ML20154H609

Monthly Operating Repts for Sept 1998 for Sequoyah Nuclear Plant,Units 1 & 2.With

ML20154H609
Person / Time
Site:	Sequoyah
Issue date:	09/30/1998
From:	Holloman T, Salas S TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9810140268
Download: ML20154H609 (10)

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Tennessee Valley Authority, Post Omce Box 2000. Soddy-Daisy, Tennessee 37370-2000 October 8, 1998 l

1 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) - SEPTEMBER MONTHLY OPERATING REPORT The enclosure provides the September Monthly Operating Report as required by SQN Technical Specifications Section 6.9.1.10.

If you have any questions concerning this matter, please call me at (423) 843-7170 or J. D. Smith at (423) 843-6672.

Sincerely, e as Licensing and Industry Affairs Manager Enclosure i cc: See page 2 \

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o 9810140268 900930 PDR ADOCK 05000327 R PDR ,,

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U.S. Nuclear Regulatory Commission Pag.e 2

• October 8, 1998 '

i JDS:JWP:PMB cc (Enclosure):  ;

Mr. R. W. Hernan, Senior Project Manager U.S. Nuclear Regulatory Commission i One White Flint, North '

11555 Rockville Pike Rockville, Maryland 20852-2739 INPO Records Center Institute of Nuclear Power Operations 700 Galleria Parkway

. Atlanta, Georgia 30339-5947 Ms. Barbara Lewis, Assistant Editor, Database  ;

McGraw-Hill, Inc.

'1200 G Street, NW, Suite 1100 j Washington, D.C. 20005  :

Mr. JamesLLang, Manager Advanced Reactor Department Electric Power Research. Institute 3340 Hillview Avenue Palo Alto,. California 94304 NRC Resident Inspector Sequoyah Nuclear Plant- 4 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 i Regional Administrator  !

U.S. Nuclear Regulatory Commission Region II' Atlanta Federal Center j 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-3415 l l

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. i ENCLOSURE TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT (SQN) 1 MONTHLY OPERATING REPORT SEPTEMBER 1998 l

UNIT 1 l

DOCKET NUMBER 50-327 l LICENSE NUMBER DPR-77 l UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79 l

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OPERATIONAL

SUMMARY

J SEPTEMBER 1998 I.. SEQUOYAH OPERATIONAL

SUMMARY

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l UNIT 1 i Unit 1 generated 181,506 megawatthours (MWh) (gross)

electrical power during September with a capacity factor  !

of 21.71 percent. Unit 1 was removed from service on  !

September 9, 1998, at 0100 Eastern Daylight time (EDT) for i the Cycle 9 refueling outage. Core offload began on September 16 at 0021 EDT and core reload was completed on September 25 at 0950 EDT. Unit 1 remained in Mode 5 at the end of September.

UNIT 2 Unit 2 generated 827,933 MWh (gross) electrical power j during September with a capacity factor of 99.5 percent. ,

, There were no outages or power reductions of greater than l 20 percent in the average daily power level during l

September. Unit 2 was operating at 100 percent at the end of September.

t II. CHALLENGES TO THE PRESSURIZER POWER-OPERATED RELIEF VALVES l (PORVs) OR PRESSURIZER SAFETY VALVES l No PORVs or safety valves were challenged in September.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-327 UNIT NO. ONE DATE: October 2, 1998 COMPLETED BY: Tanya J. Hollomon ' TELEPHONE : (423) 843-7528 MONTH: SEPTEMBER 1998 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (MWe-Net) DAY (MWe-Net)

1. 941 17. 0

'2. 933 18. 0

3. 925 19. 0

4. 925 20. 0

5. 917 21. 0

6. 905 22. 0

7. 899 23. 0

8. 823 24. 0

9. 0 25. 0

10. 0 26. 0

11. 0 27. 0 12 0 28. 0

13. 0 29. 0

14. 0 30. 0

15. 0 31. NA

16. 0 l

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AVERAGE DAILY UNIT POWER LEVEL .

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DOCKET NO. 50-328 UNIT NO. TWO DATE: October 2, 1998-COMPLETED BY: Tanya J. Hollomon TELEPHONE: (423) 843-7528 l

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l AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL i

DAY (MWe-Net) DAY (MWe-Net)

1. 1105 17. -

1117 1

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2. 1109 18. 1114 l l

3. 1108 19. 1122

4. 1114 20. 1123

5. 1114 22. 1119 .

6. 1114 22. 1120 l i

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7. 1109 23. 1118 i

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8. 1114 24. 1120 i 1

9. 1116 25. 1122

.10. 1117 26. 1123 11, 1129 27. 1124 12 1126 28. 1121 l 13. 1128 29. 1126

14. 1128 30. 1127 l 15. 1121 31. NA l

j .16. 1123 l.

