ML20050F850

Monthly Operating Rept for June 1981

ML20050F850
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	07/02/1981
From:	Goodman L DAIRYLAND POWER COOPERATIVE
To:
Shared Package
ML20050F844	List: ML20050F843 ML20050F850
References
NUDOCS 8204130395
Download: ML20050F850 (11)

Text

'.

OPERATING DATA REPORT DOCKETSO, 50-409 DATE.07-02-81.

~

COMPLETED BY _lzS.G0ODMAN TELEPil0NE 608-689-2331 OPERATING ST ATUS N*

1. Unit Name: LA CROSSF B0ftING MATFR RFACTop

2. Reporting Period: __0001. 06-01-81 TO 2400. 06-30-81 165

3. Licensed Thermal Power (Mhti:

65,3

4. Nameplate Rating (Gross MWe):

50

5. Design Electrical Rating (Net MWe):

50

.c

6. Masimum Dependable Capacity (Gross MWel:

48

7. Masimum Dependable Capacity (Net MWe):

S. If Changes Occur in Capacity Ratings (liems Number 3 Through 7) Since Last Report.Gise Reasons:

4

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

10. Reasons For Restrictions. lf Any:

This Month Yr. to Date Cumulative 720 4,343 102.242

!!. Ilours in Reporting Period 252.8 2,985.1 67,082.1

12. Number of flours Reactor Was Critical 0

0 478

13. Reactor Resene Shutdown flour, 162.3 2.714.3 61.745.6

14. Hours Generator On-Line

15. Unit Rewne Shutdown Ilours 0

0 79 16R_Rn? 7 8.453.140.1 1)1884_?9 9 __ _ _. _..

105;793 2.536.428

16. Gross Thermal Energy Generated (MWHI 3

17. Gross Electrical Energy Generated IMWill 2,706 97,744 2.345.024

18. Net Electrical Energy Generated (MWill 22.6 62.5 60.4

19. Unit Senice Factor 22.6 62.5 60.5

20. Unit Asailability Factor 78 46.9 47.8

21. Unit Capacity Factor (Using MDC Nett 7.5 45.0 45.9

22. Unit Capacity Factor (Using DER Nett 55.7 10.3 7.3

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Oser Ne.st 6 Months (Ty pe. Date.and Duration of Each t:

None NA

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

2ti. Units in Test Status (Prior to Commercial Operationi:

Forecast Achiesed INII1 \\ L CRillC \\ LII Y INiil \\L ELI CIRlCIIY COM\\ll RCI\\1 Ol'1 R \\IlON

[

i 8204130395 810707

~ >

r-PDR ADOCK 05000409 R

PDR a

t

1 of 2 -

UNITSHU1 DOWNS AND POWER REDUCTIONS DOCKET NO. 50-409 UNIT N AME LACBWR D 4TE 17-02-81 REPORT MONTH JUNE 198I COMPLETED BY L.5.600DMAN TELEPHONE 608-689-2331 6

3?

3 )E' Licensec

,E-t, Cause & Correstne No.

Date 33 4

3sE Event g?

53 Attam to y.

j ;g -

Repori=

mV yU Present Recurrence b

81-08 05-23-81 S

353.2 B

1 NA ZZ ZZZZZZ SCHEDULED OUTAGE FOR FUEL RECEIPT AND MAINTENANCE CONTINUED, ACTIV-ITIES INCLUDED FUEL RECEIPT, INSTALL-

~

ATION OF PIPE HANGERS, TMI AND OTHER REQUIRED MODIFICATIONS, MAIN CONDEN-SER CLEANING, TESTING OF EMERGENCY s

SERVICE WATER SUPPLY SYSTEM AND WORK ON_IA FORCED CIRCULATION PUMP SEALS.

81-09 06-15-81 F

19.1 A-3 NA IA INSTRU SPURIOUS SPIKE ON NUCLEAR INSTRU-MENTATION (NI) CAUSED CORRESPONDING MOMENTARILY HIGH READING ON POWER /

FLOW CHANNEL WHICH RESULTED IN AUTO-3 MATIC SHUTDOWN. NI CHANNEL 8 POWER t

. SUPPLY WAS. REPLACED,

-(Cont'd),,,,,,,,,,

1 2

3 4

F: Forced Reason:

Method:

Exhibit G - Instructions S: Scheduled A-Equipment Failure (Explain) 1 Manual for Preparation of Data i

13-Maintenance of Test 2 Manual Scram.

Entey Sheets for Licensee 1

C-Refueling

3. Automatic Scram.

Event Report 41.1 RI File int'RI G.

