ML040970406

Annual Operating Report

ML040970406
Person / Time
Site:	Summer
Issue date:	03/31/2004
From:	Byrne S South Carolina Electric & Gas Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RG-1.016
Download: ML040970406 (11)

Text

Stephen A. Byrne Senior Vice President, Nuclear Operations 803.345.4622 A SCANA COMPANY March 31, 2004 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

VIRGIL C. SUMMER NUCLEAR STATION DOCKET NO. 50-395 OPERATING LICENSE NO. NPF-12 ANNUAL OPERATING REPORT Enclosed is the 2003 Annual Operating Report for the South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Unit No. 1. This report is being submitted in accordance with Technical Specifications 6.9.1.4, 6.9.1.5, and Regulatory Guide 1.16.

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

Very

yours, ephen A. Byre SBR/SAB/sr Az, IF,JAC Attachment c:

N. 0. Lorick T. G. Eppink (w/o attachment)

R. J. White L. A. Reyes K. R. Cotton REIRS Project Manager K. M. Sutton D. L. Abstance W. G. Wendland J&H Marsh & McLennan NRC Resident Inspector NSRC RTS (0-L-99-01 07)

File (818.02-10, RR 8225)

DMS (RC-04-0043)

SCE&G I Virgil C Summer Nulear Station

• P.O. Box 88 *Jenkinsville, South Carolina 29065. T(803) 345.5209

• wwwscano.com

VIRGIL C. SUMMER NUCLEAR STATION 2003 ANNUAL OPERATING REPORT

PREFACE The 2003 Annual Operating Report for the Virgil C. Summer Nuclear Station is hereby submitted in accordance with Technical Specifications 6.9.1.4, 6.9.1.5, and Regulatory Guide 1.16 under Docket Number 50/395 and Facility Operating License NPF-1 2.

TABLE OF CONTENTS SECTION 1.0 2.0 3.0 4.0 5.0 TITLE Introduction Operational Data Operating Summary Exposures Failed Fuel PAGE 1

1 1

3 3

ATTACHMENTS 1.

Outages or Power Reductions Caused by Maintenance Activities 2003 Man-Rem Report I.

ANNUAL OPERATING REPORT

1.0 INTRODUCTION

The Virgil C. Summer Nuclear Station (VCSNS) utilizes a pressurized water reactor rated at 2900 MWT. The maximum dependable capacity is 966 Mwe.

The station is located approximately 26 miles northwest of Columbia, South Carolina.

2.0 OPERATIONAL DATA For the reporting period of January 1 through December 31, 2003, the station operated at a capacity factor of 86.9 percent (using maximum dependable capacity) and a unit availability of 86.4 percent. The reactor was critical for a total of 7655.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, the generator remained on line 7565 hours0.0876 days <br />2.101 hours <br />0.0125 weeks <br />0.00288 months <br />, and the total gross electrical energy generated for 2003 was 7650970 MWH.

The station successfully completed its fourteenth (14th) refueling outage in 46 days and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

3.0 OPERATING

SUMMARY

The Virgil C. Summer Nuclear Station (VCSNS) Unit No.1 operated at 100 percent power from January 1 through January 9th.

On January 9th, the calorimetric computer program used to calculate the feedwater flow rate based value of reactor thermal power (Fivcals) malfunctioned.

As a result of the computer program, reactor power was reduced to 99 percent power. Power was restored to 100% at 0650 on January 9th.

VCSNS operated at 100 percent power from January 9th to January 17th. On January 17' a reactor shutdown began due to the "B" reactor trip breaker being declared inoperable.

On January 17th at 1510 the breaker was repaired and declared operable. The shutdown was terminated and power was restored to 100% at 1625 on January 17th.

VCSNS operated at 100 percent power from January 17th to March 7th. On March 7t, power was reduced to 92% to support quarterly control valve testing. Power was restored to 100% on March 8 th.

VCSNS operated at 100% power from March 8th to May 12th.

On May 12th the reactor tripped. The opening of the main generator breaker caused a turbine trip, which then resulted in a reactor trip. The main generator breaker opened due to the failure of contacts in the generator field breaker. The circuitry was repaired and modified by adding a set of backup contacts. Repairs were completed and the reactor became critical on May 14th. The main generator breaker was closed on May 1 5th. Power was restored to 100% on May 16th.

