ML19325D804

Monthly Operating Repts for Sept 1989 for South Texas Project Electric Generating Station Units 1 & 2.W/891013 Ltr

ML19325D804
Person / Time
Site:	South Texas
Issue date:	09/30/1989
From:	Jordan T, Kent A, Mcburnett M HOUSTON LIGHTING & POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ST-HL-AE-3257, NUDOCS 8910260201
Download: ML19325D804 (15)

Text

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ST-HL AE-3257 File No.: G02 10CFR50.71 i U. S. Nuclear Regulatory Commission l Document Control Desk Attention:

Vashington. DC 20555 South Texas Project Electric Generating Station Units 1 & 2 Docket Nos. STN 50 498 & 50 499 Monthly Operatinc Recorts for Sectember. 1989

- Pursuant to 10CFR50.71(a) and South Texas Project Electric Generating Station (STPEGS) Technical Specification 6.9.1.5, attached are the Monthly Operating Reports for September, 1989.

If you should have any questions on this matter, please contact  ;

Mr. C. A. Ayala at (512) 972-8628.

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Af M. A. McBurnett l Manager l Support Licensing l

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l l' Attachments: 1) STPEGS Unit 1 Monthly Operating Report - September, 1989

2) STPEGS Unit 2 Monthly Operating Report - September, 1989 l

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- l A1/023.NL5 A Subsidiary of Ilouston Industries Incorporated L

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Regional Administrator,. Region IV Rufus S. Scott Nuclear Regulatory Commission Associate Cencral Counsel 611 Ryan Plaza Drive, Suite 1000 llouston 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, CA 30339-3064 Senior Resident Inspector - Unit 1 c/o U. S. Nuclear Regulatory Commission Dr. Joseph M. llendrie P. O. Box 910 50 Be11 port Lane  ;

Bay City, TX 77414 Be11 port, NY 11713 J. I. Tapia D. R. Lacker Senior Resident Inspector - Unit 2 Bureau of Radiation Control l

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 & lloltzinger, P. C. <

1615 L Street, N. W. '

3 Washington DC 20036 '

R. L. Range /R. P. Verret Central Power & Light Company a P. O. Box 2121 I Corpus Christi, TX 78403 R. John Minor (2 Copies)

Chief Operating Officer City of Austin Electric Utility q 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 1

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Revised 06/16/89 A1/NL.DISR4 5

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I' ATTACHMENT I ST HL A6 J2 5-7 ,

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SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 i MONTHLY OPERATING REPORT SEPTEMBER 1989 HOUSTON LIGHTING AND POWER CO.

i' NRC DOCKET NO. 50-498

. LICENSE NO. NPF-76 i

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Reviewed I : . Iod /M  ;

General Supervisor Date Reviewed By: 8N 7 dnt Engineeri,ng M ager 'Date Approved By: h \, m 10- 9 6 ,

Plant Manager Q Date ,

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ATTACHMENT 1 Monthiv Summarv - ST HL.AE. 31.J2 PAGE 2.OF 6 ,

c.<,, The; unit remained shutdown for refueli.ng and' scheduled maintenance,' ..

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OPERATING DATA REPORT ST.HL.AE 74 57 PAGE 3 OF 6 DOCKET NO. 50-498 g

UNIT 1

' DATE Oct. 4. 1989 i COMPLETED BY A.P. Kent TELEPil0NE 512/972-7786 OPERATING STATUS

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

2. CURRENTLY AUTi!0RIZED POWER LEVEL (MWt): 3800 f MAX. DEPEND. CAPACITY (NWe Net): 1250.6_

DESIGN ELECTRICAL RATING (MWe Net): 1250.6

3. POWER LEVEL TO WilICil RESTRICTED (IF ANY)(MWe Net): None

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

5. NUMBER OF ll0URS REACTOR WAS CRITICAL..... 0 4094.3 6591.1

6. REACTOR RESERVE SilUTDOWN HOURS........... 0 0 0

7. 110URS GENERATOR ON LINE. . . . . . . . . . . . . . . . . . 0 4021.5 6427.5

8. UNIT RES ERVE SilUTDOWN 110URS . . . . . . . . . . . . . . 0 0 0 (

9. GROSS TilERMAL ENERGY GENERATED (NWt) . . . . . 0 14590406 23404928

10. GROSS ELECTRICAL ENERGY GENERATED (MWH). . 0 4963740 7955970

11. NET ELECTRICAL ENERGY GENERATED (MW11) . . . . -5453 4670937 7462429

12. REACTOR SERVICE FACTOR................... 0% 62.5% 68.3%

13. REACTOR AVAILABILITY FACTOR. . . . . . . . . . . . . . 0% 62.5% 68.3%

14. UNIT SERVICE FACT 0R...................... 0% 61.4% 66.6%

15. UNIT AVAILABILITY FACTOR................. 0% 61.4% 66.6%

16. UNIT CAPACITY FACTOR (Using MDC)......... -0.6% 57.0% 61.9%

17. UNIT CAPACITY FACTOR (Using Design MWe).. -0.6% 57.0% 61.9%

18. UNIT FORCED OUTAGE RATE., .... .. .. ... 0% 5.29 7.6%

l 19. SHUTDOWNS SCllEDULED OVER NEXT 6 MONTilS (TYPE, DATE, AND DURATION OF EACll): i None l 20. IF SlIUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 10.4Uf88.2 4

