ML20214L608

Monthly Operating Repts for June 1986

ML20214L608
Person / Time
Site:	North Anna
Issue date:	06/30/1986
From:	Garner B, Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Scroggins R NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
86-472, NUDOCS 8609100296
Download: ML20214L608 (12)

Text

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NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH June YEAR-1986 APPROVED:

I C f STATION MANAGEIV/

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OPERATING DATA REPORT DOCKET NO. 50-338 DATE 07-01-86 COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527 OPERATING STATUS 1.

Unit Name:

North' Anna 1 2.

Reporting Period:

June, 1986 3.

Licensed Thermal Power (MWt):

2775 4.

Nameplate Rating (Gross MWe):

947 5.

Design Electrical Rating (Net MWe):

907 6.

Maximum Dependable Capacity (Gross MWe):

941 7.

Maximum Dependable Capacity (Net MWe):

893 8.

If Changes Occur in Capacity Ratings (Items 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 Yr.-to-Date Cumulative 11.

Hours In Reporting Period 720 4343 70,331 12.

Number of Hours Reactor Was Critical 712.3 3875.4 49,185.9 13.

Reactor Reserve Shutdown Hours 7.7 467.6 5,373 l

14.

Hours Generator On-Line 691.5 3780.9 47,716.7 15.

Unit Reserve Shutdown Hours 0

0 0

I

'16.

Gross Thermal Energy Generated (MhM) 1,848,923 10,201,416 125,173,964 l

17.

Gross Electrical Energy Generated (MWH) 618,853 3,432,375 40,910,005 18.

Net Electrical Energy Generated (MWH) 587,152 3,259,291 38,674,239 19.

Unit Service Factor 96.0 87.0 67.8 l

20.

Unit Availability Factor 96.0 87.1_

67.8

[

21.

Unit Capacity Factor (Using MDC Net) 91.3 84.0 62.1 c

22.

Unit Capacity Factor (Using DER Net) 89.9 82.7 60.6 23.

Unit Forced Outage Rate 3.9 12.8 12.2 24.

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

i i

1 25.

If Shut Down At End Of Report Period, Estimated Date of Startup:

26.

Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

OPERATING DATA REPORT DOCKET NO.

50-339 DATE 07-01-86 COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527 OPERATING STATUS 1.

Unit Name:

North Anna 2 2.

Reporting' Period:

June, 1986 3.

Licensed Thermal Power (NWt):

2775 4.

Nameplate Ratirig (Gross MWe):

947 5.

Design Electrital Rating (Net MWe):

907 6.

Maximum Dependable Capacity (Gross MWe):

941

'7.

Maximum Dependable Capacity (Net NWe):

893 8.

If Changes occur in Capacity katings (Items No. 3 thru 7) Since Last Report, Give Reasons:

N/A

9.

Power Level To Which Restricted, If Any (Net NWe):

N/A

10. Reasons For Restrictions, If Any:

N/A This Month Yr.-to-Date Cumulative 11.

Hours In Reporting Period 720 4343 48,599 12.

Number of Hours Reactor Was Critical 700.6 3234.7 37,559.5 13.

Reactor Reserve Shutdown Hours 19.4 1108.9 5,289.4

14. Hours Generator On-Line 694.7 3152.2 36,812.2 15.

Unit Reserve Shutdown Hours 0

0 0

16.

Gross Thermal Energy Generated (NWH) 1,870,362 8,059,506 95,204,906 17.

Gross Electrical Energy Generated (HWH) 615,897 2,679,370 31,559.552 18.

Net Electrical Energy Generated (HWH) 584,015 2,538,514 29,921,363 19.

Unit Service Factor 96.5 72.6 75.7 20.

Unit Availability Factor 96.5 72.6 75.7 21.

Unit Capacity Factor (Using MDC Net) 90.8 65.5 69.3 22.

Unit Capacity Factor (Using DER Net) 89.4 64.4 67.9 23.

Unit Forced Outage Rate 3.5 5.3 11.0

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

25.

If Shut Down At End Of Report Period, Estimated Date of Startup:

26.

Units In Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 1

AVERAGE DAILY UNIT POWER LEVEL DOCKET N0.

50-338 UNIT NA-1 DATE 07-01-86 COMPLETED BY Brenda Garner TELEPHONE 703-894-5151X2527 MONTH June, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0

17 890 2

187 18 891 3

394 19 891 4

875 20 891 5

867 21 892 6

879 22 892 7

882 23 886 8

874 24 892 9

873 25 890 10 875 26 892 11 867 27 891 12 892 28 881 13 890 29 881 14 891 30 877 15 891 31 16 891 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.

s UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-338 UNIT NAME North Anna 1 DATE 07-01-86 REPORT MONTH June, 1986 COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527 No.

Date Type Duration Reason Method of Licensee.

System Component Cause & Corrective (Hours)

Shutting

^"

3

• 4

• 5 Down Reactor Report #

Prevent Recurrence 86-06 860601 F

28.5 A

3 LER N1-86-09 EF XFMR Continuation from May 1986, on repairs being made to Vital Bus 1-I.

Repairs completed, Unit on line June 2, 1986 at 0432.

