ML20128C616

Monthly Operating Rept for Feb 1978 for Monticello Nuclear Generating Plant

ML20128C616
Person / Time
Site:	Monticello
Issue date:	02/28/1978
From:	Mayer L, Myrabo A NORTHERN STATES POWER CO.
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
NUDOCS 9212040488
Download: ML20128C616 (5)

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2 NORTHERN 5TATES POWER COMPANY MIN N E A PO LI S. M S N N E GOTA 95404 lkl n..

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a wa 4 v.s m1973 Q Director, Office of Management O

Information & Program Control C3 c/o Distribution Services Branch, DDC, ADM b

U S Nuclear Regulatory Commission Washington, DC 20555

Dear Sir:

MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Monthly Operating Report February 1978 Attached are two copies of the Monthly Operating Report for February, 1978 for the Monticello Nuclear Generating Plant.

Yours very truly,

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A L 0 Mayer, PE Manager of Nuclear Support Services IDM/ak cc: Director, IE-III, USNRC (1)

(Director, IE, USNRC (c/o DSB) (10)

MPCA Attn: J W Ferman 0

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l 9212040488 780228 780720022 PDR ADOCK 05000263 R

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NARRATIVE SIM4\\Rf 0F OPERATING EXPERIENCE DOCKET NO.

50-263 LNIT 1

l DATE 3/6/78 00$PLETED BY A. L. Mvrabo TELEPIKNE 612/295-5151, Ext. 239

?DNTI Febmary 4

2/1/78 to Operated at 100% of rated power.

2/2/78 2/3/78 Orderly shutdown for rod sequence exchange and re-pair / inspection of tonis vacuum breakers. Trued up bearing housings and bearings and adjusted end clear-ance on toms to drywell vacuum breakers "B" and

" T". Changed out topworks on "A" relief valve due to leak around strainer plug.

2/4/78 Operated at approximately 100% of rated power, except to for weekend reductions to perform control rod exercising 2/22/78 and valve testing.

2/23/78 Reactor scram due to low condenser vacuum caused by both circulating water pumps tripping from spurious flood protection circuit signal.

2/24/78 to Operated at 100% of rated power.

2/28/78 Spent Fuel Storage Update Fuel assemblies in the core - 484 Fuel assemblies in the spent fuel storage pool - 616 Licensed spent fuel storage pool capacity - 740 Date of last refueling that can be discharged with present capacity -Oct, 1978

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OPER ATING DATA REPORT i

DOCKETNO. 50-263 DATE 3/1/78 COMPLETED BY. A.MYRA110 i

TELEPHONE 612/20s.E151 4

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OPERATING STATUS b

Monticello Notes

1. Unit Name:

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2. deportmg Period:

Febmarv

.l. Licenwd Thermal Power (MWI):

1670 569

4. Nameplate Rating (Grun Mhel.

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5. Design Electrical Rating (Net MWel:

545.4-564 l

6. Masimum Dependable Capacity (Gross MWel:

536 7 Masimum Dependahic Capacity (Net MWe):

h. If Changes Occur in Capacity Ratine titems Number 3 Through 7) Since Last Report. Gise Reawne (Net MWel:

N/A

9. Power Letel To Which Restricted.lf Any/A N

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10. Reasons For Restrictions,If Any.:

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This Month Yr..to Date Cumulative 1

672 1.416 5_8,441 1 l

11. Hours in Reporting Period l

12. Number Of Hours Resetor Was Critical 644.2 1.388.2 46.556 6 1.1. Reactor Resene Shutdown Hours 0.0 0.0

-940.7

14. Hours Generatm On.Line 630.3 1,374.3 45,151.7 0.0 0.0 0.0

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15. Unit Resene Shutdown lluurs

16. Cross Thermal Energy Generated (MWH) 974.500.8 2.207.824.8 75_.862.399.4

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17. Gruss Electrical Energy Generated (MWH).

334.120_. _,..

756.750 23.129.440

15. Net Electrical Energy Generated (MWH) 321.696 729'.302 22'.105.676

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19. Unit Senice Factor 93.8%

97.1%

77.3%

93.8%

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20. Unit Availabi:ity Facto,

'7.3%

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21. Unit Capacity Factor IUsing MDC Neti 89.3%

96.1%

70.6%

87 8%

94 4%-

69.4%

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Unit Capacity Factor (Using DER Net)-

23. Unit Forced Outage Rate 1.6%

-0.7%

7.8%

21. Shutdowns Schedukd User Ne.st 6 Monthy(Type Date,and Duration of Each):

Refueline Outane. October 16. 1978. 40 days

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

N/A

26. Units in Test Status (Prior to Commercial Operations N/A Forecast

~ Achieved INITI AL CRITICALITY r

INITIA L ELECTRICITY COMMERCI A L OPER ATION

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AVER 4CE D ALLY UNIT POWER LEVEL 50-263 DOCKET NO.

i hbnticello 3,IT DATE 3/1/78 COMPLETED fiY A. hhRABO TELEPl10NE MONTil FEBRUARY DAY AVER AGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL Olwe Net) i M w e.Neil i

I 553 553 37 1

345 553 2

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-5 497 in 221 4

20 547 5

379 2

549 484 6

22 550 23 217 7

RTt 8

538 400 2.s 9

541 25 494 10 540 545 26 11 546 27 549 12 516 d

-28 551 13 553

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14 553 30

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15 ERO 3

16 553 4

INSTR UCTIONS On this format.hst the average daily umt power Icelin MWe Net for each day m the reporting month.(ompute to the nearest whole megawatt.

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l UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-263 UNIT NAME Mnrit i rel in DATE 1/1/7R COMPLETED BY A-W rabo REPORTMONTis February TELEPHONE 612/295-5151 1 u,

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Cause & Cusressive

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4 ise Event s2 s.E Action to L.

Date i

$5 5

j5g Report :

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Presen: Recurrent'e 6

1 770202 F

31.4 A

1 78-02-01-T SA VALVEX Rod sequence exchange and repair /

inspection of torus vacuum breaker (stuck open).. All torus vacuta breakers tested and adjusted.

2 770223 F

10.3

-A-3 N/A IIF ZZZZZE Reactor scram on low condenser vacuum caused by both circulating water pumps tripping from spurious flood protection system signal.

Flood protection system deactivated for further testing.

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i' Fueced Reaom:

\\tethod :

Exhibis G - Insieuiti ms S Sched ufes!

A l~quipment FailureIExplaml

! \\tanual for Prep.iratum of Dara B. Maintenance of Test 2-Manual Scram.

Entry Sheets fe: Ixemcc C. Refueling LOther i E splaml 01616 4 Aufum iic S, ram.

Esent Repori LI RI File INURE G-D-Regulatos) Restiiction.

' t 1 Operator Training & Litenw 1%aminaiam F4dnunistrati.c -

5 G-Operational Es roe ILsplaml Estubit I - Same Source

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