ML20205N749

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

ML20205N749
Person / Time
Site:	Dresden
Issue date:	03/31/1999
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:#99-0045, JMHLTR:#99-45, NUDOCS 9904190123
Download: ML20205N749 (11)

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% ,rm,11. (no i SO Teisis9i2-m2o April 09,1999 JMHLTR: #99-0045 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, and DPR-25 Docket Nos.50-010. 50-237. and 50-249

Subject:

Monthly Operating Data Report for March 1999 Enclosed is the Dresden Nuclear Power Station Monthly Operating Summary Report for March 1999.

This information 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.

Respectfully, J. . Hef Si Vice Presid resden Nucle Pow Station Enclosure cc: Regional Administrator- NRC Region lli NRC Senior Resident inspector - Dresden Nuclear Power Station UDI, Inc. - Washington, DC .I qU l

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9904190123 990331

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MONTHLY NRC SUtedARY OF OPERATING EXPERIENCE, PER REGUIATORY GUIDE 1.16 FOR DRESDEN NUCLEAR POWER STATION COMMONWEALTH EDISON COMPANY FOR MARCH 1999 UNIT DOCKET LICENSE 1 050-010 DPR-2 l

2 050-237 DPR-19 i

3 050-249 DPR-25 l

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i l TABLE OF CONTENTS MARCH 1999 NRC REPORT 1.0 Introduction 2.0 Summary of Operating Experience 2.1 Unit 2 Monthly Operating Experience Summary.

2.2 Unit 3 Monthly Operating Experience Summary. '

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 -

Unit 2 and Unit 3 4.2 Technical Specification Amendments i

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1.0 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 frra 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 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 Abrell of Dresden Regulatory Assurance Staff compiled this report for March 1999, telephone number (815) 942-2920, extension 3749.

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2.0

SUMMARY

OF OPERATING EXPERIENCE FOR MARCH 1999 '

2.1 UNIT 2 MONTHLY OPERATING EXPERIENCE SUKHARY j Unit 2 began the period at full power. At 2330 on March 13, 1999, started load drop for single loop j operation to replace Reactor Recirculating Pump  !

Motor Generator (MG) Set brushes. At 0000 on I March 14, 1999, began containment de-inerting for drywell entry. Completed load reduction at 0504 on March 14, 1999. Secured 2B Reactor Recirculating Pump at 0613 on March 14, 1999 and began single loop operation. Restarted the 2B Reactor Recirculating MG set at 0837 on March 14, and secured 2A Reactor Recirculating MG set at 0920. Restarted 2A Reactor Recirculating MG set at 1102. Began containment inerting at 1325 on March 14, 1999. Commenced load increase at 1450 on March 14, 1999. Containment inerting completed at 2126. At 0230 on March 15, 1999 reached full.

power.

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2.0

SUMMARY

OF OPERATING EXPERIENCE FOR MARCH 1999 2.2 UNIT 3 MONTHLY OPERATING EXPERIENCE SUMHARY Unit 3 began the period in the power ascension and start-up testing phase following refueling outage D3R15. Full power was reached at 2200 on March 2, 1999.

On March 21, 1999 a drywell entry was made to determine the source of elevated airborne activity in the containment. A leak was found on the instrument line associated with a flow element on the 3B Reactor Recirculation Pump. At 1115 on March 21, a reactor shutdown commenced. At 1309 the turbine was taken off system, and the reactor was manually scrammed at 1324 to complete the shutdown. Following replacement of portions of the instrument line, a reactor startup began at 1750 on March 23, 1999. Criticality was achieved at 2056 and the unit was placed on system at 1225 that day.

The unit operated at full power for the remainder of the period except for short periods for maintenance and surveillance testing. ,

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3.0 OPERATING DATA STATISTICS 3.1 OPERATING DATA REPORT - DRESDEN UNIT TWO DOCKET No. 050-237 DATE April 4, 1999 COMPLETED BY Gary Abrell TELFPHONE (815) 942-2920 OPEBATING STATUS

1. REPORTING PERIOD: March 1999

2. CURRENTLY P.UTHORIZED 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.

MPORDftiPERCDMTA PARetitst THS4YEARTOMTE C1M1ATNE IcmS IN PIBICD 744, 2,160 251,Olf TDE IWCIUR CRITICAL 744 2,160 184,781

'YDE IWCITR PESERVE SEUIDC5N (Hcurs) (j 0 0 TDE GNEAltR CN-LDE (Hours) 744 2,160 176,430 TDE GNEAltR ME SEUIDON4 Oturs) 0 0 4

