Text

Monthly Operating Rept for Aug 1986
	ML20210B049
Person / Time
Site:	Duane Arnold
Issue date:	08/31/1986
From:	Bernard Thomas; IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	;
Shared Package
ML20210A941	List: ML20210A934; ML20210A956; ML20210B025; ML20210B049;
References
	NUDOCS 8609170435
	Download: ML20210B049 (9)
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OPERATING DATA REPORT DOCKET NO. 050-0331 DATE 09-15-86 COMPLETED BY Bradford N. Thomes TELEPHONE 319-851-7309 OPERATING STATUS-Notes

1. Unit Name Oueno Arnold Enerny Center

2. Reporting Period Aueust. 1986

3. Licensed Thermal Power (MWt):

1658

4. Nomeplete Rating (Gross MWe):

565 (Turbine)

S. Design Electrical Rating (Not MWe):

538

6. Menimum Depenable Capacity (Gross MWe):

545

7. Newlmum Dependoble Capacity (Not MWe):

515

8. If Changes Occur in Cepecify Ratings (ltens Number 3 Through 7) Since the Last Report, Give Reasons:

9. Power Level to which Restricted, if Any (Not MWe):

10. Reasons for Restrictions, if Any:

This Month Yr-to-Oste Cumulative

11. Hours in Reporting Period 744 5831 101519

12. Number of Hours Reactor Was Critical 744 5157.5 72479.4

13. Reactor Reserve Shut &wn Hours 0

42.5 192.8

14. Hours Generator On-Line 744 5060.2 70619.7

15. Unit Reserve Shut &wn Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 876773 6451260 89057495

17. Gross Electrical Energy Generated (MWH) 287290 21678 %

29823957

18. Not Electrical Energy Generated (MWH) 268185 20349 %

27931593

19. thlt Service Factor 100 86.8 69.6

20. Unit Avellability Factor 100 86.8 69.6

21. Unit Capacity Factor (Using MDC Net) 70.0 67.8 53.4

22. Unit Capacity Factor (Uning DER Net) 67.0 64.9 St.1

23. Unit Forced Outage Rete 0

2.3 15.1

24. Shutewns Scheeled Over Next 6 mnths (Type, Date, and Duration of Each):

Refuel Outone currently scheduled for February. 1987,

25. If Shut Dawn At End 0f Report Period, Estimated 0ste of Startup N/A 8609170435 060915 PDR ADOCK 05000331 R

PDR (9/77)

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-0331 WIT Duane Arnold Enerav Center DATE 09-15-86 COMPLETED BY Bradford N. Thomas TELEPHONE 319-851-7309 MONTH August, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWBt LEVEL (MWe-Net)

(MWe-Net) 1 524 17 458 2

530 18 497 3

515 19 504 4

524 20 478 5

476 21 462 6

83 22 454 7

38 23 475 8

36 24 434 9

35 25 405 10 37 26 416 11 37 27 503 12 36 20 527 13 165 29

_3A8 14 292 30 452 15 448 31 474 l&

477 INSTRUCTIONS On this format, list the everage delly unit power level in MWe-Net for each day in the reporting month. Compute ths nearest whole megewett.

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Do:1 k :,t No, ~50-0331 c

U25t NamD D'-

iAr~

id E - ray Ce ter Dato 09-15-86 CAJOR/ SAFETY RELATED M A I NT E ANC E Cam? I ctod by B rn df er d N.

Th-Telephone 319-851-7309 DATE SYSTEM COMPONENT DESCRIPTION

'A' Core Soray Limitorque Motor Operaters inspection and replacement of Limitoroue 03/01/86

'B' Core Spray Motor Operators Internal wiring to ensure thrcugn Reactor Core Isolation Cooling compliance with En v i ronme n ta l Qualification 09/19/86 (RCIC)

(EQ) Stan dar ds

'A'

'88 R e s i du a l Heat Removal (RHR)

Low Pressure Coo l a n t Injection (LPCI) Mo de

'A'

'B' RHR Service Water

'A'

'B' Containment Spray

'A',

'B',

'C',

'O' Main Steam Line Isolation Leakage Control Valves Containment Atmosphere Dilution (CAD) 08/05/86

'A' RHR LImitorque Motor Operator Torque Removed an d cleaned di r t y torque switch Switch contacts on suppression pool suction isolation valve to

'A' system RHR pump.

08/08/86

'A' Containment Spray Limitorque Motor Operator Motor Replaced the motor pinion gear on the

'A' Pinion Gear containment spray control valve motor operator which he d f a i le d.

08/13/86 Fire Protection System Electric Fire Pump Repacked the Electric Fire Pump 08/27/86 RHR a n d Co r e Spray Un i t Room Coolers Removed from service for yearly inspection and lubrication.

