ML20148B377

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Monthly Operating Repts for Apr 1997 for North Anna Power Station Units 1 & 2
ML20148B377
Person / Time
Site: North Anna  
Issue date: 04/30/1997
From: Matthews W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
97-288, NUDOCS 9705130068
Download: ML20148B377 (13)
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VIHOINIA ELECTRIC AND Powna COMi%NY Ricnwono, VIRGINIA 20261 May 7,1997 United States Nuclear Regulatory Commission Serial No.97-288 Attention: Document Control Desk NAPS /JHL Washington, D. C. 20555 Docket Nos. 50-338 50-339 License Nos. NPF-4 NPF-7 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NQfLIliANfMLEQWER STATION UNIT NOS.1 AND 2 MONTHLY OPERATING REPORT Enclosed is the April 1997 Monthly Operating Report for North Anna Power Station Unit 1 and 2. ,

Very truly yours, DSW W. R. Matthews Station Manager I i

L Enclosure

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cc: U. S. Nuclear Regulatory Commission Region II s- Y  ;

Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 NRC Senior Resident inspector North Anna Power Station 9705130068 970430 8 DR ADOCK 0500 III!llll{llllll(l[]!

VIRGINIA POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH: bpril YEAR: 1997 Approved:

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$12N Station Manager

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,. ,, CPERATING DATA REP RT l

DOCKET No.: 50-338 DATE: May 5, 1991 CONTACT: W. R. Matthews PHONE: (540) 894-2101 OPERATING STATUS

1. Unit Names. . . . . . . North Anna 1
2. Reporting Periods... . . .. April 1997 1
3. Licensed Thernal Power (MWtit. . .. 2,893 I
4. Nameplate Rating (Gross MWe) . . . 994
5. Design Electrical Rating l Net Fbb) . . 907 l
6. Maximum Dependable capacity (Gross HWel s . 940
7. Maximum Dependable Capacity (Net MWe) s . . . 893 1
8. If changes occur to Capacity Ratings (Iteps 3 thru 7) since last report, give reasonst N/A I
9. Power level to which restricted, if any (Net Fbk): N/A
10. Reasons f or restrictions, if anyt N/A l

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1 This Month Y-t-D Cumulative l

11. Hours in Reporting Period. . . . . . .. . . . 720.0 2,800.0 165,300.0 l
12. Nunber of Hours Reactor was Critical . . 720.0 2,880.0 120,097.2
13. Reactor Reserve Shutdown Hours. . . .. 0.0 0.0 7,046.0 I
14. Hours Generator On-Line. . .. . . 720.0 2,680.0 125,053.8 l
15. Unit Reserve Shutdown Hours. . 0.0 0.0 0.0 l
16. Gross Thermal Energy Generated it%*0 . . . . 2,019,207.4 8,325,771.9 335,906,308.5  !

17 Gross Electrical Energy Generated ( >**0 . .. 681,782.0 2,728,067.0 147,310,753.0

18. Het Electrical Energy Generated (MWH) . . , . . . 649,799.0 2,597,708.0 104,584,362.0
19. Unit Service Factor. . . . . . 100.06 100.04 75.7%
20. Unit Availability Factor. . . . . . . 100.06 100.0% 75.1%
21. Unit capacity Factor (using MDC Net) . . . 101.15 101.04 70.8%

l 22. Unit Capacity Factor tusing DER Net). , 99.54 99.4% 69.8% '

f 23. Forced Outage Rate. . . . ... . 0.0% 0.06 8.6% l l

24. Shutdohms Scheduled Over Next 6 Months (Type, Date, Duration of Each): Scheduled Refueling Outage l beginning May 11, 1997, duration =35 days.
25. If Shutdown at end of Report Period, estineted time of Startup N/A
26. Units in Test Status (Prior to Concercial Operation):

Forecast Achieved INITI AL CRITICALITY INITI AL ELECTPICITY Ca>94ERCIAL OPEPATION i

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4 AVERAGE DAILY UNIT POWER LEVEL Docket No. : 50-338 Unit: NA-1 Date: May 5, 1997

Contact:

W. R. Matthews Phone: (540) 894-2101 MONTH: April 1997 '

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 903 17 907 2 903 18 907 3 903 19 908 4 903 20 907 5 903 21 903 6 902 22 903 7 902 23 903 8 903 24 903 9 903 25 899 10 903 26 903 11 903 27 904 l 12 903 28 902 l

13 903 29 903 14 907 30 903 l 15 907 t

16 907 l

Instructions:

On this format, list the average daily unit power level in MWe-l Net for each day in the reporting month. Compute to the nearest

! whole megawatt.