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OPERATING DATA REPORT Docket No. 50-327 Date: October 2,1998 Completed By: T. J. Hollomon i Telephone: (423) 843-7528 ,

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1. Unit Name: SQN Unit 1  ;

2. Reporting Period. September 1998

3. Licensed Thermal Power (MWt): 3411.0 l

4. Nameplate Rating (Gross Mwe): 1220.6  !

5. Design Electrical Rating (Net Mwe): 1148.0  ;

l 6. Maximum Dependable Capacity (Gross MWe): 1161 i I

7. Maximum Dependable Capac;ty (Net MWe): 1122

8. If changes Occur in Capacity Rating (Item Numbers 3 & 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 This Month Yr-to-Date Cumulative

11. Hours in Repmtmg Period 720 6,551 151,224 12; Nuinber of Hours Reactor was Critical 193.0 5,992.3 90.848

13. Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 193.0 5,977.8 .89,037.4

15. Unit Reserve Shutdown Hours 0.0 0 0

16. Gross Thermal Energy Generated (MWh) 532,683.9 20,070,090.0 291.314,085 1

17. Gross Electric Energy Generated (MWh) 181,506 6,928,532 99,329,659 l

18. Net Electrical Energy Generated (MWh) 171,570 6,702,380 95,402,277

19. Unit Service Factor 26.8 91.3 58.9

20. Unit Availability Factor 26.8 91.3 58.9 j l 21. Unit Capacity Factor (Using MDC Net) 21.2 91.2 56.2 l

22. Unit Capacity Factor (Using DER Net) 20.8 89.1 55.0 l

'23. Unit Forced Outage Rate 0.0 0.8 28.7 l l

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): Unit 1 Cycle 9 refuelmg i outage started September 9.1998.

25. If Shutdown at End of Report Period, Estimate Date of Startup. October 8.1998 l

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I OPERATING DATA REPORT I

Docket No. 50-328 Date: October 2,1998 Completed By: T. J. Hollomon Telephone: (423) 843-7528

1. Unit Name: SON Unit 2

2. Reporting Period: September 1998

3. Licensed Thermal Power (MWt): 3411.0

4. Nameplate Rating (Gross Mwe): 1220.6

5. Design Electrical Rating (Net Mwe): 1148.0

6. Maximum Dependable Capacity (Gross MWe): 1156 1

7. Maximum Dependable Capacity (Net MWe): 1117

8. If changes Occur in Capacity Rating (Item Numbers ' t 7) Since Last Report, Give Reasons: N/A l

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 Cumulative

11. Hours in Reponing Period 720 6,551 143,184

12. Number of Hours Reactor was Critical 720 6,483.9 94,139

13. Reactor Reserve Shutdown Hours 0 0 0

14. Hours Gener .nr On-Line 720.0 6,473.9 92,148.4 l

15. Unit Re- "'au, s 'wn Hours 0.0 0 0

16. Gross Tnennal Energ/ Generated (MWh) 2,453,376.0 22,017,779.2 295,995,116

17. Gross Electric Energy Generated (MWh) 827,933 7,547,205 100,772,569

18. Net Electrical Energy Generated (MWh) 803,373 7,321,213 96,726,575

19. Unit Senice Factor 100.0 98.8 64.4

20. Unit Availability Factor 100.0 98.8 64.4

21. Unit Capacity Factor (Using MDC Net) 99.9 100.1 60.5

22. Unit Capacity Factor (Using DER Net) 97.2 97.3 58.8

23. Unit Forced Outage Rate 0.0 1.2 27.8 l

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

25. If Shutdown at End of Report Period, Estimate Date of Startup. N/A 1

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UNIT SHUTDOWNS AND POWER REDUCTIONS

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REPORT MONTH: SEPTEMBER 1998 DOCKET NO: 50-327' UNIT NAME: SQN-1 DATE: October 2,1998 COMPLETED BY: T. J. Hollomon-TELEPHONE: (423) 843-7528 No,? Date: - Type'. ~Durafim Reason Method oD IJe===as Systems .Comepomaat Cause and Correedve Action to Prevent ~

8 96 .y j7 , Shutthag's Event Report l Code *f $ ode'd Recurrence x ' ?~g  :'1 "2

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._ mi f 2 980909 ,S 527.0 C 1 N/A N/A N/A Unit 1 Cycle 9 refueling outage began on September 9, 1998 at 0100 EDT. Unit 1 was in Mode 5 at the end of September.

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' F: Force Reason: ' Method

• Exhibit G - Instructions for (NUREG S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data Entry sheets B-Maintenance or Test 2-Manual Scram for Licensee Event Report (LER)

C-Refueling 3-Automatic Scram File - NUREG - 1022 D-Regulatory Restriction 4-Continuation of Existing E-Operator Training and License Outage 5

Examination 5-Reduction Exhibit I-Same Source F-Administrative 9-Other G-Operational Error (Explain)

II- Other(Explain)

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UNIT SHUTDOWNS AND POWER REDUCTIONS '

REPORT MONTH: SEPTEMBER 1998 DOCKET NO: 50-328 UNIT NAME: SQN-2 DATE: October 2,1998 COMPLETED BY: T.1 Hollomon-TELEPHONE: (423) 843-7528 2-No. Date .- Type ( Duration . Reason Method of Licensee System Component .Cause and Corrective Action (9 Prevent --

d 5 (Hours) . Shutting; Event Repo.rt-- Code Code Recurrence l Down .. No. .

Reactor' There were no outages or power reductions of greater than 20 percent in the average daily power level during September.

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' F: Force Reason: ' Method

• Exhibit G - Instnictions for (NUREG S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data Entry sheets B-Maintenance or Test 2-Manual Scram for Licensee Event Report (LER)

C-Refueling 3-Automatic Scram File - NUREG - 1022 D-Regulatory Restriction 4-Continuation of Existing E-Operator Training and License Outage Examination 5-Reduction

• Exhibit I-Same Source F-Administrative 9-Other G-Operational Error (Explain)

H- Other (Explain)

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