ML20133G529
| ML20133G529 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 12/31/1996 |
| From: | Matthews W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 97-016, 97-16, NUDOCS 9701160074 | |
| Download: ML20133G529 (14) | |
Text
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VlltGINIA 13LECTHIC AND POWEli COMPANY HIcnwoxo,VIHOINIA 20261 January 8,1997 United States Nuclear Regulatory Commission Serial No.97-016 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 NORTH ANNA POWER STATION UNIT NOS.1 AND 2 MONTHLY OPERATING REPORT Enclosed is the December 1996 Monthly Operating Report for North Anna Power Station Unit 1 and 2.
Very truly yours,
/v'd W W. R. Matthews Station Manager Enclosure cc:
U. S. Nuclear Regulatory Commission Region 11 101 Marietta Street, N. W.
Suite 2900 Atlanta, Georgia 30323 160023 i
Mr. R. D. McWhorter 7j
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NRC Senior Resident inspector
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North Anna Power Station
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l 9701160074 961231 PDR ADOCK 05000338 R
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VIRGINIA POWER COMPANY l
NORTH ANNA POWER STATION MONTHLY OPERATING REPORT h
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MONTH:. December YEAR: _1995 I
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Approved:
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bM Station Manager 1
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OPERATING DATA REPORT DOCFT.T NO.
50-338 DATE: January 5, 1997 CONTACT:
W. R. Ntthews PHONE:
(540) 894-2101 OPERATING STATUS 1.
Unit Names.
North Anna 1 2.
euporting Periods..
December 1996 3.
Licensed Thermal Power (MHt).
2,893 4.
Nameplate Rating (Gross MHe)..
994 5.
Design Electrical Rating (Net H4el s.
907 6.
Maximum Dependable capacity (Gross MWe).
940 7
Maximum Dependable Capacity (Net IWe).
893 8.
If changes occur to C@acf 'y Ratings (Items 3 thru 71 since last report, give reasons:
N/A 9.
Poser level to which restricted, if any (Net HHe):
N/A 10.
Reasons for restrictions, if anyi N/A This Month Y-t-D Cumulative 11.
Hours in Reporting Period.
144.0 8,784.0 162,420.0 i
12.
Number of Ho.rs Reactor was Critical.
744.0 0,030.8 125,217,2 13.
Reactor Reserve Shutdown Hours.
0.0 94.6 7,046.0 14.
Hours Generator On-Line.
744,0 7,986.3 122,173.8 15.
".at Reserve Shutdown Hours.
0.0 0.0 0.0 i
l 16.
Cross Thermal Energy Generated (MHlO..
2,151,824.5 22,266,199.5 327,580,536.6 17.
Gross Electrical Energy Generated (MHH).
707,125.0 7,312.073.0 144,642,686.0 18.
Net Electrical Energy Generated (MHIO.
673,186.0 6,945,500.0 101,986,654.0 19.
Unit Service Factor..
100.06 90.9%
75.2%
20.
Unit Availability Factor.
100.06 90.9%
75.2%
21.
Unit Capacity Factor (using MDC Net)..
101.34 88.5%
70.3%
22.
Unit Capacity Factor f using DER Net).
99.86 87.26 69.2%
23.
Forced Outage Rate.
0.04 0.9%
0.84 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, Duration of Lach):
N/A 25.
If Shutdown at end of Report Period, estimated time of Startups N/A 26.
Units in Test Status (Prior to Consnercial Operation):
Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COM4ERCIAL OPEPATION
m...
s o
s 4
4
)
i AVERAGE DAILY UNIT POWER LEVEL 4
Docket No.:
50-338 j
Unit:
NA-1 Date:
January 5, 1997
Contact:
W. R. Matthews Phone:
(540) 894-2101 i
1 MONTH: December 1996 i
DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER 1
LEVEL (MWe-Net)
LEVEL (MWe-Net) 1 904 17 904 2
904 18 906 3
904 19 906 4
905 20 905 5
905 21 904 y
6 905 22 905 7
905 23 905 8
905 24 905 9
904 25 905 10 905 26 905 11 904 27 901 12 905 28 906 13 905 14 905 29 906 15 906 30 906 16 905 31 906 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.
3
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NORTH ANNA POWER STATION i
UNIT NO.:
1 HONTH: December i
j SLR44ARY 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.
j Date Time Data December 01, 1996 0000 Began month with unit at 100% power, 954 MWe,
)
December 27, 1996 0924 Commenced ramp down for Turbine Valve Freedom Test (TVFT).
