ML20134K581

Monthly Operating Repts for Oct 1996 for North Anna Power Station Unit 1 & 2

ML20134K581
Person / Time
Site:	North Anna
Issue date:	10/31/1996
From:	Matthews W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
96-582, NUDOCS 9611190227
Download: ML20134K581 (15)

Text

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VIHOINIA 13LECTRIC AND PowcH COMPANY Ricnwoxn, VIRGINIA 20261 November 13,1996 United States Nuclear Regulatory Commission Serial No.96-582 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 i Enclosed is the October 1996 Monthly Operating Report for North Anna Power Station Unit 1 and 2.

Very truly yours, D (& // k m $

W. R. Matthews ,

Station Manager Enclosure cc: U. S. Nuclear Regulatory Commission Region ll 3

101 Marietta Street, N. W.

Suite 2900 Atlanta, Georgia 30323 gQL/ '

Mr. R. D. McWhorter NRC Senior Resident Inspector North Anna Power Station

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9611190227 961031 i PDR ADOCK 05000338 R PDR

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VIRGINIA POWER COMPANY NORTH ANNA POWER STATION MONTHLY OPERATING REPORT 1

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MONTH: October YEAR: 1996 s

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Approved:  !

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Station Manager

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, CPERATIN3 DATA KEP:RT

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DOCKET No.: 50-338

. DATE: Noventier 5,1996 CONTACT: W. R. Matthews PHONE: (540) 894-2101 OPERATING STATUS

1. Unit Names............. ........ . .. .. North Anna 1

2. Reporting Periodt......... . .... . . October 1996

3. Licensed Thermal Power (MWt) s . . . . . . . . . . 2,893

4. Nameplate Rating (Gross MWe) s . . . . . . . . . . . . . 994

5. Design F.loctrical Rating (Net MWe} s . .. .. 907

6. Maximum Dependable Capacit'f (Gross MWe)s.... 940

7. Maximum Dependable capacity (Net MWe)t.. . .. 893

8. If changes occur to Capacity Ratings (Items 3 thru 7) since last report, give reasons: N/A

9. Power level to which restricted, if any (Not MWe); N/A

10. Reasons for restrictions, if anyt N/A This Month Y- t- D Cumulative

11. Hours in Reporting Period.. .... .... .. .. . . 145.0 7,320.0 160,956.0

12. Number of Hours Reactor was Critical. . . . 124.4 6.566.8 123,753.2

13. Reactor Reserve Shutdown Hours.. , , . .. ... .. . . 20.2 94.6 7,046.0

14. Hours Generator On-Line. . ... . . . . ..... . .. . . .. .. 116.3 6,522.3 120,709.8 3 15. Unit Reserve Shutdown Hours.. . . .. ., . 0.0 0.0 0.0

16. Gross '17termal Energy Generated (Met) . . . . . .. . . 2,045,761.6 18,032,368.1 323,346,105.2

17. Gross Electrical Energy Generated (MWR) . .. . .... 671,974.0 5,919,802.0 143,250,415.0

18. Net Electrical Energy Generated (MHi) .. ... . . . 638,808.0 5,620,608.0 100,661,762.0

19. Unit service Factor.. .. . . . . . . ... . 96.14 89.1% 75.04

20. Unit Availability Factor.... .... .... . . .. . 96.1% 89.16 75.04

21. Unit Capacity Factor (using MDC Net).. . .. ... .. 96.04 86.04 70.06

22. Unit capacity Factor (using DER Net) ... . . .., .. .. . . 94.5% 84.1% 69.06

23. Forced Outage Rate... .... . . . . . ...., . , . . ... 3.96 1.14 8.9%

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

25. If Shutdown at end of Report Period, estimated time of Startups N/A

26. Unxts in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COF94ERCIAL OPERATION

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AVERAGE DAILY UNIT POWER LEVEL I 4

Docket No.: 50-338 Unit: NA-1 Date: November 5, 1996 l

Contact:

W. R. Matthews  ;

Phone: (540) 894-2101 l 4

f MONTH: October 1996 I

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER 3 LEVEL (MWe-Net) LEVEL (MWe-Net) 4' 1- 905 17 903 j 2 905 18 903 l 3 903 19 904

4 902 20 905 j 5 903 21 905 3 6 904 22 907 7 905 23 907 j 8 906 24 126

9 906 25 205 10 905 26 902 11 905 27 909 12 906 28- 908 l

. 13 906 29 907  ;

14 904 30 907 15 905 31 907 16 904

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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.: _1 1 MONTH: October

SUMMARY

OF OPERATING EXPERIENCE '

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Page 1 of 2 Listed below in chronological sequence is a summary of operating l experiences for this month which required load reductions or resulted in i significant non-load related incidents.

