ML20215B415
| ML20215B415 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 05/31/1987 |
| From: | Eenigenburg E, Maxwell D COMMONWEALTH EDISON CO. |
| To: | NRC, NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87-359, NUDOCS 8706170319 | |
| Download: ML20215B415 (15) | |
Text
- _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . __
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- OPERATING DATA REPORT 4
DOCKET NO. 050-237 DATE June 1, 1987 COMPLETED BY D. C. htenvell TELEPHONE 815/942-2920 OPERATING STATUS NOTES j
- l. Unit Name: Dresden II
- 2. Reporting Period: May, 1987 )
3 Licensed Thermal Power (MWt): 2.527
- 4. Nameplate Rating (Gross MWe): ~ 828 5 Design Electrical Rating (Net NWe): 794 )
- 6. Maximum Dependable Capacity (Gross MWe): 812 ]
7 Maximun Dependable Capacity (Net MWe): 772 ;
- 8. If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give j Reasons: j N/A 9 Power Level to Which Restricted, If Any (Net MWe): N/A !
- 10. Reasons For Restrictions, if Any: N/A
{
l This Month Yr-to-Date Cumulative
- 11. Hours in Reporting Period 744 3.623 149.447
- 12. Number of Hours Reactor Was Critical 719.7 928.5 111.736.0 ;
13 Reactor Reserve Shutdown Hours 0 0 0 l
- 14. Hours Generator On-Line 612.6 612.6 106.360.4 15 Unit Reserve Shutdown Hours _
0 0 0 , , , , , _ , ,
- 16. Gross Thermal Energy Generated (MWH) 1,127,936 1.127.936 218. 00r gly _,,, i 17 Gross Electrical Energy Generated (MWH) 351,938 351.938 69.754, h
- 18. Net Electrical Energy Generated (MWH) 331,039 310.741 65.895 194 19 Unit Service Factor ,_
82.3 16.9 71 J
- 20. Unit Availability Factor 82.3 16.9 71.2
- 21. Unit Capacity Factor (Using MDC Net) 57.6 11.1 57.1
- 22. Unit Capacity Factor (Using DER Net) 56.0 10.8 55.5 23 Unit Forced Outage Rate 13.1 13.1 12.1 1
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
N/A 25 :f Shut Down At End Of Report Period, Estimated Date of Startup: N/A Y$50h37 Y$
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OPERATING DATA REPORT DOCKCT NO. 050-249 DATE June 1. 1987 ;
COMPLETED BY D. C. hhxwell l TELEPHONE 815/942-2920 OPERATING STATUS -
N01 F.S
- 1. Unit Name: Dresden III
- 2. Reporting Period: May, 1987 3 Licensed Thermal Power (MWt): 2.527 l
- 4. Nameplate Rating (Gross MWe): R9R l 5 Design Electrical Rating (Net MVe): 794 '
- 6. Maximum Dependable Capacity (Gross MWe): a12 7 Maximum Dependable Capacity (Nat 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 l
- 11. Hours in Reporting Period 744 3,623 139,032 I
- 12. Number of Hours Reactor Was Critical 691.4 3,124.3 102,477.8 13 Reactor Reserve Shutdown Hours 0 0 0 l
- 14. Hours Generator On-Line 676.5 2,758.0 95,008.5 I 15 Unit Reserve Shutdown Hours 0 0 0
- 16. Gross Thermal Energy Generated (MWH) 1,549,669 6,443,285 193,254,382 '
., 17 Gross Electrical Energy 9enerated (MWH) 484,019 2,056,003 62,460,512
- 18. Net Electrical Energy Generated. (MWH) 460,266 1,958,832 59,141,151 19 Unit Service Factor 90.9 76.1 68.3
- 20. Unit Availability Factor 90.9 76.1 68.3
- 21. Unit Capacity Factor (Using MDC Net) 80.0 69.9 55.0 __
- 22. Unit Capacity Factor (Using DER Net) 77.9 68.1 53.6 23 Unit Forced Outage Rate 9.1 22.9 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
, COMMONWEALTH EDISON COMPANY l
DRESDEN STATION i
l MAXIMUM DAILY LOAD MONTH OF MAY, 1987 I
l HOUR MAXIMUM DAILY LOAD j DAY ENDING KW j l
1 2400 844 000 2 2400 918,200 3 1000 1,017,800 4 0600 800,300 5 0700 807,200 6 0300 807,200 7 2300 1,184,200 8 0400 1,228,600 9 0200 1,250,900 10 '2400 1,185,600 11 2400 1,358,600 12 0200 1,376,000 13 1600 586,300
_l '> 2400 812,900 15 2400 808,200 1- 2400 1,040,900 17 2400 1,253,800 18 2400 1,346,900 19 0700 1,369,100 .
1 20 2400 1,345,100 )
21 1600 1,303,000 22 2400 1,464,700 23 2400 1,645,000 24 0100 1,524,900 25 2400 1,443,900 26 2400 1,496,000 l 27 0100 _,495,600 O 28 1400 1,481,400 4 1
29 2400 1,475,300 J
30 1400 1,481,600 31 0100 1,405,000 l
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i AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-237 I'
UNIT II DATE June 3,1987
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COMPLETED BY D. C. Maxwell l TELEPHONE 815/942-2920 t
MONTH MAY, 1987 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL .
