ML20133H777

Monthly Operating Rept for May 1985

ML20133H777
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	05/31/1985
From:	Orser W, Peterson L PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
WSO-394-85, NUDOCS 8508090512
Download: ML20133H777 (6)

Text

4 0 OPERATING DATA REPORT DOCKET NO. 50-344 DATE 6-5-85 C051PLETED BY L. S. Peterson TELEPHONE rsn23sss_3713 Ext. 496 OPERATING STATUS Trojan Nuclear Plant Notes g , g,;

May. I985

. 2. Reporting Period:

3411

3. Licensed Thermal Power (MWt):

1216

4. Nameplate Rating (Gross MWe):

1130 S. Design Electrical Rating (Net 5tWe):

1177

6. Slaximum Dependable Capacity (Gross MWe):

1080

7. Siaximum Dependable Capacity (Net 5tWe):

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

N/A N/A

9. Power Level To which Restricted.If Any (Net MWe):'

"I^

10. Reasons For Restrictions. If Any: .

11 tis Month Yr..to.Date Cumulative 744 3,623. 76.679.

11. Hours in Reporting Period 10.s 7 7A7 A 45.513.I

12. Number Of Hours Reactor Was Critica) 0.0 3,887.4 0.0

13. Reactor Reserve Shutdown Hours 30.0 2,749.5 45,085.0

- 14. Hours Generator On.Line . 0.0 3,249.0 ,

15. Unit Reserve Shutdown Hours "'** ***** * ' # ' "U *

16. Gross Thermal Energy Generated (MWH) 28,492. 2.942.494. 46.498.274.

17. Gross Electrical Energy Generated (MWH) _

43,953,633.

21,664. 2,803,108.

18. Net Electrical Energy Generated (MWH) 75.9 58.8 4.0

19. Unit Service Factor 75.9 63.0 4.0

20. Unit Availability Factor 53.1 2.7 71.6

21. Unit Capacity Factor (Using MDC Net) 68.5 50.7 2.6

22. Unit Capacity Factor (Using DER Net) 0.0 6.0 16.6

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months (Type.Date.and Duration of Each1:

. Refueling outage in progress.

July 9, 1985

25. If Shut Down At End Of Report Perind. Estimated Date of Startup:

Forecast Achieved

26. Units in Test Status (Prior to Commercial Operationi:

n/a n/n INITIAL CRITICALITY n/a n/a INITIA L ELECTRICITY n/a n/a COMMERCIAL OPERATION 8508090512 850831 (4/77)

PDR R

ADOCK 05000344 PDR gM op

s AVERAGE DAILY UNIT POWER LEVEL l

DOCKET NO: so_364 UNIT: Troian DATE: 6-5-85 COMPLETED BY: L. S. Peterson TELEPHONE: (503) 556-3713 Ext. 496 i

MONTH MAY 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER' LEVEL i (MWe-Net) (MWe-Net) 2 1 1017 17 -3 -

! 2 _

90 18 -4 3 -32 19 -5 4 -17 20 -4 5 -14 21 -4 1

6 -16 22 -4 7 -17 23 -4 8 -7 24 -4 9 -4 25 -4 1 10 -5 26 -4 11 -5 27 ~4 12 -6 28 ~4 13 -4 29 -5

-6 -4 14 30

-6 ~4 15 31 1

1 16 -4 I 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)

~~

DOCKET NO. 50-344 UNITSHU1 DOWNS AND POWER REDUCTIONS UNIT NAME Trnjnn DATE 6-5-8s COMPLETED fly T- R pnenrenn REPORTMONiil MAY 1985 TELErilONE (503) 556-1711 Ext. 496

. 3

-, .5 E 3 .Eh Licensee E*, -h*'t Cause & Corrective N. . Date g 3g  % ,g g & Event aT $'8 Atijon to H

$E $ 'N 0 yV j@g Report 8' . Pievent Recurrence 6

85-03 850502 S 713.9 C 1 NA EB BE Unit shutdown as scheduled for annual refueling outage.

I 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions S: Schedufed A. Equipment Failure (Explain) I-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3- Automatic Sc.am. Event Report (LER) File (NUREG-D Regulatory Restriction 4-Other (Explain) 0161)

E-Operator Training & License Examination F-Administrative 5 G-Oper.itional Errog (Explain) ,

Exhibit I- Same Source 03/77) Il Other IExplain) .

