ML20058A220

Monthly Oper Rept for Oct 1978

ML20058A220
Person / Time
Site:	Prairie Island
Issue date:	11/01/1978
From:	Hunstad A NORTHERN STATES POWER CO.
To:
Shared Package
ML20058A217	List: ML20058A214 ML20058A220
References
NUDOCS 7811140117
Download: ML20058A220 (8)

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'JAru TVR ST WAP3 07 r?ERSIING T.XPERIENCE DOCKET NO. 50-282 UNIT Preirie Island No.1 DATE 781101 CNTT.ETED BY A.

A. Hunstad i

TELEF"0NE 612-388-1767 1

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>y MOMTH October 1978 h

Operation was routine this month; no shutdowns.

l u9 On October 24th, leakage from No.12 charging pump (Ajax Model T-125) was noted.

y Inspection revealed a crack in the pump cylinder block. Repair of the block is in progress.

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l DAILY UNIT POWER OUTPUT DOCKET No. 50 282-UNIT Prairie Island No. 1 DATE 781101 i

COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 i

MONTH October 1978 DAY AVERACE LOAD MWc-Net DAY AVERAGE LOAD MWe-Net f

1 505 17 477 oc 2

505 18 506

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3 492 19 508 ef 4

478 20 503 3

502 21 503 l

6 504 22 507 7

506 23 508 8

508 24

-507 9

504 25 511 i

10 503 26 511 11 502 27 509 12 499 28 511 13 503 29 506 14 50 30 507 15 505 31 509 16 503 Average loads above 507 Mile-Net are due to coo 1er condenser circulating water.

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OPERATING DATA _ REPORT DOCKET NO 50-282 DATE 781101 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-388-4767,

i 1.

Unit "Jame:

Prairie Island No. 1 2.

Reporting Period:

October 1978 Notes 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):

538 7.

Maximum Dependable Capacity (Net MWe).

507 g

8.

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

E Give Reason:

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9.

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

10.

Reasons for Restrictions, If Any:

This Month Yr-To-Date Cu'.iula tive 11.

Hours In Reporting Period 745 7296 42744

~~~

12.

Number Of Hours Reactor Was Critical 745.0 6641.8 33226.6 13.

Reactor Reserve Shutdown Hours 0.0 103.0 4455.1

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Hours Generator On Line 745.0 6561.3 32261.9

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15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

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16.

Gross Thermal Energy Generated (MWH) 1218111 10147448 49981513 17.

Gross Electrical Energy Generated (MWH) 398300 3301050 16268570 18.

Net Electrical Energy Generated (MWH) 375095 3093651 15211365

19. Unit Service Factor 100.0 89.9 75.5

20. Unit Availability Factor 100.0 89.9 75.5

21. Unit Capacity Factor (Using MDC Net) 99.3 83.6 70.2

22. Unit Capacity Factor (Using DER Net) 95.0 80.0 67.1

23. Unit Forced Outage Rate 0.0 1.9 13.0 24.

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

Refueling, Spring 79, 5 weeks 25.

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

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UNIT Prairie Island No. 2 t

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DATE 781101 Cr?'Pl.ETED BY A. A. Hunstad TELE?f!ONE 612-388-4767 o

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DAILY UNIT POWER OUTPUT DOCKET NO. 50 306 UNIT Prairie Island No. 2 DATE 781101 COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 MONTH October 1978 l

1 DAY

.AVERACE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net -

1 449 17 497 E

2 497 18 503 2

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3 496 507 19 25 4

497 501 20 c.

5 497 501 21 6

498 504 22 7

503 507 23 8

503 509 24 9

497 507 25 10 497 509 26 11 497 506 i

27 12 495 509 28 501 437 13 29 14 504 502 39 15 507 509 31 16 500 I

Average loads above 507 !fic-Net are due to cooler condenser circulating water.

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w-4 OPERATING DATA REPORT DOCKET NO 50 306 DATE781101 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-388-4767 1.

Unic Name:

Prairie Island No.

2 2.

Reporting Period:

October 1978 Notes 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):

538 7.

Maximum Dependable Capacity (Net MWe).

507 8.

If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Sinec Last Report:

Give Reason:

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9.

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

,,o= 10.

Reasons for Restrictions, If Any:

u This !!onth Yr-To-Date Cu'.iu la tive 11.

Hours In Reporting Period 745 7296 33862 12.

Number Of Hours Reactor Was Critical 745.0 7158.0 29420.2 1

13. Reactor Reserve Shutdown Hours 0.0

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1378.7 '

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Hours Generator on Line 745.0 7138.6 28745.4 15.

Unit Reserve Shutdown Hours 0.0 0.0 0.0

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Gross Thermal Energy Generated (MWH) 1214054 11293040 44492154 17.

Gross Electrical Energy Generated (MWH) 394310 3677570 14084630 18.

Net Electrical Energy Generated (MWH) 371105 3454699 13175852 19.

Unit Service Factor 100.0 97.8 84.9

20. Unit Availability Factor 100.0 97.8 84.9 21.- Unit Capacity Factor (Using MDC Net) 98.3 93.4 76.7 22.

Unit Capacity Factor (Using DER Net) 94.0 89.3 73.4 '

23. Unit Forced Outoge Rate 0.0 0.4 6.2 ~

24.

Shutdosms Scheduled Over Next 12 Months (Type, Date and Duration of Each):

Refueling, November 26, 4 weeks 25.

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

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