ML20244D983
| ML20244D983 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 05/31/1989 |
| From: | Stewart W, Tillack B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 89-425, NUDOCS 8906200091 | |
| Download: ML20244D983 (14) | |
Text
._ _
. s-VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 June 14, 1989 U. S. Nuclear Regulatory Commission Serial No.89-425 Attention: Document Control Desk NO/JMJ:jmj Washington, D.C. 20555 Docket Nos.
50-338 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 May 1989.
Very truly yours, W. - tewart Senior Vice President - Power Enclosures cc:
U.S. Nuclear Regulatory Commission 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. J. L. Caldwell NRC Senior Resident inspector North Anna Power Station e
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VIRGINIA POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT MONTH MAY YEAR 1989 APPROVED:
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OPERATING DATA REPORT DOCKET NO.
50-338 DATE 06-01-89 COMPLETED BY Bob Tillack TELEPHONE (703) 894-5151 X2632 OPERATING STATUS 1.
Unit Name:
North Anna 1
.2.
Reporting Period:
May 1989 3.
Licensed Thermal Power (MWt):
2893 4.
Nameplate Rating (Gross MWe):
947 5.
Design Electrical Rating (Net MWe):
907 6.
Maximum Dependable Capacity (Gross MWe):
963 7.
Maximum Dependable Capacity (Net MWe):
915 8.
If Changes Occur in Capacity Ratings (Items No. 3 thru 7) Since Last Report, Give Reasons:
N/A 9.
Power Level To Rhich 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 3,623 95,915 12.
Number of Hours Reactor Was Critical 0
1,334.1 67,553.5 13.
Reactor Reserve Shutdown Hours 0
39 6,496.3 14.
Hours Generator On-Line 0
1,334.1 64,848.6 15.
Unit Reserve Shutdown Hours 0
0 0
16.
Gross Tiermal Energy Generated (MWH) 0 3,454,653 171,614,646 17.
Gross Electrical Energy Generated (MWH) 0 1,144,658 56,319,007
~18.
Net Electrical Energy Generated (MWH) 0 1,084,413 53,276,305 19.
Unit Service Factor 0
36.8 67.6 20.
Unit Availability Factor 0
36.8 67.6 21.
Unit Capacity Factor (Using MDC Net) 0 32.7 62.3 22.
Unit Capacity Factor (Using DER Net) 0 33.0 61.2 23.
Unit Forced Outage Rate 0
10.3 14.5 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:
15 July 1989 26.
Units In Test Status (Prior to Commercial Operation):
Forecast Achieved
' INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION
- /
AVERACE DAILY UNIT POWER LEVEL DOCKET No. 50-338 UNIT NA-1 DATE 06-01-89 COMPLETED BY Bob Tillack TELEPHONE 703-894-5151X2632 MONTH MAY 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 0
17 0
2 0
18 0
3 0
19 0
4 0
20 0
5 0
21 0
6 0
22 0
7 0
23 0
8 0
24 0
9 0
25 0
10 0
26 0
11 0
27 0
12 0
28 0
13 0
29 0
14 0
30 0
15 0
31 0
16 0
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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UNIT SHUTDOWN AND POWER REDUCTIONS EXPLANATION SHEET DOCKET NO.
50-338 REPORT MONTH MAY-UNIT NAME NA-1 YEAR 1989
'DATE 06-01 COMPLETED BY Bob Tillack
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' UNIT NO.
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MONTH MAY
SUMMARY
OF OPERATING EXPERIENCE I*
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 ir-idents.
DATE TIME DATA May.1, 1989 0000 Began Month with Unit Shutdown in Mode 6.
May 31, 1989 2400
. Ended month with Unit shutdown in Mode 6.
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r OPERATING DATA REPORT DOCKET NO.
50-339 DATE 06-01-89 COMPLETED BY Bob T111ack TELEPHONE (703) 894-5151 X2632 OPERATING STATUS 1.
Unit Name:
North Anna 2 2.
Reporting Period:
May 1989 3.
Licensed Thermal Power (MWt):
2893 4.
Nameplate Rating (Gross MWe):
947 5.
Design Electrical Rating (Net MWe):
907 6.
Maximum Dependable Capacity (Gross MWe):
963 7.
Maximum Dependable Capacity (Net MWe):
915 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 3,623 74,183 12.
Number of Hours Reactor Was Critical 577.4,
1,781.9 58,985.1 13.
