View source for RC-98-0166, Monthly Operating Rept for Aug 1998 for VC Summer Nuclear Station,Unit 1.With

{{Adams
| number = ML20151V608
| issue date = 08/31/1998
| title = Monthly Operating Rept for Aug 1998 for VC Summer Nuclear Station,Unit 1.With
| author name = Bell W, Taylor G
| author affiliation = SOUTH CAROLINA ELECTRIC &amp; GAS CO.
| addressee name = 
| addressee affiliation = NRC, NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000395
| license number = 
| contact person = 
| document report number = RC-98-0166, RC-98-166, NUDOCS 9809150032
| title reference date = 09-10-1998
| document type = MONTHLY OPERATING ANALYSIS REPORT, TEXT-SAFETY REPORT
| page count = 7
}}

=Text=
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South Ctrolir.a Electric & C:s Company           Giry J. Talor Cg            Q A % AM GOmw Virgil C. Summer NIclear St tio2 P.O. Box 88 Vice President Nuclear Operations Jenkinsville, SC 29065 (803) 345-4344
      ,       ,                    (803) 345-5209 September 10, 1998 RC-98-0166 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555 Attention: Director, Office of Resource Management Gentlemen:

==Subject:==
VIRGIL C. SUMMER NUCLEAR STATION DOCKET NO. 50/395 OPERATING LICENSE NO. NPF-12 AUGUST MONTHLY OPERATING REPORT Enclosed is the August 1998 Monthly Operating Report for the Virgil C. Summer Nuclear Station Unit No.1. This submittalis made in accordance with the requirements of Technical Specifications, Section 6.9.1.10.
If there are any questions, please call me at your convenience.
V      t      ours, G              10 GJT/nkk                                                                                                 j Attachment gC c:      S. A. Byrne                                            Paulette Ledbetter W. F. Conway                                           INPO Records Center R. R. Mahan (w/o Attachment)                           J&H Marsh & McLennan                       l R. J. White                                            William G. Wendland (ANI)                  l L. A. Reyes                                            Pat Haught (Westinghouse)                  l L. M. Padovan               121?}bU                    RTS (LER 980003)                           i R. M. Padovan                                          File      (818.07)
NRC Resident inspector                                 DMS (RC-98-0166)
J. B. Knotts, Jr.
NUCLEAR EXCLLENCE- A SUMMER TRADITION!
9809150032 980831 E PDR       ADOCK 05000395 R                         PDR 4

    .                                                                                           i Director,-Office of Resource Management' August Monthly Operating Report Page 1 i
l ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET NO,         50/395 UNIT   V. C. SUMMER I DATE        9/ 8/98 COMPLETED BY W. H. BELL TELEPHONE    (803) 345-4389 AUGUST     1998 DAY AVERAGE DAILY POWER LEVEL          DAY AVERAGE DAILY POWER LEVEL (MWe-Net)                                (MWe-Net)
: 1.             745                     17.             953                     !
: 2.             744                     18,             954                      I
: 3.             773                     19.             953
: 4.             797                    20.              953 l                5.             798                    21.              954
: 6.             797                     22.             954
: 7.             797                     23,             953
: 8.          '798                       24.             955
: 9.              912                    25.             953
: 10.              954                    26.             952
: 11.              953                    27.             954
: 12.              953                    28.             953
: 13.              953                    29.             954 l
: 14.              954                    30.             953
: 15.              954                    31.             951
: 16.              954 l
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                                                   -&I Di' rector, Office of Resource Management August Monthly Operating Report Page 2 ATTACEMENT II OPERATING DATA REPORT DOCKET NO.          50/395 UNIT   V. C. SUMMER I DATE        9/ 8/98 COMPLETED BY W. H. BELL           ,
TELEPHONE    (803) 345-4389 OPERATING STATUS
: 1. Reporting Period:                August        1998 Gross Hours in Reporting Period:               744
: 2. Currently Authorized Power Level (MWt): 2900 Max. Depend. Capacity (MWe-Net):               954 Design Electrical Rating (MWe-Net):            963
: 3. Power Level to Which Restricted (If Any) (MWe-Net) : N/A
: 4. Reasons-for Restrictions: N/A THIS MONTH        YR TO DATE      CUMULATIVE
: 5. Number of Hours Reactor Critical          744.0            5727.7       106669.7
: 6. Reactor Reserve Shutdown Hours                 0.0             0.0            0.0
: 7. Hours Generator on Line                   744.0            5709.5       105128.3
: 8. Unit Reserve Shutdown Hours                    0.0             0.0            0.0 9.' Gross Thermal Energy Generated (MWH) 2058936            16273408      279085039
: 10. Gross Electrical Energy (MWH)-           702700           5604020        93319899
: 11. Net Electrical Energy Generated (MWH) 675215              5393913       88983535
: 12. Reactor Service Factor                     100.0             98.2            83.0 13.l Reactor Availability Factor               100.0             98.2            83.0 14.. Unit Service Factor                       100.0             97.9            81.8
: 15. Unit Availability Fac. tor                 100.0             97.9            81.8
: 16. ' Unit Capacity Factor (Using MDC)            95.1           97.1            77.4
: 17. Unit Capacity Factor (Design MWe)             94.2           96.1            76.2
: 18. Unit Forced Outage Rate                        0.0             2.1            3.9
: 19. Shutdowns Scheduled Over Next 6 Months (Type, Date & Duration of Each):
: 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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Director, Office of Resource Management August Monthly Operating Report Page 3 l
i ATTACHMENT III                                              l UNIT SHUTDOWNS AND POWER REDUCTIONS                                     I DOCKET NO.            50/395                    !
UNIT V. C. SUMMER I DATE      9/ 8/98                   1 COMPLETED BY W. H. BELL TELEPHONE      (803) 345-4389 AUGUST    1998 NO.       DATE TYPE DURATION REASON METHOD              CORRECTIVE ACTION / COMMENTS 2 7/25/98 F                0.0            A     4      "B" CIRCULATING WATER PUMP TRIPPED DUE TO A MOTOR FAULT; REPAIR MOTOR OFFSITE                       l l
1.0      REASON A: Equipment Failure B:-Maintenance or Test C: Refueling D: Regulatory Restriction E: Operator Training and License Examination                                            f' ;
F: Administrative                                                                          ,'
G: Operational Error                                                                    ,
5 H: Other (Explain)                                                                          !
2.0      METHOD 1: Manual                                                                                   j 2: Manual Scram                                                                             '
3: Automatic Scram 14: Continuation (Use initial Date) 5: Power Reduction (Duration 0.0)                                                           l
: 9. Other (Explain)

