ML20214K062
| ML20214K062 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 05/31/1986 |
| From: | Garner B, Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Scroggins R NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| 86-385, NUDOCS 8608150308 | |
| Download: ML20214K062 (13) | |
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s VIRGINIA POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH May YEAR 1986 l
APPROVED:
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STATION MANAGER l
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8608150308 860531 PDR ADOCK 05000338 R
PDR L-
OPERATING DATA REPORT DOCKET NO. 50-338 DATE 06-01-86 COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527-OPERATING STATUS 1.
Unit Name:
North Anna 1 2.
Reporting Period:
May, 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 MW'e):
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 744 3623 69,611 12.
Number of Hours Reactor Was Critical.
728 3163.1 48,473.6 13.
Reactor Reserve Shutdown Hours
~16.0 459.9 5,365.3 14.
Hours Generator On-Line 706.4 3089.4 47,025.2 15.
Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 1,926,361 8,352,493 123,325,041
'17.
Gross Electrical Energy Generated (MWH) 648,587 2,813,522 40,291,152 18.
Net Electrical Ennrgy Generated (MWH) 615,971 2,672,139 38,087,087 19.
Unit Service Factor 94.9 85.3 67.6 20.
Unit Availability Factor 94 9 85.3 67.6 21.
Unit Capacity Factor (Using MDC Net) 9Z /
82.6 61.8 22.
Unit Capacity Factor (Using DER Net) 91.3 81.3 60.3 23.
Unit Forced Outage Rate 5.1 15.1 12.4 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:
June 2, 1986 26.
Units In Test Status (Prior to Commercial Operation):
Forecast Achieved l
l INITIAL CRITICALITY l
INITIAL ELECTRICITY l
COMMERCIAL OPERATION
AVERAGE DAILY UNIT POWER LEVEL
. DOCKET NO.
50-338 UNIT NA-1 DATE 06-01-86 COMPLETED BY Brenda Garner TELEPHONE 703-894-5151X2527 MONTH May, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 888 17 890 2
888 18 891 3
882 19 890 4
885 20 376 5
885 21 13 6
887 22 462 7
887 23 892 8
893 24 895 9
891 25 896 10 892 26 895 11 888 27 895 12 886 28 894 13 890 29 889 14 890 30 883 15 891 31 792 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.
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50-338 UNIT NAME North Anna 1 o
DATE 06-02-86 REPORT MONTH MAY, 1986 COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527 I
No.
Date Type Duration Rearan Method of Licensee System Component Cause & Corrective (Hours)
Shutting de 3
- 4 5
Down Reactor Report #
Prevent Recurrence 86-05 860520 F
35.1 A
3 LER N1-86-08 SJ FCV Reactor trip occurred at 100%
power due to "A" steam generator Lo Level in coincidence with a steam flow / feed flow mismatch.
Repairs were made and Unit returned to 100% power.
86-06 860531 F
2.5 A
3 LER N1-86-09 EF XFMR Reactor trip occurred at 100%
power due to' Loss of Vital, Bus 1-I.
Repairs are being made and approximately June 2, 1986, Unit will returned on line.
1 2
3 4
F: Forced Reason:
Method:
Exhibit F - Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparatice 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
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UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO.
50-338 REPORT MONTH MAY UNIT NAME NA-1 YEAR 1986 DATE 06-02-86 COMPLETED BY Brenda Garner 86-05 (1)
May 20, 1986 at 1008, Reactor Trip occurred while Unit was at 100% power.
The trip signal wSs generated from a 935 MW Steam Flow / Feed Flow mismatch concurrent with a Lo Level in the "A"
This occurred as a result of the closure of all three Main Feedwater Regulating Values. Repairs were made and on May 21, 1986 at 2111, the Unit returned on line.
86-06 (2)
May 31, 1986 at 2131, Reactor Trip occurred while Unit was at 940 MW 100% power.
The trip was caused by loss of Vital Bus 1-I, due to loss of Sola transformer, fire in transformer.
Repairs are being made and approximately June 2, 1986, Unit will return on line.
NORTH ANNA POWER STATION UNIT NO.
1 MONTH MAY
SUMMARY
OF OPERATING EXPERIENCE Listed below in chronological sequence is a summary of operating experiences for this month which required load redactions or resulted in significant non-load related incidents.
DATE TIME DATA May 1, 1986 0000 Began this month with Unit at 934 MW -
100% power.
May 20, 1986 1008 Reactor trip occurred at 100% power due to "A" steam generator Lo Level in coincidence with a steam flow / feed flow mismatch.
2341 Reactor critical.
May 21, 1986 2111 Unit on line.
May 22, 1986 0000 Unit holding at 158 MW - 16% power due to EHC control problems.
0055 Commenced ramp up to 30% power.
0425 Unit holding at 250 MW - 30% power for Chemistry.
0850 Commenced ramp up to 100%.
1910 Unit holding at 879 MW - 90% power for calorimetric.
1952 Commenced ramp up to 100% power - calori-metric complete.
2123 Unit holding at 927 MW - 98% power for calorimetric.
2157 Commenced ramp up to 100% power - calori-metric complete.
2225 Unit stabilized at 935 MW - 100% power.
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NORTH ANNA P GER STATION UNIT NO.
1 MONTH MAY
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 May 31, 1986 2131 Reactor trip occurred at 100% power due to Loss of Vital Bus 1-I.
