ML20106E576

Monthly Operating Rept for Sept 1984

ML20106E576
Person / Time
Site:	Duane Arnold
Issue date:	09/30/1984
From:	Mineck D, Putnam K IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
DAEC-84-662, NUDOCS 8410290318
Download: ML20106E576 (8)

Text

. - -

a

p. %.

e (PERATING DATA REPORT DOCKET NO. 050-0331 DATE 10-15-84 COWLETED BY Kenneth S. Putnam TELEPHOE 319-851-7456 OPERATING STATUS Notes

1. Unit Name Duane Arnold Enoray Center

2. Reporting Period September, 1984

3. Licensed Thermal Power (MWt):

1658

4. Nameplate Rating (Gross MWe):

565

5. Design Electrical Rating (Not MWe):

538

6. Maximum Dependable Capacity (Gross MWe):

54 5

7. Maximum Dependable Capacity (Not MWe):

515

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since the Last Report, Give Reascas

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

10. Reasons For Restrictions, if Any:

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 720.0 6575.0 84719.0

12. Number of Hours Reactor Was Celtical 686.2 5163.7 61115.2 _

13. Reactor Reserve Shutdown Hours 0.0 150.3 150.3

14. Hours Generator On-Line 678.0 5043.6 59486.3

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 783792 7245306 74993868

17. Gross Electrical Energy Generated (MWH) 247226 2416577 25110634

18. Not Electrical Energy Generated (MWH) 230675 22730 %

23511686

19. Unit Service Factor 94.2 76.7 70.2

20. Unit Availability Factor 94.2 76.7 70.2

21. Unit Capacity Factor (Using MDC Net) 62.2 67.1 53.9

22. Unit Capacity Factor (Using DER Net)

'59.6 64.3 51.6

23. Unit Forced Outage Rate 0.0 13.5 17.0

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

Refuel Outece. February 1985 l

l t

8410290318 840930 PDR ADOCK 05000331 H

R PDR pa f

i

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

October 21, 1984 l

t (9/77)

P.

• L

-t

..e AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-0331

~~

LMIT Duane Arnold Enerav Center

.DATE 10-15-84 COWLETED BY Kenneth S. Putnam TELEPHONE 319-851-7456 MONTH Sootember; 1984

-DAY-AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 476 17 339 2

'337 18 336 3

348 19 332

-4 422 20 333 5

39 3 21 333 6

336 22 331 7

329 23 328 8

-330 24 298 9

324

. 25 352

'10 333 26 351 11 331 27 347 12 258 28 301 13 298 29 12 14 362 30 0

15 39 3 31 16 336 lNSTRUCTIONS On this format, list the everage delly init power level In MWe-Net for each day in the reporting month. Compute to th) neerest whole megewett.

(9/77) i

f 4

i UNIT SHUTDOWNS AND POWER REDUCTIONS Docket Mc.

050-0331 Unit Name Duane Arnold Energy Center Date 10-15-84 REPORT MONTH September, 1984 Completed by Kenneth S.

Putnam Telephone 319-851-7456 vs O

te-cn u in C$

.-s c^

N Eo o

om c

vvo Licensee av eo Cause & Corrective Q-r-

L-O O4E WQ co N3.

Date

>s

1. s m

cs Event au o

Action to F-eo e

e.c c a.

g c, jg gu1g Report #

v)

Prevent Recurrence g

o o

u 8

9-29-84 5

42.0 8

1, 3 84-037 JC MON Spurious IRM Upscale Trip at less than 15 power during scheduled shutdown.for unrelated maintenance 1

2 3

4 l

F: Forced Reason:

Method:

Exhibit G-Instructions l

S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-l D-Regulatory Restriction 4-Other(Explain) 0161) l E-Operator Training & License Examination i -

F-Administrative 5

f G-Operational Error (Explain)

Exhibit 1-Same Source

_(9/77)

H-Other(Explain)

G 4

,e Docket.No.

