ML19253B392

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Monthly Operating Rept for Sept 1979
ML19253B392
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 10/01/1979
From: Hunstad A
NORTHERN STATES POWER CO.
To:
Shared Package
ML19253B377 List:
References
NUDOCS 7910150489
Download: ML19253B392 (8)
v • d • e


Text

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  • L DATE 791001 ca"?fRTE7 B'? A. A. Hunstad TET..rr !ONE 612-3CP-47fs7 o

>y Mo*TC51 SEPTEMBER 1979

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The unit was in Load Follow operation this month. An outage was taken at b

0338 on 9/30 to repair turbine steam leaks. One source range channel was seen to be inoperable so the detector was replaced. The unit was restarted at 1940 the same day.

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DAILY UNIT POWER Ol'TPUT DOCKET NO. 50-282 UNIT Prairie Island No. 1 DATE 791001 COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 MONTH SEPTEMBER 1979 DAY AVERACE LOAD MWe-Net DAY AVERACE LOAD MWe-Net 1

471 17 423 2

471 18 468 5

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3 468 19 470 4

469 20 470 5

471 21 466 6

467 22 415 7

466 23 387 8

468 24 398 9

472 25 409 10 449 26 446 11 471 27 370 12 471 28 470 13 471 29 393 14 468 30 42 15 469 31 16 469 Average loads above 503 MWe-Net are due to cooler condenser circulat'ing water.

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DATE 791001 Ul COMPLETED BY A. A. Hunstad ]

OPERATING STATUS TELEPHONE 612-388-4767 1.

Unit Name:

Prairie Island No. 1 2.

Reporting Period: September 1979 Notes 3.

Licensed Thermal Power (MWt):

1650 4.

Nameplate Rating (Gross MWe):

593 5.

Design Electrical Rating (Net HWe):

530 6.

Maximum Dependable Capacity (Cross MWe): 501 U

7.

Maximum Dependable Capacity (Ne*. MWe):

470 g

8.

If Changes Occur in Capacity Rttings (Items Number 3 Through 7) Since Last Report:

E.

Give Reason:

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9.

Power Level To Which Restricted, If Any (Pet MWe):

10.

Reasons for Restrictions, if Any:

This Month Yr-To-Date Cut. nlative 11.

Hours In Reporting Period 720 6551 51759

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12.

Number Of Hours Reactor Was Critical 706.0 5055.8 39744.9 13.

Reactor Reserve Shutdown Hours 14.0 _

824.1 5279.2 14.

Hours Generarer On Line 704.0 4967.4 38684.6

15. Unit Reserve Shutdown Bours 0.0 0.0 0.0 16.

Gross Thermal Energy Generated (!!','H) 1116328 7722134 60002716 17.

Gross Electrical Energy Generated (MWH)

, 337350 2477590 19508480 18.

Net Electrical Energy Generatmi OWH) 314904

_2314638 18243070 19.

Unit Service Factor 97.8 75.8 74.7 20.

Unit Availability Factor 97.8 75.8 74.7 21.

Unit Capacity Factor (Using MDC Nec) 70.2 70.1 93.1 22.

Unit Capacity Factor (Using DER Net) 82.5 66.7 66.5

23. Unit Forced Outage Rate 0.0 13.3 12.6 4.

Shutdowns Scheduled Over Next 12 Months (Type, Date and Duration of Ecch):

Refueling, Spring 1980, 5 weeks 25.

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

i

1 333

UNIT SHUTDOTiS AND POWER REDUCTIONS DOOKET N3.30-282

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  • I REPORT MONTH SEPTEMBER 1979 DATE T91'01 0

COMPLETZD 3Y A. A. Hunstad.____.._,

TELEPiiONE $12-333-4767

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3 N/A HA TURBIN Shutdown to repair steam leaks; a

g also replaced detector for i$

source range channel N31.

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F: Forced

  • Reason Method:

Exhibit.G-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for

( 3 B-Maintenance or Test 2-Manual Trip Preparation of C-Refualing 3-Automatic Trip Data Entry Sheets D-Regulatory Restriction 4-Other (Explain) for Licensee Event c.x E-Operator Training & License Examination Report (LER) Fila U

F-Administrative (NUREG-0161)

A G-Operational Error (Explain) 5 Il-Other (Snplain Exhibit 1 - S m 3'ur:2

?'ADRA*T'.'" STWAT'" o" OPEMT tNr: EXPERIENCE DOCKET No. 50- 306 LTIT P':=f rin Taland No. 2 DATE 791001 Cr""T.ETFD P.Y A. A. Htmstad 7275"UONS 612-308-4767 o

MONTH SEPTEMBER 1979 m

The unit was in Load Follow operation this month; no shutdowns.

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DAILY UNIT POWER OUTPUT DOCKET No. 50- 306 UNIT Prairie Island No. 2 DATE 791001 COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 MONTH SEPTEMBER 1979 DAY AVERACE LOAD MWe-Net DAY AVERACE LOAD MWe-Net 1

492 17 493 2

464 18 494 3

448 19 471 4

490 20 494 5

493 21 496

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6 494 22

, 498 7

496 23 498 8

496 24 455 o

397 25 497 10 492 26 495 11 460 27 492 12 494 28 427 13 e.98 29 494 14 456 30 500 15 491 31 16 494 Average loads above 500 MWe-Net are due to cooler condenser circulating water.

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0ff_RATIN_G,DATf.JEPORT DOCKET NO 50- 306 DATE 791001 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPRONE 612-388-4767 1.

Unit Name:

Prairie Island No. 2 2.

Reporting Period: September 1979 tes 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 N

7.

Max 1htum Dependable Capacity (Ne': MWe):

500 g

8.

If Changes occur in Capacity Rati.ngs (Items Number 3 Through 7) Since Last Report:

rE Give Reason:

C 9.

Power Level To Which Restricted, Tf Any O'et PfWe):

,o7 10.

Reasons for Restrictions, If An't:_,

This Month Yr-To-Date Cu'. nlative 11.

Hours In Reporting Period 744 6551 __

41877 12.

Number Of Hours Reacter Was Critical 744.0 6521.2 36964.8 13.

Reactor Reserve Shutdown Hours

0. 0_

6.5 1385.2 14.

Hours Generator On Line 744.0 6508.8 36244.4 15.

Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.

Cross Thermal Energy Generated (if1H) 1154994 10205754 56225039 17.

Gross Electrical Ener gy GeneratcJ (M410

, 369820 3317720 17905460 18.

Net Electrical Energy Generated OWH) 347023 3114010 16759598 19.

Unf t Service Factor 100.0 99.4 86.5 20.

Unit Availability Factor 100.0 99.4 86.5 21.

Unit Capacfty Factor (lising MDC Net) 96.4 95.1 80.0 22.

Unit Capacity Factor (Using DER Net) 90.9 89.7 75.5 23.

Unit Forced Outage Rs.te 0.0 0.3 5.1

'4.

Shutdowns Scheduled Cver Next 12 Months (Type, Date and Duration of Ecch):

Refueling, January

'.980, 5 weeks.

25.

If Shut Down at End Cf Report Period, Estimated Date of Startup:

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