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[' l ATTACHMENT 1 l,ST HL.A,f 3 252 PAGE 7 0F 4 AVERAGE DAILY UNIT POWER LEVEL i:

DOCKET NO. 50 498 i UNIT 1

< DATE Oct. 4. 1989 COMPLETED BY 6a P. Kent

, TELEPHONE ~512/972-7786 l

MONTH SEPTE@,EjL r

DAY- AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe Net) l' O 17 0 2 0 18 0

, 3 0 19 0 4 0 20 0 5 0 21 0 L

6 0 22 0 7 0 23 0 8 0 24 0 ,

9 0 25 0 10 ,,,,,_

0 26 0 11 0 27 0 i

12 0 28 0 t 13 0 29 0 {

1 14 0 30 0  :

15 0 31 N/A 16 0 l

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UNIT SHUTDOWNS AND POWER REDUCTIONS . ...

DOCKET NO. 50-498 e UNIT 1-DATE Oct. 4. 1989 COMPLETED BY.'A.P. Kent TELEPHONE 512/972-7786 REPORT MONTH SEPTEMBER No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective Action to (Hours) Shutting Event Code Code Prevent Recurrence Down Report #

Reactor 89-10 890805 S 720.0 C 4 N/A N/A N/A Manual shutdown for refueling and scheduled maintenance.

2 S 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 C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Cont. of Existing E-Operator Training & License Exam Outage F-Administrative 5-Reduction EATTACHMENT l G-Operational Error (Explain) 9-Other . ST.HL-AE- 72 T#

11-Other (Explain)

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ATTACHMENT /

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- ST HL AE, J2 5 2 PORVs and Safety Valves Si===ry i

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! SOUTH TEKAS PROJECT l ELECTRIC GENERATING STATION IJ UNIT 2 MONTHLY OPERATING REPORT ,

i' SEPTEMBER 1989 HOUSTON LIGHTING AND POWER CO.

NRC DOCKET No. 50-499 -

LICENSE NO. NFF-80 t

e Reviewed B - i'b M General Supo visor Date Reviewed By: IO!I f P 6 f EKgir%ering Manager b/te ' 7 Approved By: M_ d. wAn s luk @

Plant Manager Dhth '

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ATTACHMENT 2

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. ST.HL..hE.' 3 L52 ,

Month 1y Summarv _.f4GE,A 0F 7 .!

I' Unit.2 began the reporting period at 100%- reactor power. -  ;

i- On 9/05/89 at 1607 hours0.0186 days <br />0.446 hours <br />0.00266 weeks <br />6.114635e-4 months <br /> a reactor / turbine trip - occurred when a Steam Generator Feedwater Pump (SGFP) tripped on overspeed. The unit was removed from i service for 17.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.  ;

A reactor / turbine trip occurred on 9/19/89 at 1237 from a decrease in Over- .

!. Temperature Delta Temperature (OTDT) setpoints caused by an OTDT turbine runback. -l The generator was placed back on line on 9/20/89 at 0524.- t I' -

On 9/22/89 at 0202 a reactor trip occurred as a result'of a turbine trip l above 50% reactor power. The unit was removed from service for 147.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. ,

L The unit concluded the reporting period at 1006 reactor power. ,

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. OPERATING DATA REPORT g.

DOCKET NO. 50-49'9 I UNIT 2 >

DATE grl 4,_1989 I COMPLETED BY A.P. Kent TELEPHONE . 512/972-7786 OPERATING STATUS ,

j- 1. REPORTING PERIOD: 09/01-09/30 GROSS HOURS IN REPORTING PERIOD: 720 F 2. CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3800

[ MAX. DEPEND. CAPACITY (MWe Net): 2250.6 DESIGN, ELECTRICAL RATING (MWe Net): 1250.6 j 3.- POWER LEVEL TO WHICH RESTRICTED (IF ANY)(MWe Net): None

'4. REASONS FOR RESTRICTION (IF ANY): N/A 1

e' THIS MONTH YR TO DATE CUMULATIVE

5. NUMBER OF HOURS REACTOR WAS CRITICAL..... 580.7 2205.5 7705.5

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

7. HOURS GENERATOR ON LINE.................. 538.1 2082.2 2082.2 4

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8. UNIT RESERVE SHUTDOWN. HOURS..............__ .2 0 0 i