{ Date Time Data 4

l October 01, 1996 0000 Began month with unit at 100% power,-951 MWe.

October 104, 1996 1026 Commenced ramp down from 100% power, 950 MWe 3

for Turbine Valve Freedom Test-(TVFT) 1109 Unit stable at 92% power, 880 MWe.  ;

i October 24,.1996 0319 Unit trip due to Main Generator negative phase

sequence relay actuation. 1 1 I i 1832 Completed pulling shutdown control rod banks ,

for startup. I i 2331 Entered Mode 2.

2353 Reactor critical.

October 25, 1996 0005 Unit at point of adding heat (POAH).

0038 Entered Mode 1.

j 0803 Unit placed on line and began ramp to 30%

. power.

l 0933 Unit stable at 30% power for Secondary Chemistry hold on sulfates.

1645 Cleared chemistry hold. Commenced ramp at l 0.3% power minute, d

1751 Stabilized power at.45%, 415 MWe for "A" Main i Feedwater pump oil shield rubbing.

1 2103 Commenced ramp from.47% power, 422 MWe after j swapping to "B" Main Feedwater pump.

j . October 26, 1996 0029 Stopped ramp at 90% power, 857 MWe for l calorimetric.

4 0040 Commenced ramp to 100% power.

0203 Unit stable at 100% power, 954 MWe.

NORTH ANNA POWER STATION UNIT NO.: J MONTH: October SUt44ARY OF OPERATING EXPERIENCE 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. )

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Date Time- Data October 31, 1996 2400 Ended month with unit stable at 100% power, 952 MWe.

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UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: ~50-338 l l

Report Month October Unit Name: NA-1 Year: 1996 Date: November 5, 1996 i

Contact:

W. R. Matthews )

96-03 October 24, 1996 Automatic reactor. trip due to Main Generator negative phase sequence relay actuation. -

l Corrective maintenance complete and unit entered Mode 2 i at 2331 hours0.027 days <br />0.648 hours <br />0.00385 weeks <br />8.869455e-4 months <br />. i October 25, 1996 Unit entered Mode 1 at 0038 hours4.398148e-4 days <br />0.0106 hours <br />6.283069e-5 weeks <br />1.4459e-5 months <br /> and placed on line at l 0803 hours0.00929 days <br />0.223 hours <br />0.00133 weeks <br />3.055415e-4 months <br />, i October 26, 1996  !

Unit stable at 100% power, 954 MWe. 1 i

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UNIT SHUTDOWS AND POWER REDUCTIONS

• DOCKET NO.: 50-338 UNIT NAME: NA-1 DATE:-November 5, 1996 -

REPORT MONTH: October 1996 CONTACT: W. R. Matthews PHONE: (540) 894-2101 i

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1 2 3 4 5 No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective ,

-(hrs) Shutting Event Code Code Action to ,

Down Reactor Report i Prevent Recurrence ,

f 96-0 961024 F 28.7 A 3 1-96-010 EL 46 Reactor trip due to main  ;

generator' negative phase  !

sequence relay actuation. [

I Relay was tested and replaced. '

t 1: Type 2: Reason. 3: Method 4: ,

F= Forced A= Equipment Failure (explain) l= Manual Exhibit F - Instructions j S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licensee j D= Regulatory Restriction 4= Continuations. Event Report (LER) File f E= Operator Training & License Examination 5= Load Reduction (NUREG-0161) j F= Administrative 9=Other -

G= Operational Error 5:

H=Other (explain) Exhibit H - Same Source ,

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CPERATIN3 DATA R" PORT DOCKET NO.t 50-339 DATE Noven4>er 5,1996 CONTACT: W. R. Matthews PHONE: (540) 894-2101 OPERATING STATUS