08/29/86 Main Steam Line isolation

'B' Outboar d MSlY Limit Switch Adjusted MSiv limit switch relay arm.

Valves (MSIV) 08/30/86 St an dby Gas Treatment Carbon Be d inlet Temperature Replaced 2 bad resistors in the

'A' SBGT In di cator carbon bed inlet temperature i n di cator.

Dsckot N3. 050-0331 Unit Noso Duenq Arnal d E?rray C*nt r Doto 09-15-86 Completed by Bra dfor d N.

Thomas Telephone 319-851-7309 REFUELING INFORMATION 1

Name of facility.

A.

Quane Arnoi d Energy Center 2

Sche du l e d date for next ref uel ing shut down.

A.

February, 1987 3

Sch e da t e d date for restart following refueling.

A.

April. 1987 4

Will refueling or resumption of operation thereafter require a technical specification change or other llconse amen dmen t ?

Yes A.

Reloa d license submittal B. ' Additiona l MAPLHGR curves f or new fuel bun dies belng ' Introduced

~

for Cycle 9 5.

Sche du l e d date(s) for submitting proposed licensing action and supporting Information.

A.

October 1986 B.-

October 1986 6

Important licensing consi derations associated with refueling, e.g.,

new or di f f erent fuel design or supplier, unreviewed de s i g n or performance ana lysis metho ds, significant changes in fuel design, new operating proce dur es.

None 7

The number of fuel assemblies (a) In the core and (b) In the spent fuel storage pool.

A.

a) 368 b) 696 8

The present licensed spent fuel pool storage capacity an d the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies.

A.

2050 9

The projectod da t e o f the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.

A.

1998

D2ckot Ns. 050-0331 Unit Nsse Duenn Arnstd Ee ray Crnter Dato 09-15-86 Co:pleted by Brndferd N. Thomes Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE 8-1-86 At the beginning of the month the DAEC was In normal power operation with 524 MWe(not) being provi ded to the grid.

At 0548 hours0.00634 days 0.152 hours 9.060847e-4 weeks 2.08514e-4 months a 30 day Limiting Con dition for Operation (LCO) was entered when a Reactor Water Cleanup Conductivity in dicating Transmitter showed erratic behavior.

A mo du l e board was replaced and callbrated an d the unit. was successf ully returne d to service at 2143 hours0.0248 days 0.595 hours 0.00354 weeks 8.154115e-4 months on 8-8-86 thus terminating the LCO..

At 1817 hours0.021 days 0.505 hours 0.003 weeks 6.913685e-4 months the

'A' Core Spray System was dec l ar e d Inoperable and a 7 day LCO was entered when the

'A' Low Pressure Core Spray (LPCS) stop valve woul d not stroke reliably, investigation revealed contacts hanging up on the stator. A new contact kit was Installed an d the valve was returned to service af ter successful post-maintenance testlag.

The LCO was exited at 2145 hours0.0248 days 0.596 hours 0.00355 weeks 8.161725e-4 months .

8-2-86 At 0619 hours0.00716 days 0.172 hours 0.00102 weeks 2.355295e-4 months a 7 day LCO was entered when the

'B' Core Spray was declared inoperable in or der to replace wlre in safety related limitorque motor operated valves (MOVs) to comply with En v i ro n'me n t a l Quellfication (EQ) s ta n dar ds.

The

'B' Core Spray System was returned to service at 1716 hours0.0199 days 0.477 hours 0.00284 weeks 6.52938e-4 months on 8-3-86 at which time the LCO was terminated.

At 1405 hours0.0163 days 0.39 hours 0.00232 weeks 5.346025e-4 months a 7 day LCO was entered when the Reactor Core isolation Cooling (RCIC) System was removed from service f or planne d maintenance.

The wire in the llait switch and torque switch compartmont was replaced with EQ wir&. The RCIC system was returned to service at 1716 hours0.0199 days 0.477 hours 0.00284 weeks 6.52938e-4 months on 8-3-86 thus en ding the LCO.

8-4-86 At 0627 hours0.00726 days 0.174 hours 0.00104 weeks 2.385735e-4 months the

'A' Res i dua l Heat Removal (RHR) Low Pressure Coolant injection (LPCI) mo de was removed from service for planned maintenance on safety related motor operated valves. This placed the plant in a7 day LCO.

EQ wire was installed in several limitorque MOVs.

After successful post-maintenance testing the

'A' RHR LPCI system was returned to service at 0153 hours0.00177 days 0.0425 hours 2.529762e-4 weeks 5.82165e-5 months on 8-6-86 thus cancelling the LCO.

At 1230 hours0.0142 days 0.342 hours 0.00203 weeks 4.68015e-4 months the

'A' RHR Service Water (RHRSW) system and the

'A' Containment Spray system were removed from service. This placed the plant in two 30 day LCOs.

