ML19323J004
| ML19323J004 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 06/02/1980 |
| From: | Cieszkiewicz S COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML19323J001 | List: |
| References | |
| NUDOCS 8006170461 | |
| Download: ML19323J004 (8) | |
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' AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-249 UtilT Dresden III DATE June 2, 19 80 COMPLETED BY d. A. Cieszkiewicz TELEPHONE (815) 942-2920, ext. 489 MONTH ' HMAY. 19 80 OAY.
AVERAGE DAILY POWER' LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net);
(MWe-Ne t) 1 0
17 52 2
0 18 511 3
32 19 718 4
217 20 762 5
223 21 764 6
426 22 763 7
620 23 771 8
613 24 764 9
658 25 336 10 690 26 525 Il[
691 27 658 12 742 28 6 74 13 752 29 568 14-773 30 689-
. 15 728 31 701 16' 115 a
t 1
1 1
OPERATING DATA REPORT DOCKET NO. 050-249 DATE June 2, 1980 COMPLETED BY S. Cieszkiewicz 5
TELEPHONE (815) 942-2920, ext. 489 OPERATING STATUS NOTES 1.
Unit Name: Dresden III 2.
Repcrting Period: May, 1980 3
Licensed Thermal Power (MWt): 2.527 4.
Nameplate Rating (Gross MWe):
828 5
Design Electrical Rating-(Net itWe): 794 6.
Maximum Dependable Capacity (Gross MWe): 812 7.
Maximum Dependable Capacity (Net MWe): 773 8.
If Changes Occur in Capacity Ratings (stems 3 Through 7) Since Last Report, Give Reasons:
NA 9
' Power Level to Which Restricted, if Any (Net MWe): NA 10.
Reasons For Restrictions, if Any:
NA This Month Yr-to-Date Cumulative.
11.
Hours in Reporting Period 744 3,647 77,688 12.
Number of Hours-Reactor Was Critical 691.23 1.476.23 57.241.55 13 Reactor Reserve Shutdown Hours 0
0 0
14.
Hours Generator On-Line 631.92 1.410.58 54.735.12
~
i 15 Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 1,306,266 2,633,992 104,905,659 l
17 Gross Electrical Energy Generated (MWH) 415.519 840.204 34.269.878 18.
Net Electrical Energy Generated (tiWH) 394,682 784,617.6 32,477.908.56 19 Unit Service Factor 85 39 70 20.
Unit Availability Factor 35 39 70 21.
Unit Capacity Factor (Using MDC Net) 69 28 54
- 32. _ Unit Capacity Factor (Using DER Net) 67 27 53 23 Unit Forced Outage Rate 8.2 5.3 16.3 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
NA
' 25
'If Shut Down At End Of Report Period, Estimated Date of Startup: NA
V' Utst.r;L i fler. 050-249 UNIT SilVTD0VHS AND P09ER REDUCTI0llS.
Ulli T tlNIE Dresden III DATE June 2, 1980 COMPLETED BY S. A. Cieszkiewicz TELEPii0flE (815) 942-2 20 REPORT HONTil MAY, 1980 q
% 68 E
en a
2E 8
m.5 %
Licensee Pe E"o Cause & Corrective
~~e No.
Date E
%o E
.8 0,2 Event U3 8.3 Action to h6 E
h[
Report #
N" h"
Prevent Recurrence O
2 800203 S
55.0 C
Refueling outage
'3 800503 F
6.6 H
Turbine trip - 111 #6 bearing vibration (Ex remained critical) n 4
- 800503, F
- 1. 3 H
Turbine trip - 3B Moisture Separator Hi Ili
\\
(Rx remained critical) zy l
5 '.
800505 F
' 9.5 G
3 i
Rx scram - Rx low level (instrument rack-
.,E, -
jarred)
'800515, F
9.6 A
EHC oil leak (Rx remained critical) 6 N
7 800516 F
5.2 A
EHC oil, leak (Rx remained critical) 8 8005d F
15.6 A
- 2 turbine control valve stuck open (Rx
\\
remained critical)'
\\
9
,800525 F
9.3 H
3 Turbine tripped on Moisture Separator "C"
Hi,Hi level - Rr scrammed on turbine stop valve closure l
2 Ft Forced Reason:
G-Operational Error 4-other (Explain) 51 Scheduled A-Equipment Failure (Explain) '
H-Other (Explain)
B-Itaintenance of Test is Exhibit G-Instructions.for C-Refueling 3 Hethod:
Preparation of Data
/
D-Rogulatory Restrletion 1 -Itanua l Entry Sheets fr'" Licensee t-operator. Training s License Examint n
2-Itanudi Scram Event Report t
) File (NUREG-j F-Admlhistrative
)
3-Aut'omatic Scram 0161)
(
i
DRESDEN UNIT 3 SAFETY RELATED ftAINTEllANCE - MAY, 1980 ltALFUNCTION NATURE OF' LER OR OUTAGE CORRECTIVr-ACTION
. EQUlPMENT MAINTENANCE fluttBER CAUSE RESULT Torus Painting Preventive WR #4215 Outage #3-2 NA NA Painted torus.
Main Steam Iso-Preventive WR #1795 Outage #3-2 NA NA Adjusted limit switches. '
Intion Valves Control Rod Preventive WR #5863 Outage #3-2 NA NA Replaced solenoid valves.
Drives NA NA Replaced bad valves.
