ST-HL-AE-3235, Monthly Operating Repts for Aug 1989 for South Texas Project Electric Generating Station Units 1 & 2

Monthly Operating Repts for Aug 1989 for South Texas Project Electric Generating Station Units 1 & 2

ML20247H027
Person / Time
Site:	South Texas
Issue date:	08/31/1989
From:	Jordan T, Kent A, Mcburnett M HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-3235, NUDOCS 8909190193
Download: ML20247H027 (15)

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l The Light i company P.O. Box 1700 liouston, Texas 77001 (713) 228-9211 Ilouston Lighting & Power .

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September 14, 1989 '

ST-HL-AE-3235 File No.: G02 10CFR50.71 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 South Texas Project Electric Generating Station Units 1 & 2 Docket Nos. STN 50-498 & 50-499 Monthly Doeratine Reports for August. 1989 Pursuant to 10CFR50.71(a) and South Texas Project Electric Generating Station (STPECS) Technical Specification 6.9.1.5, attached are the Monthly Operating Reports for August, 1989.

If you should have any questions on this matter, please contact Mr. C. A. Ayala at (512) 972-8628.

/ 6 f//W M. A. McBurnett Manager Support Licensing MAM/BEM/nl Attachments: 1) STPEGS Unit 1 Monthly Operating Report - August, 1989

2) STPECS Unit 2 Monthly Operating Report - August, 1989 8909190193 890831 ADOCK 05000498 p

PDR p PDC ,

l Al/023.NL5 A Subsidiary of liouston Industries Incorporated

Houston Lighting & Power Company ST-HL-AE-3235 File No.: CO2

'Page 2 cc:

Regional Administrator, Region IV Rufus S. Scott Nuclear Regulatory Commission Associate Ceneral Counsel 611 Ryan Plaza Drive, Suite 1000 Houston Lighting & Power Company Arlington, TX 76011 P. O. Box 1700 Houston, TX 77001 Ceorge Dick, Project Manager U. S. Nuclear Regulatory Commission INPO Washington, DC 20555 Records Center 1100 Circle 75 Parkway Jack E. Bess Atlanta, GA 30339-3064 Senior Resident Inspector - Unit 1 c/o U. S. Nuclear Regulatory Commission Dr. Joseph M. Hendrie P. O. Box 910 50 Bellport Lane Bay City, TX 77414 Bellport, NY 11713 J. I. Tapia D. R. Lacker Senior Resident Inspector - Unit 2 Bureau of Radiation Control c/o U. S. Nuclear Regulatory Commission Texas Department of Health P. O. Box 910 1100 West 89th Street Bay City, TX 77414 Austin, TX 78756-3189 J. R. Newman, Esquire Newman & Holtzinger, P. C.

1615 L Street, N. W.

Washington, DC 20036 R. L. Range /R. P. Verret Central Power & Light Company P. O. Box 2121 Corpus Christi, TX 78403 R. John Miner (2 Copies)

Chief Operating Officer City of Austin Electric Utility 721 Barton Springs Road Austin, TX 78704 R. J. Costello/M. T. Hardt City Public Service Board P. O. Box 1771 San Antonio, TX 78296 Revised 06/16/89 A1/NL.DISR4

ATTACHMENT l

. ST HL AE J235' JMCE .. / OF 6 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 MONTHLY OPERATING REPORT AUGUST 1989 HOUSTON LIGHTING AND POWER CO.

NRC DOCKET NO. 50-498 LICENSE NO. NPF-76 Reviewed By 9!5 di General Supervisor Date Reviewed By: # [8[

P161i( Engineering Manager ~Ddte Approved By: ( CD\u \. 6 Plant ManAiger \ Dath '

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ATTACHMENT /

ST.HL.AE- JU f Monthly Summary

._P._A._GE 2. OF 6 STPECS Unit 1 began the reporting period at -80% reactor power. Maintenance was being performed on a failed inboard seal of the motor driven feedwater pump.