2400 Ended this month with Unit off line due to repal.rs being made on Vital Bus 1-I.
Approximate start up date is June 2, 1986.
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3 OPERATING DATA REPORT DOCKET NO.
50-339 DATE 06-02-86 COMPLETED BY Brenda Garner-TELEPHONE (703) 894-5151 X2527 OPERATING STATUS 1.
Unit Name:
North Anna 2 2.
Reporting Period:
May, 1986 3.
Licensed Thermal Power (MWt):
2775
- 4.. Nameplate Rating (Gross MW'e):
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 (7tems No. 3 thru 7) Since Last Report, Give Reasons: !
l N/A l
l 9.
Power Level To Which Restricted, If Any (Net MWe):
N/A i
- 10. Reasons For Restrictions, If Any:
N/A This Month Yr.-to-Date Cumulative 11.
Hours In Reporting Period 744 3623 47,879 12.
Number of Hours Reactor Wss Critical 733.6 2534.1 36,858.9 13.
Reactor Reserve Shutdown Hours 10.4 1088.9 5,270 14.
Hours Generator On-Line 711.1 2457.5 36,117.5 15.
Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 1,919,812 6,189,144 93,334,544 17.
Gross Electrical Energy Generated (MWH) 643,358 2,063,473 30,943,655 18.
Net Electrical Energy Generated (MWH) 610,607 1,954,499 29,337,348 19.
Unit Service Factor 95.6 67.8 75.4 l
20.
Unit Availability Factor 95.6 67.8 75.4 l
21.
Unit Capacity Factor (Using MDC Net) 91.9 60.4 69.0 22.
Unit Capacity Factor (Using DER Net) 90.5 59.5 67.6 23.
Unit Forced Outage Rate 4.4 5.8 11.1 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
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 l-INITIAL ELECTRICITY COMMERCIAL OPERATION i
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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.
50-339 UNIT NA-2 DATE 06-02-86 COMPLETED BY Brenda Garner TELEPHONE 703-894-5151X2527 i
MONTH MAY, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (liWe-Net)
(MWe-Net) 1 888 17 889 2
889 18 889 3
891 19 888 4
891 20 882 5
890 21 878 6
890 22 876 l
7 889 23 877
-8 888 24 877 t
9 890 25 879 10 891 26 880 j
11 891 27 877 12 889 28 874 i
l 13 889 29 392 i
34 14 890 30 15 890 31 216 i
16 889 INSTRUCTIONS l
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.
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.
50-339 UNIT NAME North Anna 2
'DATE 06-02-86 REPORT MONTH MAY COMPLETED BY Brenda Garner TELEPHONE (703) 894-5151 X2527 I
No.
Date Type Duration Reason Method of Licensee System Component Cause & Corrective (Hours)
Shutting Code Action to 3
- 4 5
Down Reactor Report #
Prevent Recurrence 86-05 860529 F
32.9 H
3 LER N2-86-05 NA NA Reactor trip occurred at 100%
power due to a negative flux rate trip. Repairs were completed and Unit returned on line May 30, 1986 at 1952, 1
2 3
4 F: Forced Reason:
Method:
Exhibit F - Instructions S: Scheduled A-Eqiipment 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
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Page 1
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UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET.
DOCKET NO.
50-339 REPORT MONTH May UNIT NAME NA-2 YEAR 1986 DATE 06-02-86 COMPLETED BY Brenda Garner 86-05 (1)
May 29, 1985 at 1055, Reactor trip occurred while Unit was at 935 MW - 100Y, power.
The negative flux rate trip signal was caused by the opening of the stationary coil power supply disconnect to the rod control power distribution cabinet IAC, which caused 12 rods to drop into the core.
The cause of-the disconnect switch to open was inadvertent physical agitation from personnel painting above the rod control cabinets while standing on the rod control cabinets.
May 30, 1986 at 1952, Unit returned on line and repairs were completed.
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a NORTH ANNA POWER STATION UNIT NO.
2 MONTH MAY
SUMMARY
OF OPERATING EXPERIENCE Listed below in chronological sequence is a summary of operating experiences for this month which required load refactions or resulted in significant non-load related incidents.
DATE TIME DATA May 1, 1986 0000 Began this month with Unit at 940 MW - 100%
power May 29, 1986 1055 Reactor trip occurred at 100% power due to a negative flux rate trip.
2121 Reactor critical.
May 30, 1986 1952 Unit on line.
2020 Unit holding at 250 MW - 30% power for chemistry.
May 31, 1986 0650 Commenced ramp up to 100% power.
2400 Ended this month with Unit at 393 MW - 47%
power.
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VINGINIA ELECTRIC AND Powsu COMI*ANY RIcnnown,VIHOINIA 232G1
- w. L. STEWART
.I Vnen Pensionar we ca.=4. o,= =ma""
June 13, 1986 Mr. Ronald M. Scroggins, Director Serial No.86-385 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 NPF-7
Dear Mr. Scroggins:
VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NOS. 1 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 May, 1986.
Very truly yours,
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L. W. L. Stewart q
Enclosure (3 copies) cc:
Mr. James M. Taylor, Director (12 copies)
Office of Inspection and Enforcement Dr. J. Nelson Grace (l' copy)
Regional Administrator Region II NRC Senior Resident Inspector North Anna Power Station v
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