ML20070R764

Monthly Operating Rept for Feb 1991 for Comanche Peak Steam Electric Station

ML20070R764
Person / Time
Site:	Comanche Peak
Issue date:	02/28/1991
From:	Buschbaum D, Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
TXX-91112, NUDOCS 9104010405
Download: ML20070R764 (5)

Text

.

La F

Log # TXX-91112 File # 10010.2 Ref.

1. 10CFR50.36 TUELECTRIC March 15, 1991 William J. Cahill, Jr.

Enocuttve Vke Presulent Docum M Ce&r,\\ D n W.

- 1! r Cc age-4r-Beno4h-Ais%t4r SH+ee-of-Re5 0u r;; %4eenerit-V. S. Nuclear Regulatory Commission Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET N0. 50 445 HONTHLY OPERATING REPORT FOR FEDRUARY 1991

Dear Hr. Benoit:

Attached is the Monthly Operating Report for February 1991 prepared and Jubmitted pursuant to Specification 6.9.1.5 of Appendix A (Technical Specifications) to the Comanche Peak Unit 1 Steam Electric Station Operating License, NPF-87.

Sincerely.

William J. Cahill, Jr.

By:

D. R. Woodlan Docket Licensing Manager JLR/grp Attachment c - Mr. R. D. Hartin, Region IV Resident Inspectors, CPSES (3)

Mr. J. W. Cli f ford, NRR 9104010405 910228 PDR ADOCK 05000445 R

PDR l

400 North Olive Street LB,81 -Dallas, Texas 75201 i

Attachment to TXX 91112 Page 1 of 4

~

COMANCHE PEAK STEAM ELECTRIC STATION, UNIT 1 NRC MONTHLY OPERATING REPORT DOCKETNO:

50 445 UNIT:

CPSES1 DATE:

March 12.1991 COMPLETED BY:

D. E. Buschbaum TELEPHONE:

817 897 5851 OPERATING STATUS 1.

Pacorting Period: FEBRUARY 1991 Gross hours in reporting period: 622 2,

Currently authorized power level (MWt): 1411. Max. depend. capacity (MWe Net): 115D.* Design Electrical Rating (MWe Net): 115.0 3.

Power level to which restricted (if any) (MWe Net): None 4.

Reasons for restriction (if any):

THIS MONTH YRTO DATE CUMULATIVE C.

Number of hours reactor was critical 652.4 1362.9 4289.3 6.

Reactor reserve shutdown hours 19.6 53.1 326 7.

HvJrs generator on line 648-1350.5 4216.2 8.

Unit reserve shutdown hours 0

0 0

9.

Gross thermal energy generated (MWH) 2,05.4,786 4,314,232 12,47.1.160

10. Gross electrical energy generated (MWH) 685,222-1,447,540 L 4,112,540

11. Net electrical energy generated (MWH) 660,356 1,388,607

.3,902,121

12. Reactor Service factor 97.1 96.3 89.5

13. Reactor availability factor 100' 100 96.3

14. Unit service factor-96.4 95.4 88.0-I

15. Unit availability factor 96.4

. 95.4 -

88.0

16. Unit capacity factor (Using MDC) 85.4.

85.3 70.8

17. Unit capacity factor (Using-Design MWe) 85A -

85.3 17 0.8.

18. Unit forced outage rate 3.6 _

4.6 6.8

19. Shutdowns scheduled over next 6 months (Type, Date, and Duration of each): a) Maintenance /

Surveillance, 910413, 6 weeks.

20. If shutdown at end of report period, estimated date of startup:

21 Unite in test status (prior to commercial operation):

FORECAST ACHIEVED Initlai Criticality 900403-900403 f

Inlllal Electricity 900501 900424 Commercial Operation 900721 900813 l

Estimated

.. ~.

Attachment to TXX 91112 Page2ol4 AVERAGE DAILY UNIT POWER LEVEL DOCKETNO:

S0-445 UNIT:-

CPSES 1 DATE:

March 12.1991 COMPLETED BY:

D. E. Buschbaum TELEPHONE:

817-897 5851 MONTH: FEBRUARY 1991

[AY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe Net)

. (MWe Net) 1 1048 17 1047 2

1050 18 1047 3

1042 19 1046-4 1043 20 1046 5

1043 21 1045-i 6

1043 22 1049 7

1044 23 1010 I

8 950 24 1051 9

853

-25 1045 10 167 26 1036 l

11 292 27 1042

-12 1018 28 1045 13 1044

-29 i

-14 1045 30 15 1041 31 16 1042 n

~

Attachment to TXX 91112

'Page 3 of 4 i

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKETNO:

50-445 UNIT:

CPSES 1 DATE:

March 12.1991 COMPLETED BY:

D. E. Buschbaum TELEPHONE:

817 897 5851 MONTH: FEBRUARY 1991 2/1 0000 Unit started month in MODE 1.

2/10 0531 Reactor Trip, Unit entered MODE 3.

Reactor tripped on Undervoltage Trip of #3 Reactor Coolant Pump. Trip caused by operator error when switchboard cabinet was opened disconnecting UV relays. LER 91004 to follow.

2/11 0105 Unit entered MODE 2.

0250 Unit entered MODE 1.

2/15 1647 Experienced inadvertent actuation of an. auxiliary feedwater slave relay during response time testing which actuated the turbine driven auxiliary

-feedwater pump and other equipment. LER 91_005 to follow.

2/28 1345

' Inadvertent actuation of the ECCS containment sump suction valve 18811 A-during surveillance testing allowing approximately 15,000 gallons of RWST water to drain to the containment sump before being secured.

LER 91006 to follow.-

2/28 2400 Unit ended month in MODE 1'.

l lo V

y w

wr e

-ng--

w-g y

.,&di.

s Attachment to'TXX-91112 Page 4 of 4 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKETNO:

50-445 UNIT:

CPSES 1 DATE:

March 12.1991 COMPLETED BY:

D. E. Buschbaum TELEPHOtE 817-897-5851 I

REPORT MONTH FEBURARY 1991 IETHODOF TYPE SHU1 TING DOWN Ff0RCED DURATION TEREACTOROR M

DATE S:SCHEDLg Fn (HOURS)

IEBSCH REDUCNGPOWER CORRL-cuVEACTIONSCOlWENTS 002 910210 F

24 G

3 Reactor Trip on UV #3 RCP. See previous page. LER 91004 to follow.

t 1

1 ).

REASON.

2 ) hETHOD A-EQUIPMENT FAILURE (EXPLAIN)

E OPERATORTRANNG AND UCENSEEXAMINATION

.1: MANUAL B: MAINTORTEST F: ADMINISTRATIVE 2: MANUALSCRAM C REFUEUNG G OPERATIONALERRCR(EPLAIN) 3: AUTOMATICSCRAM D: ' REGt1ATORYRESTRICTION H: OTHER (EXPLAIN) 4: OTHER(EXPLAIN) 1

_