ML20154D680

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Monthly Operating Rept for Apr 1988
ML20154D680
Person / Time
Site: South Texas STP Nuclear Operating Company icon.png
Issue date: 04/30/1988
From: Nesrsta J
HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20154D658 List:
References
D, NUDOCS 8805190293
Download: ML20154D680 (7)
v • d • e


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SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 HONTHLY OPERATING REPORT .

J HOUSTON LIGHTING AND POWER CO. [

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t NRC DOCKET NO. 50-498 LICENSE NO. NPF-76 l j .

t Prepared by sT ,< . s g  !

Lealf Perfhance Technician Date '

' Reviewed by: NI C ' 0'b b d df,4f '

Pe rf ormanc e/ Te chn ic i a n Supe rv i s o r Date

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Reviewed By: ,h. A.A> rd S'-10

  • 8 8 PlantE'ngge'erind"Ma' nager Date Reviewed B bN, t 5- lo-E

'l tyf Plant Superiniddent Date j l Approved By: 7-10-[

{ Plant ManagQ Date

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8805190293 880513 PDR ADOCK 05400498 i

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OPERATING DATA REPORT DOCKET NO. 50-498 UNIT 1 DATE 05/06/88 COMPLETED BY J.J. Nesrsta TELEPHONE 512-972-7827 OPERATING STATUS

1. REPORTING PERIOD: 04/01-04/30 GROSS HOURS IN REPORTING PERIOD: 719
2. CURRENTLY AUTHORIZED POWER LEVEL (MVt):3817 MAX. DEPEND. CAPACITY (HWe-Net):Not Determined DESIGN ELECTRICAL RATING"(HWe-Net):1250.6
3. POWER LEVEL TO WHICH RESTRICTED (IF ANY)(HWe-Net): N/A
4. REASONS FOR RESTRICTION (IF ANY): Unit in power ascension testing phase.

THIS MONTH YR TO DATE CUMULATIVE

5. NUMBER OF HOURS REACTOR WAS CRITICAL...... 665.95 678.25 678.25
6. REACTOR RESERVE SHUTDOWN HOURS............. 0 0 0
7. HOURS GENERATOR ON LINE.................... 602 602.6 602.6
8. UNIT RESERVE SHUTDOWN HOURS................ 0 0 0
9. GROSS THERMAL ENERGY GENERATED (HWH)...... 663,ll5.2 666,554.2 666,554.2
10. GROSS ELECTRICAL ENERGY GENERATED.......... 167,270.0 167,312.8 167,312.8
11. NET ELECTRICAL ENERGY GENERATED (HWH)...... 120,786.0 119,415.0 119,415.0
12. REACTOR SERVICE FACTOR..................... N/A N/A N/A
13. REACTOR AVAILABILITY FACTOR. . . . . . . . . . . . . . . . N/A N/A N/A 14 UNIT SERVICE FACTOR........................ N/A N/A N/A
15. UNIT AVAILABILITY FACTOR................... N/A N/A N/A
16. UNIT CAPACITY FACTOR (Using HDC)........... N/A N/A N/A
17. UNIT CAPACITY FACTOR (Using Design HWe).... N/A N/A N/A

, 18. UNIT FORCED OUTAGE RATE.................... N/A N/A N/A

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

Scheduled 16 day outage to begin 05/01/88 for Essential Cooling Water System rework and Bottom Mounted Instrumentation inspection.

20. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: N/A
21. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION): FORECAST ACHIEVED
INITIAL CRITICALITY 03/08/88 03/08/88 INITIAL ELECTRICITY 03/30/88 03/30/88 COMMERCIAL OPERATION 07/01/88 i

NL.SHL,NRC. HOR

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-498 UNIT 1 DATE 05/06/88 COMPLETED BY J.J. Nesrsta TELEPHONE 512-972-7827 MONTH April DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL I (MWe-Net) (HWe-Net) i 1 0 17 241 l

2 0 18 213 i

3 0 19 263 I i

4 9 20 281 5 28 21 277 i

6 0 22 274  !

7 15 23 275  !

8 52 24 275 4 9 108 25 271 10 198 26 248 '

11 195 27 266 ,

12 191 28 266 13 187 29 264 14 191 30 251 15 192 31 N/A 16 199 i

NL.SHL.NRC.MOR

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UNIT SHUTDOWNS AND POWER REDUCTIONS .

DOCKET NO. 50-498 .

UNIT NAME 1 DATE 05/06/88 COMPLETED BY J.J. Nesrsta -

TELEPHONE 512-972-7827 REPORT MONTH April 1 2 No. Date Type Duration Reason Method of Licensee Systgm Compongnt Cause & Corrective (Hours) Shutting 3

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i Down Reactor Report # Prevent Recurrence 1

1 4 1

3 88-01 880330 F 69.4 B 3 88-026 EL RLY-86 Reactor Trip due to 4

series of Main i Generator Lockout and a

Main Transformer Lockout Relays i

tripping when a test j signal was incorrectly inserted into the generator i control circuits.

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

C-Refueling 3-Automatic Scram.

5 l D-Regulatory Restriction 4-Cont. of Existing IEEE 803A-1983 i E-Operator Training & License Examination Outage j F-Administrative 5-Reduction

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G-Operational Error (Explain) 9-Other H-Other (Explain) l ML.5HL.NRC.MOR

UNIT SIIUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-498 UNIT NAME 1 DATE 05/06/88 COMPLETED BY J.J. Nesrsta TELEP110NE 512-972-7827 REPORT MONT11 April 1 2 No. Date Type Duration Reason Method of Licensee Systgm Compongnt Cause & Corrective (Hours) Shutting 3

Event Code Code Action to Down Reactor Report # Prevent Recurrence 88-02 880404 S 8.9 B 9 N/A TA TP3 Turbine Overspeed Test (RX Critical) 88-03 880405 S 4.6 B 9 N/A TA TRB Turbine Overspeed Test (Rx Critical) 88-04 880405 S 1.1 B 9 N/A TA TRB Trrbinc Overspeed Test (Rx Critical) 88-05 880406 S 27.8 B 9 N/A TA TRB Steam leak repair.

(Rx Critical) 88-06 880407 F 5.2 D 9 N/A VI TRB Shutdown due to two Control Room HVAC Makeup and one stand-by diesel generator inoperable. Tech Spec shutdown requirement.

[ (Rx Critical) l F: Forced Reason: Method: IEEE 805-1983 S: Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram.

C-Refueling 3-Automatic Scram.

5 .

D-Regulatory Restriction 4-Cont. of Existing IEEE 803A-1983 E-Operator Training & License Examination Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other N L. 511L. N RC. MO R II-O t he r (Explain) 1 l

Monthly Summary South Texas Project Unit I began the month in a forced outage with power ascension beginning on 04/03/88. The unit operated at 30% reactor power and achieved significant objecti res toward completion of the Startup Testing Program.

On 04/04/88 the unit began supplying a positive net generation.

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

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