ML20083K357
| ML20083K357 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/31/1984 |
| From: | Schroeder B, Scott D COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| DJS-LTR:-84-341, NUDOCS 8404160143 | |
| Download: ML20083K357 (21) | |
Text
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' OPERATING DATA REPORT /
L
/
DOCKET NO. 050-237
^
DATE April 2, 1984
~
COMPLETED By B. A. Schroeder h
TELEPHONE (815) 942-2920 I
OPERATING STATUS NOTES
- i
1.
Unit Name:
Dresden II gjh 2.
Reporting Period:
March, 1984 h
3 Licensed Thermal Power (MWt):
2,527 4.
Nameplate Rating (Gross MWe):
828 Q
5.
Design Electrical Rating (Net NWe): 794 W
6.
Maximum Dependable Capacity (Gross MWe):
812 j
7.
Maximum Dependable Capacity (Net MWe):
772 8.
If Changes Occur in Capacity Ratings (Items 3 Through 7) Since Last Report, Give i
Reasons:
~
N/A i
9.
Power Level to Which Restricted, if Any (Net MWe):
N/A 10.
Reasons For Restrictions, if Any:
N/A I
This Month Yr-to-Date Cumu.l at ive.
~
11.
Hours in Reporting Period 744 2184 121.704
. 12.
Number of Hours Reactor Was Critical 744 2184 94.408.5 t
-13.
Reactor Reserve Shutdown Hours 0-0 0
- 14. Hours. Generator On-Line 744-2162 93.068.1 i
15 Unit Reserve Shutdown Hours 0
0 o
- 16. ' -Gross Thermal Energy Generated (MWH) 1,755,915 5.069.897' 181.764.533 i
17 Gross Electrical Energy Generated (MWH) 577,334 1.658.227' 58.160.426 18.'
Net. Electrical Energy Generated.(HWH) 548.778 1,580,226 54.968.490 19 Unit Service Factor 100.0
-98.99267 76.47086 98.99267 76.47086
~
20.' -Unit Availability Factor 93.72367 58.50482 100.0
- 21. - Unit Capact ty Factor (Using MDC Net)
'95.54467
- 22.- Unit Capacity Factor (Using DER Net) 92.89733 01 t?A7a 56.88378
- 234.. Unit Forced Outage Rate.
0 0.9975 11.44548-.g
- 24. : Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):-
_f
- May 19, ' 1984 for Snubber Inspection.
-25.
If. Shut.Down At End.0f Report. Period, Estimated Date of Startup:
N/A i,
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.0PERATING DATA REPORT DOCKET NO.
050-249 l
DATE April 2, l'984 t
COMPLETED BY B. A. Schrceder TELEPHONE (gs g 947_793
}
OPtRATING STATUS
(
NOTES k
1.
Un t Name:
Dresden III 2.
Reporting Period:
March, 1984 j
U 3
Licensed Thermal Power (MWt):
2,527 4.
Nameplate Rating (Gross MWe):
828 4
. 4 5
Design Electrical Rating (Net MWe): 794 t
6.
Maximum Dependable Capacity (Gross MWe): 812 i
7 Maximum Dependable Capacity (Net MWe):
773 j
8.
If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons:
g
-i 9
Power i.evel to Which Restricted, if Any (Net MWe): N/A 10.
Rease ns For Restrictions, if Any:
N/A l
s t
This Month Yr-to-Date Cumulative t
1.1.
Hours in Reporting Period 744 2184 111,289 l
- 12. - Number of. Hours Reactor Was Critical 123.I 123.1 82,968.I 13 Reactor Reserve Shutdown Hours 0
0 0
14'. Hours Generator On-Line 0
0 79,861.1
,15:
Unit Reserve Shutdown Hours 0
0
O Ll6.
Gross Thermal Energy. Generated (MWH) 0 0
159.961.098 17.
Gross Electrical Energy Generated (MWH) 0 0
51,952,919 _ f 18.
