ML20058P665

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Monthly Operating Rept for Jul 1990 for Virgil C Summer Nuclear Station
ML20058P665
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 07/31/1990
From: Haltiwanger J
SOUTH CAROLINA ELECTRIC & GAS CO.
To:
Shared Package
ML20058P661 List:
References
NUDOCS 9008170260
Download: ML20058P665 (8)
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Text

Document Control Desk July Monthly Operating Report Page 1 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.: 50/395 UNIT: V. C. SUMMER I DATE: 08/01/90 COMPLETED BY: J. W.'HALTlWANGER TELEPHONE: (803) 345-4297 JULY 1990 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)

1. 881 17. 879
2. 881 18. 080
3. 880 19, 880 4, 881 20. 881
5. 880 21. 881
6. 785 22, 881
7. -35 23. 879
8. 171 24, 879
9. 684 25, 879 10, 880 26. 878
11. 879 27, 878
12. 880 28. 878
13. _ 880 29. 879
14. 881 30. 879 15, 880 31. 878
16. 879 l

'9008170260 400815 PDR ADOCK 05000393 R PDC

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Document Control Desk July Monthly Operating Report Page 2 ATTACHMENT 11 OPERATING DATA REPORT DOCKET NO.: 50/395 UNIT: V. C. SUMMER I DATE: 8/1/90 COMPLETED 8Y: J. W. HALTlWANGER TELEPHONE: (803) 345-4297 OPERATING STATUS

1. Reporting Period: July 1990 Gross Hours in Reporting Period: 744 2.CurrentlyAuthorizedPowerLevel(MWt): 2775 Max. Depend. Capacity (MWe-Net): _.886 DesignElectricalRating(MWe-Net):- 900 3.PowerLeveltoWhichRestricted(ItAny)(MWe-Net): N/A
4. Reasons for Restrictions: N/A THIS MONTH YR TO DATE CUMULATIVE
5. Number of Hours Reactor Critica 744.0 3673.3 43686.1
6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0
7. Hours Generator on Line 716.7 _3589.4 42749d
8. Unit Reserve Shutdown Hours {

0.0 0.0 0.0 '

9.'GrossThermalEnergyGenerated(MWH) 1928248 9657093 112027406

10. Gross Electrical Energy (MWH) .635880 3193010 _37054719
11. Het Electrical Energy Generated (MWH) 608524 3039486 35139402
12. Reactor Service Factor 100.0 72.2 75.7-
13. Reactor Availability Factor 100.0 72.2 75.7
14. Unit Service Factor 96.3 70.6 74.1
15. Unit Availability Factor 96.3 70.6 74.1 16.UnitCapacityFactor(UsingMDC) 92.4 67.5 68.8
17. Unit Capacity Factor (Design MWe) 90.9 66.4 67.7
18. Unit Forced Outage Rate 0.0 0.0 8.3 19.ShutdownsSchaduledOverNext6 Months (Type.Date&DurationofEach):

N/A

20. If Shut Down at End of Report Period. Estimated Date of Startup:

N/A  !

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21. Units in Test Status (Prior to Commercial Operation): N/A /

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Document Control Desk  !

March Monthly Operating Report  ;

Page 2 "

A'iTACHMENT II ,

OPERATING DATA REPORT

{

DOCKET NO.: 50/395 UNIT: V. C. SUMMER I DATE: 4/1/90 COMPLETED BY: J. W. HALTlWANGER .

TELEPHONE: (803) 345 4297

( OPERATING STATUS

1. Reporting Period: March 1990 Gross Hours in Reporting Period: 744 ,
2. Currently Authorized Power Level (MWt): 2775 i Max. Depend. Capacity (MWe. Net): i

__ B85 Design Electrical Rating (MWe-Net): 900

3. Power Level to Which Restricted (If Any)(MWe-Net): N/A
4. Reasons'for Restrictions: !!/A THIS MONTH YR TO DATE CUMULATIVE
5. Number of Hours Reactor Critica 554.0 1970.1 41982.9
6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0 '
7. Hours Generator on Line 551.0 -1967.4 41127.0
8. Unit Reserve Shutdown Hours 0.0 0.0 0.0
9. Gross Thermal Energy Generated (MWH) 1508020 5426744 107797057 10.GrossElectricalEnergy(MWH) 500300 1798980 35660682
11. Het Electrical Energy Generated (MWH) 476372 1722395 33822311
12. Reactor Service Factor 74.5 91.1 76.7 i
13. Reactor Availability Factor 74.5 91.2 76.7
14. Unit Service Factor 74 91.1 75.1
15. Unit Availability Factor 74. 1 90.1 75.1
16. Unit Capacity Factor (Using MDC) 72.3 90.1 69.8
17. Unit Capacity Factor (Design MWe) _ 71.1 88.6 68.6
18. Unit Forced Outage Rate 0.0 0.0 8.6 ,
19. Shutdowns Scheduled Ov6r Next 6 Months (Type, Date & Duration of Each):

