ML19323C381

Monthly Operating Rept for Apr 1980

ML19323C381
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	05/05/1980
From:	Goodman L DAIRYLAND POWER COOPERATIVE
To:
Shared Package
ML19323C380	List: ML19323C379 ML19323C381
References
NUDOCS 8005150443
Download: ML19323C381 (12)

Text

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8095150 N O

OPERATING D ATA REPORT DOCKET NO.

50-409 DATE 3-3-80 COMPLETED BY L.S. Goodman TELEPHONE 608-689-2331 OPERATING STATUS

1. Unit Name: LA CROSSE BOILING WATER REACTOR N88'5

2. Reporting Period: 0000, 80-01-04 to 2400,80-30-04

3. Licensed Thermal Power (MWt):

165

4. Nameplate Rating (Gre.MWep:

65.3

5. Design Electrical Rat vg # 4et MWe):

50 l

50

6. Maximum Dependable Capacity (Gross MWe):

48

7. Maximum Dependable Capacity (Net MWe):

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

9. Power Level To which Restricted. If Any INet MWe):

10. Reasons For Restrictions. If Any-This Month Yr..to.Date Cumulatise 1

11. Hours In Reporting Period 71 4 2:409 42_ n1 R

12. Number Of Hours Reactor Was Critical 212.3 2.338.4 60.143.9

13. Reactor Omve Shutdown Hours 0

0 478

14. Hournenerator On.Line 137.4 2.246.9 55.251.7

15. Unit Reserve Shutdown Hours 0

0 79

16. Gross Thermal Energy Generated (MWH) 18,004 308,884 7,593,664

17. Gross Electrical Energy Generated (MWH) 5,17 L, _

91,020 2.290.152

18. Net Electrical Energy Generated lMWH) 4.447 85.291 2.11 R. 02 6

19. Unit Service Factor 19.1 77.4 60.0

20. Unit Availability Factor 19.1 77.4 60,1

21. Unit Capacity Factor IUsing MDC Net) 12.9 61.2 4R_O

22. Unit Capacity Factor lUsing DER Net) 12.4 58.8 46.0

23. Unit Forced Outage Rate 0

3.2 6.3

24. Shutdowns Scheduled Over Nest 6 Months iType. Date.and Duration of Eacht:

ESTTMATED REFUELING OUTAGE. AUGUST 18. 1980. 6 WEEKS

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

NA

26. Units in Test Status (Prior to Commercial Operation 1:

Forecast Achiesed INITIA L CRITICALITY INITIAL ELECTRICITY l

COMMERCIAL OPER ATION p.- i I

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-409 UNIT LACBWR __

DATE 05-05-80 COMPLETED BY L.S. GOODMAN TELEPHONE 608-689-2331 MONTH APRIL 1980 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL tMWe Net)

(MWe-Net) 1 39 7

0 2

39 g

0 3

39 gg 0

4 39 20 0

5 38 21 0

6 5

0 7

0 23 0

8 0

0 24 9

0 25 0

10 0

s 0

11 0

0 27 12 0

0 g

13 0

29 0

14 0

30 4

IS 0

3g 16 0

INSTRUCTIONS On this format. list the average daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt i

I (9/77)

DOCKETNO.

50 8309 UNIT SilUTDOWNS AND POWER REDUCTIONS UNIT NAME I.ACllWR DATE 5-5-80 REPORT MONTil APRII* 1980 COMPLETED BY I,.S.

GOGITIAN TELEPIIONE 608-689-2331 e.

33 3

!ik Licensee

,E-r, Cause & Corrective o

No.

Date h

3g i

2s5 Event p

93 Attion to

$E j@g Report u mV y'

Preveni Recurrence 6-b 80-03 Oti-06-80 S

581.6 II 1

NA ZZ ZZZZZ LACBWR was shut down for equip-ment installation required by NUREG-0578, including position indicators on relief valves and manual resets on containment isolations.

/

i 1

2 1

4 1: Iniecd Reason:

Method:

Exhibit G Instructions S. Scheduled A-E.guipment Failure (Explain) 1 Manual for Picparation of Data H. Maintenance of Test 2 Manual Scram.

