ML20069A129

Monthly Operating Repts for Apr 1994 for Sequoyah Nuclear Plant

ML20069A129
Person / Time
Site:	Sequoyah
Issue date:	04/30/1994
From:	Hollomon T, Powers K TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9405240272
Download: ML20069A129 (10)

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Temessee Valley Autrymty, Post Ofhce Ek1x 2'J00. fRxkt/ On,, Tumssee37379 2000 Ken Powers vee Presakvt senryan Ntekair Piar:t May 16, 1994 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) - APRIL 1994 MONTHLY OPERATING REPORT Enclosed is the April 1994 Monthly Operating Report as required by SQN Technical Specification 6.9.1.10.

If you have any questions concerning this matter, please call J. W. Proffitt at (615) 843-6651.

Sincere y, i

Ken Powers Enclosure cc: See page 2 ,

25000D PR }

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t U.S. Nuclear Regulatory Commission Page 2 May 16, 1994 cc (Enclosure):

INP0 Records Center Institute of Nuclear Power Operations 700 Galleria Parkway Atlanta, Georgia 30339-5957 Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Ted Marston, Director Electric Power Research' Institute P.O. Box 10412 Palo Alto, California 94304 NRC Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 Regional Administration U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323-2711 Regional Administrator U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323-2711 Mr. F. Yost Director Research Services Utility Data Institute 1200 G Street, NW, Suite 250 Washington, D.C. 20005 i

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TENNESSEE VALLEY AUTHORITY NUCLEAR. POWER GROUP SEQUOYAH NUCLEAR PIANT MONTHLY OPERATING REPORT.

.1U THE

, , NUCIEAR REGULATORY C0fftISSION APRIL 1994 UNIT 1

, DOCKET NUMBER 50-327 LICENSE NUMBER DPR-77 UNIT 2

" DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79

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,. OPERATIONAL

SUMMARY

APRIL 1994 URIL1 Unit 1 generated 119,390 megawatthours (MWh) (gross) electrical power during April with a capacity factor of 14.4 percent. Unit 1 was in Mode 3 at the beginning of the month. The reactor was taken critical on April 13 at 1123 EDT. The Unit 1 Cycle 6 Refueling Outage ended on April 20 at 0338 EDT when the generator was synchronized to the grid. On April 27 at 1027 EDT, with reactor power at approximately 74 percent, a power decrease was initiated to allow the IB main feed pump to be removed from service for repairs. Unit I was operating at approximately 48 percent reactor power at the end of April.

UNIT 2 Unit 2 generated 842,987 megawatthours (MWh) (gross) electrical power during April with a capacity factor of 102.3 percent. Unit 2 operated at near 100 percent reactor power during the month of April.

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1 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. __10-327 UNIT No. __One DATE: _05-01-94 COMPLETED BY: L J. !!allomon TELEPHONE: 1615) 843-7528 MONTH: _AERIL 1994 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DAY (W.e-Eet) DAY (M e-Net) 1 -14 17 -16 2 -14 18 -14 3 -15 19 -16 4 -16 20 156 5 -14 21 237 6 -14. 22 248 7 -16 23 246 8 -16 24 313 9 -14 25 632 10 -14 26 738 11 -1_4 27 620 12 -16 28 475 13 -1B 29 468 14 -14 30 100 15 -16 31 N/A 16 -14 l

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l AVERACE DAILY UNIT POWER IEVEL DOCKET NO. 50-328 UNIT No. Two DATE: 05-01-94 COMPLETED BY: L__J _.llollomon TELEPHONE: (615) 843-7528 MONTH: _E RIL 1994 AVERAGE DAILY POWER LEVEL AVERAGE DAILY POWER LEVEL DM (MWe-Net) DM (MWe-Net) 1 1122 17 1120 2 112h 18 _1L22 3 L121 19 112L 4 1128 20 1122 5 1121 21 1127 6 1123 22 1132 7 1122 23 1135 8 1121 24 1132 9 1131 25 1133 10 1123 26 1096 11 1123 27 1125 12 1111 28 1134 13 ll22 29 1126 14 1L23 30 1140 15 1121 31 N/A 16 1094_

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E'N ,, .l' J l OPERATING DATA REPORT DOCKET NO. JQ-322 DATE 05/0.1/94 COMPLETED BY L J. Hollomon TELEPHONE (615) 843-7528 DER 611HG_.SIAnli l Notes- l

1. Unit Name: _ScuoyahJhtLL0ne_ l :1

2. Reporting Period: April 1994 l l

3. Licensed thermal Power (MWt): 3411.0 l _. l

4. Nameplate Rating (Gross MWe): 1220.6 l l

5. Design Electrical Rating (Net HWe): _ll4LQ l l

6. Maximum Dependable Capacity (Gross MWe): _J15LO l l

7. Maximum Dependable Capacity (Net MWe): 1111.0 l  !

8. If Changes Occur in Capacity Ratings (Item Numbers 3 Through 7) Since last Report, Give Reasons:

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 Reporting Period 719 2.879 11 L43&. _ .

