ML20214C722
| ML20214C722 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 04/30/1987 |
| From: | Eenigenburg E, Maxwell D COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87-297, NUDOCS 8705210072 | |
| Download: ML20214C722 (26) | |
Text
.
OPERATING DATA' REPORT DOCKET NO. 050-237'
~
DATE May 1, 1987 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920 OPERATING STATUS NOTES 1.
Unit Name:
Draction II 2.
Reporting Period:
April, 1987 3
Licensed Thermal Power (MWt):
2 527 4.
Nameplate Rating (Gross MWe):
828 5.
Design Electrical Rating (Net MWe):
794 6.
Maximum Dependable Capacity (Gross MWe):
812 7
Maximum Dependable capact ty (Net NWe):
772 8.
If Changes occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons:
N/A 9
Power Level to Which Restricted, if Any (Net MWe): N/A 10.
Reasons For Restrictions, if Any: N/A This Month Yr-to-Date Cumulative 11.
Hours in Reporting Period 719 2.879 148.703 12.
Number of Hours Reactor Was Critical 208.8 208.8 111.n16 1 13 Reactor Reserve Shutdown Hours 0
0 o
14.
Hours Generator On-Line 0
0 105.746.9 15 Unit Reserve Shutdown Hours 0
0 216.872.082 16.
Gross Thermal Energy Generated (MWH) 0 0
69.402.665 17 Gross Electrical Energy Generated (MWH)
-7,786
-20,298 65.564.355 18.
Net Electrical Energy Generated- (MWH) 0 0
71.1 19 Unit Service Factor 0
0 71.1 20.
Unit Availability Factor 0
0 57.1 21.
Unit Capacity Factor (Using MDC Net) 0 0
55.5 22.
Unit Capacity Factor (Using DER Net) 0 0
12.I 23 Unit Forced Outage Rate 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
N/A 25 If Shut Down At End Of Report Period, Estimated Date of Startup:
May 1, 1987 8705210072 87043o DR ADOCK 05000237 PDR M 94 L
Y/
OPERATING DATA REPORT
^
DOCKET NO. 050-249 DATE May 1, 1987 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920 OPERATING STATUS NOTES 1.
Unit Name: Dresden III 2.
Reporting Period:
April. 1987 3
Licensed Thermal Power (MWt):
2.527 4.
Nameplate Rating (Gross MWe):
R99 5.
Design Electrical Rating (Net MWe): 794 6.
Maximum Dependable Capacity (Gross MWe): ain 7
Maximum Dependable Capacity (Net MWe):
773 8.
If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons:
N/A 9
Power Level to Which Restricted, if Any (Net MWe): N/A 10.
Reasons For Restrictions, if Any: N/A This Month Yr-to-Date Cumulative 11.
Hours in Reporting Period 719 2,879 138,288 12.
Number of Hours Reactor Was Critical 655.3 2,432.9 101,786.4 13 Reactor Reserve Shutdown Hours 0
0 0
14.
Hours Generator On-Line 432.7 2,081.5 94,331.9 15 Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 956,897 4,893,616 191,704,713 17 Gross Electrical Energy Generated (MWH) 301,786 1.571.984 61.976.493 18.
Net Electrical Energy Generated. (MWH) 283,922 1,498,566 58,680,885 19 Unit Service Factor 60.2 69.7 68.2 20.
Unit Availability Factor 60.2 69.7 68.2 21.
Unit Capacity Factor (Using MDC Net) 51.1 64.9 54.9 22.
Unit Capacity Factor (Using DER Net) 49.7 63.2 53.4 23 Unit Forced Outage Rate 39.8 26.5 12.8 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
N/A 25 If Shut Down At End Of Report Period, Estimated Date of Startup:
N/A
l COMMONWEALTH EDISON COMPANY i
DRESDEN STATION MAXIMUM DAILY LOAD 1
MONTH OF APRIL, 1987 i
?
HOUR MAXIMUM DAILY LOAD DAY ENDING KW l'
'1900 807,300 2
1100 805,500 3
0800 807,100 4
4 0100 693,200
}
5 2400 763,600 6
1600 808,700 7
1000 809,100 t
8 0400 807,600 4
i 9
1500 805,700 i
10 0000 0
i 11 0000 0
i 12 0000 0
13 0000 0
14 0000 0
4
- l 15 0000 0
l 16 0000 0
I 17 0000 0
18 0000 0
1 19 0000 0
I 20 0000 0
21 2400 133,800 22 2400 564,800 i
23 1900 684,100 j
24 2200-686,200 i
25 0700 688,300 f
26 1300 686,900 27 2100 687,300 28 0100 684,900 29 0400 683,900 i
j 30 1100 684,200 i
.m_
DOCKET NO. 050-237 UNIT NAME II UNIT SHUTDOWNS AND POWER REDUCTIONS DATE May 1, 1987-COMPLETED BY D. C. - Maxwell TELEPHONE (815) 942-2920 REPORT MONTH APRIL, 1987 METHOD OF LICENSEE CAUSE.& CORRECTIVE.
l NO.
DATE' TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)
DOWN REACTOR 3 REPORT F CODE 0 CODES PREVENT RECURRENCE i
9 86-11-29 S
719:00 C
2 Turbine off-line manually to 10th refueling outage, planned Rx scram when mode switch-moved from "Run" to " Shutdown".
I 1
h 1
1 2
3 4
F Forced Reason:
Method:
Exhibit G-Instructions for 8: Scheduled A-Equipment Failure (Explain) 1-Manual
. Preparation'of Data B-Maintenance or Test 2-Manual Scram.
