ML20209E129

Monthly Operating Repts for June 1999 for Dresden Nuclear Power Station,Units 1,2 & 3.With

ML20209E129
Person / Time
Site:	Dresden
Issue date:	06/30/1999
From:	Butterfield S, Heffley J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
JMHLTR:#99-0079, JMHLTR:#99-79, NUDOCS 9907140157
Download: ML20209E129 (10)

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JMHLTR: #996079 U.S. Nucleu aquiatory Commission Attention: Document Control Desk Washington, DC 20555 Dresden Nuclaar Power Station Unit?. e, and 3 Facility Operating License Nos. DPR-2, DPR-19, and DPR-25 Docket Nos.50-010. 50-237. and 50-249

Subject:

Monthly Operating Data Report for June 1999 in accordance with Technical Specification 6.9.A, we are submitting the June 1999 Monthly Report for Dresden Nuclear Power Station, Units 1,2, and 3.

Should you nave any questions concerning this letter, please contact Mr. D.F. Ambler, Regulatory Assurance Manager, at (815) 942-2920 extension 3800.

Respectfully, J. M. Heffley Site Vice President Dresden Nuclear Power Station Attachment j

cc:

Regional Administrator-NRC Region 111 NRC Senior Resident inspector-Dresden Nuclear Power Stat;on UDI, Inc. - Washington, DC 1

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ATTACHMENT DRESDEN NUCLEAR POWER STATION UNITS 1,2 AND 3 MONTHLY OPERATING REPORT FOR JULY,1999 COMNIONWEALTH EDISON COMPANY FACILITY OPERATING LICENSE NOS. DPR-2, DPR-19, AND DPR-25 NRC DOCKET NOS.50-010,50-237, AND 50-249 i

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TABLE OF CONTENTS 1

I.

Introduction II.

Summary of Operating Experience A.

Unit 2 Monthly Operating Experience Summary J

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Unit 3 Monthly Operating Experience Summary III.

Operating Data Statistics A.

Operating Data Report - Dresden Unit 2 B.

Operating Data Report - Dresden Unit 3 IV.

Unit Shutdowns A.

Unit 2 Shutdowns

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B.

Unit 3 Shutdowns V.

Unique Reporting Requirements A.

Main Steam Relief and/or Safety Valve Operations - Unit 2 and Unit 3 B.

Amendments to Facility License or Technical Specifications t

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L Introduction Dresden Nuclear Power Station is a three reactor generating facility owned and operated by the Comed Company of Chicago, Illinois. Dresden Station is located at

- the confluence of the Kankakee and Des Plaines Rivers, in Grundy County, near Morris, Illinois.

Dresden Unit 1 is a General Electric Boiling Water Reactor with a design net electrical output rating of 200 megawatts electrical (MWe). The unit is being decommissioned with all nuclear fuel removed from the reactor vessel. Therefore, no Unit I operating data is prcvided in this report.

Dresden Units 2 and 3 are General Electric Boiling Water Reactors; each licensed at 2527 megawatts thermal. The gross outputs of Units 2 and 3 are 832 and 834 megawatts electrical, respectively, with design net electrical output ratings of 794 l

' MWe each. The commercial service date for Unit 2 is August 11,1970 and October 30,1971 for Unit 3.

i Waste heat is rejected to a man-made cooling lake using the Kankakee River for make up and the Illinois River for blowdown.

The Architect-Engineer for Dresden Units 2 and 3 was Sargent and Lundy of Chicago, Illinois.

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II.

SUMMARY

OF OPERATING EXPERIENCE FOR MAY 1999 A.

UNIT 2 MONTIILY OPERATING EXPERIENCE

SUMMARY

Unit 2 operated throughout the period at full power except for short periods for maintenance and surveillances.

B.

UNIT 3 MONTIILY OPERATING EXPERIENCE

SUMMARY

Unit 3 operated throughout the period at full power except for short periods for maintenance and surveillances.

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III.

OPERATING DATA STATISTICS A. Dresden Unit 2 Operating Data Report for July 1999 l

DOCKET No.

050-237 DATE July 6,1999 COMPLdTED BY She. j Butterfield TELEPHONE (813) 942-2920 OPERATING STATUS 1.

REPORTING PERIOD: June 1999 4

2.

CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,527 MAXIMUM DEPENDABLE CAPACITY (MWe NET): 772 l

DESIGN ELECTRICAL RATING (MWe Net): 794 3.

POWER LEVEL TO WHICH RESTRICTED (MWe Net): No restrictions 4.

REASONS FOR RESTRICTIONS (IF ANY): See Section 2.1 of this repon.

