ML20211Q553

Monthly Operating Rept for Nov 1986

ML20211Q553
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	11/30/1986
From:	Orser W, Ulmer F PORTLAND GENERAL ELECTRIC CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
WSO-408-86, NUDOCS 8703030120
Download: ML20211Q553 (6)

Text

.-

.o OPERATING DATA REPORT 50-344 DOCKET NO.

DATE COMPLETED BY F.

J.

Ulmer TELEPHONE 503-556-3713 Ext. 495 OPERATING STATUS Notes Trojan Nuclear Plant

1. Unit Name:

, 2. Reporting Period:

Novemhnr 1986 3411

3. Licensed Thermal Power (MWt):

1216

4. Nameplate Rating (Gross MWe):

1130

5. Design Electrical Rating (Net MWe):

1133

6. Maximum Dependable Capacity (Gross MWe):

1075

7. Maximum Dependable Capacity (Net MWe):

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

n/a n/a

9. Powe,r Level To Which Restricted,1f Any (Net MWe):

n/a

10. Reasons For Restrictions.lf Any:

This Month Yr. to Date Cumulative 720 8016 RQR32

11. Hours in Rerotting Period 684.6 6321 55879

12. Number Of Hours Reactor Was Critical 0

0-3887

13. Reactor Reserve Shutc*own Hours 680.5 6242 55296

14. Hours Generator On Line 0

0 3249

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 2167341 20402529 175357334 71391R 66?4?O4 57aa7s?6

17. Gross Electrical Energy Generated (MWH) 677581 6291995 54383299

18. Net Electrical Energy Generated (MWH) 94.5 77.9 61.6 I

19. Unit Service Factor 94.5 77.9 65.2

20. Unit Availability Factor 87.5 77 4 56.8

21. Unit Capacity Factor (Using MDC Net) 83.3 69 5 53.6

22. Unit Capacity Factor (Using DER Net)

'5.5 3.7 14.5

23. Unit Forced Outage Rate

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

Annual refuelino scheduled for Aoril 1.

1987.

n/a

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

26. Units in Test Status (Prior to Commercial Operation):

Forecast Achieved

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n /n n /n INITIAL CRITICALITY n/a n/a INITIA L ELECTRICITY j

COMMERCIAL OPER ATION

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n /n n/n

/

0703030120 861130 hDR ADOCK 05000344 (0/77)

PDR u.

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

COMPLETED BY:

F.

J.

Ulmer TELEPHONE: 503-556-3713 Ext. 495 MONTH November 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1084 17 747 I

2 1084 18 ala 3

1083 19 in6n 4

1083 20 ins 7 5

1078 21 in64 6

1082 22 in7s 7

1077 23 1069 8

1081 24 107s 9

1083 25 in7a 10 1088 26 1074 i

I 11 1085 27 1084 12 981 28 1087 13 677 29 1088 14 811 30 1096 15

-19.4 31 n/a 16 179 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)

M DOCKET NO. 50-344 UNITSIIUIDOWNS AND POWER REDUCTIDNS UNIT NAME Troian DATE COMPl.ETED BY r.

-1 eil1mm,.

REPORT MONT1I Nnv-19R6 TELEPflONE sol-ss6-7711 Ext. 495 "t.

s e

c:

.] E

}

'9 Licensee ge, g.,

Cause & Corrective y

y}

Prevent Recurrence 6_.

Action to DJie R

~5g 2%&

Event gT H

$E cE jdig Report 8 vs L' c5 86-10 11/12/86 0

A N/A N/A liF HT EXCli Reduced power to 55% for plugging of leaking condenser tubes in Train B of Shell C.

Returned to full power on 11/13/86 (21.7 hrs.

later).

86-11 11/14/86 1

39.5 A

3 LER-86-ll IA INSTRU A spurious high vibration Turbine Trip signal caused a

Turbine Trip-Reactor Trip. The vibration sensor was found to be l

faulty; the vibration trip signal was by-passed but vibration indic:

ation is being recorded. Followins the Reactor Trip, 41 additional condenser tubes had to be plugged prior to startup.

I 2

3 4

F: Forced Reason:

Method:

Exhibit G. Instructions S Schedufed A-Equipment Failure (Explain) l-Manual for Psepsession of Data B Maintenance or Test 2-Manual Scram-Entry Sheets for Licensee C Refueling 3-Automatic Sc:am.