050-0331 l'

Unit Duane Arnold Enorey Center Date October 1984 MAJOR SAFETY RELATED MAINTENANCE Completed by Kenneth S.'Putnem Telephone 319-851-7456 C.1T E SYSTEM COMPONENT DESCRIPTION 0-G-84 Reactor Core isolation Cooling Motor for IP-227 Commutator cleaned.

Barometric Condenser vacuum Pump (LER 84-031) 0-84 St a nd by Filter Unit Intake Air Radiation Monitor Replaced photo-mu lt i p l i er tube.

6101B (LER 84-032) 9-C-84 Fire Protection Electric Fire Pump Adjusted pump impeller.

(Special Report 84-033)

?

l D

~

I l

)...

D:sket No. 050-0331 Unit Duane Arnold Enerny Ctr Date 10-15-84 Completed by K enneth Putnam Telephone 319-851-7456 REFUELING $NFORMATION r

1 Name of facility.

A.

Duane Arnold Energy Center 2.

Scheduled date for next ref ueling shutdow n.

A.

February, 1985 l

3.

Scheduled date for restart f ollow ing ref ueling.

+

A.

May, 1985 i

4 Will refueling or resumption of operation thereafter require a technical specification change or other license amendment f Yes.

A.

Reload license submittal.

B.

Additional MAPLHGR curves for noe fuel bundles being Introduced for Cycle 8 5.

Scheduled date(s) for submitting proposed licensing action and supporting Information.

A.

Submitted

(

B.

Submitted 6

Important licensing considerations associated with refueling, e.g.,

new or different fuel design or supplier, unrevleved design or performance analysis methods, significant changes in fuel design, new operating l

procedures.

I None I

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

6 A.

al 368 b) 576 8

The present licensed spent fuel pool storage capacity and the else of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblias.

A.

2050 9

The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.

A.

1998

p'ae ; o' 0;;kOf N3. 055-0331 Unit Duane Arnold Enerov Ctr Date 10-15-84 Completed by.Kenneth Putnam Telephone 319-851-7456 NARRATIVE $UMMARY OF OPERATING EXPERIENCE 09-01-84 At 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />, the plant was in normal operation at 534 MWe (gross). An administrative power limit goal of 70% was set for September to conserve fuel for peak winter loads.

09-03-84 At 1551 hours0.018 days <br />0.431 hours <br />0.00256 weeks <br />5.901555e-4 months <br /> the RCIC system was declared Inoperable due to the Inoperability of the barometric condenser vacuum pump (1P-227).

A 7 day LCO started.

(LER 84-031) 09-04-84 AT 0240 hours0.00278 days <br />0.0667 hours <br />3.968254e-4 weeks <br />9.132e-5 months <br /> the "B" Standby Filter Unit auto-Initiated due to a downscale failure of the i n l et/a l r radi at i on mon i tor (RE-6101 B).

(LER 84-032) 09-05-64 A fire was detected in the "A"

cooling tower breaker house at 0938 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.56909e-4 months <br />.

An Unusual Event was declared at 0959 hours0.0111 days <br />0.266 hours <br />0.00159 weeks <br />3.648995e-4 months <br /> when it was determined that the fire had burned for greater than 10 minutes.

At 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> the Unusual Event was of ficially ended.

As a result of the fire the f ans f or the "A"

cooling tower were Inoperable and there was a loss of lighting in the area of the towers.

At 2032 hours0.0235 days <br />0.564 hours <br />0.00336 weeks <br />7.73176e-4 months <br /> the RCIC system was declared operable ending the 7 day LCO on RCIC Inoperability.

09-05-84 The electric fire pump was declared operable at 1747 hours0.0202 days <br />0.485 hours <br />0.00289 weeks <br />6.647335e-4 months <br />.

($pecial Report LER 84-033) 09-16-84 At 0225 hours0.0026 days <br />0.0625 hours <br />3.720238e-4 weeks <br />8.56125e-5 months <br /> and again at 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> the "B"

Standby Filter Unit auto-Initiated (LER 84-032).

At 0430 hours0.00498 days <br />0.119 hours <br />7.109788e-4 weeks <br />1.63615e-4 months <br /> the "0" Standby Filter Unit was declared inoperable due to a high temperature switch being out of calibration.