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NORTH ANNA POWER STATION UNIT NO.: 1 MONTH: April SUte4ARY OF OPERATING EXPERIENCE Page 1 of 1 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.

1 Date Time Data I April 01, 1997 0000 Began month with unit at 100% power, 949 MWe.

April 25, 1997 0933 Commence unit ramp down for performance of Turbine Valve Freedom Test (TVFT) from 100%

power, 950 MWe. j 1015 Unit stable at 91.9% power, 879 MWe.

1039 TVFT complete satisfactorily. Commence unit ramp to 100% power.

1153 Unit stable at 100% power, 946 MWe.

April 30, 1997 2400 Ended month with unit stable at 100% power, 949 MWe.

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i UNIT SHUTDOWN AND POWER REDUCTIONS i i

Explanation Sheet 4

i i 50-338 4

Docket No.: i i

l Report Month April Unit Name: NA-1  !

Year: -1997 Date: May 5, 1997 ,

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Contact:

W. R. Matthews t

  • No entries this month.

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-UNIT SHUTDOWS AND POWER REDUCTIONS DOCKET NO.: 50-338 -

UNIT NAME: NA-1 DATE: May 5, 1997 REPORT MONTH: April 1997 CONTACT: W. R. Matthews -

PHONE: (540) 894-2101 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 i Prevent Recurrence

  • No entries this month.

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't 1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions l S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3=Automa. tic Scram Entry Sheets for Licensee r

D= Regulatory Restriction 4= Continuations Event Report (LER) File E= Operator Training & License. Examination 5= Load Reduction (NUREG-0161)

F= Administrative 9=Other G= Operational Error 5: i H=Other (explain) Exhibit H - Same Source 4

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  • s CPERATING DATA REPORT t

DOCKET NO. 50-339 DATEt May 5, 1997 CONTACTt W. R. Matthews PHONE (540) 894-2101 CtERATING STAINS

1. Unit Namet. ... .. . . . North Anna 2
2. Reporting Periodt... . . . . ... .. April 1991
3. Licensed Thermal Power (MWt) . . 2,893
4. Nameplate Rating (Gross % )4.. . . .. 979
5. Design Electrical Rating (Net MWel .. . . 907
6. Maximum Dependable Capacity (Gross M4e): . 944
7. Maximum Dependable Capacity (Net MWe)1. .. . 897 l

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8.  !! changes occur to Capacity Ratings (Items 3 thru 7) since last report, give reasons: N/A  ;
9. Power level to which restricted, if any (Net MWolt N/A
10. Reasons for restrictions, if anyt N/A This Month Y- t- D Cumulative 'i
11. Hours in Reporting Period.. . . . . .. 120.0 2,880.0 143,568.0 l
12. Number of Hours Reactor was Critical. . .. .. . 720.0 2,880.0 119,835.2 l
13. Reactor Maerve Shutdown Hours. . . .. 0.0 0.0 7,162.2
14. Hours Genesstor On-Line. . . . . . . 720.0 2,880.0 118,664.2
15. Unit Reserve 2hutdown Hours. . . . . . . 0.0 0.0 0.0
16. Gross Thermal Entroy Generated (MWis) . ... .. . . . . 2,079,415.6 8,324,016.2 323,905,934.2
17. Gross Electrical Enery, Generated (MWH). . .. . . 681,62].0 2,730,115.0 105,999,350.0 18 Net Electrical Energy Generated (MWH) . . . 649,866.0 2,601,177.0 101,294,359.0 l
19. Unit Service Factor. . . . . ... . 100.06 100.06 82.7%
20. Unit Availability Factor . . .. . . . . . 100.0% 100.04 82.74
21. Unit Capacity Factor (using MDC Net) . . . 100.64 100.7% 78.5% i
22. Unit Capacity Facter (using DER Net) . . .. . ... 99.5% 99.6% 77.8%
23. l Forced Outage Rate.. . . .. . . . . 0.06 0.0% 5.3% 1
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, Duration of facn): N/A
25. If Shutdown at end of Report Period, estirs.ated time of Startup: N/A
26. Units in Test Status (Prior to Coasnercial Operation):

