ML20066G486

Monthly Operating Repts for Jan 1991 for North Anna Power Station Units 1 & 2

ML20066G486
Person / Time
Site:	North Anna
Issue date:	01/31/1991
From:	Mladen C, Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
91-078, 91-78, NUDOCS 9102190150
Download: ML20066G486 (12)

Text

_._ _ _ _ _ _ _.

YlltOINIA El.ncTuic Axn Pownu COMPANY lllCit M ON'), Vi tt u t NI A 202G1 February 14,1991 U. S. Nuclear Regulatory Commission Serial No.91-078 Attention: Document Control Desk NL&P/JMJ:jm]

Washington, D.C. 20555 Docket Nos.

50 338 y

4 h

50-339 License Nos. NPF-4 NPF-7 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 MONTHLY OPERATING REPORT Enclosed is the Monthly Operatirg Report for North Anna Power Station Units 1 and 2 for the month of January 1991.

Very truly yours, 17/ /6 1 y

- W. L. Stewart -

- Senior Vice President - Nuclear Enclosures-cc:

U.S. Nuclear Regulatory Commission-101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. M. S. Lesser

.NRC Senior Resident inspector North Anna Power Station f.

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VIRGINIA-POWER COMPANY.

' NORTH' ANNA-POWER STATION MONTHLY-OPERATING REPORT

_MONTHt. January

-YEAR 1 1991 l

Approved:

g'.

/Stfati'on Manager r:

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DOCKET No.:

50 338 DATE: February 4, 91 COMPLETED BY:

C. Mladen PHONE: (703) 894 2537 OPERATING STATUS 1.

Uni t N ame s................................ Nor t h Anna 1 2.

R eport i ng Per i od t........................ January 1991 3.

Licensed Thermal Power (MWt).............

2,893 4 Nameplate Rat ing (Gross MWe).............

947 5.

Design Electrical Rating (Net MWe):.......

907 6.

Maximum Dependable Capacity (Gross MWe)..

959 F.

Maximum Dependable capacity (Net MWe)....

911 8.

If changes occur in Capacity Ratings (!tems No. 3 thru 7) since last report, give reasons:

N/A 9.

Power level to which restricted, if any (Net MWe): _ N/A

-10. Reasons for restrictions, if any:

N/A This Month YtD Cumulative

11. Hours in Reporting Period...............

744.0 =

744.0 110,556.0

13. Number of Hours Reactnr was Critical....................

264.9 264.9 80,255.8

13. Reac tor Reserve Shutdown hours...........................

4.5 4.5 6,608.1

14. tlours Generator 0n-Line..................................

264.9 264.9 77,484.9

15. Uni t Reserve Shut down Hours..............................

0.0 0.0 0.0

16. Groso Thermal Energy Generated (MWH)....................,. 330,095.7 330,095.7 205,316,331.7

17. Gross E lec t r i cal ~ Energy Generat ed (MW4 )..................

106,174.0 106,174.0 67,447,512.0

18. het E l ect r i cal Energy Genera t ed (MWH)....................

96,3M ^

96,374.0 63,825,126.0

.19. Unit service factor......................................

35.6%

35.6%

70.1%

20. Uni t Avai labi li t y F ac tor................................

35.6% '

35.6%

70.1%

31. Unit Capacity Factor (using HDC Net).....................

14.2%

14.2%

64.5%

23. Unit Capacity Factor (using DER Net).....................

14.3%

14.3%

63.7%

23r F o r c ed Ou t a g e R a t e.......................................

0.0 0.0%

12.5%

24. Shutdowns. Scheduled Over Next 6 Months -(Type, Date, and Duration of Each):

_ 60 day Refueling Outage ccamonced 1/12/91

25..If Shutdown at end of Report Period, estimated time of Startup:

March,11,,1991

'26. Units in Test Status (Prior to Corrmercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

.=

AVERAGE DAILY UNIT POWER LEVEL Docket No.:

50-338 Unitt NA-1 y

Dates

- Febiuarv 4.

'91 Completed by:

C. Mladen Phonet-(703) 894-2537-MONTH:

January 1991 L

DAY AVERAGE DAILY, POWER DAY AVERAGE DAILY LEVEL l

LEVEL (MWe-Net)-

. LEVEL (MWe-Net)

1~

382 17 0

2 380' 18 0

3

-3<

379 19 0

._ -378 20 0-

'5

-376-21 0

6 365 22 0

7-349 23 0

8~

353 24 0

9 353 25

-0

- 10..