D Regulatory Restriction 4 Other (Explaini 0161)

E-Operator Training & Liceme Examination F-Admmistratn e 5

i G-Operational Er ror (Explain)

Eshibit I - Same Source p)/77) 11-01her ( Explain) i e

2 of 2 50-409 UNif SIIUll> OWNS ANI) POWLR REDCCTIONs DOMET NO.

UNIT N etE LTCBWR IMIE 07-07 Al COMPl.E IED BY L.5. GOODMAN RLPORI MONTil JUNE 198I TELEPIIONE 608-689-2331

~k

-k

!?

Lesenses E-Cauw & Correstise 5'5

$~$

Attom to

\\" -

DJte h

~?

4 25E I.sen

$2 E

j5-RePo's r A0

}'

Psesen Recurrente 6,

81-10 06-19-81 F

185.4 A

3 NA EB CKTBRK AUTOMATIC SHUTDOWN OCCURRED DUE TO LOW VOLTAGE AT REACTOR BUILDING MOTOR CONTROL CENTER 1A (RBMCCIA),

DUE TO A HIGH AMPERAGE SHORT CAUSED WHEN THE DECAY HEAT PUMP CONTROL POWER TRANSFORMER HAD FAILED.

STARTER WAS REMOVED AND BUS RE-ENERGIZED.

BREAKER WAS REPAIRED AND ALL OTHER BREAKERS IN RBMCCIA WERE VISUALLY EXAMINED.

SEAL REPAIR WORK WAS ALSO PERFORMED ON CONTROL R0D DRIVE MECHANISM NO. 20 DURING THIS OUTAGE.

I 2

3 4

l' l'otced Reason:

Method:

Inhibit G Instru tnins s

% Ss hedulcil A l'.quipment l'ailure (i.splain) 1 Manual for Picparatt..n ut Data II.Maintenante of Test

'. Manual Se.un.

I ntn Shuts t. e i.nemec C. Refueling 3-Antoinatic Neam.

I sent Report il I Hil'de int Ri t.

D Regulatory Rest:iction 4-Oiher iI aplam )

0161)

1. Operator Training A 1.kenw I usnmation F-Admtmst ratise G Operational I.o ror Ilipl.nn)

I sinbis 1 Same Souise 08/77)

II Oiher Iliplain) a

1. 2

AVERAGE DAILY UNIT POWER LEVEL 50-409 DOCKET NO.

LACBWR 3.g 7 07-02-81 DATE L.S. GOODMAN CONIPLETED BY TELEPilONE slONin JUNE 1981 DAY AVER AGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL e3 O!We Net)

(Mwe. Net)

SHUTDOWN 16 37 21 2

is 8

.t g9 4

20 0

0 5

21 0

6 22 7

23 0

8 24 0

9 25 0

10 26 0

11 27 1p 12 28 20 13 29 24 I4 30 27 15 2

3, 2

16 INSlRUCllONS On this format. list the nerage daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.

(9/77 )

i

I NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE JUNE 1981 At the onset of the June 1981 reporting period, the plant was shut down for a scheduled fuel receipt and maintenance outage.

Outage activities performed during June included receipt of irradiated fuel from the General Electric storage facility in Morris, Illinois, installation of pipe hangers and seismic restraints, TMI and other modifications, main condenser cleaning, testing of the Emergency Service Water Supply System, and work on the lA Forced Circulation Pump seal.

.f The reactor'was taken critical at 0525 on June 14, but a spurious spike on Nuclear Instrumentation (NI) Channel No. 8 caused a scram at 0956.

The peactor was returned to critical at 1142 that day.

The turbine-generator was synchronized to the DPC grid at 1712 on June 15, but at 2344 a spurious spike on NI Channel No. 8 caused a high signal on the corresponding Power / Flow Channel No. 2, which resulted in an automatic shut-down.

The reactor was returned to critical at 0634 on June'16.

The turbine-generator was connected to the DPC grid at 1850 on June 16 and a slow power escalation commenced.

At 0844 on June 19, with the reactor at 60% Rated Thermal Power (27 MWe-Net), a scram occurred due to low voltage at Reactor Building Motor Control Center lA.

The Control Power Trans-former for the Decay Heat Pump Starter had shorted.

The resulting ionization flashed over, causing a high amperage short.

The Decay Heat Pump was not in service at the time.

The reactor was returned to critical at 1239 that day.

At 0202, on June 20, the reactor was manually shut down due to leakage from the mechanical seal of Upper Control Rod Drive Mechanism in position No. 20.

The UCRDM was reworked and the reactor was taken critical at 1610 on June 25.

At 0900 on June 26, the reactor was manually shut down in order to replace Lower Control Rod Drive Mechanism in position No. 20, due to a hydraulic seal leak.

