ML20247F265
| ML20247F265 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 08/31/1989 |
| From: | Ulmer E, Yundt C PORTLAND GENERAL ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| CPY-212-89, NUDOCS 8909180119 | |
| Download: ML20247F265 (6) | |
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. Portland Gencral Electric Company Tiojan Nuclear Plant 71760 Columbia River liwy Rainier, Oregon 97048 (503) $56-3713 September 6, 1989 CPY-212-89 US Nuclear Regulatory Commission l
Document Control Desk 1
Washington, DC 20555 j
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. Gentlemen:
i Monthly operating Report I
In.accordance.with the Trojan Nuclear Plant Technical Specifications reporting requirements, the Monthly operating Data Report is submitted for August, 1989.
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Sincerely,
'l C.
Yundt General Manager 1
CPY:sp Attachment c:
Mr. John B. Martin Regional Administrator, Region V US Nuclear Regulatory Commission Mr. David Stewart-Smith Department of Energy State of Oregon Resident Inspector MOR Distribution
.6909190119-890831
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TROJAN LTCLEAR PLANT Trojan Operating Report Aurust 1989 OPERATIONS The plant begar the month in Mode 3, with troubleshooting of the rod control system in progress.
On July 31 rod K-14 bece.me mispositioned with respect to other rods as it was being withdrawn. A ter.m comprised of various Nuclear division and Westinghouse personnel resolved the cause of the positioning, which appeared to be mechanical interference with rod movement from a small piece of material which had become caught between a rodlet and guide tube. Rod cycling and drop testing was performed to assure that the material had cleared.
The plant was taken critical on August 1.
During testing of the Main Turbine on August 2, excessive vibration caused a turbin3 trip at about 400 rpm.
Investigation showed the problem to be a deflection in a coupling due to a small pin being lodged between the coupling and its cover.
The coupling was reassembled and the turbine successfully retested.
On August 3, the turbine generator was brought up to 185 MWe for approximately three hours and it ran smoothly with low vibration. The electrical overspeed trip of the turbine was successful, but the mechanical overspeed (trip) did not function. Adjustments were made and the mechanical overspeed trip test was successfully completed.
On August 9, the plant tripped on over temperature delta-temperature (OTAT).
The bistables for one channel of OTAT had been tripped for making settings on the nuclear instrumentation. A spurious signal on a second OTAT channel completed the two-out-of-four logic to cause the reactor trip. All safety systems functioned normally after the trip.
The Reactor was restarted on August 14 and the plant synchronized with the grid on August 15.
After plant startup the loop 4 OTAT began to experience additional spurious alarm signals.
Extensive testing and troubleshooting was conducted to locate the source of the spurious signals.
On August 29 the probable source of the spurious signal was isolated to a loose connection in a lead / lag module for the loop 4 OIaT. The lead / lag module was replaced and the system successfully retested on August 30.
On August 31 a containment entry was made to locate and isolate the source of slowing increasing gaseous activity in containment. No source was positively identified.
On August 31 a problem was discovered with the rod control system while performing a periodic operating test.
Shutdown Bank "C" would not drive in by rod control.
The rod control system was placed in the manual mode of operation and troubleshooting was commenced.
The problem was isolated to a failed Rod Control System logic card.
The failed card was replaced, the system retested, and restored to normal operation.
The plant ended the month in Mode 1.
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MAINTENANCE
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Significant' maintenance completed during.this period includes:-
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Repairs to the "B". Circulating Water Pump.
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- Repaired Hydrogen leakage from'the Main' Generator.
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OPERATING DATA REPORT 50-344 DOCKET NO.
DATE Son
- 1989 COMPLETED BY F.' J. Illmer TELEPHONE 503-sss 3713 Ext.4 4 95 OPERATING STATUS Trojan Nuclear Plant Notes g, y,gg %.
August. 1989
. 2. Reporting Period:
3411
' 3. Licensed Thermal Power (MWt):
1216
- 4. Namepiste Rating (Gross MWe):
1130
- 5. Design Electrical Rating (Net MWe):
1153
- 6. Maximum Dependable Capacity (Grom MWe):
1095
- 7. Maximum Dependable Capacity (Net MWe):
- 8. If Changes Occur in Capacity Ratings (1tems Number 3 Through 7) Since Last Report.Give Reasons:
. N/A N/A
- 9. Power LevelTo Which Restricted.lf Any/ A(Net MWe):
N
- 10. Reasons For Restrictions.lf Any:
' 11ds Meath Yr so Date Commist.ve 744 5831 113951
- 11. Hows in Reporting Peded 608.6 2920.9 70199.9,
- 12. Number Of Hours Rosesor Wes Critient 0
0 3387
- 13. Reacter Reserve Shutdown Hows 515.8 2796.2 69331.1
- 14. Hours Generator On.Line 0
0 3744
- 15. Unit Reserve Shutdown Hours 1479884 9224869 220825869
- 16. Genes Thermal Energy Generated (MWH) 478074 3108572 726 4R024
- 17. Gsees Electrical Energy Generated (MWH) 444325 7926554 6A744674
- 18. Net Elsesrial Energy Generated (MWH) 69.3 48.0 60.8
- 19. Unit Service Facto, 69.3 48.0 63.7
- 20. Unit Availability Factor 54.5 45.8 56.4
- 21. Unit Capecity Fac'ter (Using MDC Net) 52.9 44.4 53.3
- 22. Unit Capscity Factor (Using DER Net) 20.5 4.5 13.5
- 23. Unit Forced Outage Rate
- 24. Shutdowns Scheduled Over Next 6 Months (Type. Dete.snd Duration of Eacht:
No rie -
N/A
- 25. If Shut Down At End Of Rtport Period Estimated Date of Startup:
- 26. Units in Test Status (Prior to Cominercial Operation):
Ferocast Achieved N/A N/A INITIAL CRITICALITY 1
1 INITIAL ELECTRICITY 1
1 COMMERCIAL OPERATION (0/77)
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AVERAGE DAILY LTIT POWER LEVEL y
DOCKET NO:.50-344 LMIT: Trojan DATE: Sept embe r, 1989 COMPLETED.BY:_F.-J. U1mer TELEPHONE: s01 s s f,- 7 7 1 1 ext 4495 MONTH _ 'Au gu s t, 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1-
-33 17 1055 4
2~
-33
'18 1062 3
-2 19 1065 4
-25 20 1066 5
181 21 1067.
6 222 22 1067
~7 315 23 1066 8-435 24 1069 9
246 25 1063 10
-38 26 1062 11
-38 27 1066 12
-38 28 1064 13
-38 29 1062 14-
-38 30 1062 15 452 31 1063 16 986 INSTRUCTIONS On this format, list the average daily unit power level in MiJe-Net for each day in the reporting month. Compute to the nearest whole megawatt.
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