1.ntiy Sheets l'or 1.reensee C Refueling 4-Other I Explain) 0161)

.4 Automatic Stram.

Event Report 11.1 Rl Fde tNURI G.

D-Regt c tor > Restriction a

E-Oper.ar Training & 1.icense I xamination F-Adminnt ratise 5

G Operational 1:rror IE xplain)

I stubit I - Same Source c/77)

Il-Other (E mplain t i

i

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE APRIL 1980 At the onset of the April reporting period, power generation was continuing at 85% Reactor Rated Thermal Power (39 MWe-5et).

This operating power level has been scheduled to extend core life to stretch optimum production until refueling becomes necessary.

On April 6, 1980, the reactor was shutdown for equipment install-ation required by HUREG-0578.

The equipment installation required by NUREG-0578 consisted of position indicators for the safety relief valves and the addition of diverse parameter closure signals and manual resets on several containment isolation valves.

Other major tasks completed during the outage included installation of a double check valve in the Fuel Element Storage Well drain line, repair of the lA Forced Circulation Pump's seal and repair of one of the generator's H2 seals.

Class B and C Leakage Rate Testing was also performed.

The reactor was taken critical at 0012 on April 26, 1980.

Over the next two days, training criticals were performed by the oper-ators, the last one being conducted at 0307 on April 28th.

At 1921 on April 28th, during heatup, with the reactor at 0.5%

power, a low water level scram occurred.

When the 1A Reactor Feed-water Pump had been placed in AUTO at 1850, there had been too little demand on it and it backed down, so when the Main Steam By-pass Valve was opened to begin drawing steam to the turbine side, there was a reduction of water supply to compensate for the inventory being drawn off as steam.

Therefore, water level began to slowly decrease and before feedwater input could be increased sufficiently with the feed pump on manual control, the reactor scrammed on low water level.

The scram limits for water level are established within a narrow band of -12" to +19".

The water level was increased to normal with the RFP and the HPCS pumps.

The reactor was returned to critical at 2033.

e 4

At 2159, a partial reactor scram occurred at 25x10

% power due to a scram solenoid coil burning cut on CRD No. 29.

The scram solenoid and its power circuit fuse, which had also burnout out, were replaced and the reactor was returned to critical at 1223 on April 29th.

At 1337 on April 29th, the reactor scrammed when fuse 55-2, which is on the control power circuit, burned out due to a short circuit condition at Control Rod Drive Mechanism No. 1.

The fuse was re-placed and the reactor returned to critical at 1503.

1 of 2

~

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE - (Cont'd)

Power was escalated slowly in accordance with the rod control program.

The turbine generator was synchronized to the DPC grid at 1315 on April 30th.

Power escalation continued slowly, with 32% Reactor Rated Thermal Power (12 MWe-net) being achieved by the end of the day, which also marked the end of the reporting period.

Significant maintenance items performed during the April 1980 re-porting period are indicated on the attached Instrument and Electrical Maintenance and Mechanical Maintenance listings.

4 i

i 2 of 2

sheet 1 of 81 INSTRUMENT AND ELECTRICAL MAINTENAhCE APRTL 1980 LER OR flATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION NUCLEAR INSTRIFIENTATION PREVENTIVE NA TEST DUE COMPLETED TESTS CG1PLETED TECil. SPEC.

TESTS N-5 TifRU N-9 NUCLEAR INSTRUMENTATION PRI:VEhTIVE OUTAGE TEST DUE CG1PLETED TESTS CG1PLETED TUBE TESTING MR 3080 80-03 N-1 TIIRU N-G

