ML20210K550

Monthly Operating Repts for Jul 1997 for North Anna Power Station,Units 1 & 2

ML20210K550
Person / Time
Site:	North Anna
Issue date:	07/31/1997
From:	Matthews W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20210K546	List: ML20210K541 ML20210K550 ML20210K558
References
NUDOCS 9708190298
Download: ML20210K550 (13)

Text

_ _ . . .

l . .

i  !

l

., .. 1 4

I

! l i

[

t I i l j k

VIRGINIA POWER COMPANY  !

l NORTH ANNA POWER STATION (

l HONTHLY OPERATING REPORT .

i MONTH: July YEAR: 1997 i

a t Approved: i 1.

l h

gy Station _ Manager 9708190298 970811 PDR ADOCK 05000338 R PDR

, e

, OPERATINS DATA REPORT titGI'T N3, s 50 336 12ATEi AJgust $. 1997 COFI ACT: N. R. Matthews THONE: ($40) 494-3101 Ol'EkATIN3 STATtfS

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

3. Repos-ting periode. . . . . . . July 1991

3. Licensed Thors.at Iwwer (MWtis. . . . . 3,09)

4. Nameg' late Rating (0 oss MWeli . ... . 994

6. tesign tiectrical Rating (Not MWel e. .. . 907

6. Maximum teg endatile Capacity (Gross MWe) 3. . 640

7. Maalmum 1+pendable Cag acity (Not MWel s . . . . 093 l

8. It changes occur to Capacity katings (1tems 3 thru 7) since last repott, give teasons N/A l

9. Power level to which testricted, if any (Not MWeli N/A

10. teasons for restrictions, if any: N/A This Month Y+t D Cumulative

11. Houts in Reporting i+eriod., . . ... . . . 744.0 9,007.0 167,607.0

13. Number of Hours konctor was Critical.. . . . . 144,0 4,364.4 129,683.0

13. Reactor koserve Shutdown Hours.. . . . ,. . . . 0.0 49.0 7,095.0

14. Hours Generator On.Line. ....... . . .. . . . . 744.0 4,320.6 126,494.4

15. tinit Reserve Shutdown llours. . . . ... .. .. .. . . 0.0 0.0 0.0

16. Gross Thermal Enespy Oenerate$ (MNHl. . .. . . . . . . 3,105,011.9 13,336.62).9 339,917,160.6 17 Grosa Elect rical triorgy Generated (MWH) . . . . . . . 691,960.0 4.046,309.0 146,60s,996.0 It. Het Electrical Energy Generated (MWH).... 4. .. . .. . 666,401.0 3.647,191.0 105.03),84%.0

19. Unit Service Factor. . .. . . ... . . . . ... 100.0% 84.9% 75.6%

30. Unit Availability Factor, . . . .. . . .... 100.0% 44.9% 75.5%

31. Ifnit Capacity Factor (using MDC Net) . . . . . . . . 98.86 84.7% 70.74

33. Unit Capacity Factor (using DER Not) . . .. . 97.3% 63.4% $9.7%

33. Forced Outage Rate.. . .. . . . . . . 0.0% 0.0% 0.6%

34. Shutdowns Scheduled Over Next 6 Months (Type, !> ate, Duration ._ N/A 25, 11 Shutdown at end of Report Feriod, estimated time of Startu N/A

24. tinits in Test Status (Frior to Commercial Ope ation):

Forecast Achieved INITIAt. CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION J

4 i

AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-338 Unit NA-1 l Dates Aucust 5. 1997 j _

Contact:

W. R. Matthews Phone _(540) 894-2101 NONTH: July 1997 DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (NWe-Net) LEVEL (NWe-Net) 1 879 17 900-2 882 18 898 3 883 19 847 4 884 20 786 5 883 21- 815 6 883 22 895 7 883 23 898 8 883 24 901 9 _ 882 25 900 10 882 26- 899 ,,,.

11 792 27 898 12 902 28- 898 13 902 29 898 14 901 30 898 15 900 31 898 16 -- 900 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.

, NORTH ANNA PONER STATION 4

j UNIT NO. 1

., . . NONTH: July

SUMMARY

OF OPERATING EEPERIENCE l

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 cignificant non-load related incidents.

Date Time Data l

l July 01, 1997 0000 Began month in Mode 1 at 97% power, 923 Mwe.