~ o

SUMMARY

OF OPERATING EXPERIENCE Docket No: 50-344 Date: 6-5-85 Completed By: L. S. Peterson Telephone: 503 556-3713 Ext. 496 Operations:

The plant began the month operating at 99% power while preparing for the annual refueling outage. Power reduction commenced at 0100 on May 2nd as planned. Prior to shutting down the reactor, testing was performed which demonstrated that the supply of feedwater to the steam generators could La transferred from the auxiliary feedwater system to the main feedwater system without using the feedwater control bypass valves. The main turbine was tripped at 0601, and the reactor was take subcritical (mode 3) at 0625 on May 2nd by manual insertion of the control rods. After performing re-quired testing, cooldown of the reactor coolant system commenced at 1230 on May 3rd. Entered mode 4 at 1824 on May 3rd. Entered mode 5 at 0313 on May 4th. Entered mode 6 at 1830 on May 10th.

Core unloading began at 2345 on May 17th, and was completed at 1620 on May 22nd. The lower internals were removed on May 23rd in preparation for inservice inspection of the reactor vessel welds, with the inspection being completed at month's end. On May 21st, an inadvertent safety injections occurred during testing of stream line pressure transmitters. One group of instrument technicians was testing reactor protection and engineered safeguards feature signals in Protection Set I while another group of instrument technicians was performing calibration checks on the steam pres-sure signals at the same time, completing the logic required for a safety injection based on one steam line being 100 psid lower in pressure than 2 of 3 other steam lines.

Major Safety-Related Maintenance:

1. Completed ultrasonic inspection of the reactor vessel welds (end of 10-year ISI period).

2. Commenced local leak rate testing of containment penetrations.

3. Commenced mechanical and hydraulic snubber inspections.

4. Completed 1, 3, and 5 year preventative maintenance testing (including overspeed trip testing) of east emergency diesel generator.

5. Commenced steam generator sludge lancing.

6. Performed steam generator T-tube inspection.

7. Performed functional testing of cast emergency diesel generator decouple switch modification.

8. Commenced swagelock fitting inspection program (including incore instru-mentation seal table modifications).

9. Commenced reactor trip breaker auto shunt trip modification.

% . 5 o Miscellaneous Maintenance:

1. Commenced replacement of various feedwater heaters.

2. Commenced disassembly and inspection of the high pressure turbine.

3. Continued inspection and repair of secondary side extraction and high energy piping.

4. Commenced inspection of 'B' heater drain pump, 'B' condensate pump, 'B' circ water pump.

5. Commenced inspection of main feedwater pump turbine.

6. Completed spent fuel pool reracking.

License Changes:

Amendment 106 to the technical specifications included changes regarding personnel overtime limitations, calibration of input sensors to the reactor trip based on turbine trip, and post-accident sampling program requirements.

Miscellaneous:

1. During inspection of the high pressure turbine, a broken diaphram partition blade was discovered. It is possible that this could have resulted in the high vibration turbine trip experienced on 3/9/85.

2. A visual examination of the fuel assemblies was conducted during core unloading. All the modified fuel assemblies (stainless steel pins and mini-grids) and unmodified fuel assemblies positioned at the former baffle-jetting joint locations were in good condition and no significant anomalies were noted. The upflow-modification to the reactor internals appears to be successful for the center-injection joints which had unmodified fuel positioned at them, unmodified fuel has not yet reoccupied the corner-injection joint positions.

3. Notification was recieved of increased seismic activity at Mt.

St. Helens. No noticeable effects have occurred at the Trojan site.

Note: The average daily power level (MWe-net) reported for April 28 in last month's report was based on having shifted to Pacific Daylight Savings Time, thus only a 23-hour day. When corrected to a 24-hour day basis the average daily power level was 1022 MWe-net.

/

. 'N, E i Portl.md General Electric Company l Trojan Nuclear Plant P.O. Box 439 Rainier, Oregon 97048 (503)556 3713 June 6, 1985 WSO-394-85 Office of Resource Management U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

In accordance with the Trojan Nuclear Plant Technical Specifications reporting requirements, the monthly report is submitted for May, 1985.

Sincerely, W. S. Orser General Manager WSO/GGB/LSP: pat Attachments c MOR Distribution File 93.24b c

I TE uf'4i l