1. Unit Names............. ......., ...... .. North Anna 2

2. Reporting Periodt................. . . . . . October 1996

3. Licensed Thermal Power (MWtil... ... .... 2,893

4. Nameplate Rating (Grose >5dels.............. 979

5. Design 8,lectrical Rating (Not NHe)s... ....... 907

6. Masimum Dependable capacity (Gross MWels..... 944

7. Maximum Dependable Capacity (Net MWe) e . . . . . 897

8. If changes occur to Capacity Ratings (1tems 3 thru 7) since last report, give seasons: N/A

9. Power level to which restricted, if any (Not MWe): N/A

10. Reasons for restrictions, if anya N/A 4

This Month Ya t- D Cumulative

11. Hours in Peporting Period.. ... ... ... . .. 145.0 7,320.0 139,224.0

12. Number of Hours Reactor was Critical. . ... .. .. . 376.2 6,401.0 116,458.6

13. Reactor Reserve Shutdown Hours.. .. . .... . .. 117.9 135.4 6,670.4

14. Hours Generator On-Line. .. . . .. . .. . . 346.7 6,370.5 115,293.6

15. Unit Reserve Shutdown Hours. . .. .. 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MHH). ..... . 881,968.7 18,161,971.9 314,139,210.6

17. Gross Electrical Energy Generated (Mbat) . .. . . .. 288,086.0 5,964,209.0 102,795,627.0

18. Net Electrical Energy Generated (MWH) .. ... .. . 272,465.0 5,671,304.0 98,242,943.0

19. Unit service Factor.... ... . .. . . . .. .. . . 46.54 87.04 82.84

20. Unit Availability Factor. .. . . .. .. . .... . . . . 46.54 87.04 82.86

21. Unit Capacity Factor (using MDC Net) .. , .. . . . ....... . 40.8% 86.44 78.5%

22. Unit Capecity Factor (using DLR Net). . . .. .. .. . 40.3% 85.44 77.84

23. Forced outage Rate. .. ... .. . .. . ... . 21.74 1.5% 4.6%

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, Duration of Eachi s

25. If Shutdown at end of Report Period, estimated tithe of Startup:

26. Units in Test Status (Prior to Corranercial Operation):

Forecast Achieved INITIAL CPITICALITY INITIAL ELECT *.ICITY COF94EPCI AL CPERATION 1

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AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-339 Unit: NA-2 j Date: November 5, 1996 I

Contact:

W. R. Matthews Phone: (540) 894-2101 l

l MONTH: October 1996 )

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 0 17 904 2 0 18 904 3 0 19 904 4 0 20 904 5 0 21 583 6 0 22 0 7 0 23 0 l 8 0 24 0 i 9 0 25 38 10 0 26 550 11 0 27 907 12 0 28 907 13 86 29 907 14 376 30 907 15 657 31 996 16 875 l -- 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.

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NORTH ANNA POWER STATION UNIT.NO.: 2 MONTH: October SUt44ARY 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. {

I Date Time Data October 01, 1996 0000 Began month in Mode 5 for scheduled refueling outage.

October 03, 1996 1825 Established steam bubble in pressurizer.

October 06, 1996 0316 Commenced heatup to Mode 4. .

l 0345 Entered Mode 4.

0951 Entered Mode 3.

1553 Received "C" Reactor Coolant Pump seal leakage alarm at 1660 psi and 470 degrees. Suspended heatup and pressurization.

1716 Commenced cooldown to Mode 5 to repair "C" Reactor Coolant Pump. )

l 2035 Entered Mode 4. -

October 7, 1996 0056 Entered Mode 5.

4 October 11, 1996 1230 Commenced Reactor Coolant System heatup.

1249 Entered Mode 4.

1755 Entered Mode 3.

October 12, 1996 0322 Unit stable at 547 F.

0656 Completed withdrawal of shutdown control rod banks.

1445 Entered Mode 2.

1524 Reactor critical.

I l October 13, 1996 0654 Reactor physics testing complete.

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NORTH ANNA POWER STATION UNIT NO.: 2 MONTH: October SUM 4ARY OF OPERATING EXPERIENCE Page 2 of 3 Listed below in chronological sequence is a summary of operating experiences for this month which required load reductions or reculted in significant non-load related incidents.

Date Time Data October 13, 1996 0905 Entered Mode 1.

