ML20086M934

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

ML20086M934
Person / Time
Site:	North Anna
Issue date:	11/30/1991
From:	Mladen C, Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
91-742, NUDOCS 9112180159
Download: ML20086M934 (12)

Text

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Y!uoixlA I$1l!CTitlO ANil l'OWlut CHMi%NY lis en wow n, Vuonix 4 ununt December 13, 1991 U. S. Nuclear Regulatory Commission Serial No.

91 742 i

Attention: Document Control Desk NL&P/JMJ.imj j

Washington, D.C. 20555 Docket Nos.

50 338 50 339 C

i Licens0 Nos. NPF+4 NPF 7 yc Gentlemen:

' VIRGINIA-ELECTRIO AND POWER COML%M NOR*IH ANNA POWEB STATIO11 UNITS 1 AND 2 f

-MONTHLY-OPF,rj ATING REPOF3.1 q.

Enclosed is the Monthly 6perating Report for North Anna Power Station Units 1 and 2 s'-

for the month of November 1991.

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Wry truly yours,

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..W. L Stewar1 Senior Vice President Nuclear a

Enclosures :

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U.S. Nuclear Regulatory Commission 101 Marietta Street NW i

1 Suite 2900 Atlanta, GA - 30323.

Mr. M. S. Lesser NRC' Senior Resident inspector North Anna Power Station-

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4 VIRGINIA POWER COMPANY NORTl! ANNA POWER DTATION MONTitLY OPERATING REPORT i

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November-YEARt 1991 a

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(*liA1106 CA1A stP0af Doccti Wo.:

50 338 DATE: Decenber 2,1991 COMPLl1[D ST:

C. Mladen OPitAllWC $1ATU$

1. Un i t 't we t................................ W o r t h ( 'ns 1 2.

R epor t ing Pe r i od s.........................N ovect+ r 1991

3. L i c ens ed t heresal Powe r (MWt ).............

2,893 4.

W aneplate Rot ing (Cross We).............

947

5. Design tiectrical tating (Wet MWe):.......

907

6. Maaleue Deperdable Capacity (Cross We):..

959 7.

Maalaus Dependable Capacity (Wet MWe)....

911 8.

If changes occur in Capacity Ratings (ltene ko. 3 thru 7) since test report, give reasons:

W/A 9.

Pw,r levet to whict restricted, if any (het We): _,,, / A W

10. Reasons for restrictions, if any:

N/A this Month fat D CumJtative

11. Mour s i n 1: +or t i ng Per i od................................

T20.0 8.016.0 117,828.0

12. L' nber of Mours tenc tor was Cri t ic al....................

720.0 6.147.8 86,138.7

13. React >r Reserve shutdown Hours.....................

0.0 108.6 6,712.2

14. Wours Generator 0n Line.........................

720.0 6.002.5 83,222.5

15. Unit Reserve Shutdown Hours..............................

0.0 0.0 0.0

16. Cross thermat Energy Generated (MWM)..................... 2.082,258.8 16,386,333.6 221,372,569.6 1 T. Cross E lec t r i c e t Energy t.ene rat ed (MWM )..................

687,504.0 5,395,430.0 72.T36,768.0

18. Wet Electric..i (;iergy Generated (MVM)....................

656,183.0 5,128,527.0 68,857.279.0

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

100.0%

74.9%

70.6%

20. Uni t Av al t abi li ty F ac t or.................................

100.0%

74.9%

70.6%

21. Uni t Capac i t y f ac t or (us i ng MDC N et ).....................

100,0%

70.2%

65.2%

22. Uni t Capec i t y f actor (us ing Dit h e t ).....................

100.5%

70.5%

64.4%

23. f orc ed that e ge s e t e.......................................

0.0%

10.0%

12.3%

24. Shutdowns scheduled Over Went 6 Months (Type, Dete, and Duration of tech)_ Refueling /Melntenance Outage _

,$chedJLed f rorn 04/18/92 to 06/17/92

25. If Shutdown at etd of teport Period. estimated time of $ tart @s N/A

26. Units in fest Status (Prior to Comerclet operation):

Forecast Achieved IWillAL CRl11CAtl1T INITIAL ELECitlClif C0HHERCIAL DrtRA110N

t AVERAGE DAILY UNIT POWER LEVEL Docket No.

50-338 Unitt JA-1 Dates December 2.

1991 completed byt_ c. Mladen Phonet

,(1Q1) 894-2774 NONTH:

llovember 1991 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL LEVEL (HWe-Net)

LEVEL (HWe-Nat) 1 913 17 913 2

912 18 9_13_

3 911 19 912 4

909 20 913 5

910 21 912 6

909 22 912 7

912 23 912 8

913 24 912 9

912 25 913 10 911 26 911 11 912 27 911 12 912 28 910 13 911 -

29 911 14 912 30 911 15 904 16 912 Instructionst On this format, list the average daily unit power lovel in MWo-Not for each day in the reporting month, compute to the nearest whole megawatt.

+

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s Page 1

of __1 UNIT SHUTDOWN AND POWER REDUCTIOND Explanation Sheet Docket No.:

50-338 Report Month 1[RYC.m)2cr Unit Names flA-1 Year 1991-Dates December 2.

