ML20070A560

Monthly Operating Repts for Dec 1990 for North Anna Power Station Units 1 & 2

ML20070A560
Person / Time
Site:	North Anna
Issue date:	12/31/1990
From:	Mladen C, Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
91-010, 91-10, NUDOCS 9101230212
Download: ML20070A560 (12)

Text

,.

-)

1 YlltOIN!A ISI.!?CTitIC AND POWillt COMPANY l

! IllCitMON!),YlllOINI A 200 61 January 15,1991 1

U. S. Nuclear Regulatory Commission Serial No. 91 010 Attention: Documer~ Control Desh

. NL&P/JMJ:Jmj Washington, D.C. 20555 Docket Nos. 50 338 l

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 Operating Report for North Anna Power Station Units 1 and 2 for the month of December 1990.

Very truly yours, b

\da@v"s' W. L. Stewa 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 p

R

h .'; '

1.:.s,

W '

-9 j j$i g W Y, ,

,.*- {

g. ej . ,

t' : G

, o .. . ..

F' 01~. <

Q' +

b

.y

.i(

JVIRGINIA POWER COMPANY NORTH ANNA POWER STATION

< , ' MONTHLY' OPERATING REPORT i=

" i.,

MONTE

~ December.. YEAR: 1990

).

[

.W 0

+

... h t

[\ ' ,'

s 3

l'f ;

Approved:

(c9;.. -

.; $ i

'O

+ 4

' Station Manager

~

~r,-- ,

w , s. w , - - - .. , , - - - , , - ,

DDCKET Wo.: 50 338 DATE: January 3,1991 COMPLETED ST: C. Mladen PHONE: (703) 894 2537 OPERATING STATUS l

l

1. Uni t N ame s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . N o r t h Anna 1 l

3. R eoor t ing Per i od s . . . . . . . . . . . . . . . . . . . . . . . . .Dec enbec 1990 I

3. Licensed Thermal Power (MWt) . . . . . . . . . . . . . 2,893

4. Nameplate Rating (Gross MWe):............. J 947 1

5. Design Electrical Rating (Net MWe):....... 907

6. Maximum Dependable Capacity (Gross MVe):.. 959

7. Maximum Dependable capacity (Net KWe)s.... 911

8. If changes occur in Capacity Ratings (items No. 3 thru 7) since test report, give reasons:

N/A

9. Power levet to which restricted, lf any (Net MWe): ___N/A

10. Reasons for restrictions,-if any: N/A This Month YtD Cumulative

11. Hours-in Reporting Period................................ '744.0 8,760.0 109,812.0

12. Number.of Hours Reactor was Critical,.................... 744.0 8,748.4 79,990.9-

13. Reactor Reserve Shutdown Hours........................... 0.0 0.0 6,603.6

-14. Hours Generator 0n Line.................................. 744.0 8,726.0 77,220.0

15. Uni t Recerve Shutdown Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 0.0 0.0

16. Cross Thermal Energy Generated (MWH)..................... 1,117,229.9 23,095,458.0 204,986,236.0

17. Gross E l ectrical Energy Generat ed (MWH) . . . . . . . . . . . . . . . . . . 356,775.0 7,634,516.0 67,341,338.0

19. . Net E lect rical E nergy Genera t ed (MWH) . . . . . . . . . . . . . . . . . . . . 327,510.0 7,233,539.0 63,728,752.0

19. Unit Service Factor...................................... 100.0% 99.6%- 70.3%

20. Uni t Ava l t abi l i ty F ac t or . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100.0%' 99.6% 70.3%

= 21. Uni t Capac i ty Fac tor (us lng MDC Net ) . . . . . . . . . . . . . . . . . . . . . 48.'3% 90.5% 64.9%

- 22. Uni t Capaci ty Fac tor (using DER Net). . . . . . . . . . . . . . . . . . . . . 48.5% 91.0% 64.0%