A spare mechanism was installed.

At 1205 on June 26, the reactor was returned to critical.

The turbine-generator was synchronized to the DPC grid at 0206 on June 27 and a slow escal-l ation commenced.

The reactor had achieved 67% Rated Thermal Power l

(30 MWe-Net) at 2400 on June 30, which marked the end of the report-ing period.

Significant maintenance items performed during June 1981 are indi-cated1x1 the attached Mechanical Maintenance and Instrument and Electrical Maintenance listings.

JUNE 1981 1 of 3 INSTRUMENT AND ELECTRICAL MAINTENANCE COUTAGE ITEMS LER OR l

NATURE CF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION CSECURITY SYSTEM CORRECTIVE OUTAGE UNKNOWN FALSE ALARM CLEANED AND ADJUSTED E-FIELD MR 0653 81-08 POTENTICMETERS MR 0654 0 SECURITY SYSTEM CORRECTIVE OUTAGE UNKNOWN ALARM REBALANCED AND ADJUST-ZONE 48-8 MR 0.658 81-08 ED ALARM BOARD CSECURITY SYSTEM CORRECTIVE OUTAGE UNKNOWN LENS LOCKED UP REPLACED CAMERA WITH CAMERA 1 MR 0681 81-08 SPARE

• SECURITY SYSTEM CORRECTIVE OUTAGE POWER LOSS POOR PICTURE REPLACED CAMERA WITH CAMERA 5 MR 0673 81-08 SPARE SECURITY SYSTEM CORRECTIVE NA UNKNOWN ALARM ADJUSTED ALARM BOARD ZONE 17.

MR 0691 SECURITY SYSTEM CORRECTIVE NA UNKNOWN ALL MICROWAVES RESET ALL MICROWAVES MICROWAVES MR 0694 LOCKED UP SO MUX WOULD OPERATE SECURITY SYSTEM CORRECTIVE NA NORMAL USAGE POOR OPERATION CLEANED FILTERS ON EXPLOSIVE DETECTOR MR'0692 UNIT 2 SECURITY SYSTEM CORRECTIVE OUTAGE USAGE POOR PICTURE ADJUSTED VIDICON AND CAMERA 1 MR 0717 81-10 LENS

• GENERATOR PLANT CORRECTIVE OUTAGE CORROSION CRACKED CELL REPLACED CELL NO. 46 BATTERY BANK MR 0656 81-08 AND SEAL NUTS AND SEAL NUT ON FOUR MR 0666 OTHER CELLS

• CRD POSITION 10 CORRECTIVE OUTAGE OIL LEAKAGE SHORT IN CLEANED OIL FROM MR 0660 81-08 CONNECTOR CONNFCTOR-

• TUBB VACUUM SWITCH

. CORRECTIVE OUTAGE NORMAL USAGE POOR OPERATION CLEANED CONTACTS MR 0661 81-08

• HALON FIRE SYSTEM FC 06-80-3 OUTAGE NEW SYSTEM COMPLETED COMPLETED TESTS AND ELECTRICAL EQUIPMENT 81-08 INSTALLATION INSTALLATION ROOM

)

JUNE 1981 2 of 3 IftSTRUMEriT AflD ELECTRICAL MAINTEtiAtiCE LER OR f1ATURE OF OUTAGE MALFUtiCTI0ft EQUIPMEtiT MAltiTENAfiCE fiUMBER CAUSE RESULT CORRECTIVE ACTION ClB INVERTER CORRECTIVE OUTAGE NORMAL USAGE LAMP BURNED OUT REPLACED PILOT LAMF MR 0667 l81-08

• GENERATOR ECCENTRIC-CORRECTIVE OUTAGE NOPRAL USAGE TUBE WEAK REPLACED ELECTRON ITY RECORDER MR 0669 81-08 TUBE

• JUNCTION BOX TERMIN-CORRECTIVE OUTAGE NRC REQUIRE-REPLACED TERMINd REPLACED TERMINAL AL BLOCKS (2)

MR 0670 81-08 MENT AL BLOCK BLOCK MR 0674

• BENCHBOARD FIRE DOOR CORRECTIVE OUTAGE SHORT IN DEFECTIVE REPAIRED SWITCH INTERLOCK SWITCH.

