ML20195D286

Monthly Operating Repts for Oct 1998 for Dresden Nuclear Power Station.With 981110 Ltr

ML20195D286
Person / Time
Site:	Dresden
Issue date:	10/31/1998
From:	Butterfield S, 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:#98-0278, JMHLTR:#98-278, NUDOCS 9811170334
Download: ML20195D286 (11)

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o Commonweahh r.dison Company a Dresden Generating Station 65m) North Dresden Road Morris, IL 60450 Tel 815 942-2920 -

November 10,1998 JMHLTR: #98-0278 U. S. Nuclear Regulatory Commission ATTN:- Document Control Desk Washington, DC 20555

Subject:

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

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.

Sincerely, J.

' e Vice Pre dent Dresden Nuc rPo r Station 6

Enclosure y h cc: NRC Region III Office Illinois Dept. of Nuclear Safety, State ofIllinois NRC Senior Resident Inspector, Dresden Nuclear Power Station UDI, Inc. - Washington, DC File / Numerical 9811170334 901031 rv gDR ADOCK 05000010' PDR ;

t-A Unicom Company

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l MONTHLY NRC  !

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SUMMARY

OF OPERATING EXPERIENCE, i

PER REGULATORY GUIDE 1.16 FOR 1

DRESDEN' NUCLEAR POWER STATION l

COMMONWEALTH EDISON COMPANY I FOR OCTOBER 1998 .

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l UNIT DOCKET LICENSE 1 050-010 DPR-2 2 050-237 DPR-19 l l

3 050-249 DPR-25  ;

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4 TABLE OF CONTENTS l

OCTOBER 1998 NRC REPORT: 1 1

1.0 ' Introduction 2.0 oSummary of Operating Experience )

2.1 Unit 2 Monthly Operating Experience Summary.  !

2.2 -Unit 3 Monthly Operating Experience Summary. l

- 3.0 Operating Data Statistics 3 .' 1 Operating Data Report - Dresden Unit 2 3.2 . Operating Data Report - Dresden Unit 3 l

3. 3: Unit 2 Shutdowns I 3.4 Unit 3 Shutdowns 4.0 - ~ Unique Reporting' Requirements l l

4 .1- Main. Steam Relief and/or Safety Valve Operations - '

. Unit 2 and Unit 3 4.2 Technical Specification-Amendments J

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, i 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 20v megawatts electrical (MWe). The unit is being decommissioned with all nuclear fuel removed from the reactor vessel. Therefore, no Unit 1 operating data is I provided in this report.

Dresden Units 2 and 3 are General Elec' ric 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 i net electrical output ratings of 794 MWe each. The ,

commercial service date for Unit 2 is 11 August 1970 l 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 Chica.go, Illinois.

Sherry Butterfield of Dresden Regulatory Assurance Staff compiled this report for October 1998, telephone number (815) 942-2920, extension 2959.

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l 2.0

SUMMARY

OF OPERATING EXPERIENCE FOR OCTOBER 1998 2.1 UNIT 2 MONTHLY OPERATING EXPERIENCE

SUMMARY

Unit 2 operated throughout the period at full  !

power except for short periods for surveillance and maintenance.

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2.0

SUMMARY

OF OPERATING EXPERIENCE FOR OCTOBER 1998 2.2 UNIT 3 MONTHLY OPERATING EXPERIENCE

SUMMARY

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

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3.0 OPERATING DATA STATISTICS 3.1 OPERATING DATA REPORT - DRESDEN UNIT TWO DOCKET No. 050-237 DATE November 9, 1998 COMPLETED BY Sherry Butterfield TELEPHONE (815) 942-2920 OPERATING STATUS

1. REPORTING PERIOD: October 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.

IEPORTINGPERCOMTA fMRMETER THS MONTH YEARTO MTE CUWLt.ATME 5 ELES IN HRED 745 7,29( 247,392 6 TDE NJCKR CRITICAL 745 6,149 181,15/

