ST-HL-AE-4909, Monthly Operating Repts for Sept 1994 for South Texas Project Electric Generating Station

Monthly Operating Repts for Sept 1994 for South Texas Project Electric Generating Station

ML20076H662
Person / Time
Site:	South Texas
Issue date:	09/30/1994
From:	Groth J, Hill R HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-4909, NUDOCS 9410240105
Download: ML20076H662 (13)

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company liouston Lighting & Power outh Texas Projed ucaric Gennating Station IN O. Box 289 Wadmonh, Texas 77483 October 17, 1994 ST-HL-AE-4909 File No.- G02 10CFR50.71 U. S. Nuclear Regulatory Commission 4 Attention: Document Control Desk Washington, DC 20555 l South Texas Project Units 1 and 2  ;

Docket Nos. STN 50-498, STN 50-499 Monthly Operatina Reports for September 1994 Pursuant to 10 CFR5 0. 71 (a ) and South Texas Project Electric Generating Station (STPEGS) Technical Specification 6.9.1.5, attached are the Monthly Operating Reports for September 1994.

If you should have any questions on this matter, please contact Mr. S. M. Head at (512) 972-7136.

k 1 x J. F. roth Vice President, Nuclear Generation l

l MKJ/ pas l Attachments: 1) STPEGS Unit 1 Monthly Operating Report -

September 1994

2) STPEGS Unit 2 Monthly Operating Report -

September 1994 l

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941024alivs94o93n PDR 4 dor:V 0500044A R PDR / l Project Manager on Behalf of the Participants in the South Texas Project

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Ilonston Lighting & Power Company ,

ST-HL-AE-4909 South Texas Project Electric Generating Station File No.: G02 Page 2 c:  ;

Leonard J. Callan Rufus S. Scott Regional Administrator, Region IV Associate General Counsel U. S. Nuclear Regulatory Commission Houston Lighting & Power Company 611 Ryan Plaza Drive, Suite 400 P. O. Box 61067 Arlington, TX 76011 Houston, TX 77208 Thomas W. Alexion Institute of Nuclear Power Project Manager Operations - Records Center U. S. Nuclear Regulatory Commission 700 Galleria Parkway Washington, DC 20555-0001 13H15 Atlanta, GA 30339-5957 David P. Loveless Dr. Joseph M. Hendrie Sr. Resident Inspector 50 Bellport Lane c/o U. S. Nuclear Regulatory Comm. Bellport, NY 11713 P. O. Box 910 Bay City, TX 77404-910 Richard A. Ratliff Bureau of Radiation Control J. R. Newman, Esquire Texas Department of Health Newman, Bouknight & Edgar, P.C. 1100 West 49th Street STE 1000, 1615 L Street, N.W. Austin, TX 78756-3189 Washington, DC 20036 U. S. Nuclear Regulatory Comm. l K. J. Fiedler/M. T. Hardt Attn: Document Control Desk City Public Service Washington, D. C. 20555-0001 P. O. Box 1771 San Antonio, TX 78296 J. C. Lanier/M. B. Lee J. R. Egan, Esquire City of Austin Egan & Associates, P.C.

Electric Utility Department 2300 N Street, N.W.

721 Barton Springs Road Washington, D.C. 20037 Austin, TX 78704 G. E. Vaughn/C. A. Johnson Central Power and Light Company P. O. Box 2121 Corpus Christi, TX 78403 l

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l { ATTACHMENT 1 ST HL AE 4909 PAGE I OF L SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 l

MONTHLY OPERATING REPORT l

SEPTEMBER 1994 HOUSTON LIGHTING AND POWER CO.

NRC DOCKET NO. 50-498 LICENSF: NO. NPF-76' I

Reviewed By: \ l [tCf . i 8  ! IU ~

D. M. E(RpENDIJIL Date Reviewed By: / / /D!// fy F. H. MALLEN Date Approved By: QQ Mia o

'M W . MYERS 8

/2!9f Date i

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AT7 ACHMENT I Monthly Summary UI*dL-AU 490 9 PAGE c2 0F to STPEGS Unit 1 began the reporting period operating at 100% reactor power.

On 9/20/94 at 0105 the unit experienced a reactor trip on low-low steam generator level due to a main feedwater pump trip and a start-up feedwater pump recirculation valve not closing.

Corrective maintenance was performed and the unit was returned to service on 9/22/94 at 1916 and achieved 100% reactor power on 9/25/94 at 1810.

The unit concluded the reporting period operating at full power.