Unit Two Monthly Operating Status This Month Year to Date Cumulative

5. Hours in Period 720 4,343 253,199

6. Reactor Critical - Hours 720 4,343 186,964

7. Reactor Reserve Shutdown - Hours 0

0 0

8. Hours Generator On-Line 720 4,343 178,618

9. Unit R? serve Shutdown - Hours 0

0 4

10. Thermal Energy Generated - MWHt Gross 1,801,232 10,872,906 378,796,971

11. Electrical Energy Generated - MWEHe Gross 578,467 3,543,412 121,175,148

12. Electrical Energy Generated - MWEHe Net 554,100 3,395,975 114,709,008

13. Reactor Service Factor - Percent 100.0 %

100.0 %

73.8 %

14. Reactor Availability Factor - Percent 100.0 %

100.0 %

73.8 %

15. Generator Service Factor - Percent 100.0 %

100.0 %

70.5 %

16. Generator Availability Factor - Percent 100.0 %

100.0 %

70.5 %

17. Capacity Factor - (Using MDC Net) Percent 99.7 %

101.3 %

58.7 %

18. Capacity Factor - (Usinc DER Net) Percent 96 9 %.

98.5 %

57.1 %

19. Forced Outage Factor - Percent 0%

0.0%

12.1 %

III.

OPERATING DATA REPORT B. Dresden Unit Three Operating Data Report for June 1999 DOCKET No.

050-249 DATE July 6,1999 COMPLETED BY Sherry Butterfield TELEPHONE (815) 942-2920 OPERATING STATUS

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1.

REPORTING PERIOD: June 1999 2.

CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,527 l

MAXIMUM DEPENDABLE CAPACITY (MWe Net): 773 DESIGN ELECTRICAL RATING (MWe Net): 794 3.

POWER LEVEL TO WHICH RESTRICTED: No restriction 4.

REASONS FOR RESTRICTIONS (IF ANY): See Section 2.2 of this report.

Unit Three Monthly Operating Status 1

This Month Year to Date Cumulative

5. Hours in Period 720 4,343 242,519

6. Reactor Critical - Hours 720 3,676 173,871

7. Reactor Reserve Shutdown - Hours 0

0 0

8. Hours Generator On-Line 720 3,628 166,209

9. Unit Reserve Shutdown - Hours 0

0 1

10. Thermal Energy Generated - MWHt Gross 1,806,223 8904121 352,156,546

11. Electrical Energy Generated - MWEHe Gross 582,620 2,895,155 112,873,958

12. Electrical Energy Generated - MWEHe Net 560,638 2,781,105 107,122,613

13. Reactor Service Factor - Percent 100.0 %

84.6 %

73.4 %

14. Reactor Availability Factor - Percent 100.0 %

84.6 %

73 4 %

15. Generr. tor Service Factor - Percent 100,0 %

83.5 %

70.0 %

16. Generator Availability Factor-Percent 100.0 %

83.5 %

70.0 %

17. Capacity Factor-(Using MDC Net) Percent 100.9%

82.9 %

57.9 %

18. Capacity Factor - (Using DER Net) Percent 98.1 %

80.7 %

56.3 %

19. Forced Outage Factor - Percent 0%

1.9%

12.4 %

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IV.

UNIT SHUTDOWNS A. Unit 2 Shutdowns for June 1999 NO DATE TYPE DURATION REASON (2)

METHOD OF CORRECTIVE ACTIONS / COMMENTS (1)

(HOURS)*

SHUTTINO DOWN REACTOR (3)

None -

Year-to-date forced outage hours = 0 Cumulative forced outage hours = 24691 IK.IND:

(I) Typer (2) ItAGM n O) Mstbad F - Forced A Equipment Failure (Explum) 1 Manual 3 - Schcduled B Maintenance or Test

2. Manual Scram C Refurimg 3.

Automatic Scram D Regulatory Restriction

4. Other (Explain)

E Opc stor Training & Licensing Exam

5. load Reduction P Administrative O Operational Error o

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V.

UNIT 3 SHUTIX)WNS B.. Unit 3 Shutdowns for June 1999 NO DATE-TYPE DURATION REASON (2)

METHOD OF CORRECTIVE ACTIONS / COMMENTS (1)

(HOURS)*

SHUTTING DOWN REACTOR (3)

None Year-to-date forced outage hours = 0 Cumulative forced outage hours = 24691 IEEENIh (1) Trees c) k.amm on Motimd F - Forced A Equipment Failure (Explain)

1. Manual S - Scheduled B Maintenance or Test

2. Manual Serum C Refuelmg 3.

Automate Serum D Regulatory Restrinkm

4. Other (Explain)

E Opernhir Training & Licensing Exam

5. lead Reduction F Administrative G Operathmal Error u

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VI.

UNIQUE REPORTING REQUIREMENTS A. Main Steam Relief and/or Safety Valve Operations Unit 2 - None Unit 3 - None B. Amendments to Facility License or Technical Specifications On June 3,1999, Dresden Nuclear Power Station received Amendment Number 168 to the Unit 3 Technical Specifications. This Amendment allows Dresden Unit 3 to exclude from the Technical Specifications the Safety Valve Function of the Target Rock safety relief valve.

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