Net Electrical Energy Generated (MWH)
-5172
-10,182 49,220,402 19. Unit Service Factor 71.7601
,20.
Un i t _Ava ilabil i ty Facto r
-0
- 71.7601 _
21.-
Unit Capacity Factor (Using MDC Net) --57.21546
- 22.. Unit Capacity Factor (Using DER Net)' 55.70221 l
l'
-23 Unit Forced Outage Rate 12.66441
- 2 4.1-Shutdowns-Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
g N/A'~
)
i 125.
If Shut Down At End Of Repc,rt Period, Estimated Date of Startup: Late April, 1984
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DOCKET NO. 050-237 UNIT NAME Dreedtn II' UNIL SHUTDOWNS AND POWER REDUCTIONS DATE April - 2, 1984 g
COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 REPORT MONTH MARCH. '1984 METHOD OF
. LICENSEE
.CAUSE & CORRECTIVE NOc
'DATEL TYPEI DURATION REASON 2 SHUTTING EVENT.
SYSTEM COMPONENT ACTION TO (HOURS)
DOWN' REACTOR 3 REPORT #-
CODE 4 CODES PREVENT RECURRENCE None 1
2 3
4 F: Forced'
- Reason:
Method:
Exhibit G-Instructions for S: Scheduled A-Equipment Failure.(Explain) 1-Manual Preparation of Data
) File
.D-Regulatory Restriction 4-Other (Explain)
E-Operator Training &. License Examination.
F-Administrative
, f 1G-Operational Error-H-Other (Explain)
.- m
- DOCKET)RO. 050-24
9 P-UNIT NAME Dreedan III
~
L UNIT. SHUTDOWNS AND' POWER.REDUCT70NS' DATE April 2,1984 COMPLETED ' BY B. A. - Schroeder f
~
. TELEPHONE (815).942-2920 -
REPORT MONTH-MARCH, - 1984.-
1 METHOD OF
' LICENSEE' CAUSEl& CORRECTIVE NO.1 DATEi TYPEl
. DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO
.(HOURS).
DOWN! REACTOR 3 REPORT f CODE 4 CODE 5~
! PREVENT RECURRENCE ~
8l
+83-9-30
.S 696:.
C; I
_ Refuel, ISI, and Turbine over-haul outage.
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.2.-
3 4
~ F:c Forced Reason:.
Method:
Exhibit'G-Instructions for S:" Scheduled ~
A-Equipment Failure.(Explain).
1-Manual Preparation of Data
,-B-Maintenance:or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling' 3-Automatic Scram Event Report (
) File
~
D-Regulatory Restriction..:
4-Other (Explain)
'E-Operator Training;& License Examination aF-Administrative l'
G-Oper'ationalLError
.H-Other (Explain)'
/jja AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-237 UNIT II DATE April 2, 1984 COMPLETED BY B. A. Schroeder TELEPHONE 815/942-2920 MONTH MARCH. 1984 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)-
(MWe-Net) 1-790' 17 783 2
781 18 745 3'
- 789 19 78'8
'4 754-20 787 5
787 2I.
760
- 6
- 794'-
22--
357-7'
- 788'
-23 445
- 8 785 24 722
.9 789 25
775 c10 788' 26 777
~
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' 600 27 786' i -
617-
'28 783
?.13 '.
757-29'
,786
.(- 4. '-
778 30-
-794' y
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31 776
- 15: '
~ 784-l16.1 792.
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AVERAGE DAILY UNIT POWER LEVEL.
4 DOCKET NO. 050-249
- UNIT III
< DATE-April 2, 1984
~
COMPLETED'BY B. A. Schroeder'-
TELEPHONE 815/942-2920
~ MONTH MARCH, 1984 DAY.
AVERAGE DAILY. POWER LEVEL-DAY '
AVERAGE DAILY POWER LEVEL
.(MWe-Net)
(MWe-Net)'
1 0
-17 0
2!