MR 0678 81-08 SMITCH SWITCH

• GENERATOR VACUUM CORRECTIVE OUTAGE MERCURY CON-DIRTY TUBE REPLACED TUDE WITH GAUGE MR 0539 81-08 TAMINATION SPARE

• lB SEAL INJECTION CORRECTIVE OUTAGE MOVEMENT OF EARLY TRIP RESET STATIC TRIP PU'MP BREAKER MR 0683 81-08 SETTINGS DEVICE

• STACK GAS MONITOR CORRECTIVE iOUTAGE NORMAL USAGE CLUTCH SLIPPING RESET CLUTCH TENSION MR 0672 81-08

• MSIV BYPASS VALVE CORRECTIVE OUTAGE FEEDBACK ARM VALVE INOPER-REPLACED FEEDBACK AFM

~MR 0684 81-08 KNOCKED OFF ATIVE

• OFFGAS BOOSTER FAN CORRECTIVE OUTAGE NOPRAL USAGE DEFECTIVE REPLACED BEARINGS MR 0679 81-08

. BEARINGS

• CHANNEL N-8 POWER CORRECTIVE OUTAGE POWER / FLOW DEFECTIVE REPLACED DEFECTIVE SUPPLY AND POWER MR 0688 81-09 SPIKES COMPONENTS COMPONENTS CHASSIS MR 0691 REHEATER LEVEL CORRECTIVE NA NORMAL USAGE HI LEVEL ALARM RESET LEVEL CONTROL MR 0695-

[

JUNE 1981 3 of 3 ItiSTRUMENT Arid ELECTRICAL MAINTENANCE LER OR NATURE OF OUTAGE MALFUNCTIO!!

EQUIPMEtiT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION CCONTROL ROD DRIVE, CORRECTIVE OUTAGE MECHANICAL LEAKAGE REMOVED, REPLACED AND f

POSITION NO. 20 MR 0706 81-10 SEAL WEAR OVERHAULED CRDM NO. 20 MR 0715 CONTROL ROD DRIVE, CORRECTIVE OUTAGE MAINTENANCE LOOSE REINSTALLED PLUG POSITION NO. 13 MR 711 81-10 WORK DONE ON CONNECTOR CRD NO. 20

• CONTROL ROD OIL / GAS CORRECTIVE OUTAGE POOR LAMP NO GAS LOW REPLACED LAMP UNIT INDICATION #20 MR 0635 81-10 CONTACT LIGHT 1A WASHING MACHINE CORRECTIVE NA MOTOR BURNOUT NO OPERATION REPLACED DEFECTIVE MR 0716 MOTOR' NUCLEAR CHANNELS PREVENTIVE NA TEST DUE COMPLETED TESTS COMPLETED TESTS FOR 4

N-5 THROUGH N-8 CHANNFLS N-5 THROUGH N-8 SAFETY SYSTEM PREVENTIVE NA TEST DUE COMPLETED TESTS COMPLETED CH 1, 2 AND CHANNELS 1 AND 2 H O LEVEL 3 TESTS 2

e m

Ju E 1981 1 of 3 MECHANICAL MAINTENANCE LER OR ALFUtiCTION P

flATURE OF OUTAGE EQUIPfiENT FGINTEtlAfiCE NUf4BER CAUSE RESULT CORRECTIVE ACTION SEISMIC RESTRAINTS NEW INSTALL-OUTAGE NA NA FABRICATED AND IN-ATION 81-08 STALLED SEISMIC MR 0611 RESTRAINTS MR 0636 W1814 1A EMERGENCY DIESEL PREVENTIVE OUTAGE AGE BEGAN SHOWING REPLACED UPPER RADIATOR GENERATOR RADIATOR MR 0655 81-08 WEAR HCSE AND ADDED ANTI-HOSE FREEZE TO RADIATOR WASTE WATER FLOW NEW INSTALL-OUTAGE NA NA INSTALLED NEW WASTE METER ATION 81-08 WATER FLOW METER MR 0451 lA FORCED CIRCULATION CORRECTIVE OUTAGE SEAL WEAR EXCESSIVE LEAK-REPLACED SEALS AND PUMP.

MR.0631 81-08 OFF FLOW FLOATING SLEEVE EMERGENCY SERVICE CORRECTIVE OUTAGE TOO GREAT A INADEQUATE FABRICATED NEW WATER SUPPLY SYSTEM FC 83-80-1 81-08 PRESSURE DROP FLOW DISTRIBUTOR (ESWSS)

ADDENDUM 5 ACROSS SUPPLIEE 3-WAY DISTRIB-UTOR ESWSS PUMP NO. 2 CORRECTIVE OUTAGE GASKET LEAKING VALVE CLEANED AND REPLACED MR 0671 81-08 SLIPPED COVER GASKET GASKET USING PERMATEX ALTERNATE CORE SPRAY NEW INSTALL-OUTAGE NA NA INSTALLED MODIFICATION CHECK VALVES ATION 81-08 TO PERMIT TESTING AS FC 38-81-2 PER NRC REQUIREMENT MR 0614 LOWER CONTROL ROD CORRECTIVE OUTAGE HARD PACKING LEAKED PYDRAUL REPLACED PACKING, DRIVE MECHANISMS MR 0515 81"08 MATERIAL RENEWED OIL CHECK VALVE

