ML19340C504

Monthly Operating Repts for Oct 1980

ML19340C504
Person / Time
Site:	Prairie Island
Issue date:	11/01/1980
From:	Hunstad A NORTHERN STATES POWER CO.
To:
Shared Package
ML19340C503	List: ML19340C502 ML19340C504
References
NUDOCS 8011170510
Download: ML19340C504 (8)

Text

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE DOCKET h0. 50- 282 UNIT Prairic Island No.1 DATE 801101 COMPLETED BY A.A. Ilunstad TELEP110NE 612-388-4767 MONTH October, 1980 o

The unit was restarted after refueling and HP turbine reblading at 1250 on October 24, 1980. At 2215 the same day the unit was taken out of service y

for turbine overspeed testing and a ;;enerator short circuit test.

The unit was returned to service at 1343 on October 25, 1980 for power escalation.

Zero power physics testing showed a radial flux tilt of about 3%.

The tilt decreased to about 2.5% at 50% power and 1.85% at 100% power.

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SPENT FUEL STORAGE UPDATE Fuel assemblies in each core - No change Fuel assemblies in the spent fuel storage pool - 360 Licensed spent fuel storage pool capacity - No change Date of last refueling that can be discharged with present capacity - No change

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DAILY UNIT PO'.JER OUTPUT DOCKET NO. 50- 282 UNIT Prairie IslandlE. 1 DATE 801101 COMPLETED 1W A.A. Ilunstad TELEPHONE hl2-388-4767 MONTH October, 1980 DE AVERACE LOAD >Rie-Net DAY AVEPu\\GE LOAD Bnie-Net 1

-3 17

-11 2

-3 18

-14

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3

-3 19

-14 4

-3 20

-34 5

-3 21

-14 6

-3 22

-10 7

-3 23

-17 8

-3 24

-2

-3 25

-10 9

10

-3 26 264 11

-3 27 231 12

-3 28 233 13

-3 29 232 14

-3 30 241 15

-5 31 367 16

-14 4

l Average loads above 503 inic-Net are due to cooler condenser circulating water 4

6 4

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.o OPERATKNG DATA REPORT 3

DOCKET NO 50- 282_

DATE 801101 COMPLETED BY_A,A. Hunstad OPERATING STATUS TELEPHONE 612-388-4767 1.

Unit Name:

Prairie-Island No. ~ 1-2.

Reporting Period:

October. 1980

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 N

7.

Maximum Dependable Capacity.(Net MWe):

503 g

8.

If Changes 0ccur in Capacity. Ratings (Items Number 3 Through 7) Since Last Report:

Give Reason:

9.

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

o$ 10.

Reasons for Restrictions, If Any:

n.

This Month Yr-To-Date Cumulative 11.

Hours In Reporting Period 745 7320 60288

12.. Numler Of Hours Reactor Was Critical 244.5 5500.9 46709.3 13.

Reactor Reserve Shutdown Hours 0.0 0.0 5531.9' 14.

Hours Generator On Line 164.7 5411.2 45534.7

15. -Unit Reserve Shutdown Hours 0.0 0.0 0.0

, 16.

Gross Thermal Energy Generated (MWH).

133518 8274267 70353261

17. ' Gross Electrical Energy Generated (MWH) 42740 2536420 22690090

-18.

Net Electrical Energy Generated (MWH)-

33922 2360986 21200238

19. Unit Service Factor.

22.1 75.9 75.5' 20.

Unit Availability Factor 22.1 73.9 75.5 21.

Unit Capacity Factor (Using MDC Net) 9.1 64.1 69.9 22.

Unit Capacity Factor (Using DER Net) 8.6 60.9 66.3 23.

Unit Forced Outage Rate-0.0 3.2 12.5 24.

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

' Refueling. Sepenmher. -1981. 6 unoka 125.- If Shut Down at End:Of. Report Period, Estimated Date of Startup:

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. UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50 282 UNIT.NAME Prairic _ Island No.1

-REPORT MONTH October, 1980 DATE 801101 COMPLETED.BY A.A. Hunstad TELEPHONE' 612-388-4767 ec%

Licensee ao u

Cause & Corrective.

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.Date

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.E 38 Event 38 En

' Action to

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Report #

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. Prevent Recurrence L'

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564.8 C

2 N/A N/A N/A-Refueling..

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15.5 B

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N/A N/A N/A' Shutdown to perform turbine r

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'overspeed test and generator

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short circuit test.

