ML20092M824

Monthly Operating Rept for May 1984

ML20092M824
Person / Time
Site:	Summer
Issue date:	05/31/1984
From:	Dixon O, Loignon G SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Barry L NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8407020397
Download: ML20092M824 (6)

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Director, Of fice of Resource. Management '

May Monthly Operating Report

-Page.2 June 12, 1984 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL 7 DOCKET NO. 50/395 '

UNIT V. C. SUMMER I DATE 06/08/83 COMPLETED BY G. A. Loignon TELEPHONE (803) 345-5209 MONTH MAY 1984 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL ,

(MWe-Net) (MWe-Net) '

l. -33 17, 890

2. -32 18. 893

3. 203 19. 892

4. 709 20. 893

5. 125 21. 891

6. -32 22. 890

7. 299 2 3. , 894

8. 833 24. 895 ,

9. 886 25. 890

10. 889 26. 893 ,

11. 892 27. 897

12. 890 28. 891

13. 891 29. 893

14. 889' 30. 893

15. 887 31. 894

16. 886 i

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Director, Office of Resource Management

-May Monthly Operating Report Page 3

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June 12,.1984 l ATTACIPENT II {

OPERATEG DATA REPORT f

1 DOCKET NO. 50/395 UNIT V. C. StBMER I I

DATE 06/08/84  !

00MPIEEED BY G. A. Imignon TELEPHONE (803) 345-5209 i

OPERATDG STA'IUS ,

1. Reporting Period: MAY 1984 Gross Hours in Reporting Period: 744 ,

2. Currently Authorized Power Level (MWt): 2775

~ Max.' Depend. Capacity (Me-Net): 885 1

~ Design Electrical. Rating -(MWe-Net): 900

3. Power Level to which' restricted (If Any)(MWe-Net): N/A '

4. Reasons for Restrictions (If Any): NONE t

THIS MONTH YR 'IO DATE CLMIATIVE 1

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5. Number of' Hours Reactor Was Critical 673.8 2,686.3 10,021.1

6. Reactor Reserve Shutdown Hours. 0 0 0  :

7. Hours Generator on Line 642.0 2,571.0 9,570.4

.8. Unit Reserve Shutdcm1 Hours 0 0 0

- 9. Gross Thernal Energy Generated (MMI) 1,704,230 6,946,245 21,556,780

10. Groas 31ectrical Energy Generated (MMI) 567,668 2,318,940 7,099,450

.11. Net Electrical Energy Generated (MMI) 541,650 2,208,311 6,701,087

12. Reactor Service Factor 90.6 73.7 73.7

13. Reactor Availability Factor 90.6 73.7 73.7 ,

~ 14.- (kilt Service Factor 86.3 70.5 70.5

15. Unit Availability Factor 86.3 70.5 70.5

16. Unit Capacity Factor (Using EC) 82.3 68.4 68.4

- 17. Unit Capacity Factor (Using Design MWe) 80.9 67.3 67.3

18. Unit Forced Outage Pate 7.9- 10.2 10.2 ,

.19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

- Refueling, hstenber 1984, 60 Days.

~ 20. If Shut Down at Fnd of Report Period, . Estimated Date of Startup: N/A g21. Units in Test Status (Prior to Connerical Operat ion):

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FORECAST AOIIEVED Initial Criticality N/A 10-22-82 Initial Electricity N/A 11-16-82 r

-Ca mercial Operation N/A 01-01-84 t

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• Director, Office'of Resource Management May Monthly Operating Report Page 4 June 12, 1984 ATTACHMENT II.A CHANGES TO ATTACHMENT II FROM PREVIOUS REPORT The basis for the following lines have been changed to. comply with current instructions; the May report contains the revised information.

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Lines 10 & 11, Year to Date and Cumulative: gross and net electrical energy were recalculated based on beginning and end of month meter readings.

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.  :: .: . l LDirectork-Offico'of: Resource Management  !

MayLMonthly Operating Report-

P ge'5' ..

June 12,.1984.  !

