ML20151Y271

Monthly Operating Repts for Aug 1998 for Dresden Nuclear Power Station,Units 1,2 & 3.With

ML20151Y271
Person / Time
Site:	Dresden
Issue date:	08/31/1998
From:	Abrell G, Heffley J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-REGGD-01.016, RTR-REGGD-1.016 GL-97-02, GL-97-2, JMHLTR:#98-0243, JMHLTR:#98-243, NUDOCS 9809180177
Download: ML20151Y271 (11)

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• i Commonw calth lilison Company Drexicn Generating StJtiott J. ' 6MH) Nortti Dirxlen Road '

yo7,,s u n ivi Tel31S W J-2920 September 8,1998 JMHLTR: #98-0243 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Monthly Operating Data Report for August 1998 Dresden Nuclear Power Station n Commonwealth Edison Company Docket Nos.50-010,50-237, and 50-249 Enclosed is the Dresden Nuclear Power Station Monthly Operating Summary Report for August 1998.

This informatio: is supplied to your office as required by Technical Specification 6.9.A.5,

~ in accordance with the instructions set forth in Regulatory Guide 1.16. and Generic Letter 97-02.

Sincer ly, 1

a i J. M. He ey mo(

Site Vice President Dresden Station Enclosure cc: NRC Region III Office Illinois Dept. of Nuclear Safety, State ofIllinois NRC Senior Resident Inspector, Dresden Station UDI, Inc. - Washington, DC '

File / Numerical 9809100177 980631 PDR ADOCK 05000010 R PDR ,,

tnnpon 4 vt/cvU A t'nkom Company

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l MONTHLY NRC l

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SUMMARY

OF OPERATING EXPERIENCE, PER REGULATORY GUIDE 1.16 FOR 1 DRESDEN NUCLEAR POWER STATION  ;

1 1

COMMONWEALTH EDISON COMPANY l FOR AUGUST 1998 l

UNIT DOCKET LICENSE  ;

1 050-010 DPR-2 l 2 050-237 DPR-19 3 050-249 DPR-25 l

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1 l TABLE OF CONTENTS AUGUST 1998 NRC REPORT 1

1 1.0 Introduction l 1

l 3.0 Summary of Operating Experience 2.1 Unit 2 Monthly Operating Experience Summary. )

2.2 Unit 3 Monthly Operating Experience Summary. 1 3.0 Operating Data Statistics 3.1 Operating Data Report - Dresden Unit 2 3.2 Operating Data Report - Dresden Unit 3 3.3 Unit 2 Shutdowns 3.4 Unit 3 Shutdowns 4.0 Unique Reporting Requirements 4.1 Main Steam Relief and/or Safety Valve Operations - j Unit 2 and Unit 3 4.2 Technical Specification Amendments L: 8360\8301\ misc \98\98050501,GA 2

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I l 1.0 Introduction l I

Dresden Nuclear Power Station is a three reactor generating facility owned and operated by the Comed i 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 1 operating data is )

provided in this report. l l

Dresden Units 2 and 3 are General Electric Boiling l Water Reactors; each licensed at 2527 megawatts I thermal. 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 11 August 1970 and 30 October 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 Architect-Engineer for Dresden Units 2 and 3 was Sargent and Lundy of Chicago, Illinois.

Gary A. Abrell of Dresden Regulatory Assurance Staff compiled this report for AUGUST 1998, telephone number (815) 942-2920, extension 3749.

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2.0

SUMMARY

OF OPERATING EXPERIENCE FOR. August 1998 2.1 UNIT 2 MONTHLY OPERATING EXPERIENCE SUMt1ARY l l

Unit 2 operated throughout the period at full i power except for the D2F34 forced outage to I resolve intermittent grounding problems plaguing the Unit 2 generator. '

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Unit 2 was separated from the system at 0051 on l August 8 and returned to the system at 0256 on l August 9, 1998. )

l Unit 2 reached full power at 0553 on August 13, 1998.

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2.0

SUMMARY

OF OPERATING EXPERIENCE FOR August 1998 )

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2.2 UNIT 3 MONTHLY OPERATING EXPERIENCE

SUMMARY

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

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' 3 '. O OPERATING DAT7' STATISTICS 3.1 OPERATINt >ATA REPORT - DRESDEN UNIT TWO DOCKET No. 050-237 i

DATE September 3, 1998 i COMPLETED BY G. A. ABRELL TELEPHONE (815) 942-2920 I OPERATING STATUS l

1. REPORTING PERIOD: August 1998 '

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.

