ML033290355

October 2003 Monthly Operating Report for Dresden, Units 2 & 3

ML033290355
Person / Time
Site:	Dresden
Issue date:	11/14/2003
From:	Hovey R Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RHLTR: #03-0075
Download: ML033290355 (7)

Text

ExekIrn .

Exelon Generation Dresden Generating Station www.exeloncorp.com Nuclear 6500 North Dresden Road Morris. IL60450-9765 Tel 815-942-2920 November 14, 2003 RHLTR: #03-0075 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Dresden Nuclear Power Station, Units 2 and 3 Facility Operating License Nos. DPR-19 and DPR-25 Docket Nos. 50-237 and 50-249

Subject:

Monthly Operating Report for October 2003 In accordance with Technical Specifications, Section 5.6.4, "Monthly Operating Reports," we are submitting the October 2003 Monthly Operating Report for Dresden Nuclear Power Station (DNPS), Units 2 and 3.

Should you have any questions concerning this letter, please contact Mr. Jeff Hansen, Regulatory Assurance Manager, at (815) 416 - 2800.

Respectfully, IA!

R. J. Hovey Site Vice Preside t Dresden Nuclear Power Station Attachment cc: Regional Administrator - NRC Region IlIl NRC Senior Resident Inspector - Dresden Nuclear Power Station

ATTACHMENT DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 MONTHLY OPERATING REPORT FOR OCTOBER 2003 EXELON GENERATION COMPANY, LLC FACILITY OPERATING LICENSE NOS. DPR-19 AND DPR-25 NRC DOCKET'NOS. 50-237 AND 50-249 I

TABLE OF CONTENTS I. Summary of Operating Experience A. Unit 2 Monthly Operating Experience Summary B. Unit 3 Monthly Operating Experience Summary II. Operating Data Statistics A. Operating Data Report - Dresden Unit 2 B. Operating Data Report - Dresden Unit 3 III Unit Shutdowns A. Unit 2 Shutdowns B. Unit 3 Shutdowns IV. Challenges to Safety and Relief Valves 2

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SUMMARY

OF OPERATING EXPERIENCE FOR OCTOBER 2003 A. UNIT 2 MONTHLY OPERATING EXPERIENCE

SUMMARY

On September 30, 2003, at approximately 2013 hours0.0233 days <br />0.559 hours <br />0.00333 weeks <br />7.659465e-4 months <br /> the unit scrammed from a loss of one of the two operating reactor feed pumps. The unit responded as expected to the scram and did not return to service until October 2, 2003.

On October 2, 2003, at approximately 1845 hours0.0214 days <br />0.513 hours <br />0.00305 weeks <br />7.020225e-4 months <br /> the unit output breaker was closed and returned to reduced power while the 2C reactor feed pump and the planned maintenance on the 2B reactor feed pump was completed. At the completion of the planned maintenance, the unit shutdown for refuel outage D2R18 on October 14, 2003.

B. UNIT 3 MONTHLY OPERATING EXPERIENCE

SUMMARY

Unit 3 operated at full power throughout the reporting period.

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II. OPERATING DATA STATISTICS A. Dresden Unit 2 Operating Data Report for October 2003 DOCKET NO. 050-237 DATE November 07, 2003 COMPLETED BY Eric Steckhan TELEPHONE (815) 416-2357 OPERATING STATUS I. REPORTING PERIOD: October 2003

2. CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,957 MAXIMUM DEPENDABLE CAPACITY (MWe NET): 850 (estimated)

DESIGN ELECTRICAL RATING (MWe Net): 867 Unit Two Monthly Operating Status This Mlonth Year to Date Cumulative

3. Reactor Critical - Hours 302 6,850 223,248

4. Hours Generator On-Line 287 6,835 214,744

5. Unit Reserve Shutdown - Hours 0 0 4

6. Net Electrical Energy Generated - MWHe 189,623 5,749,389 143,759,542 4

II. OPERATING DATA STATISTICS B. Dresden Unit 3 Operating Data Report for October 2003 DOCKET NO. 050-249 DATE November 07, 2003 COMPLETED BY Eric Steckhan TELEPHONE (815) 416-2357 OPERATING STATUS

1. REPORTING PERIOD: October 2003

2. CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,957 MAXIMUM DEPENDABLE CAPACITY (MWe NET): 850 (estimated)

DESIGN ELECTRICAL RATING (MWe Net): 867 Unit Three Monthly Operatin! Status This Month Year to Date Cumulative

3. Reactor Critical - Hours 745' 7,166 210,197

4. Hours Generator On-Line 745' 7,099 202,175

5. Unit Reserve Shutdown - Hours 0 0 1

6. Net Electrical Energy Generated - MWHe 651,843 6,077,873 1 135,441,274 .

' One hour added to account for time change to Central Standard time 5

111. UNIT SHUTDOWNS A. Unit 2 Shutdowns for October 2003 NO DATE TYPE DURATION REASON (2) METHOD OF CORRECTIVE ACTIONS/

(1) (HOURS) SHUTTING DOWN COMMENTS REACTOR (3) _

I 10/01/03 F 30 A 3 B phase cable of reactor feed pump motor shunted to shielding 2 l10114/03 S 428' 1 C I Planned Refuel Outage B. Unit 3 Shutdowns for October 2003 l NO DATE TYPE DURATION REASON (2) METHOD OF CORRECTIVE ACTIONS/

II (I) (HOURS) SHUTTING DOWN COMMENTS l N~ne -________ ______ - _________ . - ________-REACTOR (3)

LEGEND:

(1) Type: (2) Reason (3) Method F - Forced A. Equipment Failure (Explain) 1. Manual S - Scheduled B. Maintenance or Test 2. Manual Trip I Scram C. Refueling 3. Automatic Trip I Scram D. Regulatory Restriction 4. Continuation E. Operator Training & Licensing Exam 5. Other (Explain)

F. Administrative G. Operational Error (Explain)

II. Other (Explain)

IV. Challenges to Safety and Relief Valves Unit 2 None Unit 3 None

' One hour added to account for time change to Central Standard time 6