ML20198P532

Monthly Operating Repts for Dec 1997 for Dresden Nuclear Power Station

ML20198P532
Person / Time
Site:	Dresden
Issue date:	12/31/1997
From:	Abrell G, Heffley J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-97-02, GL-97-2, JMHLTR:#98-0003, JMHLTR:#98-3, NUDOCS 9801220146
Download: ML20198P532 (11)

Text

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l Commonweahh idiw>n Company

(. * - Dredn Generating Statk>rt

, 65C3 Nona Drculen Road .

Morris, 11.60450 -

Tel HI 5942-2920 January 13,1998 JMHLTR: #98-0003 U. S. Nuclear Regulatory Commission ATTN: Document ControlDesk -

Waaington,DC 20555

Subject:

Monthly Operating Data Report for Deceml>er 1997 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 December 1997.

- 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 1.10. and Generic Letter 97-02.

Sincerely, Q-J. 1. He

' c Vice Presi nt Dresden Station Enclosure ec: NRC RegionIII Office Illinois Dept. of Nuclear Safety, State ofIllinois NRC Senior Resident Inspector, Dresden Station UDI, Inc. - Washingtor., DC

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MONTHLY NRC StA44ARY OF OPEltATING EXPERIENCE, PER REGUIATORY GUIDE 1.16 POR DRESDEN NUCLEAR POWER STATION Cote 40NWEALTH EDISON COMPANY FOR DECEMBER 1997 UNIT DOCKET LICENSE 1 050-010 DPR-2 2 050-237 DPR-19 3 050-249 DPR-25 1

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TABLE OF CONTENTS DECEMBER 1997 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 Sulamary.

3.0 Operating Data Statistics 3.1 Operating Deta 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 Steara Relief and/or Safety Valve Operations -

Unit 2 and Unit 3 9

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9 1.0 Introduction Dresden Nuclear'Po,er 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 lwith 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 thermal. The gross outputs of Units 2 and 3 are 832 and 8341 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.

This report for DECEMBER 1997, was_ compiled by Gary A.

Abrell ofLDresden Regulatory. Assurance Staff, telephone ,

number (815) 942-2920, extension 3749.

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2.0 SUte4ARY OF OPERATING EXPERIENCE FOR DECEMBER '1997 2.1 UNIT 2 MONTHLY OPERATING EXPERIENCE

SUMMARY

Unit 2 began the period near 90% power with load increasing. On December 3, 1997, load was reduced ,

to near 75% for work on Condensate demineralizers.

Following Feedwater Regulating Valve 2A testing the unit ramped to full power on December 11, 1997 and remained at that level except for short periods for maintenance and surveillance testing.

The unit scrammed at 1141 on December 23, 1997 when a spurious half scram was received from the APRMs while conducting instrument surveillance with an existing half scram.

Following minor maintenance activity, the unit was started up at 1300 on December 26, 1997, and ,

was placed on system at 1355 December 27, 1997.

The unit reached full power on December 30, 1997.

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2.0 StM4ARY OF OPERATING EXPERIENCE .70R DECEMBER 1997,-

2.2 UNIT'3 MONTHLY OPERATING EXPERIENCE

SUMMARY

' Unit 3. began the period near full power and operated _at that level throughout-the period except for brief load reductions for maintenance and surveillance testing.

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4 3.0 OPERATING DATA STATISTICS 3.1 OPERATING DATA REPORT - DRESDEN UNIT TWO DOCKET No. 050-237 DATE January 7, 3938

-COMPLETED BY G. A. ABRELL TELEPHONE (815) 942-2920 OPERATING STATUS

1. REPORTING PERIOD: DECEMBER 1997

2. CURRENTLY AUTHORIZED POWER LEVEL (MWth): 2,527 MAhIMUM DEPENDABLE CAPACITY (MWe NET) : 'i72 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.

l REPORTING PERIOD DATA l PARAMETER THIS MONTH YEAR TO DATE CUMULATIVE 5 -nouns IN PERIOD 744 8,760 240,096 6 TDs REMTOR CRITICAL 665 't , 8 4 6 175,000 7 TIME reactor m SERVE SHUTDOWN (Hours) 0 0 0 8 TI)E GENERATOR ON-LINE (Hours) 647 7,739 166,75 9 Tas GENtr.ATOR Rt. SERVE SHUTDOWN (Hours) 0 0 1 10 TurJe&L THERGY GENERATED (MWHt Gross) ),452.564 18,059,$22 349,763,423 11 EIacTRICAL Eusmer amusanan (seeEHe Gross) 474.800 5,835,899 111,733,835 12 EIACTRICAL ENEDGY GENEPATED (MNEHe Net) 4h3,925 5,570,446 105,680,175 13 mEAcTom SERVIS FACTOR (%) 87.0% 89.6% 72.9%