Several Limitorque MOVs had their internal wiring changed out to comply with EQ Stan dar ds.

The LCOs were terminated at 0153 hours0.00177 days 0.0425 hours 2.529762e-4 weeks 5.82165e-5 months on 8-6-86 when the respective systems were returned to their normal standby status.

8-5-86 At 2356 hours0.0273 days 0.654 hours 0.0039 weeks 8.96458e-4 months operators began reducing reactor power to allow access to the steam tunnel for planned maintenance on the Main Steam Line Isolation Leakage Contro l Valves (MSIV-LCS).

Fower was to remain at approximately 7% of rated thermal power for 8 days so planne d EQ maintenance could be performed.

Docket No. 050-0331 Unit Name Ouane Arnold Energy Center Date 09-15-86 Completed by Bra df or d N. Thomas Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE 8-6-86 At 1040 hours0.012 days 0.289 hours 0.00172 weeks 3.9572e-4 months a 30 day LCO was entered when a torus level reco r der was removed from service for planned callbration. The LCO was ter mi nat e d at 0849 hours0.00983 days 0.236 hours 0.0014 weeks 3.230445e-4 months on 8-7-86 when the

'C' recor der was returned to service.

At 1233 hours0.0143 days 0.343 hours 0.00204 weeks 4.691565e-4 months a 30 day LCO was entered when the 'B ' MS IV-LCS wa s dec l a r e d inoperable for planne d maintenance on safety related Limitorque Motor operators. The Internal wiring was replaced in the MOVs an d the

'B' train returne d to service on 8-8-86 at 2130 hours0.0247 days 0.592 hours 0.00352 weeks 8.10465e-4 months .

The LCO continued as the

'A' train was removed from service for EQ wire change out.

The

'A' train was returne d to service on 8-9-86 at 2109 hours0.0244 days 0.586 hours 0.00349 weeks 8.024745e-4 months at which time the

'D' train of CAD was removed from service for EQ rewire work.

The

'D' train was returned to service at 0456 hours0.00528 days 0.127 hours 7.539683e-4 weeks 1.73508e-4 months on 8-12-86 The

'C' train was then removed from service for EQ Inspections an d wire chan,ge out.

The MSlV-LCS was fully returned to service at 0236 hours0.00273 days 0.0656 hours 3.902116e-4 weeks 8.9798e-5 months on 8-13-86 thus terminating the original 30 day LCO.

8-7-86 At 0906 hours0.0105 days 0.252 hours 0.0015 weeks 3.44733e-4 months a7 day LCO was entered when the

'A' RHRSW system was removed from service for planned EQ rewire maintenance. The LCO was cancelled at 1600 hours0.0185 days 0.444 hours 0.00265 weeks 6.088e-4 months when the system was returned to service after successful post-maintenance testing.

At 1040 hours0.012 days 0.289 hours 0.00172 weeks 3.9572e-4 months a 30 day LCO was entered when a Torus level recor der was removed from service for planne d cal i bration.

The LCO was terminated at 1332 hours0.0154 days 0.37 hours 0.0022 weeks 5.06826e-4 months when the

'B' r ecor der was returned to service.

8-8-86 At 0848 hours0.00981 days 0.236 hours 0.0014 weeks 3.22664e-4 months a 30 day LCO was entered when the

'A' containment spray control valve was dec l a re d Inoperable. The motor operator for MO-2001 kept running after the valve had closed during surveillance testing.

Investigation reveale d the mo to r pinion gear ha d sh eare d.

On 8-13-86 at 1840 hours0.0213 days 0.511 hours 0.00304 weeks 7.0012e-4 months the motor pinion gear was Installed an d MO-2001 successfully passed post-maintenance testing requirements. This in turn terminated the LCO.

8-13-86 At 1235 hours0.0143 days 0.343 hours 0.00204 weeks 4.699175e-4 months a7 day LCO was entered when the Electric Fire Pump was remove d from service for planned maintenance. The pump was repacked an d returned to its normal stan dby status at 1352 hours0.0156 days 0.376 hours 0.00224 weeks 5.14436e-4 months on 8-14-86 The LCO was terminated at this time.

At 2236 hours0.0259 days 0.621 hours 0.0037 weeks 8.50798e-4 months the foll3 wing LCOs were entered in preparatlon for Limitorque MOV EQ r e w i r e maintenance:

7 day LCO -

'B' RHR (LPCI mo de) 30 day LCO -

'B' Containment Spray

+

7 day LCO -

'B' RHRSW

Docket No. 050-0331 Unit Ntco Duenn Arnald Energy Crnter Dato 09-15-86 Complotod by Bradfor d N.