Forecast Achieved INITIAL CRIT]CALITY INITIAL ELECTRICITY CC$fERCI AL OPERATION

AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-339

Unit: NA-2 Date: May 5, 1997

Contact:

W. R. Matthews Phone: (540) 894-2101 I

MONTH: April 1997.

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER j LEVEL - (MWe-Net) LEVEL (MWe-Net)

I 1 903 17 907 2 902 18 907 3 902 19 908 4 901 20 908 5 902 21 904 6 902 22 904 4 7 902 23 903 i 8 903 24 903 l 9 904 25 903  !

10 904 26 903 11 899 27 903 l 12 903 28 902 '

13 904 29 903 14 909 30 903 i 15 908 16 907 Instructions:

On this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

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' NORTH ANNA POWER STATION UNIT NO.: 2 MONTH: April .

SUt44ARY OF OPERATING EXPERIENCE ,

Page 1 of 2 Listed below in chronological sequence is a summary of operating ,

es:periences for this month which required load reductions or resulted in i significant non-load related incidents.  ;

Date Time Data- {

i April 01, 1997 0000 Began month in Mode 1 at 100% power, 948 MWe,  ;

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~ April 09, 1997 0710 Received Defcaming Tank Level - High t annunciator 2T-C3.  !

1010 Received water detection annunciator for ,

l 2-GM-LS-211-3. Investigation revealed oil in detector versus water.  !

1118 Commenced unit ramp per step 2.3 of 3 annunciator response 2-AR-T-B2 (Water Detector High) from 100% power, 949 MWe. Ramping at-0.3% per hour.

1144 Performing change to annunciator response for

  • water detector high 2-AR-T-B2 in accordance with Westinghouse memorandum stating that operation is allowed with limited amount of i continuous oil ingress. Ramp terminated at 97.2% power, 924 MWe.

1156 Commenced ramp to 100% power from 97%, 920 MWe, ,

1236 Unit stable at 100% power, 948 MWe.

' April 11, 1997 1005 Commenced unit ramp down for Turbine Valve l Freedom Test (TVFT) from 100% power, 948 MWe.  ;

1039 Unit stable at 91% power, 875 MWe.

i 1121 TVFT complete satisfactorily.

1127 Commenced ramp to full power after TVFT from  !

91% power, 875 MWe. ,

1147 Stopped ramp at 97.5% power, 933 MWe for resolution on #4 Governor valve stroke.

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NORTH ANNA POWER STATION UNIT No.: 2 i MONTH: April SIM4ARY OF OPERATING EXPERIENCE i

Page 2 of 2 l

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 April 11, 1997 1159 Recommenced ramp to 100% power.

l 1210 Unit stable at 100% power, 942 MWe. 1

. April 30, 1997 2400 Ended month in Mode 1 at 100% power, 947 MWe.

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1 Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet i

Docket No.: 50-339 Report Month April Unit Name: NA-2 Year: 1997 Date: May 5, 1997

Contact:

W. R. Matthews No entries this month.

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UNIT SHUTDOWS AND POWER REDUCTIONS .

DOCKET NO.: 50-339 .

UNIT NAME: NA-2 <

DATE: May 5, 1997 REPORT MONTH: April 1997 CONTACT: W. R. Matthews '*

PHONE: (540).894-2101 l

1 2 3 4 5 No. Date Type Duration Reason Method of . Licensee Sfstem Component Cause & Corrective (hrs) Shutting Event Code Code Action to Down Reactor Report # Prevent Recurrence  ;

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  • N o entries this month.

I 1: Type 2: Reason 3: Method 4 F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions i S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data 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-0161)  ;

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

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

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