The maintenance was completed on 8/2/89 and the' unit returned to 100% reactor power on 8/4/89 at ~1100, on 8/5/89 the unit was shutdown for refueling and scheduled maintenance.

. s ATTACHMENT / >

. ST HL-AE- 313 >  !

OPERATING DATA REPORT DOCKET NO. 50-498 UNIT 1 DATE Sep. 1. 1989 COMPLETED BY A.P. Kent l TELEPHONE 512/972-7786 OPERATING STATUS

1. REPORTING PERIOD: 08/01-08/31 GROSS HOURS IN REPORTING PERIOD: 744

2. CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3800 i MAX. DEPEND. CAPACITY (MWe-Net): 1250.6 DESIGN ELECTRICAL RATING (MWe-Net): __1250.6

3. POWER LEVEL TO WHICH RESTRICTED (IF ANY)(MWe-Net): _Hpne

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

5. NUMBER OF HOURS REACTOR WAS CRITICAL..... 97.8 4094.3 6591.1

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

7. HOURS GENERATOR ON LINE...... ........... 96.3 4021.5 6427.5

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

9. GROSS THERMAL ENERGY GENERATED (MWt)..... 313757 14590406 23404928 10 GROSS ELECTRICAL ENERGY GENERATED (MWH).. 106730 4963740 7955970

11. NET ELECTRICAL ENERGY GENERATED (MWH). .. 91207 4676390 7467882

12. REACTOR SERVICE FACTOR................... 13.1% 70.2% 73.8%

13. REACTOR AVAILABILITY FACTOR...... . ..... 13.1% 70.2% 73.8%

14. UNIT SERVICE FACTOR.. ... ............ 12.9% 69.0% 72.0%

15. UNIT AVAILABILITY FACTOR................. 12.9% 69.0% 72.0%

16. UNIT CAPACITY FACTOR (Using MDC)....... . 9.8% 64.1% 66.9 %

17. UNIT CAPACITY FACTOR (Using Design MWe).. 9.8% 64.1% 66.9 %

18. UNIT FORCED OUTAGE RATE... .... . . ... 0% 5.2% 7.6%

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

None

20. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 09/28/89 I

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ATTACHMENT _.I

' ST HL- AE. 511) J AVERAGE DAILY UNIT POWER LEVEL

~PAGE_F OF 6 DOCKET NO. 50-498 UNIT -1 DATE Sep. 1. 1989 COMPLETED BY A.P. Kent TELEPHONE 512/972-7786 MONTH AUGUST DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 942 17 0 2 979 18 0 3 1183 19 0 4 1097 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 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 0 16 0

ATTACHMENT l

. ST HL AE. 3 2 3T PORVs and Safety Velves Summary pAgg ( pp g _

No PORVs or Safety Valves were challenged during this reporting period.

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ATTACHMENT 1 1 . ST HL AE 32 6 l

+ PAGE I OF 7 SOUTH TEXAS PROJECT ELECTRIC CENERATING STATION UNIT 2 MONTHLY OPERATING REPORT AUGUST 1989 HOUSTON LIGHTING AND POWER CO.

.NRC DOCKET NO. 50-499 LICENSE NO. NPF-80 Reviewed By:

• 9!5 N9 General Supervisor Date Reviewed By: 94 Pla6t/En'gineerin Manager 'D[te Approved By: C. TO Plant Manager \ 3 Date' i'

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ATTACHMENT 2.

ST HL AE. 3 235 Monthly Summary PAGE 2 OF 7 STPEGS Unit 2 began the reporting period at ~65% reactor power. The Unit is at reduced output due to the limitations of using only one main transformer.

On 8/02/89 at 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> the control room ventilation system actuated to the recirculation mode as a result of a high level trip of the Vinyl Acetate channel on a toxic gas analyzer. The redundant analyzer did not actuate. Cause of the event was the failure of an electro-mechanical positioner within the analyzer. The analyzer was replaced and will be returned to the manufacturer for analysis and repair.

