ML20043H065

Monthly Operating Repts for May 1990 for Sequoyah Nuclear Plant.W/900615 Ltr

ML20043H065
Person / Time
Site:	Sequoyah
Issue date:	05/31/1990
From:	Hollomon T, Wallace W TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9006210524
Download: ML20043H065 (9)

Text

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TENNESSEE. VALLEY AUTHORITY l

SN 157B Lookout Place-June 15, 1990 l

l U.S. Nuclear Regulatory Commission

! ATTN: Document Control Desk Washington, D.C. 20555

. Gentlemen:.

In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 SEQUOYAH NUCLEAR PLANT (SQN) - MAY 1990 MONTHLY OPERATING REPORT Enclosed is the May 1990 Monthly Operating Report as required by SQN Technical.

Specification 6.9.1.10.

1 I If you have any questions concerning this matter, please call Bruce S. Schofield at (615) 843-6172.

Very truly yours, i.

TENNESSEE VALLEY AUTHORITY.

N], , /----- -

E. G. Wallace Manager Nuclear Licensing and 'i Regulatory Affairs

' Enclosure cc (Enclosure):-

INPO Records Center Regional Administration Institute of Nuclear Power Operations U.S. Nucitar Regulatory Commission.

'1100. Circle 75 Parkway, Suite 1500 Office of Inspection and Enforcement Atlanta, Georgia 30389 Region II 101 Marietta Street, NW, Suite 2900 Mr. B. D. Liaw, Directc Atlanta, Georgia 30323 TVA-Projects Division One White Flint, North Mr. B. A. Wilson, Chief 11555 Rockville Pike of TVA Projects Rockville, Maryland 20852 U. S. Nuclear Regulatory Commission Region II Mr. Ted Marston, Director 101 Marietta Street, NW, Suite 2900' Electric Power Research' Institute Atlanta, Georgia 30323 P.O. Box 10412 Palo Alto, California 94304 NRC Resident Inspector Sequoyah Nuclear Plant t' 2600 Igou. Ferry Road Soddy Daisy, Tennessee 37379 9006210524 900531_, '

p>DR ADOCKOS00g_e (

, R , i An Equal Opportunity Employer

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TENNESSEE VALLEY AUTHORITY I NUCLEAR POWER GROUP SEQUOYAH NUCLEAR PLANT MONTHLY OPERATING REPORT TO THE NUCLEAR REGULATORY COMMISSION MAY 1990 i

UNil 1 DOCKET NUMBER 50-327 LICENSE NUMBER OPR-77 UNIT 2- -!

DOCKET NUMBER 50-328 LICENSE NUMBER OPR-79 i Lu.

-4 3_-

e OPERATIONAL

SUMMARY

MAY 1990 ,

UNIT 1 Unit i entered its Cycle 4 refueling outage on March 17, 1990. The outage ,

continued throughout the month of May, with Unit 1 in Mode 5 at the beginning of.the month. Unit 1 entered Mode _4 on May 22,1990, at 1553 (EDT) and entered Mode 3 on May 24, 1990, at 2308 (EDT). Unit I was forced to reenter Mode 4 on May 28,1990, at 2155 (EDT) for the replacement of check valve 1-VLV-63-551, which exceeded the acceptance criteria leakage of 1.0 gpm extrapolated to full RCS pressure. The valve was leaking at approximately

- 1.6 gpm. After replacement of the check valve, Unit I reentered Mode 3 on May 30, 1990, at 0720 (EDT). The unit reached criticallity and entered Mode 2 at 1033 (EDT) on May 31, 1990, and-rema'ned in Mode 2 through the end of May.

1 UNIT 2  ;

Unit 2 generated 868,380 MWh (gross) electrical power during May, with a

- capacity factor of 98.66 percent. Unit 2 operated at approximately

-100 percent reactor power level the entire month of May.

POWER-0PERATED RELIEF VALVES (PORVs) AND SAFETY VALVES

SUMMARY

There were no challenges to PORVs or safety valves in the month of-May.