REFUELING OUTAGE. 03/23/90. 65 DAYS

20. If Shut Down at End of Report Period, Estimated Date of Startup:

05/27/90

21. Units in Test Status (Prior to Commercial Operation): N/A i

i M._

Document Control Desk April Monthly Operating Report Page 2 ATTACHMENT II OPERATING DATA REPORT DOCKET NO.: 50/395 UNIT: V. C. SUMMER I DATE: 5/1/90 COMPLETED BY: J. W. HALTIWANGER TELEPHONE: (803) 345-4297 OPERATING STATUS

1. Reporting Period: April _191Q Gross Hours in Reporting Period: 744 2.CurrentlyAuthorizedPowerLevel(MWt): 2775 Max. Depend. Capacity (MWe-Net): _ . . 885 Design Electrical Rating (MWe. Net): 900
3. Power Level to Which Restricted (If Any)(MWe. Net): N/A
4. Reasons for Restrictions: M THIS MONTH YR TO DATE CUMULATIVE
5. Number of Hours Reactor Critica 0.0 1970.1 41982.9
6. Reactor Reserve Shutdown Hours 0.0 0.0 0.0
7. Hours Generator on Line 0.0 1967.4 41127.0
8. Unit Reserve Shutdown Hours 0.0 0.0 0.0  ;
9. Gross Thermal Energy Generated (MWH) 0 5426744 197797057
10. Gross Electrical Energy (MWH) 0 1798980 35660689 !
11. Net Electrical Energy Generated (MWH) -5176 1717219 33817135 =
12. Reactor Service Factor 0.0 68.4 75.7 '
13. Reactor Availability Factor _ 0.0 68.4 75.7
14. Unit Service Factor 0.0 68J 74.1
15. Unit Availability Factor 0.0 68.3 74.1
16. Unit Capacity Factor (Using MDC) 0.0 67.4 68.9
17. Unit Capacity Factor (Design MWe) 0.0 66.3
18. Unit Forced Outage Rate 67.7k 0.0 0.0 8.6
19. Shutdowns Scheduled Over Next 6 Months (Type, Date & Duration of Each):

REFUELING OUTAGE. 03/23/90. 65 DAYS

20. If Shut Down at End of Report Period. Estimated Date of Startup:

05/27/90

21. Units in Test Status (Prior to Commercial Operation): N/A l

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l Document Control Desk May Monthly Operating Report Page 2 ATTACHMENT 11 OPERATING DATA REPORT DOCKET NO.: 50/395  !

UNIT: V. C. SUMMER I DATE: 6/1/90  !

COMPLETED BY: J. W. HALTlWANGER TELEPHONE: (803) 345 4297 OPERATING STATUS ,

1. Reporting Period: May 1990 Gross Hours in Reporting Period: 744
2. Currently Authorized Power Level (MWt): 2775 Max. Depend. Capacity (MWe. Net): 885 Design Electrical Rating (MWe. Net): 900  :
3. Power Level to Which Restricted (If Any)(MWe. Net): N/A
4. Reasons for Restrictions: WA THIS MONTH YR TO DATE CUMULATIVE
5. Number of Hours Reactor Critica 239.2 2209.3 42222
6. Reactor Reserve Shutdown Hours 0.0 . 0.0 0.0
7. Hours Generator on Line 185.3 12152.7 41312.3 j 8. Unit Reserve Shutdown Hours 0.0 00 0.0-l 9.GrossThermalEnergyGenerated(MWH) _305992 5732736 108103049
10. Gross Electrical Energy (MWH) 95440 1894420 35756129 l 11.HetElectricalEnergyGenerated(MWH) 77568 1794787 33894703
12. Reactor Service Factor 32.2 61.1 75.1
13. Reactor Availability Factor 32.2 --61.2 75.1
14. Unit Service factor 24.9 59.4 73.5
15. Unit Availability factor 24.9 59.4 73.5
16. Unit Capacity Factor (Using MDC) 11.8 56._0 68.1
17. Unit Capacity factor (Design MWe) 11.6 55.0 67.0
18. Unit Forced Outage Rate 0.0 0.0 8.5 19.ShutdownsScheduledOverNext6 Months (Type,Date;&DurationofEach):