1 2

3 4

F: Forced Reason:

Method:

Exhibit F - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuations (NUREG-0161)

E-Operator Training & License Examination 5-Load Reduction F-Administrative s.

9-Other G-Operational Error (Explain) 5 H-Other (Explain)

Exhibit H - Same Source

Page 1

of 1

UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO.

50-338 REPORT MONTH June UNIT NAME NA-1 YEAR 1986 DATE 07-01-86 COMPLETED BY Brenda Garner 86-06 (1)

Continuation from May 1986. Repairs were completed and the Unit returned to criticality - on June 1,

1986 at 0743, and Unit returned on line at 0432 on June 2, 1986.

I

NORTH ANNA POWER STATION UNIT NO.

1 MONTH JUNE

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 June 1, 1986 0000 Began this month with Unit in Mode 3, due to repairs being made on Vital Bus 1-I.

0743 Reactor critical.

June 2, 1986 0432 Unit on line.

0515 Unit holding at 256 MW - 30% power for Chemistry.

June 3, 1986 1500 Commenced ramp up to 100% power.

2200 Unit stabilized at 925 MW - 100% power.

June 30, 1986 2400 Ended this month with Unit at 930 MW -

100% power.

i

(

4 l

l

)

I s

I

l AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-339 UNIT NA-2 DATE 07-01-86 COMPLETED BY Brenda Carner TELEPHONE 703-894-5151X2527 MONTH June, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 608 17 868 2

870 18 869 3

872 19 870 4

873 20 869 5

872 21 869 6

871 22 868 7

873 23 868 8

881 24 868 9

881 25 867 10 881 26 867 11 875 27 870 12 871 28 878 13 873 29 11 14 869 30 189 15 868 31 16 868 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.

.-.n--

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKE.? NO.

50-339 UNIT NAME North Anna 2 DATE 07-01-86 REPORT MONTH June COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527 l

2 Ns.

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

Shutting Action to 3

• 4

• 5 Down Reactor Report #

Prevent Recurrence 86-06 860629 F

25.3 A

3 LER N2-86-09 FK BU Reactor trip occurred at 100%

power. The trip signal was generated by Lo Level in 'C' steam generator concurrent with a Steam Flow / Feed Flow mis-match. Repairs were completed and Unit returned on line June 30, 1986 at 0136.

I 2

3 4

F: Forced Reason:

Method:

Exhibit F - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Continuations (NUREG-0161)

E-Operator Training & License Examination 5-Load Reduction F-Administrative 9-Other G-Operational Error (Explain) 5 H-Other (Explain)

Exhibit H - Same Source

Page 1

of 1

UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO.

50-339 REPORT MONTH June UNIT NAME NA-2 YEAR 1986 DATE 07-01-86 COMPLETED BY Brenda Garner 86-06 (1)

June 29, 1986 at 0017, Reactor Trip occurred while Unit was at 935 MW - 100% power.

The trip signal as generated by Lo Level in 'C' steam generator concurrent with a Steam Flow / Feed Flow mismatch.

This occurred af ter two Main Feedwater Pumps tripped on low suction pressure.

Repairs were made and on June 30, 1986 at 0136, the Unit returned on line.

t e

NORTH ANNA POWER STATION UNIT NO.

2 MONTH June

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 June 1, 1986 0000 Began this month with Unit at 393 HW - 47%

powcc on Chemistry hold.

0650 Commenced ramp up to 100% power.

1041 Unit holding at 890 MW - 90% power, for 2-PT-24 calorimetric.

1110 Commenced ramp up to 100% power.

2129 Unit stabilized at 925 MW - 100% power, 2-PT-24 calorimetric complete.

June 29, 1986 0017 Reactor trip occurred at 100% power. The trip signal was generated by Lo Level in

'C' steam generator concurrent with a Steam Flow / Feed mismatch.

1941 Reactor critical.

June 30, 1986 0136 Unit on line.

0228 Unit holding at 240 MW - 30% power for chemistry.

2400 Ended this month with Unit holding at 240 MW - 30% power for chemistry.

(.

'0 VINGINIA ELECTHIC AND Pownu COMPANY R icn woxn, Vi no ix A unnot W.L.STEWAERT vara Psaminant Nortsam Orsaations July 15, 1986 Mr. Ronald M. Scroggins, Director Serial No.86-472 Office of Resource Management N0/DJV:acm U.S. Nuclear Regulatory Commission Docket Nos. 50-338 Washington, D.C. 20555 50-339 License Nos. NPF-4

Dear Mr. Scroggins:

NPF-7 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NOS. I AND 2 MONTHLY OPERATING REPORT Enclosed is the Monthly Operating Report for North Anna Power Station Unit Nos. I and 2 for the month of June 1986.

Very truly yours, h

a W. L. Stewart Enclosure (3 copies) cc:

Mr. James M. Taylor, Director (12 copies)

Office of Inspection and Enforcement Dr. J. Nelson Grace (1 copy)

Regional Administrator Region II Mr. J. L. Caldwell NRC Senior Resident Insp$ctor North Anna Power Station

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