9. ' GROSS THERMAL ENERGY GENERATED (MWt).... 1886300 6678681 6679681 i

10. GROSS ELECTRICAL ENERGY GENERATED (MWH).. 634600 2250730 2250730

11. NET ELECTRICAL ENERGY GENERATED (MWH).... 591713 2114656 2114656 l

12. REACTOR SERVICE FACTOR................... 80.7% 88.4% 88.4%  ?

'13. REACTOR AVAILABILITY FACTOR.............. 80.7% 88.4% 88.4%

14. UNIT SERVICE FACTOR......... ............ 74.7% 83.4% 83.4%

15. UNIT AVAILABILITY FACTOR................. 74.7% 83.4% 83.4%

16. UNIT CAPACITY FACTOR (Using MDC). . ..... 65.7% 67.7% 67.7% ,

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17. UNIT CAPACITY FACTOR (Using Design MWe).. 65.7% 67.7% 67 11

18. UNIT FORCED OUTAGE RATE........ ........ 25.3% 14.7% 14.7%

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

Scheduled 44 day outage to begin November 4, 1989 for Bottom Mounted Instrumentation Inspection and Turbine Inspections.

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

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s ATTACHMENT 2

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AVERAGE DAILY UNIT POWER LEVEL -F' AGE 4 0F 7 DOCKET NO. 50 499 UNIT 2

< DATE Oct. 4. 1989 COMPLETED BY A.P. Ment TELEP110NE 512/972 7786 MONTil Scotember i DAY AVERACE DAILY POWER LEVEL DAY AVERACE DAILY POWER LEVEL (MVe Net) (MWe Net) 1 1232 17 1243 ,

2 1743 18 1243 3 1243 19 628 4 1241 20 321 5 814 21 672 6 225 22 44 7 _ , . 619 23 0 i

8 1212 24 0 9 1240 25 0 10 1247 ,_ 26 0 _

11 1241 27 0 1241 28 555 12 f 13 1237 29 1247 14 1241 30 1228 15 1244 31 N/A  ;

16 1244

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. 6 UNIT SHUTDOURS AND PotER REDUCTIONS 3 DOCKET NO. 499 i UNIT 2 DATE Oct. 4. 1989 COMPLETED BT A.P. r.nt-TELEPHONE 512/972-7786 REPORT MONTH Sentember 1 2 3 4 5 No. lDate Type Duration Reason Method of Licensee System Component Cause & Corrective Action to (Heurs) Shutting Event Code Code Prevent Recurrence Down Report # ,

Reactor 89-06 890905 F 17.3 A 3 2-89-021 JK SG Reactor / Turbine trip occurred when a Steat. Generator Feedwater Pump (SCFP) tripped on overspeed. The cause of this event was a defective SCFP speed control-1er card edge connector which .s dis-turbed during troubleshooting of a circuit card for a different SCFP in the same card frame. The defective card edge connector was repaired, the card frame aligrwient checked, and remaining circuit cards and edge connectors were inspected and contact surfaces cleaned.

89-07 890919 F 16.8 H 3 2-89-022 TA TRB Reactor / Turbine trip occurred free a decrease in OIDT setpoints caused by an OTDT turbine runback. The OTDT turbine runback circuit was discovered to be set for a runback of 15 seconds rather than 1.5 seconds. Short-term actions were to remove the OTDT and OTDT runback functions 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 C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Cont. of Existing E-Operator Training & License Exam Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other H-Other (Explain) ATTIC W m T ST R. G I M y p/ y SCF 7 -1

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UNIT SNUTDOUNS AND POWER REDUCTIOttS .

e DOCKET NO. 50-499 L3IT 2 DATE Oct. 4_ 1989 COMPLETED BY A.P. Kent TELEPHONE 512/972-7786 REPORT MO5'HI D tember No. Date Type Duration Reason Method of Licensee System Component Cause & Corrective Action to (llours) Shutting Event Code Code Prevent Recurrence Down Report e Reactor i per a temporary modification prior to putting the turbine on line. Iong-term actions are under investigation.

89-08 890922 F 147.8 A 3 2-89-023 TA CAP Reactor trip occurred when the turbine tripped above 50% reactor power. The turbine tripped when a capacitor failed on the DC supply to an inverter that feeds the automatic bus transfer device. The device transferred to emergency service which caused a momentary loss of power to the turbine auto stop test circuits resulting in a turbine trip. The capacitor was replaced.

F: Forced Reason: Method: IEEE 805-1983 IEEE 803A-1983 S: Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scrare C-Refueling 3-Automatic Scram D-Re5ulatory Restriction 4-Cont. of Existing E-Operator Training 6 License Exam Outage F-Administrative 5-Reduction ATTACHMENT 2 G-Operational Error (Explain) Y-Other , $T.HL-4E- f 2 77 fi-Other (Explain) PAGE 6 OF f

ATTACHMENT 2-LT HL AE 32>~2 PORVs and Safety Valves Summary .

_ ige _7 Of 7 No PORVs or Safety Valves were challenged during this reporting period,