'DERAL EN!BCiY GH!Nm!D Mutt Geome) 1,833,245 5,393,054 373,317,119 EIJ!CRICAL INEW GHHSD $6EHe (3coss) OG2,252i 1,776,191 119,407,927 EIJ!CIRICAL ]!N!R3Y G!N!NG3!D MEHe Net) 576,554: 1,704,890 113,017,923 IUCitR SERVI 3 FRC2tR (%) 100.0i 100.09 73.6>

IUCitR KVAIIABILITY FAC1tR (%) 100.0i 100.0; 73.6-WN!Rh2tR !ERVI2 DCITR (%) 100.09 100.0; 70.3-GHmhltR AVAIIAN3T. TTY DCICR (%) 100.0i 100.09 70.3:

CANCITY DCitR (Usirq !{D Net) (%) 100.41 102.2* 58.3; CANCITY FACIIR (Usuq IE!R Net) (%) 97.65 99.4; 56.74 ECEO!D CUDE DCICR (%) 08 0. 0'- 12.34 6

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3.0 OPERATING DATA STATISTICS 3.2 OPERATING DATA REPORT - DRESDEN UNIT THREE DOCKET No. 050-249 DATE April 4, 1999 COMPLETED BY G. Abrell TELEPHONE (815) 942-2920 OPERATING STATUS

1. REPORTING PERIOD: March 1999

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

l REPORTING PERIOD DATA PARAMETER 1NIS MONTH YEAR.TO DATE CUMULATWE 5 HOURS IN PERIOD 744 2,160 240,336

! 6 TIME REACTOR CRITICAL 689 1,493 171.688 7 TIME REACTOR RESERVE SHUTDOWN (Hours) 0 0 0 8 TIME GENERATTR ON-LINE (Hours) 67.4 l 1.445 164.026 9 TIME GENERAITR RESERVE SHUIDOWN (Hours) 0 0 1 10 THERtGL ENERGY GENERATED 04fHt Gross) 1631412 34537'5 5 346,706,180 11 ELECTRICAL ENERGY GENERATED OGEHe Gross) 534,(5 1,129,872 111,108.675 12 EIEC7RICAL ENERGY GENERATED QefEHe Net) 513,i80 1 082.715 105.424,223 13 REACTOR SERVICE FAC70R (%) 92.5% 69.1% 73.4% j 14 REACTOR AVAIIABILITY FACTOR (%) 92.5% 69.1% 73.4%

15 GENERATOR SERVICE FACITE (B) 90.6% 66.9 % 70.0%

16 GENERATUR AVAIIABLILITY FACTCR (%) 90.6% 66.9% 70.0%

17 CAPACITY TACTOR (Using MCD Net) (%) 89.4% 64.9% 57.9%

18 CAPACITY FAC7OR (Using DER Net) (%) 86.'9% 63.1% 56.3 %

19 ITECED OUTAGE FAC1DR (%) l 9% 4.6% __ lj .g 7

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3.3 UNIT 2 SHUTDOWNS REPORT MONTH OF MARCH 1999 NO DATE TYI'E DURATION REASON METHOD OF CUkkECTIVE (1) (HOURSl* (2) SHUTTING AWIONS/

pcg.y COMMENTS KEACTOR (3) l Year-to-date forced outage hours = 0 Cumulative forced outage hours = 24691 TABLE KEY:

(1) (3) l F: Forced Method:

S: Scheduled 1. Manual

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

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

Licensing Exam F Administrative G Operational Error H Other (Explain) i a

3.4 UNIT 3 SHUTDOWNS REPORT MONTH MARCH 1999 No DATE TYPE (1) Di! RATION REASON (2) METHOD OF CORRE('TIVE

( Hullh5 )

• SHUTTING ACTIONS /

DOWN CfA44ENTS REACTOR (3) 7 990321 F 70 A 57 i FR 3-99-003 i

Year-to-date forced outage hours = 70 j Cumulative forced outage hours = 24,761 TABLE KEY:

(1) (3)

F: Forced Method:

S: Scheduled 1. Manual

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

A Equipment Failure 5. Load Reduction (Explain)  !

B Maintenance or Test C Refueling D Regulatory Restriction E Operator Training &

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

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. < l 4.0 UNIQUE REPORTING REQUIREMENTS 4.1 MAIN STEAM RELIEF AND/OR SAFETY VALVE OPERATIONS -

UNIT 2 - NONE UNIT 3 -'NONE 4.2 Technical Specification Amendments i

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