7 TDE BEAcitR RE!ERVE SHMDON Otxrs) 0 0 0 8 TDE GMRR2tR OPLDE Okars) 745 0, 005 172,759 9 TDE GNRA2tR BE.9RVE SUKON Otxts) O 3 4 10 'na5bhL DERGY GNERpdID 96Nt Gkoss) 1,8S9,33/ 14,523,590 364,287,01F 11 susamImL asser amusenD Desme atuss) 602,979 4,706,90s 116,4 40,73h 12 EECIRIChL DER 2r WERpdED 06EHe Nut) 576,78C 4,492,205 110,172,38U 13 wJCitR !ERVEE FJCitR (%) 100.0t 84.34 73.24 14REAC2tR JFAHABILnY FJCitR (%) 100.04 84.34 73.21 15 GMRA2tR !ERVICE DCitR (%) 100.0V. 82.Jv 69.8k 16 GNRA2tR JUAHJBL.ILT1Y DCitR (%) 100.04 8 2. 34 69.81 17 ChpCnY DCitR (Using E Net) (%) 100.31 79.89 57.74 18 ChWCITY DCICR (Using IMR Net) (%) 9L bl 77.51 56.14 19 FIH2D CUDG; DC1tR (%) 0V 4.24 12.5V 6

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3.0 OPERATING DATA STATISTICS 3.2 OPERATING DATA REPORT - DRESDEN UNIT THREE DOCKET No. 050-249 DATE November 9,1998. l COMPLETED BY- S. Butterfield TELEPHONE (815) 942-2920  :

1 OPERATING STATUS

1. REPORTING PERIOD: October 1998

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 I

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

REPORTING PERIOD DATA l PARAhETER THS MONm YEARTO DATE Cun4JLATNE 5 HOIRS IN PERIG) 745 7,296 236,712 6 TDE NUCER CRrrICAL 745 6,790 168,731

[ 7 TIME NUCItR RESERVE SHUIDONR (Hours) 0 0 0 8 TDE Gl3ERAltR W-LINE (Hours) 745 6,693 161,117 9 TDE Gi3ENGtR RESERUE SHlUDOBM (Hours) 0 1 1 10 ' anne &L EbEDGE GRERA2ED O6Wt Gross) 1,845,688 16,395,003 339,559,976 11 zumRIChL EMRW GMRATED OGEHm Gross) 592,926 5,298,153 108,786,312

! 12 EUIC1RICAL ENE3GY GREBA3ED 06ElHe Nort) 569,464 5,087,183 103,194,100 13 HUCitR SERVICE 3RCITR (%) 100.01 93.1% 71.31 14 REACitR AVAIIABILITY HCitR (%) 100.04 93.11 71.31 15 GHIRAltR SERVICE DCIIR (%) 100.04 91.71 68.14 16 GDEBAltR AVAIIABLILITY FACItR (%) 100.01 91.71 68.14 17 QUNCITY ERCitR (Using MI) Net) (%) 99.0% 90.3% 56.5%

18 CAHCITY HCIIR (Using IEiR Net) (%) 96.3V 87.8% 54 .91 19 nucED ainRGi; FACitR (%) 0.0+ 3 . 94 14.0Y l

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3.3 UNIT 2 SHUTDOWNS REPORT MONTH OF OCTOBER 1998 NO DATE TYI'E DURATION REASON METHOD OF CokkECTIVE (1) (HOURS)* (2) T.ING ' '

REACTOR (3) t Year-to-date forced outage hours = 263 Cumulative forced outage hours = 24691 TABLE KEY:

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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 D Regulatory Restriction E Operator Training &

Licensing Exam F Administrative G Operational Error H Other (Explain; 8

3.4 UNIT 3 SHUTDOWNS REPORT MONTH OCTOBER 1998 NO DATE TYPE (1) DURATION REASON (2) METHOD OF CORRECTIVE (HOURS)* GHUTTING ACTIONS /

MMN Cff4MENTS REACTok (3)

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

(li (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 cr Test C Refueling D' Regulatory Restriction E Operator Training &

Licensing Exam F Administrative G Operational Error H Other (Explain) i 9

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

UNIT 2 - NONE - -

t UNIT 3 - NONE l

j .4.2 Technical Specification Amendments i Amendment 169 to DPR-19 and Amendmenc 164 to DPR-25 for Dresden U2/3 was-issued on October 8, 1998. The amendments will change several Technical Specification (TS) values to reflect design values. These TS values affect:

(1) 125/250 volts direct current (Vdc) electrolyte temperature (2) control rod' drive accumulator pressure (3) standby liquid control solution temperature L (4) ultimate heat. sink minimum water level ,

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