Entry Sheets for. Licensee j
C-Refueling 3-Automatic. Scram Event Report (
.) File D-Regulatory Restriction 4-Other-(Explain)
- E-Operator Training & License Examination i
F-Administrative G-Operational Error
(
H-Other (Explain)
DOCKET NO. 50-249 UNIT NAME III
~
UNIT SHUTDOWNS AND POWER REDUCTIONS DATE May 1, 1987-
~'
COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 t
l REPORT MONTH APRIL, 1987 1
HETHOD OF LICENSEE CAUSE & CORRECTIVE NO.
DATE' TYPEI DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)
DOWN REACTOR 3 REPORT F CODE 4 CODES PREVENT RECURRENCE 4'
.87-04-09 F
286:21 A
2 Low condenser vacuum and (286.4) condensate demin. high inlet temperature and increasing.
4 I
1 r
i a
1 2
3 Ft Forced Reason:
4 i
hthod:
Exhibit G-Instructions for S:
Scheduled A-Equipment Failure (Explain) 1-knual Preparation of Data B-h intenance or Test 2-knual-Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Eveni Report (
) File D-Regulatory Restriction 4-Other (Explain)
E-Operator Training & License Examination i
F-Administrative 8
G-Operational Error i
H-Other (Explain) i
-2
=....
AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-237 UNIT ~ II i
DATE '. May 1,.1987 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920-i MONTH APRIL, 1987 DAY AVERAGE DAILY POWER LEVEL DAY
. AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net)~
l 0
17.
o
.l 5
2 0
18 0
1 3
0 19 0
1 l-4 0
20 0
1 5
0 21 0
6 0
22 0
0 7
23 0
8 0
24 0
4 0
9 25 0'
0 10 26 0
I 11 0
27
.0 l
12 0
28 0
13 0
29 0
14 0
30 o
I5 0
l 16 0
4 l
I
AVERAGE DAILY UNIT POWER LEVE.
DOCKET NO. 050-249 UNIT III DATE May 1. 1987 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920 MONTH-APRIL, 1987 DAY AVERAGE DAILY POWER LEVEL.
DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 775 17 0
2 739 18 0
3 772 19 0
4 449 20 0
5 664 21 0
6 764 22 384 635 7
774 23 8
780 24 642
~
9 745 25 654 to 0
26 663' 1I 0
27 651 12 0
28.
655 0
13 29 649 14 0
30 652 0
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UNIQUE REPORTING REQUIREMENTS MAIN STEAM RELIEF VALVE OPERATIONS Relief valve operations during the reporting period March, 1987 are summarized in the following table. The table igeludes information as to which relief valve was actuated, how it was actuated, and the circum-stances resulting in its actuation.
Valves Description Unit Reporting Period Actuated Actuations Conditions of Events 2'
04/01/87 to 04/30/87 2-203-3D 1
300#
Tested valve at low pressure prior to normal unit startup.
3 04/01/87 to 04/30/87 None
.e 1
SUMMARY
OF OPERATING EXPERIENCEL UNIT.TWO.
APRIL,21987 l
04/01/87.to 04/30/87 Unit 2's refueling outage continued.. Major work l
. included:
- Primary containment - local leak rate tests
- Normal pump (s) and valve (s) maintenance l'
- Reactor _ criticality checks were~ performed in l
preparation for unit startups as follows:
I l
Time Time Date Critical Suberitical 04/22/87.
0125 0137 04/22/87 0328 0339 04/22/87 0417 0431 04/22/87 0530 0541 04/22/87 0600 0618 J
04/22/87 0739 0752 04/22/87 0833 Remained critical for.the rest of the month I
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SUMMARY
OF OPERATING EXPERIENCE UNIT THREE APRIL, 1987 04/01/87 to 04/30/87 Unit 3 entered the month operating at 812 MWe-and operated until 2335 hours0.027 days <br />0.649 hours <br />0.00386 weeks <br />8.884675e-4 months <br /> of April 9th, when the unit was manually scrammed because of low main condenser vacuum and condensate demineralizer inlet temperature high and increasing. After determina-tions of causes and corrective action were completed.
l the reactor was made critical on April 12th at 1520 hours0.0176 days <br />0.422 hours <br />0.00251 weeks <br />5.7836e-4 months <br />. Condenser in-leakage investigation continued for several days through April 20th. The "C" low pres-sure turbine bearing cor.e waste water and oil drain i
piping to the turbine building equipment sump, which is routed through the main condenser, was determined to have broken. This drain piping, which is normally at turbine building ambient pressure, was discovered to be under vacuum. This indicated that it had broken inside the main condenser resulting in air in-leakage at the bearing collection and sump ends of the drain piping. After repairs to the turbine building oil l
drain line were completed, the turbine was brought on-line April 21st at 2156 hours0.025 days <br />0.599 hours <br />0.00356 weeks <br />8.20358e-4 months <br />. The unit rematned on-line the remainder of the month, reaching a power level of 686 MWe with an availability of 60.17% and a capa-city factor of 50.45%. Unit load was maintained at this level due to a problem with the.3C2 low pressure heater which required the number 2 heater string to be isolated.
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Commonwealth Edison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 May 12, 1987 EDE LTR: 87-297 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk
Dear Sir:
Enclosed, please find Dresden Station's operating data for the month of April, 1987. This information is supplied to your office per the instructions set forth in Regulatory Guide 1.16.
Sincerely, xW E. D. EenigeIb rg Station Manag r Dresden Nuclear Power Station EDE:DCM:hjb Enclosure cc:
Region III, Regulatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of IL U.S. NRC, Document Management Branch Nuclear Licensing Administrator Nuc. Sta. Div. Vice. Pres.
Manager, Tech. Serv. Nuc. Sta.
Tech Staff A.E. (2)
On-Site NRC Inspector Sta. Nuc. Eng. Dept.
Comptroller's office PIP Coordinator INP0 Records Center File /NRC Op. Data File / Numerical g