1005 Unit stable at 92% power, 875 MWe.
1040 TVFT complete satisfactorily.
Commenced ramp to'100% power.
1130 Unit stable at 100% power, 950 MWe, December 31, 1996 2400 Ended month with unit stable at 100% power, 951 l
1 MWe.
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Page 1
of 1
UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:
50-338 J
1 Report Month December Unit Name:
NA-1 Year:
1996 Date: January 5, 1997
Contact:
W. R. Matthews
- No entries this month.
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UNIT SHUTDOWS AND POWER REDUCTIONS DOCKET No.:
50-338 UNIT NAME:
NA-1 DATE: January 5,
1997 REPORT MONTH: December 1996 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 thrs)
Shutting Event Code Code Action to Down Reactor Report i Prevent Recurrence
- No entries this month.
1: Type 2: Reason 3: Method 4:
F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licensee 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:
H=Other (explain)
Exhibit H - Same Source A
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l DOCKET NO.
50-339 LATE: January 5, 1991 CONTACT W. R. Matthews PHOhEs (540) 894-2101 OPF. RATING STATUS 1.
Unit Names..
North Anna 2 2.
Reporting Periods.
December 1996 3.
Licensed Thermal Power (MWt)..
2,893 4.
Nameplate Rating Noss MWe).
979 5.
Design Electrical Rating (Net MWe).
907 6.
Maximum Dependable Capacity (Cross MWe).
944 7.
Maximum Dependable Capacity (Net HWe).
897 6.
If changes occur to Capacity Ratings (Items 3 thru 73 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 Y-t*D Cumulative 11.
Hours in Peporting Period...
744.0 0,784.0 140,688.0 12.
Number of Hours Peactor was Critical.
223.7 6,897.6 116,955.2 13.
Reactor Reserve Shutdown Hours.
80.2 627.2 7,162.2 14.
Hours Generator On-Line.
217.7 6,861.1 115,784.2 15.
Uni t Reserve Shutdown Hours......
0.0 0.0 0.0 16.
Cross thermal Energy Generated (Pt4H)..
653,128.4 19,604,679.3 315,581,918.0 17.
Gross Electrical Energy Generated (MWH).
213,952.0 6,437,817.0 103,269,235.0 18.
Het Electrical Energy Generated (HWH).
203,326.0 6,121,543.0 98,693,182.0 19.
Unit Service Factor.
29.34 78.1%
82.36 20.
Unit Availability Factor.
29.3%
78.14 82.3%
21.
Unit Capacity Factor (using MDC Net).
30.5%
77.7%
78.Cl 22.
Unit Capacity Factor (using DER Net).
30.1%
76.8%
77.36 23.
Forced Outage Pate.
70.16 13.54 4.6%
24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, Duration of Each)s N/A 25.
If Shutdown at end of Report Period, estimated time of Startup N/A
)
26.
Units in Test Status (Frier to Comercial Operation):
Forecast Achieved INITI AL CRITICALITY INITIAL ELECTRICITY COF94EHCIAL OFEPATION l
i AVERAGE DAILY UNIT POWER LEVEL Docket No.:
50-339 Unit:
NA-2 Date:
January 5, 1997
Contact:
W. R. Matthews Phone:
(540) 894-2101 MONTH: December 1996 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
LEVEL (MWe-Net) 1 0
17 0
2 0
18 0
3 0
19 0
4 0
20 0
5 0
21 10 6
0 22 387 i
7 0
23 822 8
0 24 905 J
9 0
25 907 10 0
26 906 11 0
27 906 12 0
28 907 13 0
29 908 14 0
30 907
~ 15 0
31 907 16 0
l 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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J NORTH ANNA POWER STATION f
j UNIT NO.:. 2 MONTH: December Sibt4ARY OF OPERATING EXPERIENCE-Page 1 of 3 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
December 01, 1996 0000 Began month in Mode 5 for Main Generator repairs.
i December 15, 1996 0333 Began heatup of RCS.
]
0337 Entered Mode'4.
1400 Found 2-RH-P-1B rotating backwards from discharge check valve not fully closed.
5 1500 Suspended heatup at 300 F.
1753 Began cooldown to Mode 5 for repairs.
2235 Entered Mode 5.
2325 Unit stable at 185 F, 320 psi.
December 19, 1996 0228 Commenced RCS heatup to 340* F.
0235 Entered Mode 4.
December '20, 1996 1710 Secured RHR; continuing to heatup.
l 1800 RCS temperature stable at 340 F.
2244 Commence RCS pressurization.
December 21, 1996 0040 Entered Mode 3.
