ML20207F660
| ML20207F660 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 09/30/1986 |
| From: | Orser W, Ulmer F PORTLAND GENERAL ELECTRIC CO. |
| To: | NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| WSO-345-86, NUDOCS 8701060174 | |
| Download: ML20207F660 (6) | |
Text
.
o OPERATING DATA REPORT 50-344 DOCKET NO.
DATE 10-3-86 COMPLETED BY F.
J.
Ulmer TELEPHONE 503-556-3713 Ext. 495 OPERATING STATUS Notes Trojan Nuclear Plant
- 1. Unit Name:
Sentomhor 1986
. 2. Reporting Period:
3411
- 3. Licensed Thermal Power (MWt):
1216
- 4. Nameplate Rath.g (Gross MWe):
1130
' 5. Design Electrical Rating (Net MWe):
1100
- 6. Maximum Dependable Capacity (Gross MWe):
1050
- 7. Maximum Dependable Capacity (Net MWe):
- 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):
N/A
- 10. Reasons For Restrictions. If Any:
This Month Yr to.Date Cumulative 720 6551 88367
- 11. Hours In Reporting Period 599.5 4890.9 54449
- 12. Number Of Hours Reactor Was Critical 0
0 3887
- 13. Reactor Reserve Shutdown Hours 587.7 4816.1 53870
- 14. Hours Generator On.Line 0
0 3249
- 15. Unit Reserve Shutdown Hours 1964093 15697412 170652217
- 16. Gross Thermal Energy Generated (MWH) 646754 5073346 55891662 l
- 17. Gross Electrical Energy Generated (MWH) 612902 4810672 52901976 l
- 18. Net Electrical Energy Generated (MWH) 81.6 73.5 61.0
- 19. Unit Service Factor 81.6 73.5 64.6
- 20. Unit Availability Factor 81.1 69.9 55.6
- 21. Unit Capacity Factor (Using MDC Net) 1 75.3 65.0 53.0 l
- 22. Unit Capacity Factor (Using DER Net) 5.4 4.0 14.7 l
- 23. Unk Forced Outage Rate
{
- 24. Shutdowns Scheduled Over Next 6 Months (Type. Date.and Duration of Eachl:
.N/A l
N/A l
- 25. If Shut Down At End Of Report Period. Estimated Date of Startup:
- 26. Units In Test Status (Prior to Commercial Operation):
Forecast Achieved l
/A N/A INITIAL CRITICALITY N/A N/A INITIAL ELECTRICITY N/A N/A COMMERCIAL OPER ATION 8701060174 861031 PDR ADOOK 05000344 (9/77)
R PDR j
.TE 89 l
'l l
[s.
AVERAGE DAILY UNIT POWER LEVEL' DOCKET NO: 50-344 UNIT: ~ Trojan DATE: 10-3-86 COMPLETED BY: F.
J.
Ulmer-TELEPHONE: 503-556-3713 Ext. 495 MONTH September 1986 DAY AVERAGE DAILY POWER LEVEL DAY
= AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1070 1
614 17 1068 2
- 21 18 3
- 25 1007 19
- 36' 1079 4
20
- 29 1079 5
21 6
.34 1079 22 430 7
23 1079
.8-1067 24 1081 9
1066 25 1080 1077 10 1069 26 1080 11 1070 27 12 1063 1081 28 1078 13 1075 29 1078 14 1072 30
"/"
-15 1072 31 16 1070
. 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 whcle megawatt.
(9/77)
O 50-344 m
UNITSilUTDOWNS AND POWER REDUCTIONS DOCKET NO.
UNIT NAME Trolan t
DATE 10-3-86 COMPLETED lIY F.
J.
In mo r-REPORT MONTil September 1986 TELErilONE 501-556-1711 Ext. 495
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Licensee E*
E%
Cause A Csurective No.
Date g
'3=
g jje Event g?
$.3 Action to y0 Prevent Recurrence H
fE e
jgg Report sr in U c5 86-09 860901 F
132.3 A
1 n/a IIC llTExch During full power operations, a condenser tube plug failure caused secondary-side water chemistry to fall outside the operational specifications, forcing a manual shutdown.
The condenser tube plug was replaced, the condensers were inspected, secondary water j
chemistry was returned to operational specifications, and the plant was returned to power.
i I
2 3
4 F: Forced Reason:
Method:
Exhibit G. Insaractions S: Scheduled A-Equipment Failure (Explain)
I-Manual for Preparation of Data i
j B. Maintenance or Test 2 Manual Scram.
