ML20151C305

Monthly Operating Data Rept for Mar 1988

ML20151C305
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	03/31/1988
From:	Olmstead C, Ulmer F PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CAO-143-88, NUDOCS 8804120311
Download: ML20151C305 (6)

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OPERATING DATA REPORT DOCKET NO.

50-344 DATE April 1988 COMPLETED BY F. J. Ulmer TELEPil0NE 503-556-3713 Ext. 495 OPERATING STATUS Trojan Nuclear Plant Notes

1. Unit Name:

2. Reporting Period: March 1988 3411

3. Licensed Thermal Power (MWt):

1216

4. Nameplate Rating (Gross MWe):

1130

5. Design Electrical Rating (Net MWe):

1153

6. Maximum Dependable Capacity (Gross MWe):

10 %

7. Maximum Dependable Capacity (Net MWe):

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

NA NA

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

10. Reasons for Restrictions.lf Any: NA ,

Thl Month YrAo Date Cumulative 744 2184 101520

11. Hours in Reporting Period 63411.5 744 2057.3

12. Number Of Houn Reactor Was Critical 0 0 3887

13. Reactor Reserve Shutdown Hours 2054.9 62726.6_

744

14. Hour: Generator on Line 0 3249 0

15. Unit Resene Shutdown Hours 6986367 198837203

16. Gross Thermal Energy Generated (MWH) 2535287 ,

857916 2367608 65213246

17. Gross Electrical Energy Generated (MWH) ,

A?17?R  ? ? /;114 5 61790652

18. Net Electrical Energy Generated (MWH) 61.8 100.0 94.1

19. Unit Senice Factor 94.1 65.0

20. Unit Availability Factor 100.0_

100.9_ 94.6 57.1

21. Unit Capacity Factor (Using MDC Net) 53.9 97.7 91.6_

22. Unit Capacity Factor (Using DER Net) 5.9 13.8 0

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Oser Next 6 Months (Type. Date,and Duration of Eachl:

Annual Refuelino Ontaan starts April 13. 1988 and is scheduled for 49 days.

NA

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

26. Units in Test Status (Prior Io Commercial Operation): Forecast Achieved NA NA INITIAL CitlTICALITY NA NA INITIAL ELECTRICITY '

NA NA COMMERCIAL OPER ATION (0/77) 8804120311 880331 PDR ADOCK 05000344 DCD (4 Sq R

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-344 UNIT: Trojan DATE: April 1988 COMPLETED BY: F. J. Ulmer TELEPHONE: 501 ;;6-1711 ext 495 MONTH $ arch 1988 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1107 17 1104 2 1109 18 1104 3 1110 19 1104 4 1109 20 1103 5 1111 21 1105 6 1112 22 1103 1088 23 1103 7

1077 24 1104 8

1109 25 1097 9 _

1110 26 1105 10 1106 27 1109 11 12 1108 28 1109 13 1106 29 1105 14 1106 30 1106 15 1104 31 1102 16 1106 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)

.O UNIT SIEUIDOWNS AND POWER REDUCTIONS DOCKET NO. 50-344 ,

- UNIT NAME Troian DATE Anril 198R NtPLETED BY P 1 fil mo r REPORT MONT11 March 1988 TELEPflONE rsn13 s s e, _7 713 ext 495

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6 None 1 2 3 4 T: Forced Reason: Method: Exhibit G. Instructions 5: Sctaeduled A Equipmeni Fat *are(Explain) I-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram. Entry Sheets for Ucemce C Refacting J AutomaticScam. Event Repnet (LEF.) Fee tNUREG-D Reguistory Restriction 4-Other (Explain) 0161)

E-Operator Training & Ucense Examinsilon F-Adninistrative 5 G-Operational Erries (Exptsta) .

Exhibit t .Saene Source t'J/77) Il-Othes (Explaisil

T TROJAN NUCLEAR PLANT Summary of Operating Experience March 1988 The plant entered the month in Mode 1 at 100% power.

Increasing Containment noble gas activity which was first noted in late February continued in early March. A small leak from the pressurizer vapor space was indicated. Several Containment entries were made in an effort to locate and repair the leak. On

!! arch 4, a packing leak on pressurizer steam space sample valve MO-5658 was found and isolated. Containment noble gas activity steadily decreased after this valve was isolated.

On March 7 at 1206 hours0.014 days <br />0.335 hours <br />0.00199 weeks <br />4.58883e-4 months <br />, power was reduced to 88% to shut down the north heater drain pump due to a steam leak at the pump gland follower. Power was returned to 100% at 1409 hours0.0163 days <br />0.391 hours <br />0.00233 weeks <br />5.361245e-4 months <br /> after the pump was isolated. Repairs to the pump were completed the following day. On March 8 at 2015 hours0.0233 days <br />0.56 hours <br />0.00333 weeks <br />7.667075e-4 months <br />, power was reduced to 95% to permit the heater drain pump to be restarted. Power was restored to 100%

at 2200.

On March 11 at 0011 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />, power was reduced to 90% for main turbine control valve testing. Power was returned to 100% at 0145.

On March 24 a single failure mechanism of the nitrogen pressure regulator for the Nitrogen Supply System to the Containment electrical penetrations was discovered. The single failure mechanism had the potential to pressurize the penetration seals to above their design pressure. Nitrogen to the seals was isolated, and a shiftly check of Nitrogen pressure on the seals was commenced. A four-hour report to the NRC was made on this finding.

On March 25 ac 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />, power was reduced to 90% for main turbine control valve testing. Power was returned to 100% at i 0231.

On March 27 at 0501 hours0.0058 days <br />0.139 hours <br />8.28373e-4 weeks <br />1.906305e-4 months <br />. a grid disturbance caused by the

, tripping of ? Coalstrip units lowered system frequency causing power to increase to 102.3%. Power was immediately reduced to j 100%.

On March 28 it was discovered that four feedwater line drain l valves which are Containment isolation valves were open to permit

! monitoring for feed line pressure excursions. A one-hour report I was made to the NRC and the valves were closed.

l l

Maintenance Repaired instrument problem on 'A' auxiliary feedwater pump speed controller.

Repaired 'B' Joy air compressor which had been tripping on high temperature.

-- Repaired steam leak on north heater drain pump.

License Amendments No license amendments were received during March.

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m 455 1 i Portland General Electric Company i

Trojan Nuclear Plant April 6, 1988 71760 Columbia Riser llwy l CAO-143-88  :

Rainier, Oregon 97048 (503) 556-3713 I

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 March 1988.

Sincerely, c .O.QM C. A. Olmstead General Manager Attachment c Mr. John B. Martin Regional Administrator, Region V US Nuclear Regulatory Commission Mr. William Dixon, Director Department of Energy State of Oregon R9sident Inspector POR Distribution d

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