ML20214X316

Monthly Operating Rept for May 1987

ML20214X316
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	05/31/1987
From:	Olmstead C, Ulmer F PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CAO-202-87, NUDOCS 8706160426
Download: ML20214X316 (7)

Text

' OPERATING DATA REPORT.

DOCKET NO.

50-344 DATE COMPLETED BY F. J. Ulmer TELEPHONE 503-556-3713 Ext. 495 OPERATING STATUS Trojan Nuclear Plant Notes April Report:

I. Unit Name: Line #15 Cumulative

. 2.' Reporting Period: May 1987 incorrectly. reported

3. Licensed Thermal Power (MWt):

3411 as 3887; corrected

4. Nameplate Rating (Gross MWe):

1216 to 3249 hours0.0376 days <br />0.903 hours <br />0.00537 weeks <br />0.00124 months <br />.

' 5. Design Electrical Rating (Net MWe):

1130

6. Maximum Dependable Capacity (Gross MWe):

1133 1075

7. Maximum Dependable Capacity (Net MWe):

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

N/h

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

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

This Month Yr to.Dete Cumulative 744 3624 94199

11. Hours In Reporting Period 0 2151 58774

12. Number Of Hours Reactor Was Critical 0 0 3887

13. Reactor Reserve Shutdown' Hours 0 2148 58188

14. Hours Generator On-Line 0 0 3249

15. Unit Reserve Shutdown Hours 0 7078495 184933817

16. Gross Thermal Energy Generated (MWH) 0 2360899 60645762

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

-3102 2247609 57429144

18. Net Electrical Energy Generated (MWH) 0 59.3 61.8

19. Unit Service Factor 0 59.3 65.2

20. Unit Availability Factor

-0.4 57.7 57.2

21. Unit Capacity Factor (Using MDC Net) 54.0

-0.4 54.9

• 22. Unit Capacity Factor (Using DER Net) 13.8 0 0.6

23. Unit Forced Outage Rate

. 24. Shutdowns Scheduled Over Next 6 Months (Type.Date,and Duration of Each):

N/A

25. If Shut Down At End Of Report Period. Estimated Date of Startup: June 15. 1987

26. Units in Test Status IPrior to Commercial Operation): Forecast Achieved N/A N/A INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY '

COMMERCIAL OPER ATION N/A N/A

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' AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-344 UNIT: Trojan-DATE: June 1987 COMPLETED BY: F. J..Ulmer TELEPHONE: 503-556-3713-ext 495 MONTH May 1987 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 -4 17 -4 2 -4 18 -4 3 -4 19 -4 4 -4 20 -4 5 -4 21 _s 6 -4 22 s 7 -4 23 .-4 8 -4 24 -4 9 -4 25 -4 10 -4 26 -4 11 -4 27 -4 12 -5 28 -4 13 - -4 29 -4 14' -4 30 -4 15 -4 31 -4

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l 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.

(9/77) i-

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DOCKET NO. ' 5 0- 34 4 '

UNITSHUTDOWNS AND POWER REDUCTIONS

. UNIT NAME Troian DATE Junn 1987 COMPIETED BY F 1 nlmar REPORT MONT1g Mav 1987 TELEPilONE snainnc_ w i7 t ext 495

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Cause & Owreceive  !'

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. Prevent Rerweence j 6 ._,

b 87-02 870401 S 744 C 1 N/A ZZ ZZ Annual refueling / maintenance i outage began April 1, 1987.

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r i 1 2 3 4 F: Forced Reason: Method: Exhibit G. Instr'uetlans

! S: Schedufed A Equipment Failure (Explain) 1-Manual for P ation of Data B Maintenance of Test 2-Manual Scram. Entry s for Licensee C Refueling J AutomaticSe:sm. Event ReparI(LER)FeeINUREG--

D-Regulatory Restriction 40ther(Explain) 0161) i E-Operator Training & Ucense Examination I F-Adndnistrative 5 G-Operational Errug(Explain) Exhibit I .Same S.iorce l ll-Othe IExplairi) i l'l/77) ,

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DOCKET NO: 50-344 DATE: May 1987 COMPLETED BY: F. J. Ulmer

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TELEPHONE: 503/556-3713

SUMMARY

OF OPERATING EXPERIENCE QEERATIONS The plant entered the month in Mode 6 preparing to refuel the reactor. On May 5 the reactor vessel head was lifted. On May 6 fuel movement bogan and on May 16 refueling of the reactor core was completed. Following refueling canal cleanup operations for potential hot' spots, the reactor vessel head was set,-retensioned,

.and the. plant entered Mode 5 at 2240 May 29.