Annual Operating Report Page 2 of 3 VCSNS operated at 100 percent power from May 16th to June11th. On June11th, the "B" Reheater Drain Tank level transmitter (ILT03715A) failed high causing the tank to isolate and the 1 B feedwater heater to trip. Reactor power was reduced to 92% in accordance with AOP-204.1. The level transmitter was repaired and full power was restored on June 12th. VCSNS operated at 100 percent power from June 12th to June 21st. On June 21St power was reduced to 98% to perform torquing of the connectors on similar transmitters in the secondary plant. The maintenance was completed and reactor power was restored to 100% on June 21 st.

VCSNS operated at 100 percent power from June 2 lstto October 8h. On October 8th power was reduced to 85% to support main steam safety valve testing. On October 11th at 0010 the fourteenth refueling outage began with the opening of the main generator breaker. The plant remained shutdown for the refueling outage until November 26th when the main generator breaker was closed. The main turbine was manually tripped due to hiMO vibration on November 26t~'.

The breaker was closed at 1011 on November 26; however, the main turbine tripped again due to high vibration. The breaker was closed at 1622 on November 26t. Reactor power was restored to 100% on November 29th.

VCSNS operated at 100 percent power from November 29th to December 3rd. On December 3rd power was reduced to 98% to support maintenance on the feedwater heater level transmitter. The maintenance was completed and reactor power was restored to 100% on December 4t.

The plant operated at 100%

reactor power for the remainder of 2003.

Maintenance Attachment I, "Power Reductions Caused by Maintenance Activities,' provide more detailed information on operating time lost as a result of maintenance activities.

Refuel 14 Summary The main generator breaker was opened at 0010 on October 11 h, for refueling outage 14.

Major work activities included:

• Reactor Coolant Pump 'C' Seal Maintenance

• Reactor Coolant Pump 'C' Motor Replacement

• Reactor Coolant Pump 'C' Seal Injection Flange Spool Piece Replacements

• Replacement of a three Reactor Coolant Pump Motors Component Cooling Water flanges

• Component Cooling Water Heat Exchanger Inspections

• "B" Component Cooling Water Heat Exchanger Plasticoating

• 10 Year Reactor Vessel In Service Inspection

Annual Operating Report Page 3 of 3

• Reactor Containment Integrated Leak Rate Test

• Main Generator Stator Cooling Leak Repair

• Maintenance on both Emergency Diesel Generators

• Main Transformer Repair

• Reactor Vessel Upper Head Boron Inspection

• Reactor Vessel Lower Head Boron Inspection

• Both Trains of Engineered Safety Features Integrated Safeguards Testing

• Service Water Piping UT Inspection

• Reactor Building Paint Repairs

• Digital Rod Position Indication Data A Failure Repair

• Replacement of Feedwater Piping Downstream of FW Regulating Valve IFV0498 Refueling Outage 14 duration was 46 days and 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. Outage planned duration was approximately 35.8 days.

Personnel exposure in 2003 due to the outage was approximately 76 man-rem based on electronic dosimeters.

4.0 EXPOSURES Attachment II consists of tables, which list the number of station, utility, and other personnel (including contract personnel) receiving exposures greater than 100 mrem/year and their associated man-rem exposure according to work and job function.

The exposures reported are estimated doses based on. electronic dosimeters.

5.0 FAILED FUEL VCSNS did have indications of failed fuel in 2003.

The reactor coolant system specific activity did not exceed the 1.0 microcuries per gram dose equivalent iodine-131 specific activity or the 100/E microcuries per gram limits of Technical Specification 3.4.8, for this reporting period.

ATTACHMENT I TO 2003 ANNUAL REPORT

V. C. Summer Nuclear'Station Events' Outage or Power Reductions Caused by Maintenance Activities Net CaDacity Date Time Start cause of EventINERCGADS* Code D

T Fs-TlreinishDuration'rMte.'

Lb~~fH~at~a~ance~ntegrAted- -Plat Ag 71 119/2003 0400 Hrs 11912003`0730 His '7 3.5 Hrs Mm 963,1 Unplanned II' 7I2003 1443 Hrs ret io'-1rireak Pi 111712003,-,,43 5.0 Hrs

/

nplanned 512/2003 0102 Hr is.....

rFildBraker/4740-----------

5/16/2003.0600' 77.0 Hrs g I Unplanned

.120377.0H Hisdil14107Min:

95 UPlanned

.'e>-

4;

..'s_-.