(MWe-Net) (Ne-Net) .
1 0 17 465 2 180 18 574 3 61 19 574 4 0 20 565 5 0 21 601 6 0 ,_
22 677 7 205 23 684 8 422 _
24 711 9 516 25 586 10 448 26 675 11 474 27 691 12 559 _
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DOCKET NO. 050-249 1
UNIT III DATE June 3, 1987 )
COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920 MONTH MAY, 1987 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL
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UNIQUE REPORTING REQUIREMENTS MAIN STEAM RELIEF VALVE OPERATIONS Relief valve operations during the reporting period May, 1987 are summarized in the following table. The table includes 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 05/01/87 to 05/31/87 2-203-3A 1 919# Valves tested at 2-203-3B 1 rated pressure prior 2-203-3C 1 to normal unit start-2-203-3D 1 up and functioned 2-203-3E 1 correctly on 5/1/87 at 0145 hours0.00168 days <br />0.0403 hours <br />2.397487e-4 weeks <br />5.51725e-5 months <br />.
3 05/01/87 to 05/31/87 None j
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SUMMARY
OF OPERATING EXPERIENCE UNIT TWO MAY, 1987 05/01/87 to 05/07/87 Unit 2 entered the month off-line in the end of its 10 refueling outage with the reactor critical. On May let at 2150 hours0.0249 days <br />0.597 hours <br />0.00355 weeks <br />8.18075e-4 months <br /> the generator was synchronized to the grid, ending the refueling outage. An automa-tic reactor scram occurred on May 3rd at 0912 hours0.0106 days <br />0.253 hours <br />0.00151 weeks <br />3.47016e-4 months <br /> during testing of the feedwater level control system.
A feedwater regulating valve fully opened, resulting in a reactor water level increase to the automatic turbine and reactor feedpump trip setpoint. The reactor water level subsequently decreased to the auto-matic low level scram setpoint. The reactor was made critical on May 4th at 0913 hours0.0106 days <br />0.254 hours <br />0.00151 weeks <br />3.473965e-4 months <br /> an6 the generator was synchronized to the grid at 0508 hours0.00588 days <br />0.141 hours <br />8.399471e-4 weeks <br />1.93294e-4 months <br /> on May 7th.
05/08/87 to 05/16/87 The unit operated steadily increasing load until the turbine was manually taken off-line on May 15th at 2234 hours0.0259 days <br />0.621 hours <br />0.00369 weeks <br />8.50037e-4 months <br /> for the planned turbine overspeed test. The unit was brought on-line at 1613 hours0.0187 days <br />0.448 hours <br />0.00267 weeks <br />6.137465e-4 months <br /> of May 16th.
05/17/87 to 05/31/87 Unit load was increased after completion of an on-Site Review of the startup activities and repairs to the 2B !
condensate booster pump. Unir load was limited for the remainder of the month by main condenser vacuum result-ing from high circulating water inlet temperatures, reaching a power level of 762 MWe with a capacity factor of 56.89% and an availability of 82.33%.
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SUMMARY
OF OPERATING EXPERIENCE )
UNIT THREE MAY, 1987 05/01/87 to 05/14/87 Unit 3 entered the month on-line and operating at 686 MWe. Load was limited to this level because the
- 3 low pressure heater string was isolated due to a problem with the 3C2 low pressure heater. On May 12th at 0209 hours0.00242 days <br />0.0581 hours <br />3.455688e-4 weeks <br />7.95245e-5 months <br /> an automatic reactor scram occurred on a {
l low reactor water level signal resulting from an auto-matic trip of the reactor feedpumps on low suction j pressure. The low reactor feedpump suction pressure l was caused by an automatic trip of the 30 condensate booster overcurrent as a result of an internal short ]
)
in its motor. A'ter investigation of the problem was completed, the reactor was made critical May 14th at 1 0644 hours0.00745 days <br />0.179 hours <br />0.00106 weeks <br />2.45042e-4 months <br /> and the generator was synchronized to the grid at 2138 hours0.0247 days <br />0.594 hours <br />0.00354 weeks <br />8.13509e-4 months <br /> of the same day.
05/15/87 to 05/31/87 The unit steadily increased load to maximum core flow and operated through the remainder of the month at maximum core flow reaching a power level of 786 MWe with a capacity factor of 78.20% and an availability of 91.38%.
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bom~mhnw:alth Edison Dresden Nuclear Powsr Stition
- ' R.R. # 1 Morris. .'linois 60450 Telephoni 815/942 2920 June 3, 1987 EDE LTR: 87-359 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk l
Dear Sir:
j Enclosed, please find Dresden Station's operating data for the month of May, 1987. This information is supplied to your office per the instructions set forth in Regulatory Guide 1.16.
Sincerely, f
E. D. Eenigenh rg d Station Mana r Dresden Nuclear Power Station EDE:DCM:hjb Enclosure l
cc: Region III, Regulatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of IL U.S. NRC, Document Management Branch ,
Nuclear Licensing Administrator l Nuc. Sta. Div. Vice Pres.
Manager, Tech. Serv. Nuc. Sta.
Tech. Staff A.E. (2)
On-Site NRC Inspector Q.A. Dept.
Sta. Nuc. Eng, Dept.
Comptroller's Office i PIP Coordinator INPO Records Center File /NRC Op. Data File / Numerical fs (
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