SVPLTR 04-0006, January 2004 Monthly Operating Report for Dresden Units 2 and 3

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January 2004 Monthly Operating Report for Dresden Units 2 and 3
ML040550424
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 02/13/2004
From: Bost D
Exelon Generation Co, Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
SVPLTR #04-0006
Download: ML040550424 (7)
v • d • e


Text

Exelon Generation Company, LLC www.exeloncorp.com Exelkn. NucleaT Dresden Nuclear Power Station 6500 North Dresden Road Morris, IL60450-9765 February 13, 2004 SVPLTR #04-0006 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 January 2004 In accordance with Technical Specifications, Section 5.6.4, "Monthly Operating Reports," we are submitting the January 2004 Monthly Operating Report for Dresden Nuclear Power Station (DNPS), Units 2 and 3.

Please note the asterisks on pages 4 and 5 for cumulative critical hours. These were adjusted to correct errors in the November and December Monthly Operating Reports for unit 2 and 3 respectively.

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

espectfully, Danny Bost Sit ice President 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 JANUARY 2004 EXELON GENERATION COMPANY, LLC

  • FACILITY OPERATING LICENSE NOS. DPR-19 AND DPR-25 NRC DOCKET NOS. 50-237 AND 50-249

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 bata 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

I.

SUMMARY

OF OPERATING EXPERIENCE FOR JANUARY - 2004 A. UNIT 2 MONTHLY OPERATING EXPERIENCE

SUMMARY

On January 9, 2004, at approximately 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />, load was reduced to:

approximately 92% electrical output to perform control rod maintenance and testing. The unit returned to full power operation at approximately 0500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br />.

On January 23, 2004, at approximately 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br />, load vas reduced to approximately 51% electrical output in the performance of a required shutdown due to component failures in the equipment supplying power to the Essential Services Bus. The shutdown was stopped and the unit returned to full power operation at approximately 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-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 eriod.

B. UNIT 3 MONTHLY OPERATING EXPERIENCE

SUMMARY

On January 24, 2004, at approximately 0100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br />, the unit experienced an automatic scram during turbine weekly surveillances as a result of an equipment failure of the master trip solenoid valve. The unit was returned on line at

  • approximately 1400 on January25 and returned to full power operation at approximately 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> on January 27.

On January 30, 2004, at approximately 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br />, the unit experienced an*

automatic scram due to problems with the main turbine lube oil system. The unit remained off line for the remainder of the month.

With the exception of short periods for routine maintenance, surveillances and the above occurrences, Unit 3 operated at full power throughout the remainder of the reporting period.

3

II.. OPERATING DATA STATISTICS A. Dresden Unit 2 Operating Data Report for January 2004 DOCKET NO. 050-237 DATE February 4, 2004 COMPLETED BY Joseph Reda TELEPHONE (815) 416-3081 OPERATING STATUS

1. REPORTING PERIOD: January 2004
2. CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,957 MAXIMUM DEPENDABLE CAPACITY (MWe NET): 850 (estimated)

DESIGN ELECTRICAL RATING (MWe Net): 867 Unit 2 Monthly 0 eratin Status ________________

This Month Year to Date Cumulative

3. Reactor Critical Hours

- 744 - 744 225,22O

4. Hours Generator On-Line 744 .744 216,652
5. Unit Reserve Shutdown Hours

- 0 0 4

6. Net Electrical Energy Generated - MWHe 645,924 - 645,924 145,359,185
  • Cumulative reactor critical hours was reduced by 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to correct for the fact the number of critical hours for November 2003 was 510 instead of 522, as reported in the November 2003 Monthly Operating Report.

4

II. OPERATING DATA STATISTICS B. Dresden Unit 3 Operating Data Report for January 2004 DOCKET NO. 050-249 DATE February 4, 2004 COMPLETED BY Joseph Reda TELEPHONE (815) 416-3081 OPERATING STATUS

1. REPORTING PERIOD: January 2004

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

DESIGN ELECTRICAL RATIN.G (MWe Net): 867 Unit 3 Monthly 0 eratin Status _________________

- 3. Reactor Critical Hours

4. Hours Generator On-Line 684 671 1

This Month Year to Date 1

684 671 1

1 Cumulative 212,012*

203,953

5. Unit Reserve Shutdown-Hours
6. Net Electrical Energy Generated MWHe

- 1 .0 570,157 j 0 570,157 j 1 136,897,418

  • Cumulative reactor critical hours was increased by 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> to correct for the fact the number of critical h6urs for December 2003 was 411 instead of 408, as reported in the December 2003 Monthly Operating Report.

S

  • -, ( S III. UNIT SHUTDOWNS A. Unit 2 Shutdowns for January 2004 NO DATE TYPE DURATION REASON (2) METHOD OF CORRECTIVE ACTIONS/

SHUTTING DOWN COMMENTS (I) (HOURS) REACTOR (3) _________________________

None B. Unit 3 Shutdowns for January 2004 NO DATE TYPE DURATION REASON (2) METHOD OF CORRECTIVE ACTIONS/

(I) (HOURS) SHUTTING DOWN COMMENTS

______ ________ ________ REACTOR (3) 1 01/24/04 F 37. A 3 Reactor scram due to equipment failures of the master trip solenoid valve during turbine weekly surveillances.

2 01/30/04 F 36 H 3 Reactor scram due to problems with the main turbine lube oil system from (January (Inadequate inadequate Operator procedural alone) Operator procedural guidance.

_______ _________ ________ guidance).

LEGEND:

(1) Type: (2 Reason . (3 Method F - Forced A. Equipment Failure (Explain) . . I. 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. ChalIenes to Safety and Relief Valves Unit 2 *None Unit 3 None 6

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