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1 2

3 4

i F: Forced Reason Method:

Exhibit G-In k

S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for

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B-Maintenance or Test 2-Manual Trip Preparation of C-Refueling.

3-Automatic Trip Data Entry Sheets

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D-Regulatory Restriction 4-Other (Explain) for Licensee Event l

E-Operator Training & License Examination Report (LER) File F-Administrative (NUREG-0161) i j

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

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NARRATIVE SDetARY OF OPERATING EXPERIENCE I

j7 DOCKET No. 50- 306 UNIT Prairie Island No.2 DATE 801101 D

COMPLETED BY A.A. Hunstad 2.ELEPHONE 612-388-4767

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October, 1980 MONTH "A

1 At about 1611 on 10-20, a construction o

y The unit was base loaded this month.

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g workman accidentally bumped the trip switch for the breaker supplying power The turbine control valves drifted c7 ped upon ci o

to the turbine E-H pumps.

The reactor was tripped manually. The T

4 this loss of E-H fluid precsure.

unit was returned to service the next day at 0941.

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DATE 801101 COMPLEi t:D r,Y A.A. Ilunstad

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'ONT11_ October, 1980 i

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DAY AtcricE Torn i r.Jo-Ne t DAY AVERACE LOAD 35?c-I;e:

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505 17 492 508 18 485 512 p>

511 4

517 20 339 r.

516 21 249 i

6 507 n

507 O

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7 507 1

513 1

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506 24 512

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506 9

25 514 t

10 505 28 513 1

-6 tt 516 27 513 t7 516 2s 515 t3 513 29 509 512 30 509 t5 515 3;

505 514 1 r, I

1 Avi racc inads above 500 :nle-::et are due t o con t e r concicut.( r circo!ating a t.f r.

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OPERATING DATA REPORT DOCKET No 50- 306 DATE 801101 COMPLETED BY A.A. Ilunstad__

OPERATING STATUS TELEPHONE 612-388-4767 1.

Unit Name:

Prairie Island No.

2 N'8 2.

Reporting Period:

October, 1980 3.

Licensed Thermal Power (trJt):

1650 4.

Nameplate Rating (Gross MWe):

593 5.

Design Electrical Rating (Net trJe):

530 6.

Maximum Deperidable Capacity (Gross tric):

531 ss 7.

Maximum Dependable Capacity (Net trJe):

500 8.

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

g Give Reason:

i

[

9.

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

10.

Reasons for Restrictions, If Any:

This Month Yr-To-Date Cumulative 11.

llours In Reporting Period 745 7320 51406 12.

Number Of Hours Reactor Was Critical 732.4 5789.0 44917.8 13.

Reactor Reserve Shutdown Hours 12.6 102.0 1508.0 14.

Hours Generator On Line 727.5 5705.9 44106.9 15.

Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.

Gross Thermal Energy Generated (MWH) 1184220

_ 9_054612 68727115 17.

Gross Electrical Energy Generated (MWH) 391690 2927420 21981550 18.

Net Electrical Energy Generated (MWH) 369102 2737744 20576476 19.

Unit Service Factor 97.7 77.9 85.8 20.

Unit Availability Factor 97.7 77.9 85.8 1

21.

Unit Capacity Factor (Using MDC Net) 99.1 74.8 80.1 a

22.

Unit Capacity Factor (Using DER Net) 93.5 70.6 75.5 23.

Unit Forced Outage Rate 2.3 0.7

. 4.4 24.

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

nnfnoling; Februarm _lj.83. 6 weeks u

25.

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

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DOCKET NO.

50- 306

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REPORT F10NTil October, 1980 UNIT NAME Prairic Island No. 2 DATE 801101 COMPLETED BY A.AUlunstad TELEPHO"E f>12-388-4767

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Cause & Corrective s

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.33 Event 3 -E Em Action to Date I

N N$

2UN Report #

$0 E.$

Prevent Recurrence W O O

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17.5 G

2 N/A IIA CKTBRK Construction person accidentally bumped the trip switch for the breaker supplying power to the t

l.1 turbine E-Il pumps. Turbine control valves drifted closed on loss of E-H fluid pressure. Reactor was tripped manually.

F: Forced Reason

?!cthod:

Exhibit G-In-S: Scheduled A-Equipment railure(Explain) 1 -dianual 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 Enamination Report (LER) File F-Administrative (NUREC-0161)

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

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