353 26-0 11 1--

345 27 0

12 :-

2 28; O

-13 0 --

29 0

c.14

'O 30-0 115

~ 31 0-1.

16-

'O l

Instruction's 1,?On this format, list-the average daily unit power level in MWe-Net?for each day in the reporting month.

Compute to the nearest c q!

wholeEmegawatt..

a 1

,.. f.,...............

' ~ ' - - " ^ ^ - - - - - ^ ' ^ - - - - - ~ ~ ^ ~ - ~ ~ ~ ~ - - - - - - ~ - - ~ ~ ~

~

7

.:n

.1.:, % -

~

.s-nUNIT' SHUTDOWNS AND..: POWER. REDUCTIONS-DOCKET NO.:,,

50-338.-

f!

~

UNIT NAME:

. NA-1s

~

.. DATE: January"3;c1991 i

REPORT MONTH:' January.

21991 COMPLETED BY:

C..Mladen.:

PHONE:.

(703):-894-2537--

'i

-1

-2:

3

.4' S

! No.

Date Type ~ Duration Reason Methodiof Licensee System. Component Cause &-Corrective

~(hrs).

Shutting Event Code Code Action to Down. Reactor ~ Report./

Prevent Recurrence-i:

.91-01 910112 S

479.2 C-1.

'N/A N/A-N/A S/G~ Maintenance scheduled' during upcoming outage, i

4 4

1: Type 2: Reason 3:-Method 4:

F= Forced

'A= Equipment--Failure (explain) 1= Manual Exhibit'F - Instructions.

S= Scheduled-B= Maintenance or: Test-2= Manual' Scram for-preparat. ion of~ Data

'C= Refueling 3= Automatic Scram Entry Sheets for Licensee D= Regulatory. Restriction-4= Continuations Event ~ Report (LER) File

-E= Operator Training & License Examination' 5= Load Reduction (NUREG-0161)

.F= Administrative c9=Other g

,.. a -

--.=

=

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F Page 1

o f,,__1 UNIT SHUTDOWN nrD POWER REDUCTIONS Explanation Sheet

. Docket _No.

50-338

Report Month January Unit Name:

NA-1 Yeart

-1991:_

Dates February 4.

' 91-completed by cathie Mladen

-#91-1'.-

January 12,-1991 LMain ~ Generator taken off-line at - 0050- houra.

-Unit entered Mode3 at.0123-hours.

Unit ~ entered Mode 4 at-1210' hours.-

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NORTH ANNA POWER STATION UNIT NO.!

1-MONTH:

Januarv

SUMMARY

OF OPERATING EXPERIENCE

. Listed-below: in chronological sequence _is a

sur. mary of operating experiences for this month which' required _ load reductions

. or resulted in significant non-load related incidents ~.

'Qatt Time Data

' January. 01,=1991 0000 Began month with unit at 45%, 415MW, in coastdown.for refueling.

2B,'3B,-

and 4B teedwater' heaters are out of:

service due to tube leaks in 3B

^

feedwater.

January 12, 1991

'0050_

Main Generator taken off-line.

0123

Entered-Mode 3.

t

.1210 Entered. Mode 4..

' January 13,: 1991-0550

' Entered Mode 5 :f or Refueling Outage.'

January-21, 19911 0435-

~ Entered ~ Mode 6.

J a n u a r y.;3 1_,

_1 9 9 1 2400; Ended month with unit in Mode ~6.

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[-

?[

e DOCKET No.:

50 339 DATE: February 4,91 COMPLETED BY C. Mladen PHONE: (703) 894 2537 OPERATING 11ATUS 1.

Unit Names................................ North Anna 2 2.

Report {ng Period:......................... January 1991 OPERATik0 DATA PEPORf 3.

Licensed Thermal Power (MWt):.............

2893 4 Nameplate Rating (0ross MWe).............

947 5.

Desiga E!ectrical Rating (Wet MWe).......

907 4.

Maximum Dependable Capacity (Gross MWe)..

957 7 Maximum Dependable Capacity (Net MWe)....

909 8.

If changes occur in capacity Ratings (Items No. 3 thru 7) since Last report, give reasota N/A 9.

Power level to which restricted, if any (Net MWe): _ N/A

10. Reasons for restrictions, lf any:

N/A This Month YtD Cumulative

-11. Hours in Reporting Period................................