! SAFETY SYSTEM PREVENTIVE OUTAGE TEST DUE CGIPLETED TESTS CG1PLETED SAFETY SYSTEM 80-03 Cl! 1, 2, II 0 #3 2

D. C. POWER SYSTEMS PREVENTIVE OUTAGE TEST DUE COMPLETED TESTS CG1PLETED QUARTERLY 80-03 BATTERY TEST.'

FIRE DETECTION PREVENTIVE OUTAGE TEST DUE COMPLETED TESTS CG1PLETED QUARTERLY 80-03 FIRE DETECTOR TESTS AC POWER 1C INVERTER FACILITY CIIANGE OUTAGE NEW EQUIR1ENT CGlPLETED ADDED ALARM FOR 1C 78-80-1 80-03 REQUEST INSTALIATION INVERTER DIESEL GENERATOR 1A FACILITY CIIANGE OUTAGE NEW EQUIINENT CG1PLETED ADDED FUEL PUMP FUEL PG1P 78-80-2 80-03 REQUEST INSTALLATION SlI11T-OFF SWITCil ECC PUMP RUN METERS FACILITY CIIANGE OUTAGE NEW EQUIPMENT COMPLETED ADDED ELAPSE TIME METERS 1A, 1D 79-211 80-03 REQtlEST INSTALIATION SAFETY RELIEF VALVES FACILITY CllANGE OUTAGE NEW EQUIPMENT CalPLETED ADDED INDICATION LIGilTS 1, 2 & 3 6ti-80-1 80-03 REQUEST INSTALLATION FOR VALVE CONDITION FIRE AIAPJI SYSTEM FOR FACILITY CifANGE OUTAGE NEW EQUIPMENT CGlPLETED CIIANGED POWER FRG1 1B 1B DTESEL 79-19 80-03 REQUEST INSTALIATION TO 1A BUS.

CONTAINMENT ISOIATION FACILITY CIIANGE OUTAGE NEW EQUIPMENT CG1PLETED ADDED RESET AND SECOND VALVES 37-80-1 80-03 REQUEST INSTALIATION CLOSE SIGNAL REACTOR VENTIIATION FACILITY CIIANGE OUTAGE NEW EQUIPMENT COMPLETED ADDED RESET AND SECOND DAMPER VALVES 79-25 80-03 REQUEST INSTALIATION CLOSE SIGNAL REACTOR VENTILATION CORRECTIVE NA NORMAL USAGE DEFECTIVE REPLACED MOTOR WITil MR 303tl BEARINGS SPARE

sheet 2 of II INSTRUMENT Af!D ELECTRICAL MAINTENANCE APRIL 1980 LER OR NATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION FURIFICATION RECORDER CORRECTIVE NA CONTAMINATED INCORRECT CLEANED RECORDER SWITCII MR 3033 CONTACTS INDICATION CONTACTS SlIUTDOWN CONDENSER CORRECTIVE OUTAGE DEFECTIVE INOPERATIVE REPIACED WITl! SPARE UNIT INLET VALVE MR 29tl7 80-03 DETECTOR INDICATION GENERATOR LUBE OIL PREVENTIVE OUTAGE TEST '!EQUEST CGil)LETED TESTS TESTED AIARM CONTACTS SYSTEM MR 2933 80-03 FOR OIL LEVELS RECOMBINER CORRECTIVE OUTAGE DEFECTIVE INOPERATIVE REPIACED IIEATER MR 3032 80-03 IIEATER llEATER CONTROL ROD DRIVE CORRECTIVE OUTAGE UNKNOWN INCORRECT CALIBRATED UNIT UNIT 21 MR 291tl 80-03 INDICATION TURBINE OIL SYSTEM CORRECTIVE OUTAGE NORMAL USAGE DEFECTIVE SWITCH REPIACED PRESSURE SWITCll MR 2900 80-03 I!YDROGEN RECOMBINER PREVENTIVE OUTAGE TEST REQUEST CG1PLETED TEST CLEANED AND CALIBRATED MR 2953 80-03 ANALYZER 1[YDROGEN RECG1BINER PREVENTIVE OUTAGE TFST REQUEST COMPLETED TEST CALIBRATED TEMPERATURE MR 30tl8 80-03 GAUGC OFF GAS FLOW METER PREVENTIVE OUTAGE TEST 'lEQUEST CRIPLETED TEST CLEANED AND CIIECKED MR 2988 80-03 FLOW CELL MR 29011 CONDENSATE PUMP CORRECTIVE OUTAGE NORMAL USAGE ROLL PIN REPIACED ROLL PIN BREAKER MR 3057 80-03 DISENGAGED NUCLEAR CIIANNEL N il CORRECTIVE OUTAGE DEFECTIVE NO IIIGli VOLTAGE REPIACED WITil SPARE UNIT POV!ER SUPPLY MR 3036, MR 3059 80-03 TRANSFORMERS MR 3066 (2 NEW UNITS)