0910 Shutdown Control Rod banks withdrawn.
1403 Dilution for criticality complete.
1527 Commenced Reactor startup.
1545 Entered Mode 2.
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NORTH ANNA POWER STATION l
UNIT No.:
2 MONTH: December l
SIDNARY OF OPERATING EXPERIENCE l
Page 2 of 3 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 j
December 21, 1996 1618 Reactor critical.
1743 Entered Mode 1.
2224 Unit placed on-line.
2325 Unit stabilized at 30% power, 240 MWe.
December 22, 1996 0133 Entered action for secondary sulfates high on all three Steam Generators.
'I 0921 Cleared chemistry hold.
1030 Commenced ramp to full power.
1123 Stopped ramp at 48% power, 388 MWe for calibration of N43 detector.
1505 Commenced ramp.
1610 Holding ramp at 66% power, 613 MWe foe Main Generator Differential Gas Temperature alarm.
1645 Commenced ramp after investigating alarm.
1719 Holding ramp at 76% power, 735 MWe due to oscillations on #1 Governor valve.
l 2000
- 1 Governor failed closed.
Lost approximately 30 MWe.
2028 Isolated EHC to #1 Governor.
Unit stable at 72% power, 706 MWe.
December 23, 1996 0450
- 1 Governor valve returned to program.
Increased power to 80%, 756 MWe to observe valve operation.
0740 Commenced ramping unit to 100% after observing
- 1 Governor valve.
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NORTH ANNA POWER STATION UNIT No.:
2 MONTH: December SLM4ARY OF OPERATING EXPERIENCE Page 3 of 3 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 December 23,-1996 0825 Reactor stable at 87% power for calorimetric.
i 0839 Recommenced ramp to 96% power.
i 0859 Hold unit ramp at 95% power for adjusting Nuclear Instrumentation.
1114 Recommenced ramp to 100% power.
1214 Unit stable at 100% power, 948 MWe.
December 31, 1996 2400 Ended nionth in Mode 1 at 100% power, 952 MWe.
Page 1
of 1
UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.:
50-339 Report Month December Unit Name:
NA-2 Year:
1996 Date: January 5, 1997
Contact:
W. R. Matthews 96-03 November 12, 1996 0853 hours0.00987 days <br />0.237 hours <br />0.00141 weeks <br />3.245665e-4 months <br /> Automatic reactor trip due to Main Generator Differential Lock Out Relay actuation.
December 15, 1996 0337 hours0.0039 days <br />0.0936 hours <br />5.57209e-4 weeks <br />1.282285e-4 months <br /> Entered Mode 4.
December 15, 1996 1753 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.670165e-4 months <br /> Commenced cooldown to Mode 5 due to "B" RHR pump rotating backwards from discharge check valve not fully closed.
December 19, 1996 0235 hours0.00272 days <br />0.0653 hours <br />3.885582e-4 weeks <br />8.94175e-5 months <br /> Entered Mode 4.
December 21, 1996 0040 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> Entered Mode 3.
December 21, 1996 1545 hours0.0179 days <br />0.429 hours <br />0.00255 weeks <br />5.878725e-4 months <br /> Entered Mode 2.
December 21, 1996 1618 hours0.0187 days <br />0.449 hours <br />0.00268 weeks <br />6.15649e-4 months <br /> Reactor critical.
December 21, 1996 1743 hours0.0202 days <br />0.484 hours <br />0.00288 weeks <br />6.632115e-4 months <br /> Entered Mode 1.
December 21, 1996 2224 hours0.0257 days <br />0.618 hours <br />0.00368 weeks <br />8.46232e-4 months <br /> Unit placed on-line.
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UNIT SHUTDOWS AND POWER REDUCTIONS DOCKET NO.:
50-339 UNIT NAME:
NA-2 DATE: January.5, 1997 REPORT MONTH: December 1996 CONTACT: W. R. Matthews PHONE: (540) 894-2101 h
1 2
3 4
5 f
No.
Date Type Duration Reason Method of Licensee System Component Cause & Corrective (hrs)
Shutting Event Code Code Action to
[
Down Reactor Report #
Prevent Recurrence L
i v
96-3 961112 F
526.35 A
3 2-96-003 TB TG Main Generator "A" Phase r
Fault Caused by Foreign Material Blocking Cooling l
Flow 1: Type 2: Reason 3: Method 4*
F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licensee D= Regulatory Restriction 4= Continuations Event Report (LER) File i
E= Operator Training & License Examination 5= Load Reduction (NUREG-0161) f F= Administrative 9=Other j
G= Operational Error 5.
H=Other (explain)
Exhibit H - Same Source i
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