12. Number of Mours Reactor Was Critical 42Q.6 4Z0 1 S W 10

13. Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 260.4 260.4. 55.088.9

15. Unit Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) _410.759.0 430.759.0 179 324 513 . . . _

17. Gross Electrical Energy Generated (MWH) 119 390 119.390 60.822.044

10. Het Electrical Energy Generated (HWH) 105.228 92J65 58.257.002 l ') . Unit Service Factor 36.2 9 0_ 49.0

20. 'Jnit Availability Factor 36.2 90 42 L

21. Unit Capacity Factor (Using MDC Net) 13.2 2.9 46.6

22. Unit Capacity Factor (Using DER Net) 12.7 LfL 452 1 _ _ >

23. Unit Forced Outage Rate 0 0 38_1 _

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

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25. If Shut Down At End Of Report Period -Estimated Date of Startup:

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OPERATING DATA REPORT DOCKET NO. .jiD-328 DATE 05/01/94 COMPLETED BY L. J. Hollomon TELEPHONE (615) 843-7528 DfERATING STATUS l Notes l'

1. Unit Name: Sequuah Unit Two l .l

2. Reporting Period: April 1994 -l l

3. Licensed Thermal Power (HWt): .3411.0 l l

4. Nameplate Rating (Gross MWe): 1220.6 l .l'

5. Design Electrical Rating (Net MWe): 1148.0 'l l

6. Maximum Dependable Capacity (Gross MWe): 1146.0 l l

7. Maximum Dependable Capacity (Net MWe): 1106.0 l l

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

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 Reporting Period 719 2.879 104.448

12. Number of Hours Reactor Was Critical 719.0 2 3]jk4__ 61.578

13. Reactor Reserve Shutdown Hours 0 0_ 0 j

14. Hours Generator On-Line 719.0 2.765.4 60.058.9

15. Unit Reserve Shutdown Hours 0 0 0 16, Gross Thermal Energy Generated (MWH) 2.444.780.5 9.328.214.D_- 189.091.166 '!

17. Gross Electrical Energy Generated (MWH) 842.987 3.?J5 E 5 64.144.779

18. Net Electrical Energy Generated (MWH) 807.839 3.100.486 61.378.772

19. Unit Service Factor 100.0 96.1 , 57.5 )

20. Unit Availability factor 100.0 96.1 57.5

21. Unit Capacity factor (Using MDC Net) 10Lf_ 97.4 SLL

22. Unit Capacity Factor (Using DER Net) 97.9 93.8. S L2_.

23. Unit forced Outage Rate 0.0 3 2._ 36.1

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

Unit 2 Cycle 6 Refuelino Outage scheduled to bealn 07/03/94 with duration of 67 days.

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

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DOCKET NO: 50-327 '

UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME: One i

DATE: 05/09/94 REPORT MONTH: April 1994 COMPLETED BY:T. J. Hollompn*-

TELEPHONE:f615) 843-7528 l Method of Licensee Cause and Corrective

, Duration Shutting Down Event System Component . Action to No. Date Type l (Hours) Reason 2 Reactor Report No. Code 4

Code 5 Prevent Recurrence .

4 1 940401 5 458.6 C 4 N/A N/A N/A- Unit I was in Mode 3 at the beginning of the month. The Unit 1 Cycle 6 refueling outage ended when the generator was synchronized to the grid on April 20 at .;

0338 EDT.

4 2 940427 .F B S On April 27 at 1027 EDT. with reactor power at approximately 74 L percent, a power level decrease was initiated to allow 18 main feed pump to be removed from service for maintenance.. The IB main feed pump would not maintain speed as a result of particles in the speed control fluid. The fluid was drained and the system cleaned as appropriate. A lower micron filter has been installed on the system to reduce the particle size in the system. .

Unit'I was operating at i

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approximately 48 percent reactor j power at the end of April.

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F: Forced Reason: Method: Exhibit G-Instructions S: 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-1022)

E-Operator Training and License Examination 5-Reduction

-F-Administrative 9-Other 5

G-Operational Error (Explain) . Exhibit I-Same Source H-Other (Explain)

s 00CKET NO: 50-328 *~

UNIT SHUTD0tMS AND POWER REOUCTIONS . UNIT NAME: Two . f..

DATE: 05/09/94- - '* --

REPORT MONTH: April 1994 COMPLETED BY:T. J. Hollomon* -

TELEPHONE:(615) 843-7528 Method of Licensee Cause and Corrective Duration Shutting _Down Event System Compgnent Action to Type l 4

No. Date (Hours) Reason 2 Reactor S Report No. Code Code D

Prevent Recurrence .

There were no outages or power reductions of greater than 20 percent to report during April.

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I:F Forced Reason: Method: Exhibit G-Instructions S: Scheduled' A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Haintenance 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-1022)

E-Operator Training and License Examination 5-Reduction-F-Administrative 9-Other.

5 G-Operational Error (Explain) Exhibit I-Same Source H-Other (Explain)

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