STACK GAS MONITOR CORRECTIVE OUTAGE DEFCCTIVE IIIGli VOLTAGE REPLACED DIODES MR 2853 80-03 DIODES DRIFT

sheet 3 of 11 INSTRUMENT AND ELECTRICAL MAINTENANCE APRIL 1980 LER OR NATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION PURIFICATION STOP VALVE CORRECTIVE OUTAGE UNKNOWN INCORRECT ADJUSTED LIMIT SWITCllES MR 3063 80-03 INDICATION REACTOR PIANT CORRECTIVE OUTAGE NORMAL USAGE INCORRECT ADJUSTED PRINT WilECL TEMPERATURE RECORDER MR 3061 80-03 PRINTING SECURITY SYSTEM NEW EQUIPMENT OUTAGE NEW EQUIINENT COMPLETED INSTALLED SWITCII IN MR 30781 80-03 INSTALIATION COMMUNICATIONS ROOM ELECTRICAL POWER CORRECTIVE R.O.

CRACKED GIANDS LEAKING REPLACED PENETRATION DISTRIBUTION MR 3089, MR 3050 80-01 PENETRATIONS UNITS DEMINERALIZED WATER CORRECTIVE OUTAGE NORMAL USAGE DEFECTIVE REPIACED SWITCII STORAGE TANK MR 30t19 80-03 CONTROL SWITCll FUCL OIL LEVEL GAUGE CORRECTIVE OUTAGE N0lGIAL USAGE DEFECTIVE PMIP REPLACED AIR Palp PUMP MR 30111 80-03 CONTROL ROD DRIVE CORRECTIVE OUTAGE NORMAL USAGE DEFECTIVE SCRAM REPLACED SOLENGID COIL SOLENOID #9 MR 3083 80-03 SOLEN 0ID ALTERNATE CORE SPRAY CORRECTIVE OUTAGE DFFECTIVE PIN KEY OPERATOR REPIACED PIN IN LOCK KEY SWITCII MR 30816 80-03 DEFECTIVE MECIIANISM NUCLEAR INSTRUMENT CORRECTIVE OUTAGE CONTAMINATED INCORRECT CLEANED AND ADJUSTED RECORDER CII. N ti MR 3092 80-03 POT.

INDICATION POT.

NUCLEAR POWER SUPPLY CORRECTIVE OUTAGE DEFECTIVE NO IIIGil VOLTAGE REPIACED DEFECTIVE CII. N il ME 3091 80-03 TRANSFORMER TRANSFORMER F.C.P. lA SEAL ConRECTIVE OUTAGE LOOSE WIRE INCORRECT TIGilTENED TIIERMOCOUPLE TEMPEPATURE MR 30916 80-03 READING WIRE RADIATION MONITOR CORRECTIVE OUTAGE INCORRECT LOW AIARM RESET TO CORRECT MR 3098 80-03 SETTING INDICATION INDICATION F.C.P. lA CONTROL CORRECTIVE OUTAGE DEFECTIVL SWITCII DEFECTIVE REPLACED STOP PIN PLATE SWITCII MR 3102 80-03 STOP PIN

sheet il of II INSTRUMENT AND ELECTRICAL MAINTENANCE APRIL 1980 LER OR NATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION MAKC-UP DEMINERALIZER CORRECTIVE OUTAGE MISALIGNED INCORRECT STRAIGilTENED CAUSTIC MR 3105 80-03 PROBE INDICATION PROBE POWER DISTRIBUTION CORRECTIVE OUTAGE LOOSE STOP PIN NO CORRECT STOP REPLACED STOP PIN PIATE CONTROL SWITCII i

MR 3107 80-03 RADIATION ENVIRONMENTAL CORRECTIVE OUTAGE FILTER BLOCKED MOTOR TRIP CLEANED FILTER UNIT MONITOR MR 3087 80-03 CONTROL ROD DRIVE CORRECTIVE OUTAGE NORMAL USAGE Slf0RTED SCl:Ah REPIACED SOLENOID

