ML20148B377

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)

Text

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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

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Enclosure

/Y cc:

U. S. Nuclear Regulatory Commission s-Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 NRC Senior Resident inspector North Anna Power Station 9705130068 970430 DR ADOCK 0500 8

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

1997 Approved:

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$12N Station Manager

j CPERATING DATA REP RT 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 4.

Nameplate Rating (Gross MWe).

994 5.

Design Electrical Rating l Net Fbb).

907 6.

Maximum Dependable capacity (Gross HWel s.

940 7.

Maximum Dependable Capacity (Net MWe) s..

893 8.

If changes occur to Capacity Ratings (Iteps 3 thru 7) since last report, give reasonst N/A 9.

Power level to which restricted, if any (Net Fbk):

N/A 10.

Reasons f or restrictions, if anyt N/A 1

1 This Month Y-t-D Cumulative 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 15.

Unit Reserve Shutdown Hours.

0.0 0.0 0.0 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 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.

er.

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

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 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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Page 1

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i UNIT SHUTDOWN AND POWER REDUCTIONS i

i Explanation Sheet 4

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4 Docket No.:

50-338 i

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Report Month April Unit Name:

NA-1 Year: -1997 Date: May 5, 1997 i

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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 j

REPORT MONTH: April 1997 CONTACT: W.

R. Matthews PHONE: (540) 894-2101 l

1 2

3 4

5 i

No.

Date Type Duration Reason Method of Licensee System Component Cause & Corrective f

f (hrs)

Shutting Event Code Code Action to Down Reactor Report i Prevent Recurrence r

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f

• No entries this month.

P f

't a

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

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

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 i

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i CPERATING DATA REPORT s

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 i

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

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Hours in Reporting Period..

120.0 2,880.0 143,568.0 12.

Number of Hours Reactor was Critical.

720.0 2,880.0 119,835.2 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 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.

Forced Outage Rate..

0.06 0.0%

5.3%

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 9

904 25 903 10 904 26 903 11 899 27 903 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-

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

~ 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 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.:

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MONTH: April SIM4ARY OF OPERATING EXPERIENCE i

Page 2 of 2 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.

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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UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet 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 I

t I

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

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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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