0-18 0
.3' 0'
19 0
4:
- 0
' 20 0-l5 0-21 0
-6i
' 0 '-
22-0
.7=
0-
. 23 0-24
.0-8L
- 9
. O.
-25^
- 0
~
O' 26.
0-10.-
- l l -
- 0 27 0
fl2 -
0:
28 0
il3 -
~ 0-29 0
30 o-
-.14.
.o -
15
' Os
- 31
~0 l
16-0
'3
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4 DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE - MARCH, 1984 N CT M NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Cond Vacuum Preventive W.R. #32738 N/A N/A Replaced vacuum switch.
Switch - EPN
- PS-503D Investigated valve opening problem -
LPCI 1501-20A Preventive W.R. #33454 N/A N/A
- tested satisfactory. No problems identified.
MO 220-1 Preventive W.R. #30093 N/A N/A Replaced old overloads with new ones.
HPCI Turbine, Preventive W.R. #32828 N/A N/A Replaced Asco solenoid.
Erch Drain Pot.
EPN #501-2301-37 H Dic OI Preventive W.R. #32;88 N/A N/A Performed annual inspection.
Gen';r tor Tirua Spray Preventive W.R. #33005 N/A N/A Replaced auxiliary contacts.
Valv2 1501-19A,
EPN # 1501-19A R2fu;l Plat-Preventive W.R. #26267 N/A N/A Replaced control transformer.
Ecra CRD HCU 46-31 Preventive W.R. #32727 N/A N/A Installed new accumulator.
Rx Turbine Preventive W.R. #32562 N/A N/A Adjusted door closure.
Intcrlock Door "B" Squib Preventive W.R. #32494 N/A N/A Repaired bad contact screw connection Vriva Indica-in junction box.
ti n
DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE - MARCH, 1984 MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION HPCI Auxiliary Preventive W.R. #32619 N/A N/A Reset and tightened oil slinger.
Cooling H2O PP A MSL Rad Preventive W.R. #33196 N/A N/A Calibrated and repaired "A" recorder Monitor channel.
D2 Dinnel-Preventive W.R. #32821 N/A N/A Replaced pressure regulator on air GenEr: tor start system.
Rx Bldg. Vent Preventive W.R. #31637 N/A N/A Inspected and repaired cables.
ARM] A&B Accumulator Preventive W.R. 32909 N/A N/A Removed and replaced CRD accumulator.
H-14 (30-55) -
Iolction Preventive W.R. #32466 N/A N/A Repacked valve.
C1nden er
- 2-1301-16 Valva A02-1601-63, Preventive W.R. #32763 N/A N/A Replaced solenoid.
EPN #A02-1601-63 CRD Accumu-Preventive W.R. #32461 N/A N/A Repaired star valve due to leaking 1stor #50-31 packing. Also repaired seals.
U2 Dicel Preventive W.R. #32699 N/A N/A Installed bracket for locking device Gen rctor to prevent inadvertent draining of coolant.
DRESDEN UNIT 3 SAFETY RELA ED MAINTENANCE - MARCH, 1984 MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT HAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 3A SBLC Pump Preventive W.R. #32876 N/A N/A Repacked pump.
HPCI Room Preventive W.R. #31026 N/A N/A Removed and installed heads.
Cool:1r LPRM 32-49D Preventive W.R. #20164 N/A N/A Replaced selector switch S-3.
Channel #3, EPN #S-3 Sel1ct or Switch CRD Accumula-Preventive W.R. #24727 N/A N/A Replaced caps on 26-19, 22-23, 14 -4 3,
t n.r and replaced tubing fitting on 10-51, 250VDC Battery Preventive W.R. #29781 N/A N/A Replaced timer.
Chcrg;r D3 E t Torus Preventive W.R. #27873 N/A N/A Opened hatch and wired open.
Manwiy D3 U nt Torus ~
Preventive W.R. #27875 N/A N/A Opened hatch and wired open.
