ML20210R608

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

ML20210R608
Person / Time
Site:	Dresden
Issue date:	07/31/1999
From:	Butterfield S, Heffley J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
JMHLTR#99-0094, NUDOCS 9908170161
Download: ML20210R608 (10)

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Gunnionwealth Ldison G,mpJny

• Drexlen Generating MJtion 69H) North Drrvien Road

, Morris.11. (d) l50 Tcl HI V9 6 2-29.80 August 10,1999 JMHLTR: #99-0094 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Dresden Nuclear Power Station Units 1,2, and 3 Facility Operating License Nos. DPR-2, DPR-19, arid DPR-25 Docket Nos.50-010. 50-237. and 50-249

Subject:

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

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

Respectfully, J. f Sit Vice Fresident resden Nucle ~ r Station Attachment cc: Regional Administrator- NRC Region ill NRC Senior Resident inspector- Dresden Nuclear Power Station j&N =

1 9908170161 990731 ~

PDR ADOCK 05000010 R PDR.

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ATTACHMENT l

DRESDEN NUCLEAR POWER STATION UNITS 1,2 AND 3 i

MONTHLY OPERATING REPORT  !

I FOR JULY,1999 1

l COMMONWEALTH EDISON COMPANY FACILITY OPERATING LICENSE NOS. DPR-2, DPR-19, AND DPR-25 NRC DOCKET NOS.50-010,50-237, AND 50-249 l

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TABLE OF CONTENTS I. Introduction II. Summary of Operating Experience A. Unit 2 Monthly Operating Experience Summary B. 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 B. Unit 3 Shutdowns l 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 g

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4 I. Introduction Dresden Nuclear Power Station is a thn:e 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 Gnmdy County, near Morris, Illinois.

Dresden Unit 1 is a General Electric Boiting 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 1 operating data is provided in this report.

Dresden Units 2 and 3 are General Electric Boiling Water Reactors; each licensed at 2527 megawatts thennal. The gross outputs of Units 2 and 3 are 832 and 834 megawatts electrical, respectively, with design net electrical output ratings of 794 MWe each. The commercial service date for Unit 2 is August 11,1970 and October 30,1971 for Unit 3.

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

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

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II.

SUMMARY

OF OPERATING EXPERIENCE FOR JULY 1999 A. UNIT 2 MONTIILY OPERATING EXPERIENCE

SUMMARY

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

B. UNIT 3 MONTIILY OPERATING EXPERIENCE

SUMMARY

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

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III. OPERATING DATA STATISTICS A. Dresden Unit 2 Operating Data Report for July 1999 DOCKET NO. 050-237 DATE August 10.1999 COMPLETED BY Sherry Butterfield TELEPHONE (815) 942-2920 OPERATING STATUS

1. REPORTING PERIOD: July 1999

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

Unit Two Monthly Operating Status This Month Year to Date Ctunulative

5. Hours in Period 744 5,087 253,943

6. Reactor Critical - Hours 744 5,087 187,708

7. Reactor Reserve Shutdown - Hours 0 0 0

8. Hours Generator On-Line 744 5,087 179,362

9. Unit Reserve Shutdown - Hours 0 0 4

10. Thermal Energy Generated - MWHt Gross 1,716,476 12,589,382 380,513,447 l

11. Electrical Energy Generated - MWEHe Gross 546,470 4,089,882 121,721.618

12. Electrical Energy Generated - MWEHe Net 521,580 3,917,555 115,230,588

13. Reactor Service Factor - Percent 100.0 % 100.0 % 73.9 %

14. Reactor Availability Factor - Percent 100.0 % 100.0 % 73 9 %

15. Generator Service Factor - Percent 100.0 % 100.0 % 70.6 %

16. Generator Availability Factor - Percent 100.0 % 100.0 % 70.6 %

17. Capacity Factor - (Using MDC Net) Percent 90.8 % 99.8 % 58.8 %

18. Capacity Factor -(Using DER Net) Percent 88.3 % 97.0 % 57.1 % I

19. Forced Outage Factor - Percent 0% 0.0% 12.1 %

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III. OPERATING DATA REPORT B. Dresden Ur.it Three Operating Data Report for July 1999 DOCKET NO. 050-249 DATE August 10,1999 COMPLETED BY Sherry Butterfield TRIPPHONE (815) 942-2920 OPERATING STATUS