On'May 12 and May 23 the fill line to the 'A' safety injector accumulator failed due.to apparent water hammer' caused by- -

backwards flow through a Kerotest valve. The pipe integrity is c

being evaluated for appropriate corre'tive action and pipe welds to theother accumulators have been inspected.

Du' ring _ ultrasonic testing (UT) of the main steam lines, apparent pipe wall thinning was discovered. After careful examination and material records review, the pipe thinning was determined to be from machiningLdone by the manufacturer, prior to initial installation. The evaluation is continuing to justify operation in the as-is condition.

The_ plant removed the 'A' and 'B' centrifugal charging pump rotors for inspection and found the pump casing cladding separated-from both pump. casings. These pumps have a carbon steel casing that are lined with stainless steel. The stainless steel is applied by weld overlay. This;aeparation has permitted the carbon steel to corrode. Corrective action was to purchase new centrifugal charging pumps made entirely of stainless steel. Currently the pumps _are being installed.

While x-raying a 10" line from the west moisture separator reheater to the reheater drain-tank, foreign objects were found laying in the bottom of the pipe. Since it is unknown as to where the objects came from, Plant Management had to consider the possibility of sabotage. The Federal Bureau of Investigation

-(FBI) is assisting on-site Security with the investigation.

Steam generator eddy current testing was completed on the 'B' and

'C' steam generators. One second row tube was plugged in the 'C' steam generator due to an apparent eddy current indication.

During a walkdown inspection the 'B' steam generator main feed line first off whip restraint and hanger they were found deformed and pulled loose from their mountings. An evaluation of the

L hanger and whip restraint mountings suggests inadequate design.

Further evaluation of the. design and corrective action is continuing.

MAJOR SAFETY RELATED MAINTENANCE e

1. Completed reactor core reload.

2. Completed steam generator eddy current testing of 'B' and 'C' steam generators (S/G) and plugged one tube in 'C' S/G.

3. Completed installation of Environmentally Qualified Thermocouple leads to new thermocouple /subcooling monitors located-in the Control Room.

t 4. 'B' train ESF outage for planned maintenance and testing was completed.

5. 'A' train ESF outage for planned maintenance and testing was completed.

MISCELLANEOUS MAINTE. HANG

1. Completed motor and flywheel inspection of 'B' reactor coolant pump.

2. Approximately 6000 spray nozzles were replaced in the' cooling tower with a new designed spray head due to failures'in the old designed spray nozzles.

3. Completed installation of a new main condenser unit and the two moisture separator reheaters to correct tube leak problems and eliminate all copper from the secondary systems.

4. Installation of P-250 computer uninterruptible power supply to prevent computer failure when transferring electric loads between the auxiliary building transformer and the startup transformers was completed.

LICENSE CHANGES Amendment 131 Major changes authorized by Amendment 131 include an increase in the surveillance intervals and out-of-service times for the reactor trip system analog in'strument channels.

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.:, 4 g -MISCELLANEOUS 4- ' Trojan was cited by the NRC for'an apparent failure to properly-

.. . ' complete! Quality. Assurance audit trending forms ~following QA

,  : audits.' :The violation was rated a Severity Level IV:and_did'not

. result-in~,a' monetary penalty.

The'NRC was'on-site ~during this period.to perform an' audit of.

various environmentally qualified equipment.

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Portland General Electric Company Trojan Nuclear Plant P.O. Box 439 Rainier, Oregon 97048 June 8, 1987 (503)556-3713 CAO-202-87 US Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

Monthly Operating Data Report In accordance with the Trojan Nuclear Plant Technical Specifications reporting requirements, the Monthly Operating Data Report is submitted for May 1987.

Sincerely,

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C. A. Olmstead General Manager Attachment-c: Mr. John B. Martin Regional Administrator, Region V US Nuclear Regulatory Commission Mr. David O. Kish Acting Director Department of Energy State of Oregon Ok 9

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