Text

Revised Monthly Operating Rept for South Texas Project Unit 1
	ML20236C916
Person / Time
Site:	South Texas
Issue date:	01/31/1989
From:	Kent A; HOUSTON LIGHTING & POWER CO.
To:	;
Shared Package
ML20236C889	List: ML20236C909; ML20236C916; ST-HL-AE-3027, Forwards Monthly Operating Repts for Feb 1989 for South Texas Units 1 & 2 & Revised Rept for Jan 1989 for Unit 1;
References
	NUDOCS 8903220375
	Download: ML20236C916 (7)
	v • d • e

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l ATTACHMENT 3 ST-HL AE Jo2.7 PAGE / OF F l-SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION UNIT 1 MONTHLY OPERATING REPORT JANUARY 1989 HOUSTON LIGHTING AND POWER CO.

NRC DOCKET NO. 50-498 LICENSE NO. NPF-76 Prepared by: 3 (p A df Performance Technician Dhte Reviewed by: - -

3/(./49 Performance Technician Gen. Supervisor Date Rev By: h 3/F[@

P1'an En i eering nager 'Date Reviewed By: 1 m .

9;[AfD Plant, S perintendjnt bale '

Approved By: u 3-13-q 7 1 ant Mahager Date 8903220375 890315

{DR ADOCK 05000498 PDC REVISION 1

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ATTACHMENT .3

. ST HL AE. 3o2 7 ;

Monthly Summary PAGE 2 OF T !

-i STPEGS Unit.1 began the reporting period at 100% reactor power. .

On 01/03/89 at 1317 the' reactor / turbine tripped on over temperature l delta temperature. -

The unit went back on line 01/06/89 at 1013 and achieved 100%

reactor power on 01/08/89 at approximately 0400. On 01/14/89 the unit reduced reactor power to 45% to allow maintenance on a reheat stop valve. Reactor power was returned to 100% on 01/16/89 at approximately 2330.

On 01/20/89 at 1118 a high vibration alarm on the turbine !

bearing panel and a fire alarm on a turbine bearing were received. At l 1123 the unit was manually tripped due to a fire on a generator bearing. The fire was extinguished at 1137 and cooling by manual hose 1 l

lines continued until approximately 1300. A Notification of Unusual i Event (NOUE) was declared at 1206. The Main Generstor waa purged with-carbon dioxide from J219 on 01/20/89 until 0014 on 01/21/89. The NOUE was terminated at 0041 on 01/21/89. !

The Bottom Mounted Instrumentation Outage was rescheduled for 01/24/89 at 0001. This time will also be used to investigate the j

generator incident and to make necessary repairs. ;

The unit concluded the month in the Bottom Mounted Instrumentation Outage.

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" ATTACHMENT 3 ST.HL-AE 3 ##

j PAGE J OF 7 OPERATING DATA REPORT DOCKET NO. 50-498 UNIT 1 DATE March 8, 1989 COMPLETED BY A.P. Kent TELEPHONE 512-972-7786 OPERATING STATUS

1. REPORTING PERIOD: 01/01-01/31 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. REASONS FOR RESTRICTION (IF ANY): N/A THIS MON"'H YR TO DATE CUMULATIVE S. NUMBER OF HOURS REACTOR WAS CRITICAL...... 412.8 412.8 2909.7

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

7. HOURS GENERATOR ON LINE................... 398.4 398.4 2804.5

8. UNIT RESERVE SHUTDOWN H0URS................ 0 0 0

9. GROSS THERMAL ENERGY GENERATED (MWt)... 1368165.5 1368165.5 10182687

10. GROSS ELECTRICAL ENERGY GENERATED (MWH)..... 465700 465700 3457930

11. NET ELECTRICAL ENERGY GENERATED (MWH)...... 422933 422933 _,3214425

12. REACTOR SERVICE FACTOR..................... 55.5% 55.5% 75.8%

13. REACTOR AVAILABILITY FACTOR................ 55.5% 55.5% 75.8%

14. UNIT SERVICE FACT 0R....................... 53.6% 53.6% 73.0%

15. UNIT AVAILABILITY FACTOR................... 53.6% 53.6% 73.0%

16. UNIT CAPACITY FACTOR (Using MDC).......... 45.5% 45.5% 66.9%

17. UNIT CAPACITY FACTOR (Using Design MWe)... 45.5% 45.5% 66.9%

18. UNIT FORCED OUTAGE RATE.................... 27.8% 27.8% 14.1%

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

N/A

20. IF SKUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP: 03/02/89

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 08/25/88 OE/25/88

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- ATTACHMENT J l

. ST HL AE- 30 2 "/

EGE 4 OF 7 -

' AVERAGE DAILY UNIT POWER LEVEL

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DOCKET NO. 50-498' UNIT 1 DATE March 8, 1989 COMPLETED BY' A.P. Kent !

TELEPHONE - 512-972-7786 MONTH January

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DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)' (MWe-Net) 1 1227 17 1241 2 1227 18 1245 1

3 652 19 124'3'

.4 0 20 560- l 5- 0 21 0 :

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.10 1226 26 0 1227 27 0 11 12 -1219 28 0 l 13 1215 29 0 14 ' 520 30 0 15 496 31 0 'l 16 980 l

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ATTACHMENT J j

. ST HL-AE Jo 27

.PAGE 7 OF 7 PORVs and Safety Valves Summary j

- AtL1317 hours on January 3,1989 with Unit:1 'in' Mode 1 at 100%

power, a reactor trip occurred en over temperature / delta signals

, generated ~ in two of four reketor coolant loops as a result of a failure.in the main turbine-generator electro-hydraulic control (EHC) system which closed the turbine governor valves. Approximately 2.5 seconds prior to the reactor trip, both pressurizer power operated relief valves (PORVs) opened, but closed immediately,upon reactor' trip.

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ML20236C916

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