1. REPORTING PERIOD: July 1999

2. CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,527 MAXIMUM DEPENDABLE CAPACITY (MWe Net): 773 DESIGN ELECTRICAL RATING (MWe Net): 794 i

3. POWER LEVEL TO WHICH RESTRICTED: No Restrictions

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

Unit Three Monthly Operating Status This Month Year to Date Cumulative

5. Hours in Period 744 5,087 243,263

6. Reactor Critical - Hours 744 4,420 174,615

7. Reactor Reserve Shutdown - Hours 0 0 0

8. Hours Generator On-Line 744 4.372 166,953

9. Unit Reserve Shutdown - Hours 0 0 1

10. Thermal Energy Generated - MWHt Gross 1,723,536 10627657 353,880,082

11. Electrical Energy Generated - MWEHe Gross 550,155 3,445,310 113,424,113

12. Electrical Energy Generated - MWEHe Net 527,904 3,309,009 107,650,517

13. Reactor Service Factor - Percent 100.0 % 86.9 % 73.4 %

14. Reactor Availability Factor - Percent 100.0 % 86.9 % 73.4 %

15. Generator Service Factor - Percent 100.0 % 85 9 % 70.0 %

16. Generator Availability Factor - Percent 100.0 % 85.9 % 70.0 %

17. Capacity Factor - (Using MDC Net) Percent 91.9 % 84.3 % 57.9 %

18. Capacity Factor - (Using DER Net) Percent 89.4 % 81.9 % 56 3 %

19. Forced Outage Factor - Percent 0% 1.6% 12.4 %

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IV. UNIT 2 SHUTDOWNS A. Unit 2 Shutdowns for July 1999 1

NO DATE' TYPE DURATION REASON C) METHOD OF CORRECTIVE ACflON5/ COMMENTS (1) (HOURS)* $1!UTTING DOWN REACTOR o>

Mno, Year-To-Date Forced Outage Hours = 0 Cumulative Forced Outage Hours = 24,691 IEEENik (I) Tvess C) Itsesem 0) Moshed F - Forwd A Equipment Feilure (Explain) 1. Manual 5 Scheduled B Ma' or Test 2. Manual Soram C Refueling 3. Automatic Scam D Reguimiory Restrine 4. Other(Explain)

E Operator Training A Ucensing Exam 5. taind Reduction P Admmmirative O Operatamal Error H Other(Explain

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V. UNIT 3 SHUTDOWNS B. Unit 3 Shutdowns for July 1999 NO. DATE TYPE DURATION REASON (2) METHOD OF CORRECTWE ACTIONS / COMMENTS (1) - (HOURS)* . SHITITINO DOWN REACTOR o)

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Year-To-Date Forced Outage Hours = 70 Cumulative Forced Outage Hours = 24,761 '

IJEENIh (1) 1rer O) Reesme D) Mosbad F - Forced A Equipment Failure (Explain)  !. Manual 8 - Scheduled B Maintenance or Test 2. Manual Scram C Refuelmg 3. Automatic Scram D Regule. tory Restriction 4. Other (Explain)

E Operssor Trainins A Ueensing Exam 5. Load Reduction F Adminstrative O Operationd Error H Other(Explain l

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VI. UNIQUE REPORTING REQUIREMENTS A. Main Steam Relief and/or Safety Valve Operations Unit 2 - None Unit 3 - None H. Amendments to Facility License or Technical Specifications Admin Control of Return to Service i Section 3.0.E., implemented 5/3/99 l

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