ML20237A716

Monthly Operating Repts for July 1998 for Dresden Nuclear Power Station,Units 1,2 & 3

ML20237A716
Person / Time
Site:	Dresden
Issue date:	07/31/1998
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:#98-0220, JMHLTR:#98-220, NUDOCS 9808170047
Download: ML20237A716 (11)

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cnmnumw caia, Ldson n,mruny 1)roden Generating Mate m 654 m North Dresden ikud Morns. IL uns0 Trisis'> u 3>.:o August 7,1998 JMHLTR: #98-0220 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

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

t Sincerely, 4

J.h efl - f Si Vice Presilient Dresden Statio 1

Enclosure l

cc:

NRC Region 111 Office Illinois Dept. of Nuclear Safety, State ofIllinois NRC Senior Resident inspector, Dresden Station UDI, Inc. - Washington, DC

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SUMMARY

OF OPERATING EXPERIENCE, PER REGULATORY GUIDE 1.16 FOR DRESDEN NUCLEAR POWER STATION COMMONWEALTH EDISON COMPANY FOR JULY 1998 UNIT DOCKET LICENSE 1

050-010 DPR-2 2

050-237 DPR-19 3

050-249 DPR-25 l

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'4 TABLE OF CONTENTS JULY 1998 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 D 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 Lt 8.MO\\ 0301 \\misch 96\\ %0d O701. GA 2

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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 conf'.uence of the Kankakee and Des Plaines Rivers,

'a 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.

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

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SUMMARY

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

SUMMARY

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Unit 2 operated throughout the period at full power except for brief periods for minor maintenance and surveillance testing.

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SUMMARY

OF OPERATING EXPERIENCE FOR JULY 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 August 3, 1998 COMPLETED BY G. A. ABRELL TELEPHONE (815) 942-2920 OPERATING STATUS l

1.

REPORTING PERIOD: JULY 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 PERIOD DATA PARAMETER THIS MONTH YEAR TO DATE CUMULATIVE 5 HOURS IN PERIOD 744 5,087 245,183 6 TIE REACTOR CRITICAL 744 3,940 178,94E 7 TIE REACTOR RESERVE SHUTDOWN (Hours) 0 0

0 8 TIE GENERA'IDR ON-LINE (Hours) 744 3,848 170,60 9 TINE GENERA'IDR RESERVE Sutnv0WN (Hours) 0 3

4 10 THEBMAL ENERGY GENERATED e4 Git Gross) 1,846,409 9,152,279 358,915,702 11 ELECTRICAL ENERG1 GENERATED 04fEHe Gross) 600,70C 2,970,940 114,704,77E J

12 ELECTRICAL ENERGY GENERATED (MWEHe Net) 574,412 2,832,706 108,512,881 13 REACiuR SERVICE FACTOR (%)

10 0. 0't 77.5t 73.04 14 REACTOR AVAILABILITY' DCIVR (%)

100.0*

77.5V 73.04 15 GENERATOR st.xVICE FAC'IDR (%)

100.01 75.6i 69.6r 16 GENERATOR AVAILABILITY FACTOR (%)

100.0t 75.7e 69.6e 17 CA'PACITY FACTOR (Using MCD Net) (%)

100.04 72.11 57.34 18 CAPACITY FACTOR (Using DER Net) (%)

97.24 70.lt 55.7v 19 EURCED OUTAGE FACTOR (%)

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4 3.0 OPERATING DATA STATISTICS 3.2 OPERATING DATA REPORT - DRESDEN UNIT THREE DOCKET No.

050-249 DATE August 3,1998 COMPLETED BY G. A. ABRELL TELEPHONE (815) 942-2920 OPERATING STATUS 1.

REPORTING PERIOD: JULY 1998 2.

CURRENTLY AUTHORIZED POWER LEVEL (MWth) : 2,527 MAXIMUM DEPENDABIZ CAPACITY (MWe Net) : 773 DESIGN ELECTRICAL RATING (MWe Net): 794 1

3.

POWER LEVEL TO 4HICH RESTRICTED: No restriction 4.

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

REPORTING PERIOD DATA 3

PARANE!TER TMS MONTH YEARTO DATE CUMULATIVE HOURS IN PERIOD 744 5,087 234,503 TDE REACIOR CRI".ICAL 744 4,581 166,522 TDE REACIOR RF4ERVE SHUIDORf (Hours) 0 0

0 TDE GENERA 2T7.( CN-LINE (Hours) 744 4,484 158,908 TDE GDERA"CR RESERVE SHUTDORf (Hours) 0 1

1 THEINAL ENERGY GENERATED (Milt Gross) 1,853,888 10,886,121 334,091,094 EIECTRICAL ElERGY GNERATED $6EHe Gross) 595,609 3,525,372 107,013,531 EIECTRICAL 1!NERGY CENERAIED (MEHe Net) 571,897 3,385,002 101,491,919 REACICR SERVICE FACICR (%)

100.0Y 90.0%

71.01 REACITR AVAILABILITY FACTOR (%)

100. 0't 90.01 71.08 i

f GENERA 2tR SERVICE FACITR (%)

100.0t 88.1%

67.8%

GENERA 20R AVAIIABLILITY FAC7DR (%)

100.0Y 88.2V 67.8Y CAPACITY FACTOR (Using MCD Net) (%)

99.6%

- 86.29 56.14 I

CAPACITY FACITR (bing DER Net) (%)

96.8%

83.89 54.5i ETHZD ODTACE FACIOR (%)

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3,3 UNIT 2 SHUTDOWNS REPORT MONTH OF JULY 1998 NO DATE TYI*E DURATION REASOfl METHOD OF whhECT I VE (1)

(HOUR 3)*

(2)

CHUTTING A 10M3/

gg COMMENTS REACTOR f

(3)

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Year-to-date forced outage hours = 238 Cumulative forced outage hours = 24,666 TABLE KEY:

(1)

(3)

E:

Forced Method:

3:

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

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DURATION REASONt2)

METHOD OF CORRECTIVE (HOURS}*

SHUTTINil ACTION 3/

DOWN CtJtMENTS REACTOR (3)

Year-to-date forced outage hours = 272 Cumulative forced outage hours = 26,212 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)

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

UNIT 2.

None 4.2 Technical Specification Amendments None i

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