0 3

0520 Hrs Refue 10/11/200

-68r.'.

l.l/Avg 75l Planned

-10I11/200ti 0010 H rs [Refuel 1412070 f

111/15

/2003,01 i 849.0 Hrs t-Mno

/vg~~ Planned 44 1115/200 0910 Hrs,e

l.

uage.xensl'2 11262003 622Hrs 271.2 Hrs 'c- --

iMi 0X Unplanned

-E2-61126I0-033 1622 Hs 11c0021 Hrs 1 80heduld,Ra.0 Hisiting/2070 1

OA 11-

.0HrsPlanned

.7 2307 Hrs ers/350 12/412003 0948: H rs 10.7 Hrs V.Mmn952/Avig957-Unplanned

ATTACHMENT 11 TO 2003 ANNUAL REPORT

SOUTH CAROLINA ELECTRIC AND GAS CO.

V.C. SUMMER NUCLEAR STATION PEOPLE COMPUTERIZED EXPOSURE NUCLEAR TRACKING SYSTEM PAGE I

CNTRPTPERG116R 21-JAN-2004 06:41 PERSONNEL AND MAN-REM BY WORK AND DUTY FUNCTION FINAL END OF YEAR REPORT FOR 2003 NUMBER OF PERSONNEL OVER 100mREM TOTAL MAN-REM STATION UTILITY CONTRACT STATION UTILITY CONTRACT WORK AND JOB FUNCTION WORKERS WORKERS WORKERS WORKERS WORKERS WORKERS ROUTINE MAINTENANCE MAINTENANCE PERSONNEL 17 0

55 6.270 0.000 18.191 OPERATIONS PERSONNEL 3

0 3

1.202 0.000 0.794 HEALTH PHYSICS PERSONNEL 9

0 3

2.073 0.000 1.028 SUPERVISORY PERSONNEL 0

0 0

0.302 0.000 0.003 ENGINEERING PERSONNEL 0

0 0

0.217 0.000 0.188 SPECIAL MAINTENANCE MAINTENANCE PERSONNEL 3

0 22 2.642 0.000 9.453 OPERATIONS PERSONNEL 4

0 2

1.268 0.000 0.458 HEALTH PHYSICS PERSONNEL 0

0 2

0.368 0.000 0.485 SUPERVISORY PERSONNEL 1

0 0

0.272 0.000 0.011 ENGINEERING PERSONNEL 0

0 0

0.267 0.000 0.078 REACTOR OPERATIONS & SURVEILLANCE MAINTENANCE PERSONNEL 5

0 5

1.493 0.000 1.422 OPERATIONS PERSONNEL

.2 0

0 1.672 0.000 0.135 HEALTH PHYSICS PERSONNEL 2

0 1

0.723 0.000 0.240 SUPERVISORY PERSONNEL 0

0 0

0.145 0.000 0.007.

ENGINEERING PERSONNEL 0

0 0

0.074 0.000 0.009 WASTE PROCESSING MAINTENANCE PERSONNEL 0

0 0

0.029 0.000 0.027 OPERATIONS PERSONNEL 0

0 0

0.003 0.000 0.007 HEALTH PHYSICS PERSONNEL 3

0 1

0.654 0.000 0.166 SUPERVISORY PERSONNEL 0

0 0

0.023 0.000 0.000 ENGINEERING PERSONNEL 0

0 0

0.000 0.000 0.000 IN-SERVICE INSPECTION MAINTENANCE PERSONNEL 5

0 40 1.518 0.000 14.507 OPERATIONS PERSONNEL 1

0 3

0.941 0.000 0.798 HEALTH PHYSICS PERSONNEL 5

0 0

1.184 0.000 0.156 SUPERVISORY PERSONNEL 1

0 0

0.157 0.000 0.047 ENGINEERING PERSONNEL 1

0 0

0.166 0.000 0.058 REFUELING MAINTENANCE PERSONNEL 6

0 27 1.654 0.000 9.016 OPERATIONS PERSONNEL 0

0 0

0.325 0.000 0.029 HEALTH PHYSICS PERSONNEL 0

0 1

0.192 0.000 0.461 SUPERVISORY PERSONNEL 0

0 0

0.041 0.000 0.000 ENGINEERING PERSONNEL

.0 0

0 0.034 0.000 0.061 TOTALS MAINTENANCE PERSONNEL 36 0

149 13.606 0.000 52.616 OPERATIONS PERSONNEL 10 0

8 5.411 0.000 2.221 HEALTH PHYSICS PERSONNEL 19 0

8 5.194 0.000 2.536 SUPERVISORY PERSONNEL 2

0 0

0.940 0.000 0.068 ENGINEERING PERSONNEL 1

0 0

0.758 0.000 0.394 GRAND TOTAL 68 0

165 25.909 0.000 57.835 END OF REPORT ***********