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14 REACTom AVAILABILIn FACTOR (4) 89.4% 89.6% 72.9%

15 GENERATOR SERVICE FACTok (%) 87.0% 88.3% 69.5%

16 MNERATOR AVAILABLILITY FACTOR (4) 87.0% 88.3% 69.5%

17 CAPACITY FACTOR (Using MCD Net) (4) 79.0% 82.5% ~'57.0%

18 CAPACITY FACTOR (Using DER Het) (4) 76.8% 80.2% 55.4%

19 foncao ouTAaK FActon (%) 13% 11.7% i 12.8%

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3.0 OPERATING DATA STATISTICS i

I 3.2 OPERATING DATA BEPORT - DRESDEN UNIT THREE DOCKET No. 050-249 DATE January 7, 1998 CCMPLETED BY G. A. ABRELL TELEPHONE (815) 942-2920 OPERATING STATUS

1. REPORTING PERIOD: DECEMBER 1997

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

3. POWER LEVEL TO WHICH RESTRICTED: No restriction

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

REPORTING PERIOD DATA j PARAMETER l THIS MONTH ' YEAR TO DATE CUMULATIVE i HOUft

• IN FERIOD 744 8,760 229,416 TDS REACTOR CRITICAL ,

744 6084.1 161,941 TDS REACTOR RESERVE SHUTDOtti (How?s' O O O

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TDS GENERATOR OH-LIh3 (Houzo) 744 5,900 154,424 0 0 0

_TIls GENERATOR RESERY3 SNUTDODGI (Ho7s)

THl!JD4kL ENERGY GENERATED (WMHt Gross) 1,829,957 12,992,496 323,204,973 ELECTRICAL ENERGY SENERATED (MNBEe Gross) 599,196 4,215,018 103,488,159 j ELECTRICAL ENRMY GENERATED (leEHe Net) 576,538 4,024,416 98,106,917 REACTOR SRkVICE FACTOR (t) 100.0% 69.5% 70.6%

REACTOR AVAILABILITY FACTOR Lt) 100.0% 69.5% 70.6% l 4

GENEAATOR SERVICE FACTOR (4) 100.Ot 67.4% 67.3% I GENERATOR AVAILABLILITY FACTOR (t) 100.0% 67.4% 67.3% l CAPACITY FACTOR (Using 3CD Net) (t) 100.4% 59.5% 55.4% i CAPACITY FACTOR (Usag DER Net) (t) 97.6% 57.9% 53.9% l FORCBD OUTAGE FACTOR (t) 0.0% 12.8% 14.4%

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3.3 UNIT 2 SHUTDOWNS REPORT MONTH OF DECEMBER 1997 NO DATE TYPE DURATION REASON METHOD CORRECTIVE (1) (HOURS)* (2) OF ACTIONS /

SHUTTING COMMENTS DOWN REACTOR (3) 7 971223 F 97 A 3 LER 97-019

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Year-to-date forced outage hours = 1022 Cumulative forced outage hours = 24,42S TABLE KEY:

(1) (3)

F: Forced- Methoo:

S: Scheduled 1. Manual

2. Manual Scram '

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

A Equipment Failure (Explain) 5. Load Reduct' ion B Maintenance or Test C _ Refueling D Regulatory Restriction E Operator Training &

Licensing' Exam

.F Administrative G- Operational Error H Other (Explain) 8 Lt\t360'd301\ MISC \99\90010901.GA

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4 3.4 t! iT 3 SHUTDOWNS REPORT MONTH DECEMBER 1997 NO LATE TYtt{t) ouPATION PLASON(2) METHOD OF CORE 71VE (HOURS)* 8HVTTING ACTIONS /

DOWN CQ9G.NTW Pam. oR (3) t Year-to-date forced outage hours = 864 Cumulative forced outage hours = 25,940 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) 9 Lt\8360\8501\ MISC \98\98010901.CA

I 4.0 UNIQUE REPOPTING REQUIREMENTS 4.1 MAIN STEAM RELIEF AND/OR SAFETY VALVE OPERATIONS - UNIT 2 ANo unzT s None 5

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