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I AT7 ACHMENT I l i ST.cn 4 4 % 9 i i J ';E 3 OF G

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OPERATING DATA REPORT DOCKET NO. 50-498 UNIT 1 DATE Oct. 6, 1994 COMPLETED BY R.L. Hill TELEPHONE 512/972-7667 OPERATING STATUS

1. REPORTING PERIOD: 09/01/94-09/30/94 GROSS HOURS IN REPORTING PERIOD: 720

2. CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3800 MAX. DEPEND. CAPACITY (MWe-Net): 1250.6 DESIGN ELECTRICAL RATING (MWe-Net): 1250.6

3. POWER LEVEL TO WHICH RESTRICTED (IT ANY)(MWe-Net): None

4. REASONS FOR RESTRICTION (IF ANY): N/A THIS MONTH YR TO DATE CUMULATIVE ,

l S. NUMBER OF HOURS REACTOR WAS CRITICAL. . 674.6 4871.3 31743.9 l

6. REACTOR RESERVE SHUTDOWN HOURS. .... 0 0 0 1

7. HOURS GENERATOR ON LINE................ 653.8 4634.3 30558.1

8. UNIT RESERVE SHUTDOWN HOURS....... .. ... 0 0 0

9. GkOSS THERMAL ENERGY GENERATED (MWt).... 2410390 16731285 111396793

10. GROSS ELECTRICAL ENERGY GENERATED (MWH).. 825480 5728910 37743570

11. NET ELECTRICAL ENERGY GENERATED (MWH).... 787299 5460689 35720233

12. REACTOR SLRVICE FACTOR.... .. . ..... ... 93.7% 74.4% 59.4%

13. REACTOR AVAILABILITY FACTOR., .. . ... . 93.7% 74.4% 59.4%

14. UNIT SERVICE FACTOR. .... ............. 90.8% 70.7% 57.1%

15. UNIT AVAILABILITY FACTOR..... ....... .. 90.8% 70.7% 57.1%

16. UNIT CAPACITY FACTOR (Using MDC)......... 87.4% 66.7% 53.4%

17. UNIT CAPACITY FACTOR (Using Design MWe).. 87.4% 66.7% 53.4%

18. UNIT FORCED OUTAGE RATE.... .... . ...... 9.2% 29.3% 31.8%

19. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH) :

Scheduled 45 day refueling outage to begin on March 4, 1995.

20. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A I

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'aT i(L-AE. 'R03 AVERAGE DAILY UNIT POWER LEVEL p,pg_ 4 OF L DOCKET NO. 50-498 UNIT 1 DATE Oct. 6, 1994 COMPLETED BY R.L. 11 i 1 1 TELEPHONE 512/972-7667 MONTH SEPTEMBER DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (W e-Net) (MWe-Net) 1 1253 17 1260 2 1257 18 1260

? 1255 19 1259 4 1255 20 5 5 1248 21 0 6 1250 22 0 7 1253 23 472 8 1254 24 994 9 1256 25 1181 10 1254 26 1261 11 1255 27 1261 12 1255 28 1260 13 1256 29 1258 14 1254 30 1261 l 15 1258 31 N/A 16 1259 i

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-498 UNIT 1 DATE Oct. 6, 1994 COMPLETED BY R.L. Hill TELEPHONE 512/972-7667 REPORT MONTII SEPTEMBER 1 2 3 4 5 No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective Action to (Hours) Shutting Event Code Code Prevent Recurrence

! Down Report #

l Reactor I

94-04 940920 F 66.2 A 3 1-94-015 JB FCV The unit experienced a reactor trip due to low-low level in Steam Generator 1C.

The event was initiated by the failure of i

an electronic control module on Steam Generator Feedwater Pump 13. This module varies or maintains feedwater flow based on indicated pump speed, feedwater and steam flow requirements. When the steam generator feedwater pump t. ripped, the start-up feedwater pump initiated as designed to maintain the steam generator water level. Due to an improperly adjusted controller on the start-up feedwater pump recirculation valve, water level was not maintained causing low water level in the steam generator and the

{ subsequent reactor trip.

l' Corrective actions to prevent recurrence will be addressed in the LER.

1 2 3 4 5 F: Forced Reason: Method: IEEE 805-1983 IEEE 803A-1983 S: Scheduled A-Equipment Failure (Explain) 1-Manual - -~

B-Maintenance or Test 2-Manual Scram y e y.

C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Cont.'of Existing y)[d N -> j E-Operator Training & License Exam Outage ggQ F-Administrative 5-Reduction m9 G-Operational Error (Explain) 9-Other O i El H-Other (Explain)

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ATTACHMENT t i ST Ht AE 'WO9 i PORVs and Safety Valves Summary pp,fj{ (,, OF 6 e_m There were no PORV or Safety Valves challenged during the reporting period.

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AT,CHMENT J

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SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 2 MONTHLY OPERATING REPORT SEPTEMBER 1994 HOUSTON LIGHTING AND POWER CO.