Manw:y D3 Rx Drywell Preventive W.R. #27879 N/A N/A Removed shield blocks and drywell cover.
Cover rnd Shinld Blocks U3 MOV 202-6A, Preventive W.R. #30748 N/A N/A Repaired MOV, replaced motors and limit EPN #3-202-6A switches. Tested ok.
Drywell Equip-Preventive W.R. #27829 N/A N/A Opened drywell equipment hatch, ment Hctch Contcinment Preventive W.R. #29355 N/A N/A Checked for the proper operation of Spr:ya Yarway instrument.
- o DRESDFN UNIT '3
- SAFETY RPLAiED MAINTENANCE - MARCH,
- 1984 NATURE OF-LER OR OUTAGE MI,FUNU10N EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION U3 Reserve Preventive W.R. #30158 N/A N/A Investigated and repaired electrical
-125VDC Ground ground problem.
Panel I-903-33, EPN
- 3-2369 IRM V61tage Preventive W.R.-#33266 N/A N/A Checked for proper C31 values in voltage Pre-Amp C31
~
pre-amplifiers.
Checka SRM & IRM Preventive W.R. #29700 N/A N/A Removed and replaced cables for CRD Cabl:3=
drive work.
LPRM 48-17-D Preventive W.R. #30357 N/A N/A Investigated erratic meter output.
APRM Channel Performed DIP 700-15 on problem noted.
. Preventive W.R. #29560 N/A N/A Investigated LPRM spiking problem.
(APRM Channel Performed DIP 700-15 to burn off 2), EPN #40-whiskers.
' 41-3B PS3-1632A and Preventive W.R. #33381 N/A N/A Performed test using testing for bus 1632C Test undervoltage test.
Rigg.
LPRM 4B-40-33 Preventive W.R. #29556 N/A N/A Investigated LPRM spiking problem.
Channel 6 Performed DIP 700-15 to burn off whiskers.
APRM Contr31. Rod Preventive.W.R. #32622 N/A N/A Replaced all fittings.
Drive Acc.
- 22-31 (F8)
DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - MARCH, 1984 N UNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION All LPRMs Preventive W.R. #29518 N/A N/A Performed LPRM surveillance.
250 VDC Bat-Preventive W.R. #30476 N/A N/A Adjusted voltage up one volt.
tDry Charger U3 Grapple Preventive W.R. #30802 N/A N/A Replaced trolley switch, also installed North & South gear / reducer key.
Travel SRM 24 Preventive W.R. #28368 N/A N/A Adjusted limit switch and replaced bearing and drive seal'.
CRD K-3 Preventive W.R. #29849 N/A N/A Replaced relay.
U3 Rx Recir-Preventive W.R. #31589 N/A N/A Removed and replaced pipe restraint on line culation 3-0201A-28.
Hangcr 3A Recircula-Preventive W.R. #27835 N/A N/A Removed, rebuilt, and replaced PP seal.
tion PP 3-202-3A, EPN
- 3-202-3A Rx Recircula-Preventive W.R. #32729 N/A N/A Removed and replaced angle bracket and tiin System "U" bolt.
Hanger D3 Control Preventive W.R. #31549 N/A N/A Installed new blades.
Bladao Weld 28-8 U3 Preventive W.R. #31601 N/A N/A Removed and replaced pipe restraint on Rx Recire.
line 3-0202A-28, Weld #28-8.
Sy1 tem 3B SBLC Pump Preventive W.R. #33099 N/A N/A Repacked pump.
(.
, DRESDEN UNIT 3 SAFETY RELAYED !!AINTENANCE - MARCH, 1984 NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION V:lve 1402-6B Preventive W.R. #31452 N/A N/A Adjusted limit switch as required to obtain correct position indication.
13 Reactor Preventiv. W.R. #30377 N/A N/A-Removed jumpers.
Scrams Re fuel Preventive W.R. #30724 N/A N/A Adjusted load cell and track switches.
Erappl?