A 7 day LCO commenced.

09-18-84 At 0214 hours0.00248 days <br />0.0594 hours <br />3.53836e-4 weeks <br />8.1427e-5 months <br /> the containment and torus pur0m Inlet velves (CV-4306 and CV-4308) failed to close within the speelflod Technical i

$pecification times during ASME testing. The valves were placed in the Isolated condition.

At 0612 hours0.00708 days <br />0.17 hours <br />0.00101 weeks <br />2.32866e-4 months <br /> the drywell to torus differet*Inl pressure dropped below l.1 psig.

This commenced a6 hour to

'ir reestablishing differential pressure prior to ente

.our LCO.

At 1810 hours0.0209 days <br />0.503 hours <br />0.00299 weeks <br />6.88705e-4 months <br /> maintenance had been cor is purge inlet valves and differential pressure was re stor than 1.1 pol.

09-19-84 At 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br /> the "u" Standby Filter Unit was declared operable ending the 7 day LCO.

09-25-64 At 0331 hours0.00383 days <br />0.0919 hours <br />5.472884e-4 weeks <br />1.259455e-4 months <br /> the Reactor Water Cleanup $ystem (RWCU) Isolated on a high differential flow signal. Operators verlfled that no leaks existed in the system and RWCU was restored to normal status at 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />.

(LER 84-036 pending)

(-

h * *6 9

09-28-84 At 1512 hours0.0175 days <br />0.42 hours <br />0.0025 weeks <br />5.75316e-4 months <br /> the west header of the #B" cooli ng tow er ruptured.

Power was stabillted at 250 MWe gross uIth no signiPicant transients occuring.

09-28-84 A scheduled shutdown for maintenance began at 2l00 hours.

09-29-84 At 0001 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> the main generator was taken off-line.

At 1413 hours0.0164 days <br />0.393 hours <br />0.00234 weeks <br />5.376465e-4 months <br /> with power at less than 15 the reactor scrammed as a result of a spurious IRM upscale trip.

(LER 84-037 pending) 09-29-84 At 1615 hours0.0187 days <br />0.449 hours <br />0.00267 weeks <br />6.145075e-4 months <br /> an unusual Event was declared when the Emergency Notification System and normal long distance phone lines were found inoperable. The Unusuji Event w as cancelled at 2022 hours0.0234 days <br />0.562 hours <br />0.00334 weeks <br />7.69371e-4 months <br /> with restoration of phone service.

09-30-84 At 0256 the Reactor Water Cleanup System isolated on a spurlous electrical signal.

Normal system condi flons were verlflod and the system returned to normal status.

(LER 84-036 pending) 09-30-84 At 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> the plant was in cold shutdown for scheduled maintenance.

+-

1 1

Iowa Electric Light and Ibwer Company October 15, 1984 DAEC 662 Director, Office of Inspection and Enforcement U. S.' Nuclear Regulatory Commission Washington, D. C.

20555 Attn:

Document Control Desk

Subject:

Duane Arnold Energy Center Docket No. 50-331 Op. License DPR-49 September,1984 Monthly Operating Report

Dear Sirs:

Please find enclosed 12 copies of the Duane Arnold Energy Center Monthly Operating Report for September, 1984. The report has been prepared in accordance with the guidelines of Regulatory Guide 1.16 and distribution has been made in accordance with DAEC Technical Specifications, Appendix A, Section 6.11.1.c and Regulatory Guide 10.1.

Very truly yours,

/

Dani I L. Mineck l

Plant Superintendent - Nuclear Duane Arnold Energy Center DLM/KSP/kp*

Enclosures File A-118d, TE-5 cc:

Director, Office of Inspection Mr. Phillip Ross and Enforcement U. S. Nuclear Regulatory Commission U. S. Nuclear Regulatory Commission 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. M. Thadani Box 508 Washingt b555 INP0 Records Center 1100 Circle 75 Parkway h\\

Suite 1500

\\

All an ta, GbuaruMr%3d Energy center. r.o. aos as s. cedarinapids, towa satic Missiass.7s1:

L 1

14