NRC DOCKET NO. 50-499 LICENSE NO. NPF-80 e

Reviewed By:  !((lM4 ff k lb /

D . 'M . Bliy. ENDOIL ' Dat6 I Reviewed By:

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• LEN km /v!// */g Ddte' Approved By: "N O!/d R.'E. MAS $E Dz(t e '

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j  ! ATTl.OtMENT e i - 3T p..AE. e49o*t 1

j Monthly Sununary __'er:p OF lo t.

4 l STPEGS Unit 2 operated during the reporting period with no unit shutdowns i or significant power reductions.

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OPERATING DATA REPORT --- J DOCKET NO. 50-499 UNIT 2 DATE Oct. 6, 1994 COMPLETED BY R.L Hil1 TELEPHONE 512/972-7667 OPERATING STATUS

1. REPORTING PERIOD: 09/01/94-09/30/94 GROSS HOURS IN REPORTING PERIOD: 720

2. CURRENTLY AUTHORIZED IOWER LEVEL (MWt) : 3800 MAX. DEFEND. CAPACITY (MWe-Net): 1250.6 DESIGN ELECTRICAL RATING (MWe-Net): 1250.6

3. POWER LEVEL TO WHICH RESTRICTED (IF ANY)(MWe-Net): None '

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4. REASONS FOR RESTRICTION (IF ANY) : N/A THIS MONTH YR TO DATE CUMULATIVE

5. NUMBER OF HOURS REACTOR WAS CRITICAL. ... 720.0 3071.6 27827.7

6. REACTOR RESERVE SHUTDOWN HOURS. .. . 0 0 0

7. HOURS GENERATOR ON LINE.................. 720.0 2890.0 26623.7

8. UNIT RESERVE SHUTDOWN HOURS., .... .. . 0 0 0

9. GROSS THERMAL ENERGY GENERATED (MWt).... 2746957 10036114 96469636

10. GROSS ELECTRICAL ENERGY GENERATED (MWH).. 942330 3385870 32590460

11. NET ELECTRICAL ENERGY GENERATED (MWH).... 902751 3238361 30973640

12. REACTOR SERVICE FACTOR.. .. ............. 100.0% 46.9% 60.1%

13. REACTOR AVAILABILITY FACTOR...... .... 100.0% 46.9% 60.1%

14. UNIT SERVICE FACTOR. .. ............... . 100.0% 44.3% 57.9*

15. UNIT AVAILABILITY FACTOR. .............. 100.0% 44.1% 57.5%

16. UNIT CAPACITY FACTOR (Using MDC)......... 100.3% 39.5% 53.5%

17. UNIT CAPACITY FACTOR (Using Design MWe).. 100.3% 39.5% 53.5%

18. UNIT FORCED OUTAGE RATE............. .... 0.0% 55.8% 32.3%

19. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE AND DURATION OF EACH):

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20. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A i

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ATT'OIMENT 1  !

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l AVERAGE DAILY UNIT POWER LEVEL l

4 DOCKET NO. 50-499 l UNIT 2 l DATE Oct. 6, 1994 COMPLETED BY R.L. Hill TELEPHONE 512/972-7667 i

i 9 l MONTH SEPTEMBER j i

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DAY AVERAGE DAILY POWER LEVEL l

. DAY AVERAGE DAILY POWER LEVEL 5 (MWe-Net) (MWe-Net)

) 1 1253 17 1256 i

2 1251 18 1255 l 3 1251 19 1256 4 1251 20 1256 l

5 1250 21 1256 6 1249 22 1251 J

j 7 1249 23 1257 1

8 1249 24 1258 9 1246 25 1260 10 1243 26 1258 l a

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11 1254 27 1256 12 1253 28 1258 4

13 1254 29 1259 i

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14 1255 30 1264 i 15 1254 31 N/A I

.! 16 1255 a

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UNIT SHDTEDWNS A2D POWER REDUCTIOZS DOCKET NO. 50-499 UNIT 2 DATE Oct. 6, 1994 COMPLETED BY R.L. Hill TELEPHONE 512/972-7667 REPORT MONTH SEPTEMBER i 1 2 3 4 5 i

! No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective Action to l (Hours) Shutting Event Code Code Prevent Recurrence

! Down Report #

Reactor r .

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i THERE WERE NO UNIT SHUTDOWNS OR SIGNIFICANT POWER REDUCTIONS DURING THE REPORTING PERIOD

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l 1 2 3 4 5 F: Forced Reason: Method: IEEE 805-1033 IEEE 803A-1983 S: Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram ,

C-Refueling D-Regulatory Restriction 3-Automatic Scram 4-Cont. of Existing i_ . ,.

i Ji E-Operator Training & License Exam Outage *

.1J d F-Administrative 5-Reduction  : ",' f h G-Operational Error (Explain) 9-Other 0>Z H-Other (Explain) g ?y

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- . . . .' ; ! MENT R l . e 4 P, ,I 4909

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PORVs and Safety Valves Summary ,_

There were no PORV or Safety Valves challenged during the reporting period.

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