensed Thermal Power (MWt): 1650
4. Nameplate Racing (Gross MWe): 593
5. Design Electrical Rating (Net MWe): 530
6. Maximum Dependable capacity (Gross MWe):

U 7. Maximum Dependable Capacity (Net MYc):

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

o x Give Reason:

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Power Level To bhich Restricted, If Any (Net MWe):

o Reasons for Rastrictions, If Any:

10.

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This Month Yr-To-Date Cumulative

11. Hours In Reporting Period 720 4367 57335
12. Number Of Hours Reactor Was Critical 720.0 4235.9 45444.3'
13. Reactor Reserve Shutdown Hours 0.0 0.0 5531.9
14. Hours Generator On Line 720.0 4230.8 44354.3
15. Unit Resc:ve Shutdown Foure 0.0 0.0 0.0
16. Gross Thermal Energy Generated (MWH) 1128884 6834942 68913936
17. Gross Electrical Energy Generated (MWH) 340900 2114380 22268050
18. Net Electrical Energy Generated (MWH) ,318484 1981867 20821119
19. Unit Service Factor 100.0 96.9 77.4
20. Unit Availability Factor 100.0 96.9 77.4
21. Unit Capacity Factor (Using MDC Net) 87.9 90.2 72.2
22. Unit Capacity Factor (Using DER Net) 83.5 85.6 68.5
23. Unit Forced Outage Rate 0.0 0.0 12.5

,(~ 24. Shutdowns Scheduled Over Next 12 kbuchs (Type, Date and Duration of Each):

Refueling, August 15, 1980, 8 weeks

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

UNIT SHUTDOWNS AND POWER REDUCTIONS ,

DOCKET NO. 50- 282 REPORT MONTH June 1980 DATE 800701

  • COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 a e n  % [u Licensee ae u Cause & Corrective Date $. M7 'E d8 Event $ .$ 6 .n Action to M %$ $ ~8 ii S Report # EO 88 Prevent Recurrence
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n. 800629 F 0.0 11 N/A N/A N/A N/A Reduced power to 50% to do the E monthly turbine valves test. A Z resulting power distribution imbalance forced operation at or below 50% for the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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)

G-Operational Error (Explain) 5 li-Other (Explain Exhibit 1 - Same Source

"AR'tATTU .gNM;" M 0"SR\TitM RYPERIENCE POCKET NO. 50- 306 UMIT Prairin Island No. 2 DATE 800701 CC"?f,ETED DY A. A. Htmmend TELEPIIO:'E 612-288-4767 o

g M0'IPI June 1980

" The unit was in Load Follow operation this month. The unit was m

g shuthwn at 0120 on 6-4 to return 2M Transformer to service and to A do maintenance on the turbine oil system. At the restart on 6-6 the turbine was =anually tripped due to high vibration, and was again put in service at 0o51 af ter balancing.

On 6-7 a storm caused loss of two lines from the substation.

Questions as to capacity of the remaining lines and system stability

{ caused an administrative restriction of 65% power to be placed on the unit from 6-9 to 6-13. The unit was returned to full power on 6-13 when one of the downed lines was returned to service.

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DAILY UNIT POWER OUTPUT DOCKET NO. 50- 306 UNIT Prairie Island No. 2 DATE 800701 COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 MONTH June, 1980 DAY AVERACE LOAD MWe-Net DAY AVERACE LOAD MWe-Net

$ 1 496 17 466

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. 2 498 18 361

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1 3 483 19 451 2

4 -8 20 7 9

5 -19 21 490 6 321 22 487 7 423 23 488 8 500 24 491 9 236 25 487

10. 292 26 483 11 293 27 487 12 287 28 492 13 332 29 501 14 493 30 496 15 463 31 16- 470 ,

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sV Average loads above 500 MWe-Net are due to cooler / condenser circulating water.

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. . .a.i : .::C L.C 8i.?ar DOCKET NO 50- 306 DATE 800701 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-388-4767

1. Unit Name: Prairie Island No. 2
2. Reporting Period: Jim. 1980
3. Licensed Thermal Power (M2t): 1650
4. Nameplate Rating (Gross MWe): 593
5. Design Electrical Rating (het MUe): 530
6. Maximum Dependable Capscity (Grecs MWe): <

d 7. Maximum Dependable Capacity (Net MWe):

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

5 Give Reason:

c'

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

Reasons for Restrictions, If Any:

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10.

