ML19210C965

Monthly Operating Rept for Oct 1979

ML19210C965
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	11/02/1979
From:	Goodman L DAIRYLAND POWER COOPERATIVE
To:
Shared Package
ML19210C962	List: ML19210C961 ML19210C965
References
NUDOCS 7911200377
Download: ML19210C965 (9)

Text

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OPERATLNG DATA REPORT 50-409 DOCKET NO.

DATE 11-02-79 COMPLETED BY _ L.S 000DMAN TELEPHONE 608-689-2331 OPERATING STATUS N88

1. Unit Name: La Crosse Bollino Water Reactor

2. Reporting Period: 0000 79-01-10 to 79-11-10

3. Licensed Thermal Power (MW ):

165 65.3

4. Nameplate Rating (Gross MWe):

50

5. Design Electrical Rating (Net MWe):

50

6. Lximum Dependable Capacity (Gross MWe):

00

7. Maximum Dependable Capacity (Net MWe):

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

9. Power Level To which Restricted,if Any (Net MWep: 48 MVe Net SELF-lMPOSED RESTRICTION DUE TO NUCLEAR INSTRUMENTA-

10. Reasons For Restrictions.lf Any:

TION NOISE AT HIGHER POWER LEVELS.

This Month Yr..to.Date Cumulatise I1. Hours in Reporting Period 745 7.296 87.651

12. Number Of Hours Reactor Was Critical 590.1 5.194.6 46 171.R

13. Reactor Reserve Shutdown Hours 0

0 478

14. Hours Generator On.Line 559.6 4.879.2 41.447.1

15. Unit Reserve Shutdown Hours 0

0 79

16. Gross Thermal Energy Generated (MWH) 76.668 448.060 7 n44.1nt

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17. Gross Electrical Energy Generated IMWH) 22.988 160.540 2.142 849

18. Net Electrical Energy Generated (MWH) 21.480 147.971 1.979.774 75.1 66.9 58.9

19. Unit Service Facto,

20. Unit Availability Factor 75.1 66.9 59.0 60.1 42.3 47.1

21. Unit Capecity Factor (Using MDC Net) 57.7 40.6 45.2

22. Unit Capacity Factor (Using DER Net) 24.9 14.7 6.5

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months IType. Date,and Duration of Each1:

REFUELING SHUTDOWN: MARCH 1. 1980. 6-8 WEEKS DURATION.

NA

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

26. Units in Test Status IPrior to Commercial Operation s:

Forecast Achiesed INITIAL CRITICALITY INITIA L ELECTRICITY COMMERCIAL OPERATION g

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7011200 9 /

AVER AGE DAILY UNIT POWER LEVEL DOCKET NO.

50-409 LACBWR 3.IT

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DATE L.S. GOODMAN COMPLETED BY 608-689-2331 TELEPHONE MONTH OCTOBER 1979 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe.Neti I

O

,7 go 2

0 40 gg 3

0 19 40 4

0 20 40 0

5 21 40 0

40 6

y; 7

0 40 23 2

8 24 40 9

24 40 25 10 35 26 40 40 11 37 40 40 40 12 73 40 40 13 29 40 40 14 30 40 15 3

40 16 40 INSTRUCIlONS On this format. list the average dady unit power levelin MWe Net for each day in the reporting month.Cornpute to the nearest whole megawatt.

14/77) 25 052 4

50-409 IfNil SilipipOWNS AND PohER HI pl1CuoNS p KET No.

IJNIT NAME LA N R DATE 11-02-79 L.S. GOODMAN -

COMPLETED BY Hl PORI Af 0N fil _0CTOBER 1979 TELEriloNg 608-689-2331

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3 45'5; I stenset f-t, Y". ?

L Cause & Currectise No-Date i

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4 1i5 Event s'

s Action so

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3 5, =1 Repose r SU E'

Psenent Recurrente H

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79-13 79-09-28 F

185.4 A

3 NA RB CRDRVE THE SEPTEMBER OUTAGE DUE TO MECHAH-l CAL SEAL LEAKAGE IN UPPER CONTROL ROD DRIVE MECHANISM #10 WAS COMPLETED.