23. F or ced Ou t a g e R a t e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0 0.4% 12.5%

34 Shutdowns Scheduled Over Next 6 Montiis (Type, Date, and Duration of Each):

__60

• day Refueling Outage scheduled 1/11/91

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

26. Units in Test Status (Prior to Commercial Operetten):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY l- COMMERCIAL OPERATION l

L

~: ,

i AVERAGE' DAILY UNIT POWER LEVEL ,

1 Docket No.t U-338 Unit: IIA-1

.Date: January 3. '90 completed by: C. Mladen Phonet (703)-094-2537 MONTH: Decerber-1990

. DAY AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL-LEVEL (MWe-Net) LEVEL (MWe-Net) 1 497 17 _ 438 2 495 18 437 3 494 19 435 4 _.,_491 20 434 5, _. 475 - 21. 433 6 466 22 421

-7 466 23 __ 408 8 465 24 408 ,

9 463 25 406

__ -462 26 405 '

11 460 27 404' l 12 447 28 386 -

13 443 29 402 L14 442 30 387 15; 442 31 379 .l

'.16 - 440 L

Instructions 0?

.On this' format, list the average daily-unit poker level in MWe-Net:for each day in,the reporting month,

. compute to~the-nearest a.- whole megawatt.

NORTH ANNA POWER STATION' UNIT NO. 1 MONTH: Jecember

SUMMARY

OF OPERATING EXPERIENCE 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.

Date Time Data December 01, ifs 90 0000 Began month with unit at 59%, 540MW, in coastdown for refueling. 2B, 3B, and 4B feedwater heaters are out of service due to tube leaks in 3B feedwater.

December 10, 1990 1130 Completed 1-PT-34.3, TVFT.

December 31, 1990 2400 Ended month with unit at 45%, 415MW.

I 1

9 , *;

. UNIT' SHUTDOWNS AND POWER REDUCTIONS'- .

DOCKET NO.': 50-338 UNIT NAME: NA-1 DATE: January 3, 1991--

REPORT MONTH: December 1990 COMPLETED BY: C. Mladen PHONE: (703) 894-2E37 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 ONo entry this month 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 G= Operational Error 5:

H=Other (explain) Exhibit H - Same Source-

~

e, . _ = .__ ,(

L' r , . . ' -  :

7.n : '- .t. }

... - u Page.-. =1 o f d. .

i 1

?

UNIT SHUTDOWN AND' POWER REDUCTIONS Explanation' Sheet .l Docket No.: 50-338 Report Month December Unit Names. NA -Years' 1990 Date: January 3, '90 Completed by: Cathie Mladen

l 1

• NoLentryLthis month' n ,

I 4

k I- ~

+

+

( .:

Li i

f

}

li i

l

, . . , -. . - .. ~.,_,

OPERATING DATA REPOR7 DOCKET N0.: 50 339 DATE: January 3, 91 COMPLETED BY C. Mladen PHONE: (703) 894 2537 4

OPERATING STATUS

1. Uni t N ame : . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . N or t h Anna 2

2. Repor t i ng Per i od s . . . . . . . . . . . . . . . . . . . . . . . . .Dec ember 1990

'3. Licensed thermal Power (MWt):............. 2893

4. Nameplate Rating (Gross MWe) ............. 947 1

5. Desfon Electrical Rating (Net MWe):....... 907 4

6. Maxinun Dependable Capacity (Gross MWe):.. 957

7. Maxinun Dependable Capacity (Net MWe):.... 909

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

N/A i

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

10. Reasons for restrictions, if any: N/A i

This Month YtD Cumulative  ;

11.. Hours in Reporting Period................................ 744.0 8,760.0 88,080.0

12. Number of Hours Reactor was C cal..................... 744.0 7,012.2 71,134.3 i

13. Reactor Reserve Shutdown Hours........................... 0.0 94.7 5,949.6 i

14. Hours Generator 0n Line.................................. 744.0 6,982,4 70,234.3

15. Unit Reserve Shutdown Hours.............................. 0.0 0.0 0.0

'16. Gross Thermal Energy Generated (MWH)..................... 2,148,055.7 19,102,766.4 187,249,113.4 ,