Entry Sheets for Lleensee C-Refueling 3 AusomsticSe: m.
Event RepewI (LER) Fife (NUREG.
D-Regi'!atcry Restriction 4-01her (Explain) 0161) l E-Operator Training & Ucense Examination F-Administrative 5
G Operational Errog(Explain)
Exhibit I-Some Simree (9/77)
II-Other (Explairil l
a
- r TROJAN NUCLEAR PLANT DOCKET NO
50-344
SUMMARY
OF OPERATING EXPERIENCE DATE:
10-03-86 COMPLETED BY:
F.
J.
Ulmer TELEPHONE:
503-556-3713 OPERATIONS:
The plant began this period at 100% power level.
On September 1 at 1313 secondary-side water high conductivity alarms were received that indicated a rupture of a condenser tube.
Due to the secondary water chemistry being out of specification, the turbine was taken off-line at 1448 and the reactor shutdown at 1840.
A condenser inspection revealed a missing tube plug.
The missing plug was from a tube that had been cut out several years ago for metallurgical examination.
When the plug came out circulating water entered the condenser, causing deterioration of secondary water quality.
The tube was replugged with a newer type mechanical plug and also a second plug was installed on the condenser side of the tube sheet.
Additionally, thirty other plugged tubes were also double plugged on the condenser side and the tubes end slightly crimped.
During the condenser work the plant was maintained in hot standby while steam generator chemistry improved and secondary water supplies were restored.
On-September 3, while in hot standby the
'B' reactor coolant pump incur-red a high temperature alarm on the lower radial motor bearing.
The plant was cooled down and depressurized to inspect the pump bearing.
The bearing was found in good condition.
A loose temperature detector signal cable connection was found which was the cause of the erroneous temperature indication.
The cable was securely terminated and corre-sponding sensor cables on other pumps were inspected to ensure they were properly secured.
On September 5, the plant heated up and the reactor regained criticality on September 6.
The turbine was synchronized onto the grid at 0305 on September 7.
Full power was reached at 2143 that day after a hold on power at 40% for water chemistry cleanup.
On September 19, plant load was reduced to 85% power to perform reactor surveillance testing and was returned to full power later that day.
The plant continued at full power through out the rest of the month.
The primary-to-secondary steam generator tube leakage remained at one-half gallon per day.
The secondary condensate oxygen remained at 6 and 4 ppb for each train of water respectively.
The reactor coolant system iodine dose equivalent concentration remained at approxi-mately 10% of the specification limit.
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Trojan Nuclear Plant-Summary.of Operating Experience Page 2 MAJOR SAFETY RELATED MAINTENANCE:
Repaired steam-driven auxiliary feedwater pump mechanical overspeed trip device.
The mechanical overspeed trip unit had been previously deactivated due to broken internal parts but the electrical overspeed unit was operable.
The mechanical unit was repaired and tested satisfactorily.
Completed control room emergency ventilation carbon filter replacement and testing.
Incore/Excore Nuclear Instrumentation (NIS) calibration was performed
-and the new calibration data was inserted into the protection and control circuits.
Completed sensor time response testing on several reactor protection parameters.
Completed adjustments of theA' train emergency diesel generator speed and voltage regulation circuits.
MISCELLANEOUS MAINTENANCE:
-Inspected
'B' reactor coolant pump (RCP) bearing and repaired
'B' RTD terminal connection.
Repaired a body-to-bonnet leak on letdown line isolation valve (LCV-459).
Continued work on the fire protection upgrade program.
LICENSE CHANGES:
None MISCELLANEOUS:
None
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Portland General Electric Company
- Trojan Nuclear Plant P.O. Box ~439 Rainier, Oregon 97048
-(503)556-3713 October 3, 1986 WSO-345-86
' Trojan Nuclear Plant Docket 50-344 License NPF-1 Office of Resource Management US Nuclear Regulatory Commission Washington, DC 20555 Gentlemen:
1 Monthly Operating Data Report In accordance with the Trojan Nuclear Plant Technical Specifications reporting requirements, the monthly operating data report-is submitted for September, 1986.
Sincerely, cm a
W.
S.
Orser i
General Manager Attachment c:
Mr. John B. Martin Regional Administrator, Region V U.S.
Nuclear Regulatory Commission Mr. Lynn Frank, Director State of Oregon Department of Energy
$GO
_