ML033570210

November 2003 Monthly Operating Report for Dresden Units 2 and 3

ML033570210
Person / Time
Site:	Dresden
Issue date:	12/15/2003
From:	Hovey R Exelon Generation Co, Exelon Nuclear
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RHLTR: #03-0081
Download: ML033570210 (7)

Text

ExelkrnSm Exelon Generation Dresden Generating Station 6500 North Dresden Road Morris, IL 60450-9765 Tel 815-942-2920 www.exelonCorP.Crn1 Nuclear December 15, 2003 RHLTR: #03-0081 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 November 2003 In accordance with Technical Specifications, Section 5.6.4, "Monthly Operating Reports," we are submitting the November 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, R. J. Hovey Site Vice President Dresden Nuclear Power Station Attachment cc:

Regional Administrator-NRC Region IlIl NRC Senior Resident Inspector - Dresden Nuclear Power Station 9--
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ATTACHMENT DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3 MONTHLY OPERATING REPORT FOR NOVEMBER 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

1.

SUMMARY

OF OPERATING EXPERIENCE FOR NOVEMBER 2003 A.

UNIT 2 MONTHLY OPERATING EXPERIENCE

SUMMARY

On November 11, 2003, at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> the Unit returned to service after being shutdown for refuel outage D2R18 since October 14, 2003.

On November 13, 2003, at 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br /> as load ramped up from outage D2RI 8 to approximately 67%, power ascension was secured due to a transformer leak. The Unit returned to power ascension on November 13, 2003 at 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />.

On November 13, 2003, at 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br /> as load ramped up from the transformer leak issue to approximately 33%, load was reduced for a transformer relay issue to approximately 23% electrical output. The Unit returned to power ascension on November 13, 2003 at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br />.

On November 14, 2003, at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />, during ramp up to full power, load was reduced from approximately 79% to 63% electrical output to perform a control rod pattern adjustment. The Unit returned to full power operation on November 16, 2003 at 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br />.

On November 23, 2003, at 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />, load was reduced to approximately 63%

electrical output to perform a control rod pattern adjustment and collect Recirculation Pump data. The Unit returned to full power operation on November 23, 2003 at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />.

With the exception of short periods for routine maintenance, surveillances and the above occurrences, Unit 2 operated at full power throughout the remainder of the reporting period.

B.

UNIT 3 MONTHLY OPERATING EXPERIENCE

SUMMARY

On November 15, 2003, at 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />, load was reduced to approximately 87%

electrical output to limit steam flow to the reactor steam dryer. With the exception of short periods for routine maintenance and surveillances, Unit 3 maintained reduced output throughout the remainder of the reporting period.

3

II.

OPERATING DATA STATISTICS A. Dresden Unit 2 Operating Data Report for November 2003 DOCKET NO.

DATE COMPLETED BY TELEPHONE 050-237 December 04, 2003 Eric Steckhan (815) 416-2357 1.

2.

OPERATING STATUS REPORTING PERIOD: November 2003 CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,957 MAXIMUM DEPENDABLE CAPACITY (MWe NET): 850 (estimated)

DESIGN ELECTRICAL RATING (MWe Net): 867 Unit Two Monthly perating Sta us This Month Year to Date Cumulative

3. Reactor Critical - Hours 522 7,372 223,770

4. Hours Generator On-Line 455 7,290 215,199

5. Unit Reserve Shutdown - Hours 0

0 4

6. Net Electrical Energy Generated - MWHe 352,793 6,102,182 144,112,335 4

II.

OPERATING DATA STATISTICS B. Dresden Unit 3 Operating Data Report for November 2003 DOCKET NO.

050-249 DATE December 04, 2003 COMPLETED BY Eric Steckhan TELEPHONE (815) 416-2357 OPERATING STATUS 1.

.2.

REPORTING PERIOD: November 2003 CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,957 MAXIMUM DEPENDABLE CAPACITY (MWe NET): 850 (estimated)

DESIGN ELECTRICAL RATING (MWe Net): 867

• Unit Three Mlonthly Operating Sta tus This Month Year to Date Cumulative

3. Reactor Critical - Hours 720 7.886 210,917

4. Hours Generator On-Line 720 7,819 202,895

5. Unit Reserve Shutdown - Hours 0

0 1

6. Net Electrical Energy Generated - MWHe 585,488 6,663,361 136,026,762 5

III. UNIT SHUTDOWNS A. Unit 2 Shutdowns for November 2003 NO DATE TYPE DURATION REASON (2) METHOD OF CORRECTIVE ACTIONS!

(1)

(HOURS)

SHUTTING DOWN COMMENTS l___________________

________ I REACTOR (3) j 3

11/01/03 S

265' C

I Planned Refuel Outage B. Unit 3 Shutdowns for November 2003 LEGEND:

(1) Type:

(2) Reason (3) Miethod F - Forced A. Equipment Failure (Explain)

I. Manual S - Scheduled B. Maintenance or Test

2. Manual Trip / Scram C. Refueling

3. Automatic Trip I Scram D. Regulatory Restriction

4. Continuation E. Operator Training & Licensing Exam S. Other (Explain)

F. Administrative G. Operational Error (Explain)

H. Other(Explain)

IV. Challenges to Safety and Relief Valves Unit 2 Unit 3 During refuel outage, a relief valve lifted during hydro test on 11/06/2003 None

' Shutdown began in October period 6