ML20062E758

Monthly Oper Rept for Nov 1978

ML20062E758
Person / Time
Site:	Prairie Island
Issue date:	12/01/1978
From:	Hunstad A NORTHERN STATES POWER CO.
To:
Shared Package
ML20062E749	List: ML20062E744 ML20062E758
References
PINGP-353-REV, PINGP-353-REV-0, NUDOCS 7812120094
Download: ML20062E758 (8)

Text

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NARRATIVE SIMfARY OF OPERATING EXPERIENCE DOCKET NO. 50- 282 L711T Prairie Isinnd No.1 DATE 781201 Co!!PLETED BY A. A. Hunstad TELEPHONE 612-388-4767 o

>y MONTH November 1978 p

The unit was base loaded this month. Power reductions were taken on November 4th and 5th for cleaning of main condensers, and on November m

19th for replacement of a feedwater regulating valve actuator and addi-a-

tion of oil to a reactor coolant pump motor.

W SPENT FUEL STORAGE UPDATE Fuel assemblies in each core - No change Fuel assemblies in the spent fuel storage pool - No change Licensed spent fuel storage pool capacity - No change Date of last refueling that can be discharged with present capacity - No change l

2 I

DAILY UNIT POWER OUTPUT 4

DOCKET NO. 50-282 UNIT Prairie Island No. 1 j

DATE 781201 COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767 MONTH November 1978 1

,i DAY AVERACE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net c

1 509 17 515 i

2 503 18 519 3

497 19 116 g

a

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4 315 20 217 5

359 21 437 j

l 6

507 22 515 a

t i

7 506 23 514 8

507 24 474 I

9 502 25 517 10 507 26 518 j-1 l

11 512 27 518 t

12 518 28

-518 13 509 29 519 f

14

'515 30

-517 i

t I

15 516 31 16 516 l

r Average loads above 507 lr.,*e-Net are due to cooler condenser circulating water.

i.

OPERATING DATA _ REPORT 1

DOCKET NO 50 282 DATE 781201 COMPLETED BY A.

A. Hunstad OPERATING STATUS TELEPHONE 612-388-4767

'l 1.

Unit Name:

Prairie Island No.

1 2.

Reporting Period:

November 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.

Ebximum Dependable Capacity (Net MWe).

507

^

e g

8.

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

-i S

Give Reason:

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9.

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

o5 10.

Reasons for Restrictions, If Any:

A

+

7

. ~.

This Month Yr-To-Date-Cu.iulative i

11.

Hours In Reporting Period 720 8016

'43464 2.

Number Of Hours Reactor Was Critical 720.0 7361.8 33946.6 3.

Reactor Reserve Shutdown Hours-0.0 103.0 4455.l'.

14.

Hours Generator On Line 720.0 7281.3 _

32981.9 15.

Unit Reserve Shutdown Hours 0.0' O. 0_

0.0 16.

Gross Thermal Energy Generated (MWH) 1100717 11248165

'51082230 i

17.

Gross Electrical Energy Generated (MWH) 362910 3663960

. 16631480 l

18.

Net Electrical Energy Generated (MWH) 341038 3434689 15552403 t

19.

Unit Service Factor 100.0 90.8

.75.9 20.

Unit Availability Factor 100.0 90.8 75.9 1

21.

Unit Capacity Factor (Using MDC Net) 93.4 84.5-70.6 22.

Unit Capacity Factor (Using DER Net) 89.4 80.8 67.5 23.

Unit Forced Outage Rate 0.0

'l. 7 12.8 24.

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

Refueling, Spring 79, 5 weeks.

I 25.

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

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30- 282 RSPO'tf !!Oril November 1978 UNIT 3.VII Pr.nir12 I 4 land No. 4,-

D iTV - 781201 j

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'flidPa0.;E 512 - 133-4 767

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781204 S

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N/A N/A j llc llTEXCll

• Reduced power to 40% to clean one I

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j of the two main condensers.

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Reduced power to 40% to clean the M

781205 S l 0.0 B

N/A N/A IIC llTEXCll 4

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.I other main condenser.

