ML20076L384

Monthly Operating Rept for June 1983

ML20076L384
Person / Time
Site:	Duane Arnold
Issue date:	07/15/1983
From:	Mary Anderson, Mineck D IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
DAEC-83-560, NUDOCS 8307190152
Download: ML20076L384 (8)

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. OPERATING DATA REPORT DOCKET NO. 050-0331 DATE 7-15-83 COM'LETED BY Matt Andersen TELEPHONE 319-851-7308 l

OPERATING STATUS Notes

1. Unit Name Duane Arnold Energy Center <

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2. Reporting Period J une, 1983  !

3. Licensed Thermal Power (Mtt): 1658 l f4. Nameplate Rating (Gross Mde): 565 (Turbine Rating)  !

5. Design Electrical Rating (Not We): 538

6. Maximum Dependable Capacity (Gross Mie): 545

7. Maximun Dependable Capacity (Not Mdo): 515

8. If Changes Occur in Capacity Ratings (items Nisaber 3 Through 7) Since the Last Report, GIvo Reasons:

9. Power Level to Which Restricted, if An y (Not Mde):

10. Reasons for Restrictions, if Any:

This M> nth Yr-to-Date Cisnulative

11. Hours in Reporting Period 720.0 4343.0 73727.0

12. Number of Hours Reactor Was Critical 162.8 1799.6 52055.9

13. Reactor Reserve Shutdown Hours 0 .0 0 .0 0 .0

14. Hours Generator On-Line 89.8 1673.3 50608.5

15. Unit Reser we Shutdown Hours 0 .0 0 .0 0 .0

16. Gross Thermal Energy Generated (Mei) 115886.4 1998648.0 62368168,0

17. Gross Electrical Energy Generated (Mei) -38423.0 675358.0 20890275.0

18. Not Electrical Energy Generated (Mei) 35984.0 629998.1 19544270.5

19. Unit Service Factor 12.5% '38.5% 68.6%

l 20. Unit Availability Factor 12.5% 38.5% 68.6%

?.l. Unit Capacity Factor (Using POC Net) 9.7 % 28.25 51.5%

22. Unit Capacit y Factor (Using DER Net) 9.3% 27.0% 49.3%

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23. Unit Forced Outage Rate 87.5% 27.4% 18.2%

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

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

Turbine Rating: 565.7 Mio

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- Generator Rating: 663.5 (MfA) x .90 (Power Factor) = 597 Mde pyan*a8%

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, AVERAGE DAILY UNIT POER LEVEL DOCKET NO. 050-0331 UNIT Dueno Arnold Energy Center DATE Jul y 15, 1983 1

CO WLETED BY htt Andersen TELEPHONE 319-851-7308 M) NTH June, 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POER LEVEL

( Mio-Net) (Mdo-Net) 1 499 17 0 2 522 18 0 3 347 19 0 4 0 20 0 5 3 21 0 6 0 22 0 7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 11 0 27 0 12 0 28 0 13 0 29 0 14~ 0 30 229 15 0 31 N/A 16 0 INSTRUCTIONS l On this format, list the everage dell y unit power level in Mie-Net for each dey in the reporting month Compute to the nearest-whole megewett.

(9/77) 1

UNIT SHUTDOONS AND POWER REDUCTIONS Dsckot N3 050-0331 , ,.

Ualt N]oo Dxeso Arenid Emercy Cneter Dato Jul y 15, 1983 REPORT MONTH June, 1983 Completed by Ma tt Andersen .

Telephone 319-851-7308 -

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c- n *fa Licensee $ Cause & Corrective No. 'Date ", 3[ $ ]7* Event' 8, En Action to F

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o f$c ewa Report # $'

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a o Prevent Recurrence j- E x g no go 7 830603 F 32.7 A 3 N/A N/A N/A Reactor scram on low. water level due to "B" RFP trip on low suction pressure caused b y CV-1611 falling open.

