ML20043E205

Monthly Operating Rept for May 1990 for Comanche Peak Steam Electric Station Unit 1.W/900608 Ltr

ML20043E205
Person / Time
Site:	Comanche Peak
Issue date:	05/31/1990
From:	Buschbaum D, William Cahill TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
TXX-90207, NUDOCS 9006120156
Download: ML20043E205 (5)

Text

._. -

w L .. .' o maammmmmme MM Log # TXX-90207 1

I7 File # 10010 Ref. # 10CFR50.36 lilELECTRIC

s. June 8, 1990 W.J.Cahm lurcutive Vke President '

U. S. Nuclear Regulatory Commission A,tn: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEN 4 ELECTRIC STATION (CPSES)

DOCKET NO. 50-445

• MONTHLY OPERATING REPORT FOR MAY 1990 l 4 Gentlemen:

Attached is the Meathly Operating Report for May 1990 prepared and submitted pursuant to Spec'.fication 6.9.1.5 of Appendix A (Technical Specifications) to the Comanche Peak Unit 1 Steam Electric Station Operating License.

Sincerely, William J. Ca ill, Jr.

JLR/vid  :

Attachment x'~ c - Mr. R. D. Martin, Region IV  !

Resident Inspectors, CPSES (3)

( j l

l I

9006120156 900531 ADOCK0500ggG (,

{DR

- - . - ~ . . Jv 1

• Attaphment ko 1XX-90207 Page.1 of 4' '

COMANCHE PEAK STEAM ELECTRIC STATION, UNIT 1 N11C MONTHLY OPERATING REPORT DOCKETNO: 50-445 UNIT: CPSES1 DATE: June 6.1990 COMPLETED BY: D. E. Biierhhniim TEl.EPHONE: 817 897 5851

- OPERATING STATUS

1. Reporting Period: MAv,.1292 Gross hours in reporting period: Zid_

2i Currently authorized poweil evel (MWt): 1411 Max. depend. capacity (MWe Net): 127. Design Electrical Rating (MWe Net): .i1Mt

3. Power levol to which restricted (if any) (MWe Net): bl0AR

4. Reasons for restriction (if any):

THIS MONTH YRTO DATE CUMULATIVE

5. Number of hours reactor was critical 621.1 773.6 773.6

6. Reactor reserves shutdown hours 122.9 122.9 122.9

7. Hours generator on line 530.1 653.9 653.0

8. Unit reserve shutdown hours 0 0 0 y

9. Gross thermal energy generated (MWH) 748,810 875,945 875,945

10. Gross electrical energy generated (MWH) if 7,108 211,948 211,948 Y 11. Net electrical enorgy generated (MWH) 165,742 174,693 174,693

+ 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 MDC) N//s N/A N/A

17. Unit capacity factor (Using Design MWe) 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):

Planned Trips for Startup Phase Testing

20. If shutdown at end of report period, estimated date of startup: N/A 21, Units in test status (pridr to commercial operation): FORECAST ACHIEVED Inltlal Criticality 9004(3 900403 Initial Electrictty 900501 900424 Commercial Operation 900721 1

1 1

s

( h[technent to TXX-90207

).Page 2 of 4 ,

[' -

AVERAGE DAILY UNIT POWER LEVEL l- ,

DOCKETNO: 50-445 l

l. UNIT: CPSES1 l DATE: June 8.1990  ;

COMPLETED BY: D. E. Buenhhaum TELEPHONE: 817-897 5851 _ l MONTH: MAY 1990 CAY AVERAGE DAILY POWER LEVEL [MY AVERAGE DAILY POWER LEVEL (MWe Net) (MWe Net) ,

1 198 17 410

'2 a 188 18 40L -

it' 3 224 19 378

.4 378 20 182 5 408 21 209 6 385 22 67 7 402 23 0 8 280 24 0 9 419 25 0 10 0 26 111 11 101 27 0  ;

12 ,., 32 28 110 13 0 29 344 14- 195 30 444 15 419 31 443 16 431 2

Attachme.nt to TKX 90207 Pepe 3,Gf 4 '.

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKETNO: 50-445 UNIT: JOSES 1 DATE: ny&&1990 COMPLETED BY: I Q 3 f.. h ha u m TELEPHONE: 817 897-5851 MONTH: MAY 1990 5/1 0000 Unit began month in MODE 4 performing Initial Startup Testing.

5/9 1506 Reactor Trip on Low Low Steam Cenerator Level, Unit enterk MODE 3. Lost level due to loss of Feedwater to on0 Steam Generator due to Technician error working on Pressure transmitter for Feedwater Cdntrol. LER 90 013 to follow.

5/10 1334 Unit entered MODE 2. ,

5/10 1559 Unit entered MODE 1.

5/12

• 1022 Unit entered MODE 2 experiencing problems with a Feedwater Control Valve.

Subsequently determined that disk had separated from the stem. Vane was I repaired.

5/14 0308- Unit entered MODE 1.

5/22 0931 Unit entered MODE 3 as a preplanned result of Loss of Offsite Power Test o' Initial Startup Program. During the resulting plant trip, one RCS PORV tifted for approximately 4 seconds (normal response).

5/25 2112 Unit entered MODE 2.

l.

l 5/26 0259 Unit entered MODE 1. I 5/27 0128 Manual Reactor Trip, Unit entered MODE 3. Trip in response to failed shut j l

Feedwater Control Valve and anticipated low Steam Generator level. Failure due to shorted on Feedwater Control Valve. LER 90-017 to follow.-

l 5/27 1811 Unit entered MODE 2.

i ,

l 5/28 0748 Unit entered MODE 1. l 1

l l

5/31 2400 Unit ended month in MODE 1 continuing Initial Startup Testing. I l 1 i

I 3 i 4

- . . - - - .. . - . . - . . . . . . . - . . - . . . .~ .. - .

Attachment to TXX-90207 Page 4 cf 4 UNIT SHUTDOWNS AND POWER REDUCTIONS DOOErNO- 50-445 UNIT: CPSES1 DATE- June 6.1990 COMPLETED BY: D. E. Rwhan TELEPHOE- 817-897-5851 REPORT A00 NTH MAY 1990 PETHODOF -

TfPE SHUTTINGDOWN ,

FFORCED DURATION TEREACTOROR M DATE S:SCEDULED fHOURS) ASON REDUCING POWER CORRECTNE ACTIONSCOMMtiNTS 001 900509 F 41.4 G 3 Loss of Feedwater Control, see previous page. (LER 90-013 to follow.)

002 900512 F 43.7 A 1 Feedwater Control Valve Disk Separation. See previous page.

003 900522 S 95.5 8 3 Part of planned Loss of Offsite Power Test per initial Startup Program.

004 900527 F 33.3 A 2 Failure of Feedwater Control Valve Solenoid. See previous page. (LER 90

-017 to follow.)

1) MASON 2)PETHOD A- EQUIPMENT FAILURE (EXPLAIN) E. OPERATOR TRANNG AND UCENSE EXAMINATION 1: MANUAL B: MAINTORTEST F: ADMINISTRATIVE 2: MANUALSCRAM

, C: REFUEUNG G OPERATiONALERROR(EXPLAIN) 3: AUTOMATICSCRAM

', D: REGULATORYRESTRICTION H- OTHER(EXPLAIN) 4: OTHER (EXPLAIN)

'. 4 s . .. m , .