781219 i E 0.0 B

N/A N/A j Cll VALV0P l Reduced power to 8% to replace a I

feedwater regulating valve actua-tor.

Operation for more than 2 i

j hours outside the' flux difference I

I

. target band necessitated 23 hours2.662037e-4 days <br />0.00639 hours <br />3.80291e-5 weeks <br />8.7515e-6 months <br />.

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l of operation below 50% power.

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F: Forced Reason

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Exhibit G-In-7 S: ';cheduled A-Sqt:1pmant Failure (Explain) 1 -Ilanu al struetions for B ' faint 2 nance or Test-2 -Manual Trip Preparation of.

C-Rafucling 3-.lutoriati: Trip Data Entry Sheets D-Regulatary Restriction I.-Other (ik >1ain) for Liccasca 8vcat E--Operatar Training 'S License Ex,nination -

Report (1.WI) Fili s

F-Mmin tutrat Eve

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NARRATTVE StivXARY 0" 00ERi[ING FNPERIENCE 1

POCKET NO. 50- 306 UNIT Preirie Taland Nn. 2

-DATE 781201 CPITT.ETED DY A.

A. Hiinmend TELEPi!ONE 612-388-4767 4

o

-y MONTH November 1978 m

in m

Core coastdown began about November 15th. The unit vss taken-off line at P-2345 on November 26th for the Cycle 3-4 Refueling.

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DAILY UNIT POWER OUTPUT l

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DOCKET NO. ' 50- 306 UNIT Prairie Island No. 2 DATE 781201 COMPLETED BY A. A. Hunstad TELEPHONE 612-388-4767-MONTH November 1978 DAY AVERACE LOAD MWe-Net DAY AVERACE LOAD MWe-Net c

f 1

507 17 484 2

502 18 474 ai 3

501 19 468 C3

{

4 513 20 465 5

515 21 458 6

506 22 451 7

502 23 445 8

500 24 444 9

494 25 436 10 500 26 375 1

)

11 507 27

-17 i

12 514 23

-6 13 501 29

-5 i

14 506 30

-4 15 503 31 j.

16 493

(

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

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OPERATING DATA REPORT

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f DOCKET N0_ 50 306 DATE 781201 i

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

i 1.

Unit Name:

Prairie Island No.

2 2.

Reporting Period:

November 1978 1 tes 3.

Licensed 1hermal Power (MWt):

1650 l

4.

Nameplate Rating (Gross MWe):

593 5.

Design Elcetrical Rating (Net MWe):

530 6.

Maximum Dependable Capacity (Gross MWe):

538 7.

Maximum Dependa'ble Capacity (Net MWe).

507 c

g 8.

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

r Give Reason:

1 m'

?

[

9.

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

a o3 10.

Reasons for Restrictions, If Any:

J This Month Yr-To-Date Cuquiative 11.

Hours In Reporting Period 720 8016

~34582

.2.

Number Of Hours Reactor Was Critical 625.2 7783.2,_

30045.4 I

.3.

Reactor Reserve Shutdown Hours 0.0

8. 2, _

1378.7 14.

Hours Generator On Line 623.8 7762.4 29369.2 15.

Unit Reserve Shutdown Hours 0.0 0.0 _

0.0 i

?

16.

Gross Thermal Energy Generated (MWH) 980582 12273622 45472736

~~

17.

Gross Electrical Energy Generated (MWH) 321110 3998680 14405740 18.

Net Electrical Energy Generated (MWH) 300901 3755600 13476753 19.

Unit Service Factor 86.6 96.8 84.9 20.

Unit Av..ilability Factor 86.6 96.8 84.9 l

21.

Unit Capacity Factor (Using MDC Net) 82.4 92.4 76.9

~

22. Unit Capacity Factor (Using DER Net) 78.9 88.4 73.5-

23. Unit Forced Outage Rate 0.0

0. 3 _

6.1 24.

Shutdowns-Scheduled Over Next 12 Months (~ype, Date and Duration of Each):

i Refueling, Fall 79, 5 Weeks i

25.

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

781218

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