Event Repori ILER) Fue INUREG.

D-Regulatory Restriction 4-Other (Explain) 0161)

E-Operstor Trmining A IJcense Examination F-Administrative 5

G-Operational Errug iExplain)

Exhibit I-Same Source (9/77)

II.Other (Explain)

b

' TROJAN NUCLEAR PLANT DOCKET NO:

50-344.

SUMMARY

OF OPERATING EXPERIENCE DATE:

12/4/86 COMPLETED BY:

F..J.

Ulmer TELEPHONE:

503-556-3713 OPERATIONS:

The plant began the month of November at 100% power level.

Full power operation continued until November 12 at 2000'when load was decreased to 55% to isolate the

'B' train of circulating water.

An indication of condenser tube leakage in the

'C' shell of the

'B' train had earlier occurred.

The

'C' shell tube sheet was inspected and two confirmed tube leaks were found.

Those 2 tubes plus an additional 13 possible tube leakers were plugged.

The plant returned to full power at 1942 November 13.

Full power operation continued until November 14 at 1814 when a spurious high vibration alarm occurred on the turbine-generator No. 1 bearing and tripped the turbine-generator and reactor.

An investigation of the turbine-generator No. 1 bearing vibration alarm revealed a failed sensor probe responsible for the alarm signal.

The failed vibration signal was bypassed from the turbine protection circuit and the plant recovery continued.

During the shutdown transient new indications of condenser tube leakage occurred in the

'C' shell of the

'B' train.

The

'B' train of circulating water was again drained and the

'C' condenser shell re-entered.

Two additional condenser tubes were found leaking and 39 other tubes were plugged as potential leakers from steam dump flow impingement.

The reactor regained criticality at 0536 on November 16 and the generator was sychronized with the grid at 0945.

The power escalation was limited to 40% power for secondary water chemistry considerations.

The plant reached full power at 0021 on November 19.

The primary-to-secondary steam generator tube leakage remained at one-half gallon per day and the secondary condensat oxygen remained at 5 and 6 ppb for each train of water respectively.

The reactor coolant system dose equivalent iodine concentration remained at 10%

of the specification limit.

MAJOR SAFETY-RELATED MAINTENANCE:

1.

Performed semi-annual preventative maintenance on the

'A' and

'B' Train Emergency Diesel Generators.

2.

'A' Train ESF outage occurred for preventative maintenance.

3.

'B' Train ESP outage occurred for preventative maintenance.

4.

Completed overhaul of

'B' Service Water pump.

J

s

o; '

• MISCELLANOUS MAINTENANCE:

1.

Plugged 56 condenser tubes due to actual or potential tube leakage.

2.

Disabled Turbine high vibration trip for #1 bearing at Turbine Supervisory Instrument Cabinet.

LICENSE. CHANGES:

Amendment #121-The amendment adds " fail-to-start" to the automatic diesel generator trips that would not be bypassed for EDG starts from loss of voltage on the emergency bus and/or safety injection actuation signal.

OTHER:

During the period a small undetonated explosive charge was discovered buried in the ground three feet from the east side of the fuel building.

The charge had been planted during construction days 13 years ago and was discovered during excavation work in the area.

Army explosive experts were contacted and the hazard was removed.

Analysis indicated that no threat to the integrity of the fuel building or service water intake structure existed.

The annual radiation emergency response plan drill was conducted on November 19, 1986.

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m,0 Portland General Electric Company Trojan Nuclear Plant P.O. Box 439 Rainier, Oregon 97048 (503) SSG3713 December 5, 1986 WSO-408-86 Trojan Nuclear Plant Docket 50-344 License NPF-1 Office of Resource Management US Nuclear Regulatory Commission Washington, DC 20555 Gentlemen:

Monthly Operating Data Report In accordance with the Trojan Nuclear Plant Technical Specifications reporting requirements, the monthly operating data report is submitted for November, 1986.

Sincerely

/

W.

S.

Orser General Manager Attachment c:

Mr. John B.

Martin Regional Administrator, Region V U.S.

Nuclear Regulatory Commission Mr. David O.

Kish Acting Director Department of Energy State of Oregon e