This Month Yr-To-Date Cumulative

11. Hours In Reporting Peried 720 4367 48453
12. Number Of Hours Reacter Was Critical 679.5 3064.8 42193.6
13. Reactor Reserve Shutdown Hours 40.5 82.9 1488.9
14. Hours Generator On Line 667.2 2997.9 41398.9
15. Unit Reserve Shutdown Hours _

0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1003265 4681932 64354435
17. Gross Electrical Energy Generated (MWH) 317420 1508260 20562390
18. Net Electrical Energy Generated (IfWH) 295518 1406745 19245377
19. Unit Service Factor 92.7 68.6 85.4
20. Unit Availability Factor 92.7 ,

68.6 85.4

'21. Unit Capacity Factor (Using MDC Net) 82.1 64.4 79.4

22. Unit Capacity Factor (Using DER Net) 77.4 60.8 74.9

.231 Unit Forced Outage Rate 0.0 0.4 4.6

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

Refueling, January, 1981, 6 weeks

25. If Shut Down at Eua Of Report Period, Estimated Date of Startup:

4 UNIT SIRITDOWNS AND POWER REDUCTIONS .

DOCKET NO. 50 w REPORT HONTil June 1980 UNIT NAME Prairie Island No.2 DATE 800701 COMPLETED BY A. A. Ihma tad TELEPIIONE 612-388-4767

.-v c n  % u% Licensee ay u Cause & Corrective Date E. O7 E O8 Event 38 8 .n Action to N $$ $ "E I$ N Report # 5, O @$ Prevent Recurrence a~

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800604 S 49.2 B 3 N/A N/A N/A Shutdown to return 2M Transformer to service and perform mainten-

$ ance on the turbine oil system.

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800606 S 3.6 11 N/A N/A N/A N/A Manual turbine' trip because of high vibration.

800609 F 0.0 11 N/A N/A N/A N/A Power was reduced to 65% from 6-9 to 6-13 due to downed lines from substation.

F: Forced Reason Method: Exhibit C-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for B-Maintenance or Test 2-Manuai 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) 3 H-Other (Explain Exhibit 1 - Same Source I

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~ .V* ' " ? G . ~':. vi]MT C - CORRECTED -

DOCKET NO 50- 306 DATE 800701 COMPLETED BY A. A. Huns tad OPERATING STATUS TELEPHONE 612-388-4767

1. Unit Name: Prairie Island No. 2
2. Reporting Period: May 1980 4
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 5 7, Maximum Dependable capacity (Net MWe): 500 g 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report:

E Give Reason:

cd

' O Power Level To Which Restricted, If Any (Net MWe):

9. __

Reasons for Restrictions, If Any:

( ~$} 10.

This Month Yr-To-Date Cumulativu

11. Hours In Reporting Period 744 3647 47733
12. Number Of Hours actor Was Critical 653.2 2385.1 41514.1
13. Reactor Reserve Shutdown Hours 0.0 42.4 1448.4
14. Hours Generator On Line 646.2 2330.7 40731.7
15. Unit Rescrve Shutdown Ecurs 0.0 0.0 0.3
16. Gross Thermal Energy Generated (MWH) 1038769 3678667 63351 70 _
17. Gross Electrical Energy Generated (MWH) 329920 1190840 l 20244970

-18. N9t Electrical Energy Generated (MWH) 308831 1111227 18949850

19. Unit Service Factor 86.9 63.9 85.3
20. Unic Availability Factor 86.9 63.9 85.3
21. Unit Capacity Factor (Using MDC Net) 63.0 60.9 79.4
22. Unit Capacity Factor (Using DER Net) 78.3 57.5 74.9
23. Unit Forced Outage Rate 0.3 0.5 4.7

,( 24. Shutdowns Schedaled vver Next 12 Months (Type, Date and Duration of Each):

l Refuelin.;, Jcb.1981, 6 weeks

25. 'If Shut Down at Ena Of Report Period, Estimated Date of Startup:
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