On 8/15/89 at 2255 hours0.0261 days <br />0.626 hours <br />0.00373 weeks <br />8.580275e-4 months <br /> the generator was taken off line to install the replacement for Main Transformer 2A. The generator was placed back in service on 8/18/89 at 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br />.

On 8/23/89 at 0119 hours0.00138 days <br />0.0331 hours <br />1.967593e-4 weeks <br />4.52795e-5 months <br /> a reactor / turbine trip occurred due to the closure of Train "C" Feedwater Isolation Valve while performing a Feedwater System Valve Operability Test. The unit went back in service on 8/24/89 at 0430 hours0.00498 days <br />0.119 hours <br />7.109788e-4 weeks <br />1.63615e-4 months <br />.

On 8/29/89 at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br /> the unit was manually tripped by the control room in anticipation of an automatic trip on steam generator low low level due to the trip of all three turbine driven feedwater pumps. The unit went back in service on 8/30/89 at 0504 hours0.00583 days <br />0.14 hours <br />8.333333e-4 weeks <br />1.91772e-4 months <br />.

The reporting period concluded with Unit 2 increasing to 100% reactor power.

ATTACHMENT 2.

. ST HL AE 32.6 PAGE 3 OF 7 OPERATING DATA REPORT -

DOCKET NO. 50-499 UNIT 2 DATE Sen. 1. 1989 COMPLETED BY A.P. Kent TELEPHCNE 512/972-7786 OPERATING STATUS

1. REPORTING PERIOD: 08/01-08/31 GROSS HOURS IN REPORTING PERIOD: 744

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 (IF ANY)(MWe-Net): None

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

5. NUMBER OF HOURS REACTOR WAS CRITICAL..... 711.5 1624.8 1624.8

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

7. HOURS GENERATOR ON LINE.................. 646.7 1544.0 1544.0

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

9. GROSS THERMAL ENERGY GENERATED (MWt).. . 1794676 4792381 4792381

10. GROSS ELECTRICAL ENERGY GENERATED (MWH).. 600430 1616130 1616130

11. NET ELECTRICAL ENERGY GENERATED (MWH).... 559291 1522943 1522943

12. REACTOR SERVICE FACTOR..... ............. 95.6% 91.5% 91.5%

13. REACTOR AVAILABILITY FACTOR. . . . . . . ...... 95.6% 91.5% 91.5%

14. UNIT SERVICE FACTOR... ... .... . ..... 86.9% 86.9% 86.9%

15. UNIT AVAILABILITY FACTOR. ...... .. ... 86.9% 86.9% 86.9%

16. UNIT CAPACITY FACTOR (Using MDC).. .. .. 60.1% 68.6% 68.6%

17. UNIT CAPACITY FACTOR (Using Design MWe).. 60.1% 68.6% 68.6%

18. UNIT FORCED OUTAGE RATE... .. . . ...... 6.1% 10.3% 10.3%

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

Scheduled 18 day outage to begin November 4,1989 for Bottom Mounted Instrumentation Inspection.

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

ATTACHMENT 2 ST.HL AE. J 235 AVERAGE DAILY UNIT POWER LEVEL _P]&E t OF 7 DOCKET NO. 50-499 UNIT 2 l DATE Sen. 1. 1989 I COMPLETED BY A.P. Kent TELEPHONE 512/972-7786 MONTH AUGUST DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 747 17 0 2 745 18 389 3 741 19 1081 4 744 20 1139 5 717 21 1238 6 723 22 1236 7 730 23 21 8 740 24 594 9 741 25 1228 10 740 26 1235 11 738 27 1238 12 749 28 1240 ,__

13 754 29 698 14 756 30 296 15 649 31 706 16 0

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[ ATTACHMENT 2 i

' ST.HL AE. J2 6

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PORVs and Safety Valves Summary

' . :sA.GE1. 0EJ --

No PORVs or Safety Valves were challenged during this reporting period.

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