ML20237K667

Monthly Operating Rept for Mar 1987

ML20237K667
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	03/31/1987
From:	Olmstead C, Ulmer F PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CAO-123-87, NUDOCS 8708190361
Download: ML20237K667 (6)

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OPERATING DATA REPORT DOCKET NO: 50-344 DATE: March 1987 COMPLETED BY: F. J. Ulmer TELEPHONE: 503-556-3713 The plant began the month at full power and continued at full power until March 20, 1987 when the plant began coasting down in power by about 1.5% per day in preparation for 1987 Refueling Outage.

During the first part of the month the plant received the balance of 48 new Region M fuel assemblies needed for Cycle 10 reload.

During the period extensive preparations continued for major outage projects such as main condenser and moisture separator reheater replacement, steam generator maintenance, refueling, and numerous plant design changes.

An immediate report was made to the NRC on March 9, 1987 concerning the analysis of postulated flooding in the plant's Turbine Building due to rupture of the circulating cooler system piping. As a result of a review of previous analyses that assumed the failure of two cooling water lines in the circulating water system, the preliminary determination was made that water might not be released quickly enough from the building through vents to prevent the flooding of safety equipment in the building. The building siding was already removed from the building for condenser replacement when this preliminary determination was made; thus, there is no concern with operability. Evaluation is still underway, and no permanent corrective action will be planned until final studies have been completed in April.

On March 19, 1987 during day shift, a high voltage power supply was being disconnected from a radiation monitor when it come in contact with the 120 volt power supply to the monitor. This caused a fuse to blow resulting in loss of power. The loss of power effected several radiation monitors and resulted in a voltage dip on preferred instrument bus Yll. The voltage dip resulted in several controllers shifting from auto to manual and the loss of one intermediate and power range nuclear instrument. The fault was repaired promptly and all systems were returned to service.

8708190361 870331 PDR R

ADOCK 05000344 PDR e1q[

The plant received the new moisture separator reheaters (MSR) and new condenser modules to be installed during the 1987 Refueling Outage.

At 2000 on March 31, 1987 the plant began a power reduction from 85% to 30% in preparation for the complete shutdown and commencement of the 1987 Refueling Outage on April 1, 1987.

The primary-to-secondary steam generator tube leakage remained less than one gallon per day and the secondary condensate ,

oxygen remained at about 3 ppb for each train. The reactor i coolant system dose equivalent icdine concentration remained constant at about 12% of the specification limit. l MAJOR SAFETY RELATED MAINTENANCE

1. 'B' train ESP outage for planned maintenance and testing was completed.

2. 'B' train spent fuel pool exhaust system charcoal filters were replaced and the system tested satisfactorily.

Work continued on the 'A' train of the spent fuel pool exhaust.

MISCELLANEOUS MAINTENANCE Rebuilt and returned to service the non-safety electric auxiliary feedwater pump.

l LICENSE CHANGES Amendment 124 was issued to revise the Trojan Surveillance Requirements to reflect a change in the actuation logic for component cooling water system valves. This revision is consistent with guidance provided in NRC Generic Letter 83-10d dated February 8, 1983, regarding resolution of TMI Action Item II.K.3.5.

Amendment 123 was issued to revise Trojan Technical Specifi-cations to allow rod control cluster assemblies to be positioned at greater than 225 steps versus 228 steps as previously required.

MISCELLANEOUS During this month the NRC performed an audit of the onsite Quality Assurance Group, an audit of the P-250 safety parameter display system computer, and an Administration audit.

Also, during the month the plant held Radiological Emergency Response Plan drills for the Operational Support Center (NRC witnessed), the Technical Support Center, the Emergency Operations Facility, the Company Support Center, and the Control Room.

OPERATLNG DATA REPORT DOCKET NO. 50-344 DATE CONIPLETED BY F. J. Ulmer TELEPHONE 503-556-3713 Ext. 495 i OPERATING STATUS Trojan Nuclear Plant Notes

1. Unit Narue:

2. Reporting Period: Mnrch 1987

3. Licensed Thennal hwer (MWt):

3411

4. Nameplate Rating (Gross SlWe):

1216

5. Design Electrical Rating (Net MWe): 1130 ,

1133

6. Shiinum Dependable C.tpacity (Gross MWe):

1075

7. Maximum Dependable Capacity (Ntt MWe): _ _ _ _

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

N/A

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

1 r< 10. Reasons For Restrictions.If Any. N/A

l This Month Yr..to.Date Cumulative 744 92736

11. Hours in Reporting Period 7AA 58773

12. Number Of Hours Reactor Was Cri'.ieal 0 3887

13. Reactor Reserve Shutdown Hours 744 sn1a7

14. Ilours Generator On Line 0 ,any iS Unit Reserve Shutdown Hours 23692s6 7078499 1Aao77917 K. Gro's Thermal Energy Generated (MWH)

17. Gross Electrical Energy Generated (MWH) 804517 , _ ,

2360899 60645762

13. Net Electrical Energy Generated (MWH) 768805 2255603 57437138 100 99.4 62.?

19. Unit Service Factor 66.9 100 99.4

20. Unit Availability Factor' 96.1 97.1 58.1; j

21. Unit Capacity Factor (Using MDC Net) . _ _

91.4 92.4 54.8 j

22. Unit Capacity Factor (Using DER *iet) - _ _

0 0.6 13 . J, l

's 23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months (Type. Dare,ard Duntion of Each):

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J

25. If Shut Down At End Of Report Period. Estimated Date of S:artup. -

26. Units in T st Status (Prior to Cmemercial Operation): Forecast Achie$ed INITIA L CltlTICALITY N/A jijL, INITIAL ELECTRICITY N/A N/A N/A N/A COMMEllCI A L OPER ATION (0/77)

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-344 UNIT: Troian DATE:

COMPLETED BY: F.J. Ulmer TELEPHONE: 503-556-3713 Cxt. 495 MONTH March 1987 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1075 17 1072 2 1070 18 1076 3 1064 19 1073 4 1060 20 1058 5 1064 21 1043 6 1074 22 1035 6

7 1075 23 1014 8 1074 24 1008 9 1072 25 985

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10 1069 ,

26 964 11 1071 27 957 12 1068 28 945 -

13 1070 29 930 ,

14 1072 30 919 15 1072 31 832 16 1072 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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Portland General Electric Company Trojan Nuclear Plant P.O. Box 439 April 6, 1987 Rainier, Oregon 97048 CAO-123-87 (503)556-3713 US Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

Monthly Operating Data Report In accordance with the Trojan Nuclear Plant Technical Specifi-cations reporting requirements, the Monthly Operating Data Report is submitted for March 1987.

Sincerely, C. A. Olmstoad General Manager Attachment et Mr. John B. Martin Regional Administrator, Region V US Nuclear Regulatory Commission Mr. David O. Kish Acting Director Department of Energy State of Oregon .

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