744.0 744.0 88,824.0 12, Number of Hours Reactor was Critical.....................

744,0 744,0-71,878.3'

13. Reactor Reserve Shutdown Hours...........................

0.0 0.0 :

5,949.6 14.- Hours Gene ra t or 0n-L i ne..................................

744,0 744.0 70,978.3

15. Uni t R es erve Shutdown Hours............... -...............

0.0-0.0 0.0.

16. Cros: Thermal E nergy Generat ed (MVH)..................... 2,151,760.?.

2,151,760.2 189,400,873.6-

17. - Gross E lect r ical Energy Generated (MWH)..................

715,285.0 715,285.0 62,017,871.0-18.' Net Electrical Energy Generated (MWH)....................

681,295.0 681,295.0 59,406,775.0

19. lini t S e rv i c e f ac t o r......................................

100.0%

100.0%

79.9%

20. Unit Availability Factor.................................

100.0%

100.0%

79.9%

21. Unit Capacity Factor (using MDC Net).....................

100.7%

100.7%

74.5%

22. Unit Capacity Factor (using DER Net).....................

-101.0%

101.0%

-73.9%

.23. F o r c ed Ou t a g e R a t e......................................

0.0%

0.0%

6.3%

i

24. Shuidowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

,,,,,N ON E

25. If Shutdown at end of Report Period, estimated time of Startup _

N/A'

26. Units in Test Status (Prior to Comnercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

.. -z

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AVERAGE DAILY UNIT POWER LEVEL Docket No.:

'50-339 Units:

NA-2 Dete*

February 4.'91 Completed by:

C.

Mladen Phone:

_(J.0 3 ) 894-2537 MONTH:

January 1991 DAY.

AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL

' LEVEL'(MWe-Net)

LEVEL (MWe-Net)-

1-917 17-916--

2-917 18 916

3 917 19 916 4-906

'20 916 5

917 21 916

. 6.

-917 22 915'

~7 915 23-915

'8 -

916 24 915 9l 916 25.

-916

-10:

916=

26 916

.11-

=915 27

=916

~ 12 -

-916 28:

916

-13 916 29 916-

-14 917 30 916'-

~15 916 31 916-16 916 Instructions:

i On this' format, list the average daily unit power level in MWe -

i

' Net for;each day in the. reporting month.

Compute to the nearest 1.

iwhole megawatt.

i

u-Ui.IT ' SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-339 UNIT NAME:

NA-2 DATE:

February 4, 1991 REPORT MONTH: Jan: ary 1991 COMPLETED BY:

C. Mladen PHONE:

(703) 894-2537 1

2 3

4 5

No.

Date Type Duration Reason Method of Licensee System Component Cause & Corrective (hrs)

Shutting Event Code Code Action to Down Reactor Report #

Prevent Recurrence

• No entry this month l 1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F - Instructions S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licensee D= Regulatory Restriction 4= Continuations Event Report (LER) File E= Operator Training & License Examination 5= Load Reduction (NUREG-Ol61)

F= Administrative 9=Other 5:

G=Operaticnal Error

~

H=Other (explain)

Exhibit H - Same Source

g.

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Page 1

of

,_l-UNIT SHUTDOWN AND POWER REDUCTIONS Explanation 6iteet Docket No.t-50-339 Report Month January Unit Names.

'NA-2 Year 1991-Date:

S IS ruarv 4 91

~

4 Completed by:

Cathie_Mladen

'*NoLentryLthis; month.

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NORTil ANNA POWER STATION UNIT No.:

2 MONT}!!.. January HMMbRY OF OEEBATING IKEEBJIME Listed below in chronological sequence is

+

. mmary of operating experiences for this month which required Ic uctions or resulted in significant non-load related incidents.

DJ!Lt9 tie.R DAIA c

January 04, 1991 0000 Bogan month with unit at 100%,

957MWo.

January 04, 1991 0918 Commenced unit ramp down to 885 MWo fer TVFT.

1127 Completed 2-PT-34.3, TVFT.

q 1210 Unit at 97.5% power awaiting return of 2-SD-P-2A, low pressure heator drain

pump, from maintenance activities.

1505 Commenced ramp up to 100% power.

1524 Unit stabi.lized at 100% power.

January 31, 1991 2400 Ended month with unit at 100%, 963 MWe.

,