N/A

20. If Shut Down at End of Report Period. Estimated Date of Startup:

N/A

21. Units in Test Status (Prior to Commercial Operation): N/A

Document Control Desk June Monthly Operating Report Page 2 ATTACHMENT 11 OPERATING DATA REPORT DOCKET NO.: 50/395 UNIT: V. C. SUMMER I DATE: 7/1/90 COMPLETED BY: J. W. HALT!WANGER TELEPHONE: (803)345-4297 OPERATING STATUS

1. Reporting Period: . June 1990 Gross Hours in Reporting Period: 744
2. Currently Authorized Power Level (MWt): 2775 Max. Depend. Capacity (MWe. Net): . 885 Design Electrical Rating (MWe. Net): 900 3.PowerLeveltoWhichRestricted(IfAny)(MWe. Net): N/A
4. Reasons for Restrictions: N/A THIS MONTH YR TO DATE CUMULATIVE
5. Number of Hours Reactor Critica 720.0 2229.3 42942.1
6. Reactor Reserve Shutdown Hours 0.0 0._0 0.0
7. Hours Generator on Line __720.0 2872.7 42032.3
8. Unit Reserve Shutdown Hours 0.0 0.0 0.0
9. Gross Thermal Energy Generated (MWH) 1996109 7728845 110099158 10.GrossElectricalEnergy(MWH) _b62710 2557130 36418839
11. Het Electrical Energy Generated (MWH) _636175 2430962 34530873
12. Reactor Service factor 100.0 67.4 75.4
13. Reactor Availability factor 100.0 67.4 75.4
14. Unit Service Factor 100.0 66.1 73.8
15. Unit Availability factor 100.0 66.1 73.8
16. Unit Capacity Factor (Using MDC) 99.8 63.2 68.5
17. Unit Capacity Factor (Design Mde) 98.2 62.2 67.4
18. Unit forced Outage Rate 0.0 0.0 8.4
19. Shutdowns Scheduled Over Next 6 Months (Type. Date & Duration of Each):

N/A

20. If Shut Down at End of Report Period. Estimated Date of Startup:

N/A

21. Units in Test Status (Prior to Commercial Operation): N/A

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t Document Control Desk t July Monthly Operating Report i Page 3 ATTACHMENT III t, NIT SHUTDOWNS AND POWER REDUCTIONS f

DOCKET NO.: 50/395 UNIT: V. C. SUMMER 1 DATE: 08/01/90.

COMPLETED BY: J. W. HALT!WANGER .

TELEPHONE: (803) 345-4297 ,

JULY 1990 Method of TYPE Shutting F or S Duration No. Date Reason Down the Corrective Actions /

forced or (Hours) Reactor or Coments Scheduled Reducing Power i

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2 7/6/90 S 27.3 8 1 Repair Altere; Coupling

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Document Control Desk l July Monthly Operating Report )

Page 4  ;

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ATTACHMENT IV i NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE j DOCKET NO.: 50/395 UNIT: V. C. SUMMER I  !

DATE: 08/01/90 l COMPLETED BY: J.-W. HALTIWANGER TELEPHONE: (803)345-4297 i JULY 1990 9

V. C. Summer Nuclear Station operated at approximately 100% power through July 5, 1990.

On July 6 at 2010 hours0.0233 days <br />0.558 hours <br />0.00332 weeks <br />7.64805e-4 months <br />, power reduction commenced to correct a misalignment of the alterex coupling. The generator breaker was opened at 2250 hourt. The reactor was maintained critical in Mode 2 until 0045 hours5.208333e-4 days <br />0.0125 hours <br />7.440476e-5 weeks <br />1.71225e-5 months <br /> on July 8 when Mode 1 was entered. The generator breaker was closed at 0208 on July 8 and power escalation began. Following a twelve hour hold for water chemistry at 30 percent power the plant reached full power at 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br /> on July 9. '

V. C. Summer Nuclear Station operated at approximately 100% power for the remainder of July 1990, i

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