THE MECHANICAL SEAL WAS REPLACED.

I 2

.I 4

I" Forced Reason :

Method:

Estnbit G - Insivuttiims

,3 S Scheduled A l'quipment I ailure (l.splain I Nanual fos Pseparation on Data 11 Maintenante or Test 2-Manual Scrain.

Eni 3 Sheets fin Lisensee

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C. Refueling

.l. Automatic St rani.

Event Repin (l 1.R)l'ile iNtlRI G.

O D Regulatory Restrican,n 4-Other(larl.nni Ol t>I l C,'

I Operains Ts.iining A licenw I sananation V'I F-Adnunnisaine 5

G-Operational i isos il splain t Esinbit I - Same Source t'8/77) ll Ot her llaplain t

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3 UNIT SHUTDOWNS AND PO%ER REDUCTIONS INSTRUCTIONS This report should describe all plant shutdowns dunng the m ascordance with the table appe:.mg on the report form.

report period. In addition. it should be the source of explan-If category 4 must be used, supply brief comments.

ation of significant dips in average power levels. Each signi-ficant reduction m power level (greater than 20% reduction LICENSEE EVENT REPORT e.

Reference the appbcable in average daily power level for the preceding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) rep rtable occurrence pertammg to the outage or power sh suld be noted, even though the unit may not have been reduction. Enter the first four parts (event year, sequential shut down completely!. For such reductions m power level, report number, occurrence code and report type) of the five the duration should be listed as zero, the method of reduction part designation as desenbed in item 17 of Instructions for should be listed as 4 (Other), and the Cause and Corrective Preparation of Cata Entry Sheets for Licensee Event Report Action to Prevent Recurrence column should explam. The (LER) Fde (NUREG4161). This information may not be Cause and Corrective Action to Prevent Recurrence column immediately evident for 11 such shutdowns, of course, smce should be used to pnmde any needed explanation to fully further investigation may be required to ascertam whether or desersbe the circumstances of the outage or power redoetion.

not a reportable occurrence was involved.) If the outage or power reduction will not result in a reportable occurrence.

NUM BER. Ilus column should indicate the sequential num-the positive indication of this lack of correlation should be ber assigned to each shutdown or significant reduction m power noted as not applicable (NIA).

for that calendar year. When a shutdown or sigmficant power SYSTEM CODE. The system m which the outage or power reduction begms m one report penod and ends m another.

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an entry should be made far both report renods to be sure all shutdowns ut sigmticant pvwer reductions are reported.

Exhibit G Instructions for Preparation of Data Entry Sheet >

Untd a unit has @eved its first power generation, no num-f r Licensee Event Report (LER) File (NCREG4161).

ber should be assigned to each entry.

Systems that do not fit any existing code should be designa-ted XX. The code ZZ should be used for those events v.here DATE. This column should md's ate the date of the start a system is not applicable.

of eash shutdown or wgmticant power reduction. Report as y ear. month and day. August 14.197* would be reported COMPONENT CODE. Select the most appropriate compon:nt as '70814. When a shutdown or sigmficant power reduction from Exhibit ! Instructions for Preparation of Data Entry begmsin one report period and ends m another, an entry should Sheets for Laensee Event Report (LER) File (NUREG4161 p.

be made for both report penods to be sure all shutdowns usmg the followmg critieria:

or significant power reductions are reported.

TYPE. L se "F" or "S" to ind;cate either " Forced" or "Sehe-Juled.' respectnely, for each shutdown or sigmficant power B.

If not a component failure. use the related componer-reJuction. Forced shutdowns melude those required to be e.g.

wrong valve operated through error; hst valve n tmt ated by no later than the weekend followmg discosery component.

of an of f.normai condition. It is recognued that some judg.

ment is required in categorumg shutdowns m this way, in C.