' FRAMES 12 AND 16 MR 0605 O-RING AND CONICAL SEAL HIGH PRESSURE SERVICE CORRECTIVE OUTAGE WEAR DIFFICULT TO REPLACED STRAINER WATER SUPPLY STRAINERS MR 0567 81-08 SHIFT STRAINERS YOKES AND COVERS WATER LEVEL NO. 2 CORRECTIVE OUTAGE NORMAL WEAR MINOR STEAM REPLACED BONNECT AND CONDENSATE POT FIRST MR 0663 81-08 LEAK REPACKED OFF VALVE

.T

JUNE 1981

+

2 of 3 MECHANICAL MAINTENANCE LER OR NATURE OF OUTAGE LtALFUtiCTION EOUIPMErlT MAINTENAfiCE f3 BER CAUSE RESULT CORRECTIVE ACTION POST ACCIDENT SAMP-NEW INSTALL-OUTAGE NA NA INSTALLND CONTAINMENT LING SYSTEM ATION 81-08 ATMOSPHERE SAMPLING MR 0682 SYSTFM 1A REACTOR FEED PUMP CORRECTIVE OUTAGE NORMAL WEAR LEAKED BY SEAT MACHINED INNER VALVE, RECIRC. VALVE.

MR 0453 81-08 INSTALLED NEW CAGE, PACKING AND GASKETS LOWER CONTROL ROD CORRECTIVE OUTAGE PYDRAUL IN PRIMARY POSITION REPLACED WITH SPARE:

DRIVE MECHANISM MR 0690 81-09 TRANSMITTER INDICATION REPLACED TRANSMISSION FRAME 18 MR 0700 INDICATED 1800 SEAL AND PRIMARY OUT OF PHASE POSITION TRANSMITTER 1B SEAL INJECTION CORRECTIVE NA WORN FITTING VIBRATED AWAY INSTALLED NEW FITTING

. PUMP PLUNGER WATER MR 0570 FROM PLUNGER ON WATER TO PLUNGER SUPPLY LINE DURING OPERATION TUBING 1A SEAL INJECTION CORRECTIVE OUTAGE WEAR LEAKED REPLACED THREE PLUNGERS PUMP MR 0707 81-10 AND REPACKED.

INSTALLED NEW PARTS IN DISCHARGF s-CHECK VALVE.

LOWER CONTROL ROD PREVENTIVE OUTAGE NA NA PERFORMED PREVENTIVE

. DRIVE MECHANISM MR 0706 81-10 MAINTENANCE

' FRAME 13, POSITION 20 UPPER CONTROL ROD CORRECTIVE OUTAGE FAILURE OF LEAKED WATER REWORKED UPPER CONTROL DRIVE MECHANISM MR 0706 81-10 MECHANICAL SEAL ROD DRIVE MECHANISM POSITION 20 l

EMERGENCY AIRLOCK CORRECTIVE OUTAGE I*AM ROLLER FELL INNER DOOR WAS REPLACED INNER DOOR IN-L.

MR 0709 Rl-10 OUT OF INNER DIFFICULT TO TERLOCK CAM ROLLER AND DOOR AIRLOCK CLOSE TIGHTENED SET SCREW SECURITY SYSTEM PREVENTIVE OUTAGE NA NA INSTALLED WATER JACKET DIESEL MR 0704 81-10 HEATER ON ENGINE TO IMPROVE ENGINE PERFORM-ANCE AND RELIABILITY s

JUNE 1981 3 of 3 F1ECHANICAL MAINTENANCP.

LER OR flATURE OF OUTAGE MA._LfullCTI0f4 EQUIPMEfiT MAlf4TEilAfiCE fiUMBER CAUSE RESULT CORRECTIVE ACTION 1B WASTE WATER PUMP CORRECTIVE OUTAGE MECHANICAL LEAKED REPLACED MECHANICAL MR 0530 81-10 SEAL FAILURE' SEAL' LOWER CONTROL ROD CORRECTIVE OUTAGE HARD PACKING LEAKED REPLACED WITH SPARE, DRIVE MECHANISM MR 0720 81-10 MATERIAL REPACKED PISTON STEM FRAME 13 PACKING POSITION 20 W

s.

O

+

t 4

\\

e s

g s

a t**

a t

4&

M-t x

4

.