Control Rod Preventive WR #5594 Outage #3-2 Driva Speed Control Valves NA NA Replaced capacitors 6 Rod Block Moni-Preventive WR #5779 Outage #3-3 checked voltage.
tor Channel #8 Drywell Person-Preventive WR #1675 0'utage #3-2 NA NA Greased & oiled bearings
& chains.
nel Doors Jet Pump #13' Preventive WR #4587 Outage #3-2 NA NA Removed pump & made re-LER #80-4/03L-0 pairs to hold down beam.
Reinstalled with modified gate.
Adjusted aligning screw & welded all parts.
Control Rod Preventive WR #5688 Outage #3-2 NA NA Replaced 121 & 122 valve.
Drive Flange on Corrective WR #3600 Outage #3-2 Bad Gasket Leakage Replaced gasket.
Clean-Up Line Drywell Equip-Preventive WR #1662 Outage #3-2 NA NA Closed hatch.
ment Hatch 1Cican-Up Preventive WR #5766 Outage #3-2 NA NA Installed snubber brackets.
System
DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - MAY, 1980 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT HAINTENANCE NUMBER CAUSE RESULT CORRECTIVE /tTION Mech nical Preventive WR #5650 Outage #3-2 NA NA Replaced snubber.
Snubber LER #80-14/03L-0 3"B" Core Spray Corrective WR #6231 Outage #3-2 Seats Leskage Lapped seats.
Systen Relief LER #80-20/03L-0 Valva Control Rod Preventive WR #5343 Outage #3-2 NA NA Replaced control rod drive.
Driva G-8.(26-31; Refueling tbno-Preventive WR #5658 Outage #3-2 NA NA Replaced solenoid, rail Fuel Crapple Preventive WR #5767 Outage #3-2 NA NA
' Replaced spring.
PSA 10 Mechanical Preventive WR #5240 outage #3-2 NA NA Replaced snubber.
Snubber Feedwater Check Corrective WR #5027 Outage #3-2 Bad Valve Leakage Repaired valve.
Valve NA 200 L.P.R.M.
Preventive WR #3360 Outage #3-2 NA NA Replaced L.P.R.M.
L.P.R.M.'s 24 &
Preventive WR #6394 Outage #3-2 NA NA Corrected cable tags -
25 B & C found tags on wrong cable.
Reactor Water Preventive WR #5819 Outage #3-2 NA NA Repaired clean-up line.
Clean-Up Line 1201-8" Main Steam Iso-Preventive WR #6584 Outage #3-5 NA NA Sealed in relay 112A & B.
lation Valves Flow Coaverter Preventive WR #5890 Outage #3-5 NA NA Replaced power supply.
"B" Power Supply
DRESDEN UNIT 3 SAFETY RELATED HAINTENANCE - MAY, 1980 NATURE OF LER OR OUTAGE HALFUNCTION EQUlPHENT HAlNTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION T.I.P. System Preventive WR #4724 Outage #3-5 NA NA Replaced tubing.
"D" Electro-Preventive WR #6483 Outage #3-4 NA NA Adjusted electromatic matic Relief operator.
Valva "C" Electro-Preventive MR #6484 Outage #3-4 NA NA u tic Relief Adjusted electromatic operator.
Valve "E" Electro-Preventive WR.#6482 Outage #3-4 NA NA Adjusted electromatic matic Relief Valve operator.
Electromatic Preventive WR #4054 Outage #3-4 NA NA Repaired, cleaned &
Relief Valves lubricated as necessary.
Target Rock Corrective WR #6140 Outage #3-4 Bad Solenoid Valve Leakage Replaced solenoid.
Valve Electromatic Preventive WR #4515 Outage #3-4 NA NA Checked voltage.
Relief Valves 3"B" Electro-Preventive WR #6374 Outage #3-4 NA NA Tested switches -
matic Relief operated properly.
Valve "E" T.I.P. Ball Preventive WR #6264 Outage #3-4 NA NA Replaced micro-switch.
Valve Refueling Preventive WR #5864 Outage #3-5 NA NA Reraoved limit switch arms Grapple
& replaced limit switch arms.
4.KV Breakers Preventive WR #1197 Outage #3-4 NA NA Performed inspection.
i
SUMMARY
OF OPERATING EXPERIENCE UNIT THREE MAY, 1980 5-1 to 5-3 Unit Three began the reporting period
..st down for a refueling outage.
5-3 to 5-5 The Unit was placed on the system at 0707, but a Hi #6 bearing vibration re-sulted in a turbine trip at 0742. The Unit returned to service at 1418 but tripped at 1806 due to a 3 "B" moisture separator tank Hi Hi level.
The Unit was again placed on line at 1923 on May 3 and continued operating until it scrammed on a spurious reactor low level signal on May 5 at 1033, due to an inad-vertent jarring of an instrument rack by a contractor.
5-5 to 5-15 The Unit was back on line at 2000 and con-tinued op; rating until taken off line on May 15 at 2322 to repair on EHC oil leak.
5-16 to 5-17 The Unit was placed on the system at 0900 on May 16 but taken off line again to re-pair an EHC oil leak at 1900 and returned to service on May 17 at 0013.
s
?-
. 5-17 to 5-25 The Unit was taken of f system at 0430 be-cause of a stuck open control valve on the turbine. The Unit was returned to service at 2003 on May 17 and remained on line until the turbine tripped on 3 "C" moisture separator Hi Hi level and subse-quent scram on turbine stop valve closure at 0906 on May 25.
5-25 to 5-33 The Unit was returned to service at 1825 and remained on line for the remainder of the month at an avercge power level of 592 MWe, with a capacity factor of 67% for the entire month.