8 830605 F 597.5 A 1 N/A N/A N/A Turbine vibration and subsequent problems with secondar y plant equipment. -.

t I 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram. Entry Sheets for Licensee C-Refueling 3-Automatic Scram. Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Other(Explain) 0161)

E-Operator Training & License Examination F-Administrative 5

-G-Operational Error (Explain) Exhibit 1-Same Source (9/77) H-Other(Explain)

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Dschst.No. 050-0331-i* Unit Duane Arnold Enera y Ctr Date July 15, 1983 i Completed b y Ma t t Anderson  !

. Telephone 319-851-7308 REFUELING I NFOR MAT I ON

1. .Name of f acilit y. .i A. . Duane Arnold Energy Center 2.: Scheduled date for next refueling' shutdown.

A. Fall, 1984 3.; -Scheduled date for restart-following refueling.

A. Fall 1984 4 Wi l l'. ref uel ing or- res umption of operation thereafter require a i technical' specification change or other license amendment?

None curren'tl y identi f ied.

'5 Scheduled date(s) for submitting proposed licensing action-and supporting information.

N/A

6. Important:llconsing. considerations associated with refueling, e.g., new

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i or different fuelldesign or supplier, unreviewed design or-performance ana l ys i s methods, signifIcant changes'In fuel design, new operating j i

-procedures..

None-

' 7.. . The n umber of fuel assemblies-(a).In the core and (o)/in the spent fuel, storage pool.:

l A..a) 368. 'b)'576 ,

8.' The present_ licensed spent.. fuel pool . storage capacity and the size of en y increase in licensed storage capacit y that.has been - requested or -is

-planned, In number.'of fuel assemblies.

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' A . -- 20 50 -

9 .The projected date.of the last ref ueling that. can' be discharged-. tof the spent f uel o pool assuming : the present l icensed capacit y.-

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• , Dschet.Ms. 050-0331 c Unit Du*no Arnold Enora y Ctr

• Date Jul y 15, 1983 Completed b y fktt Anderson Telephone 319-851-7308 NARRATI VE

SUMMARY

OF OPERATING EXPERIENCE 6-1-83 Plant in normal operation at 479 MWo.

6-3-83 At 1552 hours0.018 days <br />0.431 hours <br />0.00257 weeks <br />5.90536e-4 months <br />, reactor scram on low water level due to "B" RFP trip on. low suction pressure caused b y CV-1611 falling open.

At 1834 hours0.0212 days <br />0.509 hours <br />0.00303 weeks <br />6.97837e-4 months <br />, modo switch transferred to Startup.

6-4-83 At 1732 hours0.02 days <br />0.481 hours <br />0.00286 weeks <br />6.59026e-4 months <br />, reactor critical.

At 2322 hours0.0269 days <br />0.645 hours <br />0.00384 weeks <br />8.83521e-4 months <br />, mode switch placed in Run.

6-5-83 At 0032 hours3.703704e-4 days <br />0.00889 hours <br />5.291005e-5 weeks <br />1.2176e-5 months <br />, main generator on-line.

Ma i n turbine trip at 0111 hours0.00128 days <br />0.0308 hours <br />1.835317e-4 weeks <br />4.22355e-5 months <br />, #2 turbine bearing vibration at 10 mils.

Ma i n generator on-l i ne at 0152 hours0.00176 days <br />0.0422 hours <br />2.513228e-4 weeks <br />5.7836e-5 months <br />, power at 12 MWo .

Ma n ua l turbine trip at 0338 hours0.00391 days <br />0.0939 hours <br />5.588624e-4 weeks <br />1.28609e-4 months <br /> due to #2 bearing vibration.

At 0412 hours0.00477 days <br />0.114 hours <br />6.812169e-4 weeks <br />1.56766e-4 months <br />, main generator on-line.

Turbine trip at 0519 hours0.00601 days <br />0.144 hours <br />8.581349e-4 weeks <br />1.974795e-4 months <br /> due to #2 bearing vibration.