_ SOLEN 0ID #29 MR 3110 80-03 SOLENOID i

sheet a of 2 f1ECilANICAL MAINTENANCE APRIL 1980 LER OR NATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NIJMBER CAUSE RESULT CORRECTIVE ACTION 1-B SEAL WATER PUMP CORRECTIVE NA WORN BEARING PUMP RAN IIOT REPLACED BEARINGS LPSW MR 3031 1-A P.C. P. UPPER SEAL CORRECTIVE OUTAGE WORN SEAL EXCESSIVE REPIACED UPPER SEALS MR 30810 80-03 SEALING WATER AND MECllANICAL SEAL RECOMBINER CATALYST PREVENTIVE OUTAGE N/A N/A CLEANED MR 2951 80-03 RFACTOR GAUGE GIASS CORRECTIVE OUTAGE BLOWN GASKET STEAM LEAK REPIACED GASKETS, MICA MR 2678 80-03 AND GIASS TURBINE GENERATOR CORRECTIVE OUTAGE BROKEN "O" RING llYDROGEN LEAK NEW "0" RING AND IIYDROGEN SEAL MR 2969 80-03 LAPPED FACES 1-B SEAL INJECT PUMP CORRECTIVE OUTAGE GASKETS EXCESSIVE WATER REPLACED GASKETS AND SUCTION llEADER MR 2935 80-03 DISC 1-A CRD EFFLUENT PUMP PREVENTIVE OUTAGE N/A N/A PERFORMED PREVENTIVE MR 3051 80-03 MAINTENANCE AND PUT BACK IN SYSTEM TURBINE gLygATING PREVENTIVE OUTAGE N/A N/A CLEANED VALVES MR 29119 80-03 92-22-002 TURBINE OIL SEAL OIL PREVENTIVE OUTAGE N/A N/A CLEAFED REGUIATOR 92-22-003 MR 29119 80-03 CCW SURGE TANK FACILITY CIIANGE OUTAGE N/A N/A INSTALLED IS0TATION

1. 57-80-1 80-03 VALVES & TEST CONNECfION, CUANGE 1 IIYDRO LPSW OUTLET VALVE CORRECTIVE OUTAGE STUCK NOT BEING ABLE DISASSEMBLED, CLEANED

1. 91-281-055 MR 3078 80-03 TO OPEN AND GREASED FUEL STORAGE WELL FACILITY CIIANGE OUTAGE N/A N/A INSTALLED CIIECK VALVES DRAIN LINE

1. 79-20 80-03 PREVENTING TIIE DRAINING OF STORAGE WELL

sheet 2 of 2 MECilAtlTCAT. MAI?1TEf1At1CE APRIL 1980 LER OR NATURE OF OUTAGE MALFUNCTION I

EQUIPMENT MAINTENANCE NilMBER CAUSE RESULT CORRECTIVE ACTION EXIIAUST VENT DAMPER CORRECTIVE OUTAGE SEAL DAMAGE AIR LEAK REPIACED SEAT RING

1. 73-25-006 MR 3079 80-03 LER 80-02 SIIUTDOWN CONDENSER CORRECTIVE OUTAGE DISC AND SEAT COULD NOT DISASSEMpr,ED VALVE AND VENT VALVE #62-25-013 MR 3075 80-03 STUCK OPERATE IAPPED DISC AND SEAT LER 80-011 CONDENSATE SYSTEM PACILITY CIIANGE OUTAGE N/A N/h IMPROVE CONTAINMENT

1. 78-06 80-03 ISOIATION CONDENSATE RETURN CORRECTIVE OUTAGE SEAL DAMAGE LEAKED REPLACED WITil COMPLETE ISOIATION VALVE MR 3073 80-03 NEW INTERNALS

1. 73-25-021 LER 80-03 PIPE IIANGER BASE PIATE FACILITY CIIANGE OUTAGE N/A N/A INSTALLED NEW BASE PLATES

1. 79-27 80-03 ACCUMUTATOR NITROGEN CORRECTIVE OUTAGE BROKEN STEM &

NITROGEN LEAK INSTALLED NEW STEM AND j 3UPPLY VALVE #52-25-003 MR 3101 80-03 "0" RING "0" RING 4

.