Reactor Reserve Shutdown Hours 79.;
152.8 5,854.9 14.
Hours Generator On-Line 547.3 1,750.7 58,114.9
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15.
Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 1,379,441.7
~ 3,948,443.7 153,289,442.7 17.
Gross Electrical Energy Generated (MWH) 452,455 1,304,125 50,095,754
- 18. Net Electrical Energy Generated (MWH) 427,960 1,227,768 48,170,091
- 19. Unit Service Factot 73.6 48.3 78.3 20.
Unit Availability Factor 73.6,
48.3 78.3 21.
Unit Capacity Factor (Using MDC Net)
- 62. E__
37.0 72.4 22.
Unit Capacity Factor (Using DER Net) 63 4_
37.4 71.6 23.
Unit Forced Outage Rate 0
0 7.7 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, und 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
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.
50-339 UNIT NA-2 DATE. 06-01-89 COMPLETED BY Bob Tillack TELEPHONE 703-894-5151X2632 MONTH MAY 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 0
17 906 2
0 18 903 3
0 19 909 4
0 20 915 5
0 21 915 6
0 22 916 7
0 23 916 8
0 24 914 9
159 25 915 10 192 26 907 11 227 27 915 12 503 28 916 13 736 29 916 14 741 30 916 15 743 31 914 16 838 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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i-i UNIT SHUTDOWN AND POWER REDUCTIONS
.j EXPLANATION SHEET DOCKET NO.
50-339 REPORT MONTH MAY UNIT NAME NA-2 YEAR 1989 DATE 06-01-89 l
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NORTH ANNA POWER STATION UNIT NO.
2 MONTH MAY m
S199tARY 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, 1989 0000 Began month with Unit Shutdown in Mode 5.
May 4, 1989 1152.
Entered Mode 4.
May 6. 1989 0704 Entered Mode 3.
1700 Commenced Rx startup.
May;7 '1989' 1935 Entered Mode 2.
~2234 Rx critical.
May'9,:1989 0315 Entered Mode 1.
0441 Unit on line commencing ramp to 30%, 274 MW.'
0540 Unit at 30%, 274 MW power holding for secondary chemistry.
May 11, 1989 1600 Cleared chemistry hold commencing power increase.
2031 11olding power at 44.5% to start 2-FW-P-1B and open Powdex bypass. Second motor in B feedpump will not start, investigating.
2306 Engineering Department commencing incore flux maps to verify Quadrant Power Tilt Ratio.
May 12, 1989 0155 Commencing ramp to 49%, 448 MW power.
0515 Unit stable at 49.5% power, 452 MW.
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0520 Unit cleared to 90% (hot channel factors) commenced ramp-up.
0930 Chemistry out of specification on B and C S/G's holding power at 59%, 540 MW.
1215 Cleared chemistry hold, commenced ramp-up.
1545 Feedwater chemistry out of specification holding power at 70%, 640 MW.
1630 High vibrations on No. I an No.2 bearings on main turbine. Ramped down to 68.5%, 627 MW in order to fully shut NO. 1 GV and stabilize vibration.
1855 Cleared chemistry hold commence ramp-up.
1935 Chemistry hold at 72.3%, 661 MW S/G cations high out of specification.
1956 Ramped down to 67.5%, 617 FN to stabilize turbine vibrations by fully shuting No. 1 governor valve while holding for chemistry.
2041 Commence ramp-up to 90%, 823 MW.
May 13, 1989 0138 Excessive turbine vibration, secured ramp at 83% power, 759 MW, investigating.
1551 Commenced ramp to 90%, 823 MW.
1630 Secured ramp due to excessive turbine vibration 84% power, 768 MW.
May 15, 1989 1650 Commenced ramp-down to shut No. 1 governor valve.
1809 Seeured ramp at 68% power, 622MW No. 1 govcenor valve shut.
1837 Commonced ramp-up.
2143 Rx stable at 90% power, 823 MW holding for flux maps.
May 16, 1989 1130 Flux map sat.
1429 Commenced ramp-up to 100% power 915 MW.
1955 Rx stable at 100% power, 915 MW.
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- 6 May 17, 1989 1550 Experienced turbine runback of '1.5% power due to A and B loop AT fluctuations caused by A S/G FRV oscillations.
Instrument Department investigating.
May 18, 1989 0620 Instrument Department completed investigation and troubleshooting, ramped unit to 100% power, 915 MW.
May 31, 1989 2400 Ended month with Unit at 100% power, 915 MW.
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