6-9 At 0245 hours0.00284 days <br />0.0681 hours <br />4.050926e-4 weeks <br />9.32225e-5 months <br />, reactor critical.

Mode sw i tch transferred to Run at 1305 hours0.0151 days <br />0.363 hours <br />0.00216 weeks <br />4.965525e-4 months <br />.

Turbine trip at 1441 hours0.0167 days <br />0.4 hours <br />0.00238 weeks <br />5.483005e-4 months <br /> due to high vibration.

At 1927 hours0.0223 days <br />0.535 hours <br />0.00319 weeks <br />7.332235e-4 months <br />, commenced reactor shutdown to Inspect #2 bearing and turbine thrust bearings.

6-11-83 Turbine bearing inspection revealed #2 bearing wiped and journal scored.

6-13-83 Reactor in cold shutdown.

6-27-83 At 2010 hours0.0233 days <br />0.558 hours <br />0.00332 weeks <br />7.64805e-4 months <br />, commenced reactor startup.

At 2142 hours0.0248 days <br />0.595 hours <br />0.00354 weeks <br />8.15031e-4 months <br />, reactor critical.

6-28-83 Reactor subcritical.at 0421 hours0.00487 days <br />0.117 hours <br />6.960979e-4 weeks <br />1.601905e-4 months <br /> f or dr yw e l l Inspection.

6-29-83 At 0944 hours0.0109 days <br />0.262 hours <br />0.00156 weeks <br />3.59192e-4 months <br />,' reactor critical.

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Doc kst Nai 050-0331 t

j Unit Duenn Arnold Energ y Ctr

• *, Date Jul y 15, 1983 x Completed b y Matt Anderson

- Telephone 319-851-7308

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NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE

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. 6-30-63 'At 0137 hours0.00159 days <br />0.0381 hours <br />2.265212e-4 weeks <br />5.21285e-5 months <br />, main generator on-line.

Reactor coolant conductivit y increased to 2.504 micrombos and pH r

- decreased to 4.95, below Tech Spec 3.6.ts .2.d , l i mi t of pH (5.6 to

, 8.o). Conductivit y and pH returned to normal within allowable 24

!'- hour period.

At:2245 hours, plant.in normal operation at-234 MWo .

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'lowa Electric Light and Ibwer Company July 15, 1983 DAEC-83 560 Director, Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.- 20555 Attn: Document Control Desk

Subject:

Monthly Operating Report File: A-118d, TE-5

Dear Sirs:

Please find enclosed 12 copies of the Duane Arnold Energy Center Monthly

-Operating Report for July, 1983. The report has been prepared in accordance with the requirements of Regulatory Guide 1.16 and distribution has been made in accordance with Regulatory Guide 10.1 and Technical Specification 6.11.1.c. .

Very truly yours, Daniel L. Mineck P1 ant Superintendent - Nuclear Duane Arnold Energy Center DLM/MWA/pf*

Enclosures cc: Director, Office of Inspection Mr. Phillip Ross and Enforcement U. S. Nuclear Regulatory Commission U. S. Nuclear Regulatory Comnission Maryland National Bank Bldg.

Region III Washington, D. C. 20555 799 Roosevelt' Road Glen Ellyn, IL 60137.:(1) NRC Resident Inspector Director, Office of Management and Mr. Dennis Murdock

' Program Analysis . - Central Iowa Power Cooperative U. S. Nuclear Regulatory Commission Marion, IA 52302 Washington, D. C. 20555 (1)

Mr. George Toyne, Gen. Mgr.

U.-S. Nuclear Regulatory Commission Corn -Belt Power Cooperative ATTN: Mr. Frank-Apicella . Box 508-Phillips Bldg. Mail 416 Humboldt, IA 50548 Washington, D. C. 20555 INPO Records Center

'1100 Circle 75 Parkway Suite 1500 J-Atlanta, GA. 30339._ -

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