ML19321A035

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Monthly Operating Rept for June 1980
ML19321A035
Person / Time
Site: Sequoyah 
Issue date: 07/02/1980
From: Walker F
TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML19321A033 List:
References
NUDOCS 8007220360
Download: ML19321A035 (9)
v • d • e


Text

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TENNESSEE VALI2Y AUTHORITY DIVISION OF NUCLEAR P0kIR SEQUOYAH NUCLEAR PLANT f

MONTHLY OPERATING REPORT JUNE 1, 1980 - JUNE 30, 1980 4

m.

DOCKET NUMBER 50-327 LICENSE NUMBER DPR-77 4

d Submitted By.' thd/

0h ILLit Plant}uperintendent I

a

.8007220360

TABLE OF CONTENTS Operations Summary.

.1 Significant Operational Events.....................

2 Average Daily Unit Power Level.....................

3 Operating Data Report

.4 Unit Shutdown and Power Reduction

.5 i

Plant Maintenance Summary

.6 Outage Maintenance Summary..........

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Operations Summary June 1980 The following sumary describes the significant operational activities during the reporting period. In support of this summary, a chronological log of significant events is included in this report.

There were twenty-five Licensee Event Reports submitted to the NRC during the month of June.

During the month, heatup to normal operating pressure and temperature i

was completed. The reactor coolant system was at 547*F and 2235 psig at the end of June.

An inadvertant SI signal occurred on 6-17-80, however, no water was injected into the core. A second inadvertant SI signal on 6-23-80 did

- inject water into the core. This SI happened when the operator opened the main steam isolation valves. A high steam flow-lo-lo Tavg signal caused the SI.

A break of an air line to a steam dump resulted in dropping reactor coolant system pressure and temperature to 2090 psig and 520*F.

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Significant Operational Events Date Event 6/17/80 An inadvertant SI signal was actuated.

No water was injected into the reactor Core.

6/21/80 RCS in Mode 4 6/22/80 RCS in Mode 3 6/23/80 An inadvertant SI signal was actuated with full safety injection.

6/24/80 RCS pressure and temperature was 2235 psig and 547 F.

6/24/80 RCS pressure and temperature dropped to 2090 psig and 520 F due to air line being broken to steam dump valve and one or more valves failing open, i

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-327 UNIT 1

DATE 7/2/80 COMPLETED BY Frank M. Walker TELEPHONE (615) 842-0295 MONTH June 1980 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1MWe Net) 1 0

17 0

2 0

Is 0

3,.

0 19 0

4 0

20 0

5 0

1 0

6 0

22 0

7 0

23 0

8 0

4 0

9 0

25 0

i 10 0

26 0

.i i1 0

27 0-12' 0

0 28 13 0

29 0

14 0

30 0

15 0

0 3i 16 0

i INSTRUCTIONS

~~

On this format.!ist the average daily unit power leselin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.

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l OPERATING DATA REPORT

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DOCKET NO.

50-327 DATE 7-2-80 COMPLETED BY Frank M. Walker TELEPHONE (615) 842-0295 OPERATING STATUS

1. Unit Name:

Sequoyah 1 Notes

2. Reporting Period:

3""* 1980

3. Licensed Thermal Power (MWt):

170a 4.. Nameplate Rating (Gross MWe):

1220.5

-5. Design Electrical Rating (Net MWe):

1148

6. Maximum Dependable Capacity (Gross MWe):

1185

7. Maximum Dependable Capacity (Net MWe):

1148

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:

4

9. Power Level To Which Restricted.If Any (Net MWe):
10. Reasons For Restrictions. If Any.

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i This Month Yr..to.Date Cumulative

- 11.~ Hours in Reporting Period 720 2928 2928

12. Number Of Hours Reactor Was Critical 0

0 0

13. Reactor Reserve Shutdown Hours 0

0

-0.

I'4. Hours Generator On.Line 0

0 0

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15. Unit Reserve Shutdown flours -

0 0

0 f

16. Gross Thermal Energy Generated (MWH) 0 0

0 17.' Gross Electrical Energy Generated (MWH) 0 0

0

- 18. Net Electrical Energy Generated (MWH) 0 0

0 4

19. Unit Service Factor N/A N/A N/A
20. Unit Availability Factor N/A N/A N/A j
21. Unit Capacity Factor (Using MDC Net).

N/A -

N/A N/A.

22. Unit Capacity Factor (Using DER Net)-

N/A N/A N/A l

23. Unit Forced Outage Rate N/A N/A N/A

' 24.' Shutdowns Scheduled Over Next 6 Months (T)pc. Date, and burstion of Each):

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25. If Shut Down At End Of Report Period, Estimated Date of Startup:
26. Units in Test Status (Prior to Commercial Operation):

' Forecast

- Achieved INITIAL CRITICALITY 7-4-80 i-clNITIA L ELECTRICITY 8-21-80 COMMERCIAL OPERATION 10-3-30

  • 5% Low Power Testing License'.

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Plant Maintenance Summary 4

Staking of the component cooling heat exchanger "A" tubes was com-pleted during June. This modification was made to reduce the tube vibration.

Removable vent piping hangers were installed on safety injection pumps IA-A and IB-B per work plan number 8664.

i The oil lift system of reactor coolant pump motor #2 was repaired.

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Outage Maintenance Summary i

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l Inspected pipe hangers on safety relsted systems inside and outside I

containment in.accordance with a conformation of action letter from NRC and IE bulletin 79-14.

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