REPORTING PERK)D DATA PARAMETER THIS MONTH YEAR TO DATE CUMULATIVE 5 HOURS IN PERIOD 744 5,831 245,927 6 T M REACTTR CRITICAL 744 4,684 179,692 7 TM REACTOR RESERVE SIRTIDONN (Hours) O C 0 8 TM GENERATOR CN-LINE (Hours) 719 4,567 171,321 9 T M GENERATOR RESERVE SHUTDONN (Hours) 0 3 4 10 THEISAL ENERGY GENERATED (14fHt Gross) 1,714,57E 10,866,857 360,630,280 11 EIECTRICAL ENERQf GENERATED (lefEHe Gross) 548,427 3,519,367 115,253,202 12 ELECTRICAL ENERGY GENERATED (14fEHe Net) 523,733 3,356,439 109,036,614 13 REACTOR SERVICE FACTOR (%) 100.0% 80.3% 73.14 14 REACTOR AVAIIABILITY FACTOR (%) 100.01 80.3% 73.1%

15 GENERATOR SERVICE FACTOR (%) 96.6% 78.3% 69.74 16 GENERA 20R AVAIIABI LITY FACTOR (%) 96.6V 78.4% 69.74 17 CAPACITY FACTOR (Using ICD Net) (%) 91.21 74.6% 57.44 18 CAPACITY FAC'ITE (Using DER Net) (%) 88.7% 72.5% 55.84 19 FORCED OUTAGE FACTOR (%) 31 5.4V 12. 61 L: 8360\8301\ mise'48\98050501.GA b

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l 3.0 OPERATING DATA STATISTICS 3.2 OPERATING DATA REPORT - DRESDEN UNIT THREE i DOCKET No. 050-249 ,

DATE' September 3,1998 I COMPLETED BY G. A. ABRELL TELEPHONE (815) 942-2920 OPERATING STATUS 1

1. REPORTING PERIOD: AUGUST 1998

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

3. PCWER LEVEL TO WHICH RESTRICTED: No restriction

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

REPORTING PERIOD DATA PARANETER THIS MONTH YEAR TO DAT CUMULATIVE 5 HOURS IN PERIOD 744 5,831 235,247 6 TDE REACTOR CRITICAL 744 5,325 167,266 7 TIME REACTOR RESERVE SHUTDOWN (Hours) 0 0 0 8 TDE GENERATOR CN-LINE (Hours) 744 5,22E 159,652 9 TDE GENERATOR RESERVE SHUTDOWN (Hours) 0 1 1 10 THERMAL ENERGY GENERATED ()SfHt Gross) 1,861,708 12,747,829 335,952,802 11 EIJ:CHICAL ENERGY GE:NERATED 04fEHe Gross) 598,651 4,124,023 107,612,182 12 ELECTRICAL ENERGY GENERATED ()SfEHe Net) 574,563 3,959,565 102,066,482 13 - REACTOR SERVICE FACTOR (%) 100.0% 91.3% 71.14 14 REACTOR AVAIIABILITY FACTOR (%) 100.0% 91.3% 71.14 15 GENERATOR SERVICE FACTOR (%) 100.0% 89.7% 67.94 16 GENERATOR AVAIIABLILITY FACTOR (%) 100.01 89.7% 67.94 17 CAPACITY FACTOR (Using 1(:D Net) (%) 100.0% 88.01 56.24 18 CAPACITY FACTOR (Using DER Net) (%) 97.3% 85.5? 54.6%

j 19 EVRCED OUTAGE FACTOR (%) 0.04 4.91 14.14 I

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3.3- UNIT 2 SHUTDOWNS REPORT MONTH OF AUGUST 1998 NO 'DATE TYPE DURATION REAECT METHOD OF CORRECTIVE (1) (HOURS)*. (2) SHUTTING ACTIONS /

DOWN CCN!OITS REACTOR '

(3) 5 980808 1 25 A 5 See Sec. 2.1  ;

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u Year-to-date forced outage hours =' 263 Cumulative forced outage hours = 24691 TABLE KEY:

(1). (3)

F: Forced Method:

S: Scheduled 1. Manual

2. Manual Scram (2) Reason: 3. Automatic Scram

-A Equipment Failure (Explain) 4. Other (Explain)

B Maintenance or Test 5. Load Reduction C . Refueling l D Regulatory Restriction l

E Operator Training &

l' Licensing Exam F Administrative G Operational Error l H Other (Explain) l 1

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l 3.4 UNIT 3 SHUTDOWNS l

REPORT MONTH AUGUST 1998 O DATE TYPE (1) DURATION REASON (2) METHOD OF CORRECTIVE (HOURS)* SHUTTING ACTIONa/

DOWN COMMENTS REACTOR l (3) '

4-Year-to-date forced outage hours = 272 Cumulative forced outage hours = 26,212 TABLE KEY:

(1) (3)

F: Forced Method:

S: Scheduled 1. Manual I

2. Manual Scram (2) 3. Automatic Scram Reason: 4. Other (Explain)

A Equipment Failure 5. Load Reduction (Explain) l B Maintenance or Test C Refueling D Regulatory Restriction E Operator Training &

Licensing Exam F Administrative G Operational Error H Other (Explain) l L: 8%0\8301\ misc \98\98050501.GA 9

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'4.O UNIQUE REPORTING' REQUIREMENTS 4.1 MAIN STEAM RELIEF AND/OR SAFETY VALVE OPERATIONS -  ;

UNIT 2. I I

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4.2 Technical Specification Amendments

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Amendment 163 to DPR-25 for Dresden U-3 was issued on  ;

August 7, 1998. It revises Technical Specification l 4.6.E to allow a one-time extension of the 40-month i surveillance interval requirement to set pressure test or replace all main steam safety' valves (MSSVs) to a  !

maximum interval of 6-0 months as currently allowed by the American Society of' Mechanical Engineers Boiler and ,

Pressure Vessel Code. I l

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