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                                                                                                        ]
Director,, Office of Resource Management
              '*~~ Au@ust Monthly. Operating Report Page 4 j
                                                                                                     -i ATTACEMENT IV NARRATIVE 

==SUMMARY==
OF OPERATING EXPERIENCE DOCKET NO.         50/395 UNIT V. C. SUMMER I DATE      9/ 8/98 COMPLETED BY W. H. BELL TELEPHONE   (803) 345-4389 AUGUST      1998
      / AT.THE-BEGINNING OF THE MONTH OF AUGUST THE PLANT WAS OPERATING AT 80% POWER DUE TO THE FAILURE OF THE "B" CIRCULATING WATER PUMP MOTOR.
FOR THE FIRST EIGHT DAYS OF.THE MONTH POWER WAS MAINTAINED AT BETWEEN.                          J 80% TO 85% IN ORDER TO REMAIN BELOW MAXIMUM ALLOWABLE CIRCULATING WATER DISCHARGE TEMPERATURE. AT 03:00 ON 8/9/98, THE "B" PUMP HAD BEEN REPAIRED AND OPERATIONS HAD COMMENCED RAISING REACTOR POWER.
POWER WAS RESTORED TO 100% AT 12:55 WHERE IT REMAINED FOR THE REMAINDER OF THE MONTH.
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MISCELLANEOUS OPERATING STATISTICS THRU August 1998 VIRGIL C SUMMER NUCLEAR STATION, UNIT 1 OPERATING STATUS Currently Authorized Power Level (MWt):       2900 Max. Depend. Capacity (MWe-Net):               954 Design Electrical Rating (MWe-Net):            963 Gross Maximum Capacity (MWe):                 1001 Gross Dependable Capacity (MWe) :              993 LIFE        FISCAL YEAR   12 MONTH   3 MONTH OF PLANT        TO DATE      TOTALS    TOTALS Number of Hours Reactor Critical            114004.5          1488.0       7870.7    2208.0 Reactor Reserve Shutdown Hours                    0.0             0.0 Hours Generator on Line                     112127.7          1488.0       7816.6    2208.0 Unit Reserve Shutdown Hours                       0.0             0.0 Gross Thermal Energy Generated CMWH)       293695574         4126297    21997722    6211957 Gross Electrical Energy (MWH)               98100409         1407990      7569720  2124920 Net Electrical Energy Generated 0MWH)       93476261         1352855      7282098  2042703 Reactor Service Factor                           82.4          100.0 Reactor Availability Factor                      82.4          100.0 Unit Service Factor                              81.0          100.0 Unit Availability Factor                         81.0          100.0         89.2     100.0 Unit Capacity Factor (Using MDC)                 75.6           95.3         87.3      97.0 Unit Capacity Factor (Design MWe)                74.4           94.4 Unit Forced Outage Rate                           4.2              0.0        1.5           ,
Forced Outage Hours                           4927.8               0.0      121.5       0.0 1 Scheduled Outage Hours                       21353.5               0.0      821.9       0.0 l Equipment Forced Outages:                                                       1         0 i Equivalent Unit Derated Hours
* 162.34     69.64 ,
Equivalent Seasonal Derated Hours
* 20.15     14.90 I Equivalent Availability Factor
* 87.1      96.2 I Equivalent Unit Derated Hours
* for Month:       36.7 Equivalent Seasonal Derated Bours* for Month:          7.5                                  i Equivalent Availability Factor
* for Month:       94.1
                                                                                                  ]
Equivalent Availability Factor
* for 36 months:        90.4                                 l Year-to-Date Equivalent Availability Factor *:        96.0 Equipment Forced Outages per 1000 Critical Bours:           0.127                           1 Equipment Forced Outages Year-to-Date:         1 Total Forced Outages Year-to-Date:       1                                                  j l
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* Based on INPO Detailed Descriptions of Overall Performance Indicators and Other Indicators - December 1987 l
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MONTH: AUGUST 1998 HOURS GENERATOR ON LINE: 744 UNIT AVAILABILITY FACTOR: 100%
V. C. SUMMER, UNIT 1 MONTHLY OUTAGE REPORT FOR AUGUST 1998 OUTAGE !      START ! END     !   HOURS 1 TYPE! REASON FOR OUTAGE ! CORRECTIVE ACTION NO.    !   TIME  i TIME    ! DURATION!     !                   !
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