ML20091K747

Monthly Operating Rept for Apr 1984

ML20091K747
Person / Time
Site:	Summer
Issue date:	04/30/1984
From:	Dixon O, Loignon G SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8406070188
Download: ML20091K747 (6)

Text

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Director, Office of Resource. Management Apri?. Monthly Operating Report Page 2 May 15,.1984 ATTACHMENT I AVERAGE DAILY UNIT POWER LEVEL DOCKET'NO.

50/395 UNIT V.

C.

SUMMER I DATE 05/14/83 COMPLETED BY G.

A.

Loignon TELEPHONE (803) 345-5209 MONTH APRIL 1984 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Ne t) 1.

-5 17.

-9 2.

-6 18.

-12 3.

-5 19.

-19 4.

-5 20.

-27 5.

-6 21.

-31 6.

-6 22.

-11 7.

-6 23, 515 8.

-8 24.

878 9.

-8 25.

73 10.

-6 26.

-31 11.

-8 27.

-17 12.

-5 28.

-20 1

13.

-13 29.

-30 f

14.

-10 30.

-32 15.

-10 31.

N/A 16.

-10 8406070188 840430 L

PDR ADOCK 05000395 l

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Director, Office of Resource Management April Monthly Operating Report Page 3 May 15, 1984 ATDCHMENT II OPERATING DATA REPORT DOCKET NO.

50/395 UNIT V. C. SLMER I DATE 05/14/84 COWIETED BY G. A. Icignon TELEPHONE (803) 345-5209 OPERATING STA'IUS

1. Reporting Period:

APRIL 1984 Gross Hours in Reporting Period: 719

2. Currently Authorized Power Ievel (MWt):

2775 Max. Depend. Capacity (M6e-Net):

_885 Design Electrical Rating (MNe-Net):

900

3. Power Ievel to which restricted (If Any)(Mie-Net): N/A

4. Pm anris for Restrictions (If Any): N/A-

'IHIS lONTH YR 'IO DATE C[MJIATIVE

5. Number of Hours Reactor Was Critical 102.2 2,012.5 9,347.'3

6. Reactor Reserve Shutdom Hours 0

0 0

7. Hours Generator on Line 53.3 1,929.0 8,928.4

8. Unit Reserve Shutdown Hours 0

0 0

9. Gross 'Ihermal Ehergy Generated (MfH) 119,028 5,242,015 19,852,550

10. Gross Electrical Energy Generated (MGH) 38,040 1,751,270 6,531,780

11. Net _ Electrical Ehergy Generated (MfH) 26,527 1,666,659 6,159,435

12. Reactor Service Factor 14.2 69.3 69.3

- 13. Reactor Availability Factor 14.2 69.3 69.3

14. Unit Service Factor 7.4 66.4 66.4

15. Unit Availability Factor 7.4 66.4 66.4 16.-Unit Capacity Factor-(Using IOC) 4.2 64.9 64.9 1

17. Unit Capacity Factor (Using Design MWe) 4.1 63.8 63.8

'~

18.~ Unit Forced Outage Rate 72.5 10.9 10.9

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

Refueling,' Septaber 15, 1984, 60 Days.

20. If Shut Down at End of Report Period, Estimated Date of Startup: May 3, 1984

21. Units in Test Status (Prior to Comrerical Operation):.

EORECAST ACHIEVED 2

Initial Criticality N/A 10-22-82 Initial Electricity N/A 11-16-82 Consnercial Operation N/A 01-01-84 I

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r Director, Office of Resource Management April Monthly Operating Report Page 4 May 15, 1984 ATTACHMENT II.A CHANGES TO ATTACHMENT II FROM PREVIOUS REPORTS The bases for the following lines have been changed to comply with current instructions; the April report contains the revised information:

Line'5, Cumulative:

hours have been reduced to reflect only those hours since initial electrical power generation.

Previously, reports included time from initial crticality to initial power generation.