1991 completed by:

catnio filaden

• No entry this month.

r-UNIT SHUTDOWNS'AND POWER REDUCTIONS j.

DOCKET NO.:

50-338 UNIT NAME:

NA-1 DATE: December 2, 1991 REPORT MONTII: November 1991 COMPLETED BY:

C. Mladen J

PHONE:

(703) 894-2774 l'

2 3

4 5

No.

Date Type Duration Reason.

Method of Licensee System Component Cause & Correct 1/e (hrs)

Shutting Event Code Code Action to i

Down Reactor Report #

Prevent Recurrence i

).

ONo entry this month.

i

1

Type 2: Reason 3: Method 4:

'F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F

'nstructions

{

j S= Scheduled

.B= Maintenance or. Test i

2= Manual Scram for preparatic,2 of Data C= Refueling.

3= Automatic Scram Entry Sheets for Licensee i

D= Regulatory Restriction 4= Continuations Event Report (LER) File I

E= Operator Training & License Examination 5= Load Reduction (NUREG-Ol61)

F= Administrative-9=Other

-G=Operationa1 Error

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H=Other (explain)

Exhibi~ H - Same Source

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HORTH ANNA POWER DTATION UNIT No.

1 MONTH:

_NoveshpI_

HlitiARY OF OPERATIRQ_JXDJUJ; lire Listed below in chronological ooquence is a

aummary of operating o'oporiencon for this month which required load reductions or resulted in significant non-load related incidenta.

DAit T.lM DATA November 01, 1991 0000 Bogan month with unit at 100% power, 956MWo.

November 15, 1991 0845 Commenced unit ramp-down to 880MWo for TVFT.

0943 Unit stablo at 880MWo.

1050 TVFT completed natisfactorily.

1059 Commenced unit ramp-up to 100%

power.

1202 Unit stable at 100% powot, 950MWo.

November 30, 1991 2400 Ended month with unit at 100% power, 955MWo.

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OPitAll0C DA1A t! PORT Doccif No.:

50 339 Daft: Detec6er 2,1991 COMPLitt0 til C. Mladen PHOhts (703) 894 2774 OrttAllkG $1ATUS 1.

thi t W ame s................................ W or t h Arya 2 2.

R eport ing Per i odi.........................N ovect*r 1991 3.

L i c ensed t herme t Power (Wt ).............

2893 4

Nameplete toting (Cross We).............

947 besl n tiectricot Rating (ket We).......

907 5.

9 6.

Maalaus Deperdable Capetity (Cross We)..

957 7.

Maalaue Deperv$able Capacity (het We)....

909 8.

If changes occur in Cepecity totings (Items No. 3 thru 7) since test report, give reasons:

N/A 9 Power level to which restricted, if any (We* We):

,_ / A W

10. Reasons for restrictions, if any:

N/A This Month YtD Cunulat ive

11. Mour s i n R epor t i ng P t i l od................................

T20.0 8.016.0 96,096.0

12. Nu ter of Hours teactor was Critical.....................

678.1 7.857.6 78,991.9

13. t eac t or b ese rve shut cb.#n Hours...........................

41.9 107.8 6,057.4

14. H our s Gene r a t or 0n L i ne..................................

668.8 7,796.1 78,030.4

15. Uni t R es e rve shut down Hour s..............................

0.0 0.0 0.0

16. Cr oss therme t Erwegy Gener a t ed (WM )..................... 1,907,616.4 22.416,474.9 209,665,588.3

17. Cross tiectricot Energy Generated (WM).........

624,7T3.0 7,372,609.0 68,675,195.0

18. het El ec t r ical Energy Cereret ed (WM)....................

$94,641.0 7.012,776.0 65.828,256.0

19. Uni t S e rv i c e f ac t or......................................

92.9%

97.3%

81.2%

20. Uni t Ave l l ebi l i t y f ac t or.................................

92.9%

97.3%

81.2%

21. Lef t Capac i t y f ac t or (us ing MDC he t ).....................

90.9%

96.2%

76.1%

22. tmi t capac i ty f ac tor (using Die Wet).....................

91.1%

96.5%

75.5 %

23. f orc eo Out a g e s e t e.......................................

7.1%

2.7%

6.0%

24. Shutdowns Schedated 05. Next 6 Months (Type, D.ste, ard Duration of tech),,,,t e f ue l i ng/M a i nt enanc e Out a ge,,

,,,,,tchedsted f rom 02/01/92 to 04/01/92

25. If Shutdown at erd of Report Period, estle.ated time of Start @s N/A

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

forecast Achieved INiflAL CalflCAliff IW111AL ELICltlClif COMMERCIAL OPttATION

AVERAGE DAILY UNIT POWER LEVEL Docket No.:

50-339 Unitt NA-2 Datet December 2.