If a cham of failures occurs. the first component to mai.

gneral, a forced shutdown is one that would not hase been function should be hsted. The sequence of events.melud-completed m the absence of the condition for whieh corrective ing the other components wtuch fail, should be desenbed action a as taken.

under the Cause and Corrective Action to Present Recur-rence column.

DURATION. Self explanatory. When a shutdown extends Components that do not fit any existine code should be de-beyond the end of a report penod.wount only the time to the signated XXXXXX. The code ZZZZZZ shoula be used for end of the report penod and pick up the ensumg down time events where a component designation is not appheable.

m the rollowmg report renods. Report durauon of outages rounded to :he nearest tenth of an hour to facilitate summation.

CAUSE & CORRECTIVE ACTION TO PREVENT RECUR-The sum or the total outage hours plus the hours the genera-RENCE. Use the column in a narrative fastuon to amphis or for was on hne should equal the gross hours m the reportmg explain the etrcumstances of the shutdown or power reduct$on.

pe nod.

The column should include the specific cause for each shut.

down or significant power reduction and the immediate and REASON. (.ategorge h>

lene Jeuenanon in accordance contemplated long term corrective action taken. If appropn-wnh the tanle appearmg on the report form. If estegory H are. This column should also be used for a description of the must be used. >upply bnet somments.

fety related corrective maintenance performed dunng the outace or power reduction including an identification of METHOD OF SHUTTING DOWN THE REACTOR OR the entical path aetmty and a report of any single release of REDUCING POWER.

Casesoive by number designation radioactmts or smgle radiation exposure specifically assosi.

3%ie thJr this ditters f rom the Edison Electric Institute ated with the outage which accounts for more than 10 percent iEH) Jelinitions o1 "For6ed Parual Outage" and " Sche, of the allowable annual vr. lues.

Juled PJitul Oulage.

F or the>e teim-1 I I u>c3 a shange of For long testual reports contmue narrative on separate paper 10 MW as the nreak pomt f oi urce pouci reactors.10 M%

and rettrense the shuidown or power reJust.on roi uns o io. > mall a, hance to w anani aplanahon n ai rative.

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1 of 2 F11:rilAMICAI. MAINTI:NANCI: - OCTOBER 1979 LER Olt fiATURE Of DUTAGE

_ _ __ MALFurtCT10fl EOUlit1EllT MAIflTEllAtlCE f..,Mf.I R fAUSE RESULT CORRECTIVE ACTIO*l g -- -

e MAIN STEAM BYPASS CORRECTIVE OUTAGE WEAR OIL LEAKAGE FROM INSTALLED NEW 0-RINGS VALVE ACTUATOR MR #2794 79-13 SERVO IN SERVO BLOCK SERVO VALVE SEAL INJECTION PUMP CORRECTIVE OUTAGE FLAW IN ORIG-WATER LEAKAGE OVERLAYED BOTTOM OF DISCIIARGE ACCUMU-MR #2800 79-13 INAL CASTING TIIROUGH FLAW PLUG WITil WELD TO LATOR SEAL FLAW CONDENSATE TO GLAND CORRECTIVE OUTAGE WEAR VALVE INTERNALS REPLACED VALVE WITII STEAM GENERATOR MR #2675 79-13 WORN AND NOT NEW VALVE OF SUPERIOR CONTROL VALVE REPLACEABLE MATERIALS LOWER CONTROL ROD PREVENTIVE OUTAGE NA NA PERFORMED PM'S DRIVE #21 AND #28 MR #2824 79-13 UPPER CONTROL ROD CORRECTIVE OUTAGE SCORING ON EXCESSIVE LEAK-REPLACED MECIIANICAL DRIVE #10 MR #2822 79-13 STELLITE FACE AGE TIIROUGli SEAL AND PERFORMED ON MECIIANICAL SEAL CAUSING A PM SEAL SIIORT OF A SCRAM SOLENOID TURBINE OIL PURIFIER PREVENTIVE OUTAGE NA NA CLEANED AND REPLACEO MR #2781 79-13 BEARINGS AND GASKETS MOUNTING FLANGE FOR CORRECTIVE OUTAGE MOUNTING BOLT BOLT SIIEARED BROKEN PART OF BOLT UPPER CONTROL ROD MR #2822 79-13 SEIZED DURING WAS DRILLED AND RE-DRIVE #10 REMOVAL OF MOVED.