U3 Scram Preventive W.R. #32372 N/A N/A Tightened fitting.
Pilot Solen-
.id A & B Recire.
Preventive W.R. #33295 N/A N/A Tightened bolts.
Pump Suction and "ischarge Isol: tion Vilve:, EPN
- 202-4A & B 202-5A & B D3 LPCI Test-Preventive W.R. #32963 N/A N/A Replaced disc and cover.
1.bl':_ Check VJ1va U3 Di'::sel Cen, Preventive W.R. #32844 N/A N/A Removed, rebuilt and cleaned air relay.
Air Relay Replaced air filters on air start system.
Valve Barton 764 TX Preventive W.R. #31392 N/A N/A Installed Barton retrofit.
Tiru:, Level, EPN #3-1641-SA-5B
~
s DRESDEN UNIT 3 SAFETY R5LAIED MAINTENANCE - MARCH, 1984 MALFUNCTION NATURE OF LER OR OUTAGE EQUIPHENT HAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION U3 Accumula-Preventive W.R. #32022 N/A N/A Tightened fittings and repaired air leaks.
tor; CRD U3 Diesel Preventive W.R. #27712 N/A N/A Installed exhaust screen inspection port.
Generitor, EPN #3-6600
- 3 lie:el Preventive W.R. #31653 N/A N/A Performed semi-annual inspection.
Gener tor 1
J :t Pump HoldJ Preventive W.R. #30845 N/A N/A Removed and installed beam, down Beam #12 Bui No;. 33-1 Preventive W.R. #32399 N/A N/A Obtained necessary current trans former
& 2/3 Diesel nameplate information.
System returned Gener1 tor to normal.
ATWAS Preventive W.R. #30891 N/A N/A Corrected polarity problem. Identified ATWAS test (DIS 260-4 ). Tested ok.
3B Fecire.
Preventive W.R. #23810 N/A N/A Inspected and recorded clearance / thrust PP Mot =r, readings on pump seals.
EPN #3-202B U3 RBCCW to Preventive W.R. #32225 N/A N/A Inspected and cycled M0 valve listed in Dryuell MO, work package. Tested ok.
EPN #3-3702 Rx Recire.
Preventive W.R. #32749 N/A N/A Removed and replaced 2" angle iron Sy: tem Hanger gratting.
CRD L-9 101 Preventive W.R. #32787 N/A N/A Repaired handwheel.
V11ve Diz al Gen.
Preventive W.R. #33140 N/A N/A Replaced 'STR' Relay.
'STR' Relay
DRESDEN UNIT 3 SAFETY RELAiED MAINTENANCE - MARCH, 1984 NATURE OF LER OR OUTAGE HALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Rx Recire.
Preventive W.R. #32621 N/A N/A Removed and replaced 8" "I" beam.
Sy tem Sup-port Beam RBCCW Dis-Preventive W.R. #33013 N/A N/A Unplugged valve.
charge from Drywell Vent R Ive "A" Cori Spray Preventive W.R. #30869 N/A N/A Removed pipe hanger and reinstalled after Loop ISI inspection.
U3 Rx Recire.
Preventive W.R. #31550
.N/A N/A Removed and reinstalled pipe restraint Sy_ tem Weld on weld #28-7.
028-7 3B LPCI Heat Preventive W.R. #32951 N/A N/A Installed plugs # 115 & #415 into 20 tubes Exch:nger as requested.
HPCI Suction Preventive W.R. #30824 N/A N/A Repaired limitorque operator - repacked t2 T rua valve.
3-2301-35, EPN #3-2301-35 D3 Di'sel Preventive W.R. #32732 N/A N/A Replaced two gaskets and applied tight Gener: tor seal to gaskets area.
3B SBLC Pump Preventive W.R. #32875 N/A N/A Repacked pump, replaced all three plungers throttle bushings. Operates ok.
3A Recire.
Preventive W.R. #30005 N/A N/A Removed and installed blind flange.
Pump 3B Recire.