Theces Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE The respective systems were returned to service and their LCOs terminated af ter successf ul post-maintenance testing at the following times:

'B' RHR (LPCI mo de) at 2030 hours0.0235 days 0.564 hours 0.00336 weeks 7.72415e-4 months on 8-15-86

'B' Containment Spray at 1345 hours0.0156 days 0.374 hours 0.00222 weeks 5.117725e-4 months on 8-18-86

'B' RHRSW at 1945 hours0.0225 days 0.54 hours 0.00322 weeks 7.400725e-4 months on 8-19-86 8-18-86 At 134 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months the Electrical Maintenance Supervisor Informed operations personnel that the motor pinion gear on MO-2001 ha d been installed backwar ds on 8-13-86 Post-maintenance testing on 8-13-86 revealed no abnormallties. A new gear-was or dere d an d the valve was dec l ar e d technically Inoperable, although the valve was fully demonstrated to be functional-on 8-13-86 and again on 8-18-86 The valve was in Its normal stan dby st,atus until 8-27-86 when the valve was removed from service for installation of a new motor pinion gear.which was Installed in the correct orientation with respect to the motor.

Investigation revea le d approximately one-ha l f of the motor pinion gear teeth were meshing with the motor drive Intermediate gear.

This did not have any effect on its post-maintenance testing stroke time requirements. The valve

'A' Containment Spray System was then returned to its normal standby status at 1712 hours0.0198 days 0.476 hours 0.00283 weeks 6.51416e-4 months on 8-27-86 This terminated the 30 day LCO.

It should be noted that this was the first time a motor pinion gear has ha d to be replaced at DAEC en d no other-Incorrect' installations are suspected to be present In the plant.

8-20-86 At 1425 hours0.0165 days 0.396 hours 0.00236 weeks 5.422125e-4 months a7 day LCO was entered when both Drywell ra di at ion monitor alr samplers were dec l a r e d inoperable when the low flow Ilghts were received in the control room.

Con den sa t ion was dr a l n e d from the units an d the LCO was exite d with the ' units returned to service at 1404 hours0.0163 days 0.39 hours 0.00232 weeks 5.34222e-4 months on 8-22-86 8-22-86 At 0233. hours Kaman 31 (Turbine Bull ding Exhaust Stack Exten de d Range Effluent Ra diation Mon itor) was de c l a r e d inoperable an d a 7 day LCO was entered when the unit locked up.

A new Central Processing Unit (CPU) was I nsta l l e d.

The LCO was cancel le d at 1230 hours0.0142 days 0.342 hours 0.00203 weeks 4.68015e-4 months with the system balng returned to service.

8-27-86 At 0600 hours0.00694 days 0.167 hours 9.920635e-4 weeks 2.283e-4 months a 7 day LCO was entered when the RHR an d Core Spray

'A' unit room cooler was removed from service for planne d maintenance. A yearly inspection and lubrication was perf ormed and the unit was returne d to service at 2003 hours0.0232 days 0.556 hours 0.00331 weeks 7.621415e-4 months thus cancelling the LCO.

8-28-86 At 0600 hours0.00694 days 0.167 hours 9.920635e-4 weeks 2.283e-4 months a 7 day LCO was entered when the RHR an d Core Spray

'B' unit room cooler was removed from service for a 6 month l u br i ca t io n.

The LCO was terminated at 0900 hours0.0104 days 0.25 hours 0.00149 weeks 3.4245e-4 months when the unit was returned to service.

Docket No. 050-0331 Unit Name Duane Arnold Eneroy Center Date 09-15-86 Completed by Bra df or d N.

Thomas Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE 8-29-86 At 0950 hours0.011 days 0.264 hours 0.00157 weeks 3.61475e-4 months power was re du c ed to approximately 60% to allow maintenance personnel to enter the steam tunnel for MSly limit switch maintenance.

The limit switch relay arm was a dj u s t e d and the valve passed post-maintenance testing requirements.

8-30-86 At-0524 hours a 7 day LCO was entered when the

'A' Stan dby Gas Treatment' System was removed from service when It was not ice d that the

'A' carbon bed inlet temperature i n dicator had failed do w n s c a l e. Two resistors were replace d in the Indicator an d the system returned to service at 1345 hours0.0156 days 0.374 hours 0.00222 weeks 5.117725e-4 months on 8-31-86 thus terminating the LCO.

8-31-86 At the en d of the month the DAEC was in normal power operation with 475 MWe(net) being provided to the grld.

Throughout the month of August the DAEC was power limited (243 hours0.00281 days 0.0675 hours 4.017857e-4 weeks 9.24615e-5 months requiring an approximate 55 re duction in power) due to high ambient temperatures which resulted in con den ser vacuum limits.

l

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ML20210B049

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