Line 7, Year to Date:

hours were reduced by 0.6 to correct mathematical error.

Cumulative:

hours were reduced by 0.1 to correct mathematical error.

Line 9, Cumulative:

thermal energy was reduced to remove energy produced prior to initial electrical generation and to correct mathematical errors.

Previously, reports included time from initial criticality to initial power generation.

.Line 10, Year to Date and Cumulative:

gross electrical energy was recalculated based on beginning and end of month meter readings and corrected for mathematical errors.

Previous reports utilized daily meter readings.

Line 11, Year to Date and Cumulative:

net electrical energy was recalculated to include negative figures during periods when the generator was offline.

Previous reports recorded 0 when the generator was offline.

Lines 12-18, Year to Date and Cumulative:

numbers were changed to j

reflect the above changes.

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l-x Director, Office of Rescurce Management April Monthly Operating Report Pacs 5 May 15, 1984 ATDCHMENT III UNIT SHUIDOWS AND POWER REDUCTIONS DOCKET NO.

50/395 UNIT V. C. SUMER I DATE 05/14/83 00N LETED BY G. A. Icignon TELEPHONE (803) 345-5209 (1) METHOD OF (2)

TYPE SHUTTING DOW F: FORCED DTATION THE REACTOR OF CORRBCTIVE ACTIONS /

NO.

DATE S:SCHEDULEI (HOURS)

REASOb REDUCING POWEB COMENTS 4

840323 S

525.5 B

4

4) Sprirg Maintenance Outage continued frcm previcus month.

5 840425 F

140.2 A

3

5) Turbine Trip frcm Thrust Bearing Wear Detector.

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.e Director, Of fice of Resource Management April Monthly Operating Report Page-6 May 15,-1984 ATTACHMENT IV NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE The Virgil C.

Summer Nuclear Station, Unit No. 1, was shut down for a' scheduled maintenance outage until April 22, 1984.

Major work performed during this outage consisted of ceactor coolant pump seal repair, rod drop time test, snubber inspections, and leak rate testing.

On April 18, 1984, a pressure spike occurred in the Reactor Coolant System when a reactor coolant pump was started.

The 550 psig spike was less than Technical Specification allowable limits.

During the transient condition, pressurizer power operated relief valve (PORV) 444B lifted due.to rate sensitivity.

-On April 25, 1984, at 0247 hours0.00286 days <br />0.0686 hours <br />4.083995e-4 weeks <br />9.39835e-5 months <br />, a reactor trip occurred from 100%

power.

The main turbine thrust bearing wear detector was being reconnected after power ascension; when the connection was made, the turbine tripped causing a reactor trip.

No thrust bearing wear problem existed.

While shut down, the main condenser was examined for leaking tubes, and repairs were made to the condenser.

During the subsequent plant startup, the main turbine tripped due to low shaft pump discharge pressure while the turbine was being rolled up to speed; this resulted in a reactot-trip from 11% power.

On April 30, 1984, the plant-was shut down.

Work was underway to start the plant up during the first week of May.

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SOUTH CAROLINA ELECTRIC & GAS COMPANY

1. 05' 08 FiCE 764 COLweiA SouTM CaRouNA 29218 OW D mon, Jn.

V#CE Pe.*.C r Nt

- NuctE An CPER A'rONS May 15, 1984 Director, Office of Resource Management U.S. Nuclear Regulatory Commission MNBB'7602 Washingtoa,-DC 20555 ATTN:

Mr. Learned W.

Barry

SUBJECT:

Virgil C.

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

Dear Mr. Barry:

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

Changes to Attachment II from previous reports are explained on Attachment II.A, Page 4.

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

Very tru.

yours, f

O. W. Dixo Jr.

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.

Hehl J.

P.

O'Reilly J.

B.

Knotts, Jr.

Group Managers INPO Records Center D.

A.

Nauman ANI Library O.

S.

Bradham NPCF File

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