Preventive W.R. #30004 N/A N/A Removed and installed blind flange.
Pump
(- = - 3 :
DRESDEN UNIT 3 SAFETY RELAiED MAINTENANCE - MARCH, I984 g
NATURE OF:
LER OR OUTAGE HALFUNCTION EQUIPMENT MAINTENANCE NUMBER:
CAUSE RESULT CORRECTIVE ACTION i
$3 Eiesel.
Preventive W.R. #31072
-N/A N/A Replaced vibration damper, rebuilt lube Generattr, oil filter and strainer housing valves.
EPN #3-6601 MD-3-2301 Preventive'W.R..#32454' N/A N/A Pat in proper bulb.
MD-3-2301-15 Preventive W.R. #32456 N/A N/A Put in proper bulb.
MD-3-2301-49
. Preventive W.R. f32453
'N/A N/A Replaced open resister.
111ght Bulh '
Preventive W.R.'#32075 N/A N/A Reinstalled light socket.
Replacement',
f'r SDV Drain Rive-;302-157A SBGTS Fan Suc-Preventive E.R. f33137 ~
N/A N/A Replaced tubing connectors, tion AO 2/3-
- 7510Ag EPN
'f7510A
.Spara Ycrway.
- Preventive W.R. #29668 N/A N/A Checked calibration and trip points -
Indicater operates well.
Penetrction Preventiva W.R. f24294~
N/A N/A Disassembled valve to repair binding i204N Pr ssure problem. Tested ok.
, Gauge Isola-tion Valve.
Prevent ve W.R.'#32751 N/A N/A Investigated flow controller problem.
i Flow Control-1cr ACAD Vent
.Found stuck setpoint - repaired.
,t3 SEGT F.C.,
EPN #FC-3-2540 13B' t
d
-...J
.3 3
DRESDEN UNIT 3' SAFETY RELAiED MAINTENANCE - MARCH, 1984 NATURE'OF LER OR OUTAGE MALFUNCTION i
EQUIPMENT MAINTENANC'E NUMBER.
CAUSE RESULT CORRECTIVE ACTION Clean-up'. Drain. Preventive W.R.'#32938 N/A N/A Fabricated and installed a. hanger support Line, EPN for drain line.
- 3-1299-7&8 Off-Gas Rad.
Preventive W.R. #32170 N/A N/A Investigated and repaired failed off-gas Monit':r ' #2 monitor.
ATWS Channel A Preventive W.R.'#30558 N/A N/A Corrected alarm trip problem by modifying or B Trip and correcting relay wiring.
Drywell
-Preventive W.R..#29696 N/A N/A' Verified that sensing lines were un-Sensing Lines obstructed and functioning properly.
~
CCSW Vault Preventive W.R. #30981
'N/A N/A Resealed the vault peuetrations which Penecr;tions failed local leak rate test, U3 Cissel Freventive W.R. #32128 N/A N/A Inspected valves for proper operation and
{
Genercter greased.as needed. Checked ok.
Transf:rmer
' Preventive W.R. #30419 N/A N/A Hooked and unhooked electrical supply for F r U3 ISHI
~
ISHI.
Equipment Refuel Grapple Preventive W.R. #31915:
N/A N/A Investigated and repaired up/down movement problem.
U3 Eiscal Preventive W.R. #32701 N/A N/A Installed bracket for locking device to Gener ter prevent inadvertent draining of coolant.
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DRESDEN UNIT '- 2/3 '
t-
_ ap [
SAFETY RELATED MAINTENANCE - MARCH, '1984 ~
, y NMATUREOF
- LER OR'0UTACE.
MWMON Mll51FIENT
-MAINTENANCE NttlBER CAUSE RESULT CORRECTIVE ACTION' Ex Beed ~
Prcventive W.R.' #30300'.
- N/A-N/A Performed inspection of all lifting Lifting Rigs,
~
devices.