17. Gross E lectrical Energy Generated (MWH) . . . . . . . . . . . . . . . . . . 714,395.0 6,297,069.0 61,302,586.0 .!

18. Net E lectr ical Energy Generated (MWH) . . . . . . . . . . . . . . . . . . . . 680,798.0 5,976,648.0 58,815,480,0

19. Unit Service Factor...................................... 100.0% .79.7% 79.7%

20. Unit Avaltability Factor................................. 100.0% 79.7% 79.7%

21. Unit Capacity Factor (using MDC Net)..................... 100.7% 74.9% 74.3%

22. Unit Capacity Factor (using DER Net)..................... 100.9% 75 .2% 73.6%

23.' Forced Outage Rate....................................... 0.0% 0.4% 6.4%

24. Shutdowns Scheduled over Next 6 Months (Type, Date, and Duration of Each): None t

25. If Shutdown at end of Report Period, estimated time of Startup: N/A 26.; Units in Test Status (Prior to Comercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

l AVERAGE DAILY UNIT POWER LEVEL Docket No.1 50-339 Unitt NA-2 Datet January 3. '90 Completed by: C. Mladen Phonet (703) 894-2537 MONTH: __ December 1990 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY LEVEL LEVEL (MWe-Net) LEVEL (MWe-Net) 1 915 17 917 2 916 18 918 3 917 19 918 4 916 20 919 5 915 21 918 6 915 22 919 7 __ 915 23 918 8: ,_

916 24 918 9 858 25 917 10 _

917 26 917 11 916 27 917 12 917 28 917 13 917 29 917 14 917 30 917 15 917 31 918 16 917 Instructionst

'on this format, list the average daily unit power level in MWe-Not for each day in the reporting month. Compute to the nearest whole megawatt, i

- _ _ - - -. _ _ -.m . _ . . . _- . ~ .

. ,p: - - -

1 I

%- - =-

1

. l t-NORTH-ANFA POWER-STATION i'

UNIT NO. 2

-MONTH:-;Qgcember REMMARY OF OPERATING EXPERIENCE ,

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.

l Datt- -Ilmt Data December 01, 1990 0000 Began' month with. Unit -at 100%, 1 957MWo.

= December 09,-1990 0048 Commenced unit ramp down to 8 8 0MW-for TVFT.

4 0117 Unit-stabilized at 880MW~ .

1725 Completed-2-PT-34.3, TVFT.-

1730 Commenced unit ramp up to 98% for 2-PT-24.1,^NI calibration.

'1800 Unit stabilized at 98%.

1817 Completed 2-PT-24.1_ and commenced unit ramp up'_to-100%.

1830 Unit stabilized at 100%..

LDecember 31, 1990'- -

2400. Ended month with unit- at 100%,:

957MWe.

z

a . ..

l .

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 339 UNIT NAME: NA-2 DATE: January 3, 1991 REPORT MONTH: December 1990 COMPLETED BY: C. Mladen PHONE: (703) 894-2537 2 3 4 5 1 Cause & Corrective Type Duration Reason Method of Licensee System Component No. Date Action to (hrs) Shutting Event Code -Code Down Reactor Report # Prevent Recurrence ONo entry this month 3: Method 4:

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

F= Administrative 9=Other 5:

G= Operational Error Exhibit H - Same Source H=Other (explain) l l ..

. 7 t- _ _ _ _ _ _

.-c i

c

:

=

l

, n -

-+ ; v -. - ,-

-^

t 4

4 i

Page- 1 of __1-s UNIT SHUTDOWN AND POWER REDUCTIONS-Explanation Sheet  ;

50-339 '

Docket No.:

_ Report Month December ' Unit Names NA-2 Yeart 1990- Datet'_Januarv=3. 90- _

Completed by: Cathie-Mladen i

? 1

• No entry this1 month 4

m I

'l i t=-

l. _+

r z,

d

I a

.t i

,