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ATTACHMENT III  :

' UNIT SHUTDOWNS AND POWER REDUCTIONS l

, i DOCKET NO. 50/395

' UNIT V. C. SUMMER I.

. DATE 06/08/83  !

COMPLETED BY G. A. Loignon ~*

TELEPHONE (803) 345-5209l i

(1) METHOD OF (2) i TYPE SHUTTING,DOWN F:-FORCED DURATION THE REACTOR OR CORRECTIVE ACTIONS / l NO. DATE S: SCHEDULED (HOURS) REASON -REDUCING POWER COMMENTS  ;

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-5' 840425 F 55.2 A 4 5) Continuation of l Outage. l t

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'6 840505 S- 46.8 B 1 I6 ) Plant Shutdown to  ;

test Feedwater l Regulating Valves. '

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Dire'ctor,- Of fice. of Resource Management l '

May Monthly-Operating Report ~

Page 6 i June'12,-1984  ;

ATTACHMENT IV NARRATIVE:

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SUMMARY

OF-OPERATING EXPERIENCE j

The virgil C. . Summer Nuclear-Station, Unit No. 1, remained shut

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i down1for a forced outage until May. 3,1984.

JOn May 5, 1984, at 0605 hours0.007 days <br />0.168 hours <br />0.001 weeks <br />2.302025e-4 months <br />, the Plant was taken off line to i

. facilitate testing of the Feedwater Regulating Valves (FRV). .The valves' stroke time had been adjusted for a maximum-of five (5) i seconds prior tofa plant restart on May 4. Control problens i experienced with the -FRV's _during f aubsequent power escalation  ;

necessitated adjustments to.the: pneumatic controller which affected ,

the-valve' stroke time-and led to the management decision on May 5

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-to shutdowniand re-verify closure times. During a Plant outage of I g46.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> in duration, a design modification was implemented to  !

segregate the control and trip portions of the pneumatic system.

• On May 5, 1984,.at 1927 hours0.0223 days <br />0.535 hours <br />0.00319 weeks <br />7.332235e-4 months <br />,;with the Plant.in Mode 3, a' main

. steam isolation occurred onilow-low -Tave . coincident with high

-steam flow. The high steam flow signal was present:since the

. bistables for . the instrumentation ' channel had previously _been tripped'to perform'maintenanceion the flow transmitter. Concurrent  ;

maintenance.on an' automatic steam dump controller inadvertently generated-a 504 demand' signal to'the steam dump. valves which caused the low-low T ave signal- when Reactor Coolant System temperature

• decreased from 557'F to 551*F. Operations personnel promptly oterminated the steam dump and re-established normal operating parameters, t

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on May 31, 1984,-_the Plant continued to operate at approximately 1004 power.

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• 4 f SOUTH CAROLINA ELECTRIC & GAS COMPANY Posi oprict 7e4 CotuusiA. south CAROLINA 29218

- O. W. DixON, JR.

- VICE PassiosNT NUCLEAR OPERATIONS June 12, 1984  ;

Director, Office of Resource Management U.S. Nuclear Regulatory Commission  ;

-MNBB 7602 Washington, DC 20555

' ATTN: Mr. Learned W. Barry

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SUBJECT:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 May Monthly Operating Report

Dear Mr. Barry:

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Please find enclosed the May 1984 Monthly Operating Report for the Virgil C. Summer Nuclear Station Unit No. 1 as required by Technical Specification 6.9.1.10. .

I If there are any. questions, please call us at your convenience.

Very trul yours, O. W. ixon, .

4 HCF: GAL:OWD/dwf Attachment  ;

cc: V. C. Summer C. A. Price T. C. Nichols, Jr./O. W. Dixon, Jr. C. L. Ligon (NSRC)

-E. H. Crews, Jr. K. E. Nodland E. C. Roberts R. A. Stough W.-A. Williams, Jr.

G. Percival H. R.-Denton C. W. Hohl J '. P._O'Reilly J. B. Knotts, Jr.

Group Managers INPO Records Center D. A. Nauman ANI Library  ;

O. S. Bradham NPCF File b

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