EPN #800 2/3 250V. Eat-
-Preventive W.R;.#30757 N/A-N/A Installed new resistors and wired, tery Charger;
$/3ExBead; Preventive W.R. #30418' N/A.
.N/A Ground out crack indications - rewelded Lifting Rig excavation.
MSL Log Rad.-
Prhventive W.R.-#28934' N/A N/A Checked calibration.
Monitor:
Spare l CE Indicator, Preventive W.R'. #32351-N/A N/A Repaired and calibrated indicator / trip Trip Unit,_
unit.per work package. Returned to stores EFN #1705-8A.
for spare parts.
O 85 and 1705-16A & c 168 Thermocouple-Preventive W.R. #33070 N/A' N/A Replaced thermocouple well gasket on cask.
Well Port Plug
~
~
Gasketc -
TN-9 Cask' IST.T tischarge Preventive W.R. #32786 N/A N/A Investigated breaker trip problem -
Damper, EPN.
no abnormal conditions found. Tested ok.
- 02/3-75078-Amplificrs for Preventive W.R. #27713-N/A N/A Repaired amp boards per vendor's instruc-LPCI Best' tions. Tested ok.
Exchanger iSpare Rod Preventive.W.R. #29202 N/A N/A Modified rod movement switches per instruc-Movement tions. Tested ok.
- Switchea
+j
_ DRESDEN UNIT :'2/3
' SAFETY'RELAiED MAINTENANCE' - MARCH, 1984
^
NATURE OF ILER OR OUTAGE HALFUNCTION EQUIFIENT
. MAINTENANCE NUMBER CAUSE
' RESULT CORRECTIVE ACTION Spare Diesel i Preventive W.R. #32945
-N/A-N/A Rebuilt spare air start motors.
Air. Starters quad-Trip
-Preventive W.R.:f28987 N/A N/A Repaired spare quad trip cards. Tested Cards for' and returned to Stores.
. Preventive ~W.R. #32405 N/A N/A Repaired spare square rooter. Tested Square Rooter and returned to Stores.
S/3 Ciesel Preventive W.R. f32698 N/A N/A Installed bracket for locking device to Gener;t'.r '
prevent inadvertent draining of coolant.
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SUMMARY
OF OPERATING EXPERIENCE UNIT TWO MARCH, 1984 03-01 to 03-31 Unit 2 entered the month operating at a power level of 829 MWe and operated continuously throughout the entire l.
month (with normal power reductions on weekends for surveillances), reaching a power level of 835 MWe with a capacity factor of 93.03% and an availability of 100%.
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SUMMARY
OF OPERATING EXPERIENCE UNIT THREE MARCH, 1984 03-0,1 to 03-22 Unit 3 was shutdown during this period. Preparations were being made to bring the reactor critical which occurred on the 22nd at 2056 hours0.0238 days <br />0.571 hours <br />0.0034 weeks <br />7.82308e-4 months <br />. Shortly thereafter, after some initial core testing, heatup was commenced to bring the unit on-line.
03-22 to 03-31 Heatup continued for several more hours after which time it was ordered to roll the main turbine to bring on-line.
When the turbine reached about 1,000 RPM, a severe vibra-tion occurred. The turbine was then tripped at about 1300 RPM.
Investigation into the vibration found that the turbine H.P. rotor had bowed and rubbed. It will be an additional a to 6 weeks until the turbine is repaired. The status of the unit remains "In Refuel".
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) Dresden Nuclear Power St tion k
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/ Morris, Illinois 60450 Telephone 815/942-2920 s,
April 2, 1984 DJS LTR: 84-34i 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 last month. This information is supplied to your office per the instruc-tions set forth in Regulatory Guide 1.16.
Sincerely, 4-. -
W9 DsjJ. Scott Station Superintendent Dresden Nuclear Power Station DJS:BA3: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 EA On-Site NRC Inspector Sta. Nuc. Eng. Dept.
Comptroller's Office PIP Coordinator INPO Records Center File /NRC Op. Data Flie/ Numerical 1