July 01, 1997 1310 Commence throttling Moisture Separator Re-heater steam supply valves for data collection, power at 96.5%, 921 Mwe.

1355 Secured MSR throttling, unit stable at 96%

power, 915 MWe.

1510 Commence ramp up to 100% power after MSR data collection.

1558 Suspended ramp at 98% power, 930 Mwe for Nuclear Instrument (NI) calibration.

-1602 Commenced- ramp up to -100% power after NI.

calibration.

1645 Unit stable at 100% power, 950 Mwe.

1808 Commenced ramping down to 97% power due to governor valve vibration.

1830 Unit stable at 97.5% power, 930 Mwe.

July 11, 1997 0310- Commence ramp down to 62% power for governor valve control maintenance.

0541 Stopped ramp at 54% power, 592 Mwe.

0936 Commence ramp up to 850 Mwe for Turbine Valve Freedom Test (TVFT).

1220 Commence TVFT.

NORTH ANNA PONER STATION UNIT NO. ._1 MONTH: Julv 4 4 BUMMARY OF OPERATING EXPERIENCE Page 2 of 3 l 1300 Completed TVFT, ramping to 97.5% power for NI calibration.

1402 Unit at 97% power for NI calibration.

1542 Commence ramp up to 100% power, 1650 Unit at 100% power, 947 Mwe.

July 18, 1997 0815 Load increase to 101.6% power, 953 MWe, due to Valve Position Limiter failure. Ramped unit down to 100% power.

0830 Unit stable at 99.6% power, 942 Mwe.

1110 Commence raising power-to 100% power.

1131 Unit power at 100% power, 943 Mwe.

July 19, 1997 1320 Unit lost 105 Mwe due to failure of the turbine Valve Position Limiter, 90% power.

1444 Unit stable at 89% power, 835 Mwe.

July 21,1997- 1611 Commence ramp up to 98% power. Initial power 86%, 826 Mwe.

1640 90% calorimetric complete, ramping up to 98%

power.

1740 Holding ramp at 98% power, 930 Mwe per management administrative hold.

2310 Power restriction lifted, ramping to 100%

power from 98%, 920 Mwe.

2324 Stopped ramp at 99.5%, 940 Mwe due to 10 megawatt swing causing reactor power to swing about 0. 5% power. Swing attributed to Valve Position Limiter problem.

July 23, 1997 1330 Load increased to 100.5 % power when turbine control was switched to TURBINE MANUAL.

UNIT NO. 1 MONTH: July

SUMMARY

OF OPERATING EXPERIENCE Page 3 of 3 1450 Calorimetric complete. Unit at 100% power, 948 Mwe. July 24, 1997 1356 Removed turbine control from the */alve Position Limiter and transferred control to IMP OUT mode to maintain the governor valves in a more stable ;gion. Unit at 100% power, 949 Mwe.

I July 31, 1937 2400 Ended month in Mode 1 at 100% power, 949 MWe.

4 4 4

t l , , Page 1 of 1 1

UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: 50-338 Report Month July Unit Name: NA-1 Years 1997 Dates August 5, 1,122

Contact:

W. R. Matthews

• No-entries this month,

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-338 UNIT NAME: NA-1 -

DATE: August 5,1997 REPORT MONTH: July 1997 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 # Prevent Recurrence

• No entries this month.

1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1 Manual Exhibit F - Instruction S= Scheduled B= Maintenance or Test. 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licens D= Regulatory <striction 4= Continuations Event Report (LER) File E= Operator "raming & License Examination 5= Load Reduction (NUREG-0161)

F=Administrat.ve 9-Other G= Operational Error 5:

H=Other (explain) Exhibit H - Same Source m______..... . . . . . - . . . . . - - - . - . . . -

. OPERATING DATA REPORT

, , DOCKET NO.t 50 139 LATE: August 5, 1997 COFTACT: N. R. Matthews FHONE (440) 894-2101 OPERATING $7ATUS