TIIREADS WERE UCRD #10 CLEANED WITII A TAP.

LOWER CONTROL ROD CORRECTIVE OUTAGE APPARENT DE-OIL LEAKAGE PACKING RECEIVED FROM DRIVE NOS. 18, 19, MR #2816 79-13 FECTIVE PAST SIIAFT 1979 PURCIIASE WAS RE-21 AND 2 PACKING PACKING MOVED AND 1977 PACK-ING WAS INSTALLED lA REACTOR FEED CORRECTIVE OUTAGE WEAR EXCESSIVE LEAK-INSTALLED NEW MECilAN-PUMP MR #2812 79-13 AGE ICAL SEAL AND O-RINGS b 3 ']

2 of 2 MECHANICAL MAINTENANCE

- OCTOBER 1979 LER OR NATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 1B CIRCULATING PUMP CORRECTIVE NA UNKNOWN BROKEN DRAIN REPAIRED BROKEN MR #2846 PIPE ALLOWING DRAIN PIPE WATER TO DRAIN ON TO FLOOR ELECTRIC DRIVEN CORRECTIVE NA IMPROPERLY EXCECSIVE END REPLACED BEARING HIGH PRESSURE SERVICE MR #2851 MACHINED BEAR-PLAY OF PUMP RETAINER WITil WATER (HPSW) PUMP ING RETAINER SHAFT CAUSING PROPERLY MACHINED CAP PREMATURE FAIL-CAP AND REPLACED URE OF MECHAN-MECHANICAL SEAL ICAL SEAL 1B AND lA IIPSW PREVENTIVE NA COOLANT HOSES NA REPLACED COOLANT DIESELS MR #2850 OLD AND HOSES AND ADDED MR #2854 CRACKED ANTIFREEZE

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1 of 2 IllSTRUMIllT AllD ELECTRICAL MAlflTEtlANCE - OCTOBER 1979 LER OR flATURE OF OUTAGE MALFUNCT10ft EQUIPMEllT MAINTEllANCE NilMCER CAUSE RESULT CORRECTIVE ACTION FORCED CIRCULATION CORRECTIVE OUTAGE OPEN WIRE POSITION INDI-REPLACED WIRE ON PUMP DISCHARGE VALVE MR #2789 79-13 CATOR INOPER-POTENTIOMETER ABLE FORCED CIRCULATION CORRECTIVE OUTAGE SETPOINT CHECK ADJUSTED SET-CALIBRATED PRESSURE AUXILIARY OIL PRESSURE MR #2707 79-13 POINT SWITCH SWITCH GENERATOR EXCITATION CORRECTIVE OUTAGE CARBON DUST LOW RESISTANCE CLEANED BRUSH RIG MR #2819 79-13 TO GROUND AND BED PLATE GENERATOR MAIN A.C.

CORRECTIVE OUTAGE COIL BURNOUT BREAKER INOPER-REPLACED OIL AND OIL PUMP MR #2817 79-13 ABLE TESTED BREAKER DEMINERALIZED WATER CORRECTIVE OUTAGE DEFECTIVE SEAL LEAKING VALVES REPLACED 1A & IB MR #2815 79-13 SOLENOID VALVES CONTROL ROD DRIVE PREVENTIVE OUTAGE P.M.

DUE COMPLETED P.M.

REPLACED CRD INSERT /

79-13 WITHDRAW CONTROL SWITCH CONTROL SWITCHES PREVENTIVE OUTAGE P.M.

DUE COMPLETED P.M.

CLEANED AND LUBRICATED 79-13 ALL C/R CONTROL SWITCHES WELDING OVEN PREVENTIVE NA P.M.