OFFSITE DOSE CALCULATION MANUAL (0DCM) CHANGES There were no changes to the 00CM during_the month of May.

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'i AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-327 UNIT One

,j DATE 06-02-90 i

COMPLETED BY T. J. Hollomon  !

<l TELEPHONE (615) 843-7528 1 MONTH MAY 1990  ;

' DAY AVERACE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL I (MWe-Net) (MWe-Wet) 1 - 2- 17 - S 2' - 2= 18 - 2 3 -- 2 19 - 7  !

.j 4 - 2 20 - 5 ,

5- - 2 21 - 5 i 6 - 2 22 - '7 ,

7 - 1- 23 ,

-8 -

2- 24 - 14 9 - 2 25 --14 1

10 - 3 26 - 16 ,  !

i 11 - 2 27 - 14

-12

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2 28 - 14 13 - 7 29. - 19 i

'14

- 2 30 - 14

{ 15 - 2 31 - 14 16 - 7 1520f'

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-328 Unit Two t DATE 06-02-90 COMPLETED BY T. J. Hollomon TELEPHONE (615) 843-7528

' MONTH MAY 1990 g DAY ' AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

'(MWe-Net) (MWe-Net)-

1 1130 17 1129 ,

2 1128 18 1127 3 1128 19 1127 4 1126 20 1127

-5 -1124 21 1126 6 1124 22' 1123 ,

7' 1124 23: ___

1125 8- 1123 24 1125 9 1124 25 1127 10- 1123 26 1127  !

11 1123 27 1126' 12 1132' 28 1127

~13 1131 29 ~1126

~14- 1132 30 1110 15' 1131 31 1126

'16 1130

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_ g OPERAllNG DATA REPORT DOCKET NO. 50-327 DATE May 1. 1990 COMPLETED BY T. J. Hollomon 1ELEPHONE (615) 843-7528 DPERATING STATUS l Notes l '

1. Unit Name: Seouoyah Unit One _

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2. Reporting Period: May 1990

3. Licensed Thermal Power (MWt): 3411.0 l

4. Nameplate Rating (Gross MWe): _1220.6 l l S. Design Electrical Rating (Not MWe): 1148.0 l l

6. Maximum Dependable Capacity (Gross MWe): 1183.0 l l

7. Maximum Dependable Capacity (Net MWe): 1148.0 l l

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

N/A

9. Power level To Which Restricted, if Any (Net MWe): N/A

10. Reasons For Restrictions, if Any: N/A f

This Month Yr-to-Date Cunulative

11. Hours in Reporting Period 744 3.623 78.168 ,

12. Number of Hours Reactor Was Critical 13.5 1.816.7. 35.312 I

13. Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 0.0 1.803.0 34.492.4

15. Unit Reserve Shutdown Hours 0.0 0 0

16. Gross Thermal Energy Generated (MWH) 0.0 5.839.530.2 112.175.410

17. Gross Electrical Energy Generated (MWH) 0 ___2.026.980 38.050.736

, .18. NJt Electrical Energy Generated (MWH) - 5.149 1.952.251 ____26.424.280

19. Unit Service Factor 0.0 49.8 44.1

20. Unit Availability Factor 0.0 49.8 44.1

21. Unit Capacity Factor (Using MDC Net) 0.0 46.9 40.6

22. Unit-Capacity Factor (Using DER Net) 0.0 46.9 40.6

23. Unit Forced Outage Rate 0.0 0.0 48.0

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

25. If Shut Down At End Of Report Period, Estimated Date of Startup: June 1. 1990

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OPERA 11NG DATA REPORT DOCKET NO. 50-328 DATE May 1. 1990 COMPLETED BY T. J. Hollomon 1ELEPHONE (615) 843-7528 l

OPERATING STATUS l Notes l

1. Unit Name: Soauoyah Unit Two l. l.

2. Reporting Period:- May 1990 .l l

3. Licensed Thennal Power (Wt): .3411.0 l l  !

~4. Nameplate Rating (Gross We): 1220.6 l l S. Design Electrical Rating (Net MWe): 1148.0 l l