1. Unit Names. .. . . Nonth Anna 2

2. Reporting feriods. . .. . . . July 1997

3. Licensed Thermal Power (MWtli. 2,891

4. Nameplate Rating IQtoss MWebs. . 979

5. Design Electrical Ratthg (Net MWeli.... . . 907

6. Maximum Dependable Capacity (Gross MWels. 944

7. Naminum Dependable Capacity (Not MWeli. 897

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

l

9. Power level to which mostricted, if any (Net MWeli N/A

10. Reasons for restrictione, if any N/A i

This Month Y-t D Cumulative

11. Hours in Reporting terlod. . . . . . . . 744,0 5,087.0 145,775.0

12. Nunter of Hours Reactor was Critical. . 144.0 5,057.0 122.042.2

13. Reactor Deserve shutdown Hours.. 0.0 0.0 7,163.2

14. Hours Generator On.l.ine., . . . . . 744.0 5,087.0 120,871.2

15. tinit Rese ve Shutdown Hours. . . . ... . . 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH). ... . , . 2,151,784.1 14,709.884.4 330,291,802.4

17. Gross Electrical Energy Generated (MdH). . . . 698,171.0 4,f09,097.0 100,079,132.0

18. Not Electrical Energy Generated IMWHl. . .. . . . 663,472.0 4,578,937.0 103,212.119.0

19. Unit Service Factor.. . . . . 100.0% 100.0% 82.9%

20. Unit Availability Factor. . . . . ,, . . . 100.0% 100.0% 42.9%

21. Unit Capacity Factor lusing MDC Net). . . . ., . 99.4% 100.3% 18.6%

22. Unit Capacity Factor (using DER Net). . 98.3% 99.2% 78,1%

23. Forcet Outage Rate,. . . .. . . . . . 0.04 0.0% 5.2%

24. Shut downs scheduled Over Next 4 Montha (Type, Date, Duration of Bach): N/A

25.  !! Shutdown at end of Report Perind, estimated time of Startu N/A

26. Units in Test Status (Prior to Commercial Operation)s Forecast Achieved IN!TIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

l

. i

. e AVERAGE DAILY UNIT POWER LEVEL Docket No.: 50-339 Unit: NA-2 Date Aucust 5. 1997

Contact:

W. R. Matthews Phones .f 540) 894-2101

)

MONTH: July 1997 l l

DAY AVERAGE DAILY POWER DAY AVERAGE DAILY POWER LEVEL (MWe-Net) LEVEL (MWe-Net) 1 893 17 890 ,

2 893 18 889 3 892 19 889 4 892 20 890 5 891 21 890 6 892 22 890 7 892 23 892 8 892 24 893 9 891 25 894 10 891 26 895 11 893 27 893 12 893 28 893 13 892 29 892 14 891 30 893 15 890 31 893 16 890 i

s 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.

t

NORTH ANNA PONER STATION UNIT NO. 2 NONTH

July

SUMMARY

OF OPERATING EYDERTENCE Page 1 of 1 Listed below in chronological sequence is a summary of operating-i cxperiences for this month which required load reductions or resulted in l cignificant non-load related incidents.

Date Time Data July 01,- 1997 0000 Began month in Mode 1 at 100% power, 938 MWe.

July 06, 1997 0045 Commence ramp down for Turbine Valve Freedom Test (TVFT). Unit at 100% power, 936 MWe.

0107 Unit stable at 93% power, 885 Mwe.

0124 Commence unit ramp up following TVFT. Unit at 93% power, 885 Mwe.

0147 Unit stable at 100% power, 938 Mwe.

--July 31, 1997 2400 Ended month in Mode 1 at 100% power, 938 MWe.

. - Page 1 of 1 UNIT SHUTDOWN AND POWER REDUCTIONS Explanation Sheet Docket No.: 50-339 Report Month July Unit Name: NA-2 Year: 1997 Date: August 5. 1997

Contact:

W. R. Matthewn

• No entries this month, f

(

~

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.: 50-339 UNIT NAME: NA-2 DATE: August 5, 1997 REPORT MONTH: July 1997 CONTACT: W. R. Matthews PHONE: (540) 894-2101 1 2 3 4 5 No. Date Type Duration Reason Method of Licensee Sy: tem Component Cause & Corrective (hrs) Shutting Event Code Code Action to Down Reactor Report # Prevent Recurrence 5

• No entries this month.

1: Type 2: Reason 3: Method 4:

F= Forced A= Equipment Failure (explain) 1= Manual Exhibit F - Instruction S= Scheduled B= Maintenance or Test 2= Manual Scram for preparation of Data C= Refueling 3= Automatic Scram Entry Sheets for Licens D= Regulatory Restriction 4= Continuations Event Report (LER) File E= Operator Training & License Examination 5= Load Reduction (NUREG-0161)

F= Administrative 9eOther G= Operational Error 5:

H=Other (explain) E:chibit H - Same Source L