1313 Unit placed on-line. Refueling Outage l duration of 35 days, 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and 24 minutes.

1445 Unit stable at 30% power, 248 MWe for i secondary chemistry and testing. ,

October 14, 1996 0741 Cleared chemistry hold and commenced ramp.

October 16, 1996 0928 Unit stable at 100% power, 951 MWe.

October 21, 1996 1314 Commenced unit ramp from 100% power, 950 MWe at 0.3% power per~ minute due to steam leak on High Pressure Turbine bal'ance line.

1805 Unit off-line.

1913 Entered Mode 2.

1923 Entered Mode 3.

October 25, 1996 1055 Commenced Reactor startup.

1103 Entered Mode 2.

1135 Reactor critical.

1315 Entered Mode 1.

1812 Unit placed on line.

1938 Commenced ramp to 30% power.

2000 Secured ramp at 30% power, 216 MWe for calorimetric and Secondary Chemistry hold on sulfates.

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NORTH ANNA POWER STATION UNIT NO.: 2 MONTH: October 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 October 26, 1996 0545 Commenced ramp from 30% power, 245 MWe after clearing chemistry hold.

0950 Holding ramp at 70% power, 643 MWe for calorimetric.

1002 Recommenced ramp after calorimetric.

1045 Holding ramp at 79% power, 756 MWe until "A" Main Condenser waterbox is returned to service.

'2009 Recommenced ramp from 79% power.

2046 Holding power at 90%, 860 MWe for calorimetric.

2130 Recommenced ramp after calorimetric.

2218 Holding power at 98.7%, 936 MWe for instrumentation adjustments.

2253 Recommenced ramp.

2312 Unit stable at 100% power, 944 MWe.

October 31, 1996 2400 Ended month at 100% power, 951 MWe.

O' Page 1 of 1 1

I UNIT SHUTDOWN AND POWER REDUCTIONS

! Explanation Sheet  !

Docket No.: 50-339 Report Month October Unit Name: NA-2 Year: 1996 Date: November 5, 1996

Contact:

W. R. Matthews 96-01 September 8, 1996 ,

j Unit manually taken off-line at 0049 hours5.671296e-4 days <br />0.0136 hours <br />8.101852e-5 weeks <br />1.86445e-5 months <br /> and shutdown for normally scheduled refueling outage.

October 12, 1996 Outage activities complete. Unit entered Mode 2 at 1445 hours0.0167 days <br />0.401 hours <br />0.00239 weeks <br />5.498225e-4 months <br />.

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{' October 13, 1996 Unit entered Mode 1 at 0905 hours0.0105 days <br />0.251 hours <br />0.0015 weeks <br />3.443525e-4 months <br />. Unit placed on line at 1313 hours0.0152 days <br />0.365 hours <br />0.00217 weeks <br />4.995965e-4 months <br />.

October 16, 1996 j Unit stable at 100% power, 951 MWe.

l ' 96-02 October 21, 1996 4 Unit manually ramped from 100% power to hot' standby due i to steam leak on High Pressure Turbine balance line.

J l October 25, 1996 4 Corrective maintenance complete. Unit entered Mode 2 at 1103 hours0.0128 days <br />0.306 hours <br />0.00182 weeks <br />4.196915e-4 months <br />, Mode 1 at 1315 hours0.0152 days <br />0.365 hours <br />0.00217 weeks <br />5.003575e-4 months <br /> and placed on line at 1812 hours0.021 days <br />0.503 hours <br />0.003 weeks <br />6.89466e-4 months <br />.

October 26, 1996 Unit stable at 100% power, 944 MWe.

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i UNIT SHUTDOWS AND POWER REDUCTION 3 DOCKET NO.: 50-339 UNIT NAME: NA-2 ,

DATE: November 5, 1996 REPORT MONTH: October 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 (hrs) Shutting Event Code Code Action to Down Reactor Report i Prevent Recurrence 96-0 960908 S 301.22 C 1 N/A N/A N/A N/A 96-0 961021 F 96.1 A 1 N/A N/A N/A Steam leak on High Pressure Turbine balance line.

1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1= 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 Even; 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 m - . - _ - _ _ - _ _ - - - - _ _ _ _ - _ _ _ - - - - _ _ ._ _ _ _ _ - .

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