DUE COMPLETED P.M.

CHECKED WELDING ROD OVEN FOR CORRECT TEMPERATURE SETPOINT HYDROGEN CONCENTRA-PREVENTIVE NA P.M.

DUE COMPLETED P.M.

TESTED ALARM SETPOINT TION CONTROL ROD DRIVE PREVENTIVE OUTAGE P.M. DUE COMPLETED P.M.

TESTED PRESSURE SWITCHES 79-13 FOR CRD NOS. 18, 19, 21,

& 28.

SEAL INJECTION CORRECTIVE OUTAGE CALIBRATION TESTED SETPOINT CALIBRATED INDICATOR MR #2826 79-13 REQUEST AND CONTROLLER

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2 of 2 INSTRUMENT AllD ELECTRICAL MAINTENANCE - OCTOBER 1979 LER OR NATURE OF OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION OFF-GAS FLOW CORRECTIVE OUTAGE CALIBRATION TESTED SETPOINT CALIBRATED FLOW MR #2825 79-13 REQUEST INDICATOR-CONTROL ROD DRIVE CORRECTIVE OUTAGE DAMAGED DURING INOPERABLE REPLACED POSITION MR #2828 79-13 MAINTENANCE SECONDARY POS-WAND FOR CRD UNIT MR.#2835 ITION INDICATOR

1. 21 AND #10 CONTROL AIR DRYER PREVENTIVE OUTAGE P.M.

DUE COMPLETED P.M.

INSTALLED NEW 0-RINGS MR 42832 79-13 ON AIR OPERATED CON-TROL VALVES NUCLEAR INSTRUMENTA-CORRECTIVE NA DEFECTIVE VOLTAGE TOO REPLACED CIIANNEL N-5 TION POWER SUPPLY MR #2857 RELAY CONTACTS IIIGli POWER SUPPLY WITil SPARE UNIT TECIINICAL SPECIFICA-PREVENTIVE NA TESTS DUE COMPLETED TESTS NUCLEAR INSTRUMENTA-TION TESTS TION TESTS N-1 TIIROUGli N-9, WEEKLY FIRE AND BATTERY TESTS, SAFETY SYSTEM CIIANNELS 1, 2,

AND 1I 0 # 3, BI-WEEKLY 2

RADIATION MONITOR TESTS SECURITY SYSTEM PREVENTIVE NA CLEAN AND TEST COMPLETED P.M.

CLEANED AND TESTED EXPLOSIVE DETECTOR

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE OCTOBER 1979 At the onset of the October reporting period, the plant was in a shutdown condition in order to replace the mechanical seal in the upper drive assembly of the control rod drive mechanism in Position No. 10.

Excessive leakage from that seal had led to seal leak-off water accumulating on one of two solenoid operated hydraulic valves of this assembly causing the solenoid to short which then opened the hydraulic valve.

The resultant movement of the scram accumulator piston led to low hydraulic system pressure which caused a partial scram.

This action reduced the seal leakage, however, with subsequent rod withdrawal during rod scram testing, the leakage returnedand it was necessary to shut down and cool down the reactor to accomplish seal repair.

This occurred on September 28, 1979.

The reactor was taken critical at 2102 on October 6th, but was shut down at 0052 on October 7th due to excessive hydraulic oil leakage from Lower Control Rod Drive Assembly #21.

Upon completion of repairs, the reactor was brought critical at 1430.

The turbine generator was synchronized to the DPC grid at 1415 on October 8th, but response problems in the turbine governor control system led to the turbine-generator being taken off-line at 1445.

The turbine-generator was reconnected to the DPC grid at 1755.

Power escalation continued until October 10th when 85% of Reactor Rated Thermal Power (40 MWe-Net) was reached.

Power generation continued at this level throughout the remainder of the reporting period.

This operating power level has been scheduled to stretch optimum production until March 1980 to extend core life.

Significant maintenance items performed during the October 1979 reporting period are indicated on the attached Instrument and Electrical Maintenance and Mechanical Maintenance listings.

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