1991 completed by:

C. Mladen Phonet (703) 894-2774 MONTH:

November 1991 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL LEVEL (MWe-Net)

LEVEL (MWe-Net) 1 897 17 9 Q_4 2

~903 18 903 3

474 19 903 4

0 20 904 5

47 21 904 6

771 22

_904 7

905

'3

, __2 0 3 8

905

_4 903 9

903 25 904 10 903 26 905 11 903 27 904 12 903 28 904

-13 903 29 905 14 905 30 905 15 904 16 905 Instructions:

-On this format, list the average daily unit power level in MWo-Not for each day in the reporting month.

Compute to the nearest

-wholo mogawatt.

_1 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-339 j

UNIT NAME:

NA-2 DATE: Dece=ber 2, 1991 REPORT MONTH: November 1991 COMPLETED BY:

C. Mladen PHONE:

(703} 894-2774 1-2 3

4 5

'i

'No.

Date Type Duration Reason-Method of Licensee System Co=ponent Cause & Corrective (hrs)

Shutting Event Code Code Action to Down Reactor Report #

Prevent Recurrence j

sj 91-09 911103 F

51.2 A

1 91-011 BP ISV Packing Failure of RHR Valve.

Packing Replaced.

Evaluations Continuing to l

Enhance Methods for Valve Maintenance (refer to LER) i i

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j

'.1: Type 2: Reason 3: Method 4:

i F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F - Instructions l-S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data l

C= Refueling 3= Automatic Scram Entry Sheets for Licensee i

D= Regulatory Restriction 4= Continuations Event Report (LER) File E= Operator Training & License Examination 5= Load Reduction (NUREG-Ol61)

F= Administrative 9=Other G= Operational Error 5:

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H=Other (explain) 1 Exhibit H - Same Sourca 4

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Page 1

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_.1 UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Dhoot Docket No.t 50-339 Report Month November Unit Namet 11A-2 Yeart 333.1_,

Date December 2, 1991 Completed by:

Cathio Iilmien

/91-09 November 03, 1991 Commenced unit ramp-down at 1103 hours0.0128 days <br />0.306 hours <br />0.00182 weeks <br />4.196915e-4 months <br /> due to excessivo RCS leakage.

Main Generator taken off-line at 1441 hours0.0167 days <br />0.4 hours <br />0.00238 weeks <br />5.483005e-4 months <br />.

Main Turbino manually tripped at 1448 hours0.0168 days <br />0.402 hours <br />0.00239 weeks <br />5.50964e-4 months <br />.

Unit entered Modo 2 at 1450 hours0.0168 days <br />0.403 hours <br />0.0024 weeks <br />5.51725e-4 months <br />.

Unit ontored Mode 3 at 1456 hours0.0169 days <br />0.404 hours <br />0.00241 weeks <br />5.54008e-4 months <br />.

Unit ontored Modo 4 at 2132 hours0.0247 days <br />0.592 hours <br />0.00353 weeks <br />8.11226e-4 months <br />.

November 04, 1991 Unit ontored Modo 3 at 2048 hours0.0237 days <br />0.569 hours <br />0.00339 weeks <br />7.79264e-4 months <br />.

November 05, 1991 Unit entered Modo 2 at 0850 hours0.00984 days <br />0.236 hours <br />0.00141 weeks <br />3.23425e-4 months <br />.

Unit ontored Modo 1 at 1713 hours0.0198 days <br />0.476 hours <br />0.00283 weeks <br />6.517965e-4 months <br />.

Main Generator on-lino at 1753 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.670165e-4 months <br />.

Unit stable at approximately 30% power f or Chemistry hold at 1830 hours0.0212 days <br />0.508 hours <br />0.00303 weeks <br />6.96315e-4 months <br />.

November 06, 1991 Cleared Chemistry hold at 0225 hours0.0026 days <br />0.0625 hours <br />3.720238e-4 weeks <br />8.56125e-5 months <br />.

Commenced unit ramp-up at 0228 hours0.00264 days <br />0.0633 hours <br />3.769841e-4 weeks <br />8.6754e-5 months <br />.

Unit stable at 100% power at 1010 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.84305e-4 months <br />.

NORTH ANNA POWER STATION UNIT NO.!

2 MONTH

. November

SUMMARY

OP QPERATIHQ EXPIRIllipI Listed below in chronological sequence is a

summary of operating experiences for this month which required load reductions or resulted in significant non-load related incidents.

Rait TimA DATA November 01, 1991 0000 Began month with unit at 100% power, 948MWo.

November 03, 1991 1103 Commenced unit ramp-down to due excessive RCS leakage.

1441 Main Gonorator 'aken off-lino.

1448 Main Turbino manually tripped.

1450 Unit ontored Mode 2.

1456 Unit ontored Modo 3.

2132 Unit ontored Modo 4, in preparation for correctivo maintenanco on RHR valvo packing.

November 04, 1991 2048 Unit ontored Mode 3.

November 05, 1991 0850 Unit ontored Modo 2.

1713 Unit ontored Mode 1, commencing unit ramp-up to approximately 12% power.

1753 Main Generator placed on-lino.

1830 Unit stable at spproximately 30%

power for Chemistry hold.

November 06, 1991 022b Cleared chemistry hold.

0228 Commencing unit ramp-up.

1010 Unit stable at 100% power, 950MWo.

November 30, 1991 2400 Ended month with unit at 100% power, 951MWo.

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