ML20246F768

Monthly Operating Rept for June 1989 for Trojan Nuclear Plant

ML20246F768
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	06/30/1989
From:	Ulmer F, Yundt C PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
CPY-152-89, NUDOCS 8907140025
Download: ML20246F768 (5)

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Portland General Electric Company

, Trojan Nuclear Plant

. 71760 Columbia River Hwy-Rainier. Oregon 97048 July 7, 1989 (503) 556-3713 CPY-152-89 US' Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

' Monthly Operating Report

'In accordance with the Trojan Nuclear Plant Technical Specifications reporting requirements, the Monthly Operating Data Report is submitted for June, 1989.

Sincerely, C. Yundt General Manager CPY:sp Attachment c:. Mr. John B. Martin Regional Administrator, Region V US Nuclear Regulatory Commission l

Mr. William T. Dixon Department of Energy State of Oregon

!. Resident Inspector MOR Distribution i

TE'f 8907140025 890630 PDR ADOCK 05000344 'l R. PDC

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i OPERATING D ATA REPORT l DOCKET NO. 50-344 DATE _Ju]v. 1989 COMPLETED BY F. J. Ulmer TELEPHONE s03-556-3713 Ext.4495 OPERATING STATUS Trojan Nuclear Plant Notes

1. Unit Name:

. 2. Reporting Period: 1nna 1oA4

3. Licensed Thermal Power (MWt):

3411

4. Nameplate Rating (Gross MWe);

1216 j l

5. Design Electrical Rating (Net MWe): 1130

6. Maximum Dependable Capacity (Gross MWe): 1153

7. Maximum Dependable Capacity (Net MWe): _

1095

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7)Since last Report, Give Reasons:

N/A

9. Power Level To Which Restricted,lf Any (Net MWe): N/A

10. Reasons For Restrictions.lf Any: N/A .

His Month Yr to-Date Cummintive 720 4343 112467

11. Hours in Reporting Period 0 2280.4 69559.4

12. Number Of Hours Rosetor Was Critical 0 0 3387

13. Reactor Reserve Shutdown Hours .

0 2280.4 68815.3

14. Hours Generster On.Line 0 0 3249

15. Unit Reserve Shutdown Hours 0 774498s 73o,asons

16. Gress Thermal Energy Geeersted (MWH)

17. Gross Electrical Energy Generated (MWH) 0 , _ ,

2630498 72159950

-3270 2494569 68365909

18. Net Electrical Energy Generated (MWH) 0 52.5 61.2

19. Unit Service Factor 0 52.5 64.1

20. Unit Availability Factor

21. Unit Capacity Fac' tor (Using MDC Net) _

.4 52.5 56.8

.4 s0.8 53.8

22. Unit Capac!ty Facter (Using DER Net) 0 0 13.4

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months (Type. Dete. and Duration of Eschi:

25. If Shut Down At End Of Report Period. Estimated Date of Stestup: Mid Julv. 1989

26. Ur.:as in Test Status (Prior to Commercial Operation): Foevcast Achieved N/A N/A INITIAL CRITICALITY N/^ N/^

INITIAL ELECTRICITY COMMERCIAL OPER ATION N/A N/A (0/77)

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. AVERAGE DAILY UNIT POWER LEVEL

. 1

,.. DOCKET NO: 50-344

,. UNIT: Trojan

. .DATE: Jul y, 1989 COMPLETED BY:_F . J. Ulmer TELEPHONE: 501 s s s _171 T ext 495-t MONTH June, 1989 DAY AVERAGE DAILY POWER LEVEL DAY' AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 -4 17 -4 2 -4 18 -4 3 19 -5 4 -4 20 -4 5 -5 21 -4 6- -4' 22 -4

-7 -5 23 -5 8 -5 24 -5 9 -5 25 -6 10 -5 26 -6 11 -4 27 -5 12 -4 28 -4 13 -5 29 -4 14 -4 30 -5 15 -5 31

~4 16 INSTRUCTIONS on this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

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TROJAN NUCLEAR PLANT Trojan Operating Report June 1989 OPERATIONS The plant began the month in Mode 5, with steam generator inspections in progress, and the reactor refueled.

Eddy Current testing on the four steam generators was begun May 22. On June 12 unexpected tube flaws were found in the "B" steam generator consisting of circumferential cracks from the inside diameter of the tube, just below the top of the tube sheet. Additional testing of all steam generator tubes, on the hotleg side, for the presence of circumferential cracks was determined to be required. Tubes with significant circumferential cracking will be stabilized to prevent them from damaging adjacent tubes if they should fail during the next cycle. Tube testing, plugging and stabilizing in all four steam generators continued through the end of the month.

Testing of Electrical Penetration connections commenced on May 3. A couple of electrical cable wires had pulled loose from a containment electrical penetration assembly during seal replacement. Several more connections pulled loose during testing and the scope of the work was increased to test more connections. The testing continued through the end of the month.

Flux thimble testing was conducted from May 21 to May 25. The evaluation of l testing was completed at the beginning of this month and nine thimble tubes I have been plugged due to unacceptable amounts of thinning in their walls.

On June 7 the plant suffered a minor fire (smoke only) due to a rub between the rotor and stator in the "B" Circulating Water Pump. This rub damaged several windings in the pump and it has been sent to California for repair.

The repairs may not be complete until after the expected startup date in July.

The plant may be limited to the 50-60% power range until the damaged pump is returned to service.

The plant ended the month in Mode 5, with steam generator inspections in progress, and the reactor drained to 60' 9" and vented.

l MAINTENANCE l

Significant maintenance completed during this period includes:

Reactor Coolant Pump flange bolt work.

Main Turbine Generator cleaning and reassembly.

Main Turbine Diaphragm repair and reassembly.

Relocation of the Hydrogen Tanks APPLOVED M Pla efal Manager 1

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