- 6. Maximum Dependabic Capacity (Gross MWe): 1183.0 l l

7. Maximum Dependable Capacity (Ne; MWe): 1149.0 l l

8. If Changes occur in capacity Ratings (items Number 3 Through 7) Since Last Report, Give Reasons:

N/A ,

9. Power Level To Which Restricted, if Any (Net MWe): N/A

10. Reasons For Restrictions, If Any: N/A L

This Month Yr-to-Date Cunnlative T

11. Hours in Reporting Period 744 3.623 70.120

<12.' Number of Hours Reactor Was Critical 744,0 3.595.9 37.126-

13. Reactor Reserve Shutdown Hours 0 ,,,,, O. 0

14. Hours Generator.On-Line 744.0 3.584.4 '36.280.2

15. Unit Reserve Shutdown Hours 0.0 0 0

16. Gross Thennal Energy. Generated (MWH) 2.509.823.5 11.900.128.0 112.310.388 ,

17; Gross Electrical Energy Generated (MWH) 868.380 4.102.010 38,122.8 %

~18.' Net Electrical Energy Generated (MWH) 832.122 3.953.395 36.401.729 119. Unit Service Factor 100.0 98.9 51.7

-20. Unit Availability Factor- 100.0 98.9 51.7

21. Unit Capacity Factor (Using MDC Net) 97.4 95.1 45.2 22.'. Unit Capacity Factor (Using DER Net) 97.4 95.1 45.2

-23. Unit Forced Outage Rate 0.0 1.1 42.5

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

Unit 2 Cycle 4 refuelina outaae is scheduled for Septenber 1990 with a duration of 70 days.

25. If Shut Down~At End Of Report Period, Estimated Date of Startup: N/A  ;

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DOCKET NO: 50-327

• UNIT SHUID0lffS AND POWER REDUCTIONS UNIT MRME: One DATE: Ub/US/90 REPORT MONTH: May 1990 COMPLETED BY:T. J. Hollamon TELEPHONE:(615) 843-1 g Method of Licensee Cause and Corrective Duration Shutting Down Event Systp nt Action to No. Date'- Type l (Hours). Reason 2- Reactor 3 Report No.' Code Prevent Recurrence -

2 900317 S- 1820.02 C 1 Unit 1 Cycle 4 refueling outage continues.

I:F Forced 2 Reason: 3 Method; hhibitG-Instructions 5: Scheduled A-Equipment Failure (Explain)- 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restruction 4-Continuation of Existing Outage (NUREG-061)

E-Operator Training and License Examination 5-Reduction F-Administrative 9-Other G-Op? rational Error (Explain) SExhibit I-Same Source H-Other (Explain)

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1 4-DOCKET No: 50-328~

tMIT SHUTD0lMS AND POER REDUCTIONS UNIT L%ME: Two DATE: 06/05/90 REPORT MONTH: 'May 1990 COPFLETED BY:T. J. Hollomon TELEPHONE:(615) 843-7528 Method of Licensee Cause and Corrective

-Duration Shutting Down Event Systp t Action to No. Date Type '

l (Hours) Reason 2 Reactor 3 Report No. Code Prevent Recurrence No outage or power reducitons during the month. Unit operated at approximately.

100 percent power level the entire month.

I:F Forced 2 Reason: 3Method: hhlbitG-Instructions 5: Scheduled A-Equipment Failure (Explain) 1-Manual 'for P ration of Data B-Maintenance or Test 2-Manual Scram Entry s is for Licensee C-Refueling 3-Automatic Scram Event t (LER) File D-Regulatory Restruction 4-Continuation of Existing Outage (NURE 1)

E-Operator Training and License Exanination 5-Reduction F-Adninistrative 9-Other G-Operational Error (Explain) SE xhibit I-Same Source H-Other (Explain)

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