ML20041B332
| ML20041B332 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 10/02/1981 |
| From: | Maxwell D COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20041B315 | List: |
| References | |
| NUDOCS 8202230535 | |
| Download: ML20041B332 (23) | |
Text
-
't OPERATING DATA REPORT DOCKET NO. 050-010 DATE October 2, 1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 Z-550 OPEPATING STATUS NOTES 1.
Unit Name: Dresden I l
2.
Reoorting Period: 9artamber. 1981 3
Licensed Thermal Power (MWt):
700 l
4.
Nameplate Rating (Gross MWe):
209 5.
Design Electrical Rating (Net MWe): 200 6.
Maximum Dependable Capacity (Gross MWe): 205 7.
Maximum cependable Capacity (Net MWe): 197 8.
If Changes occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons:
N/A 9.
Power Level to Which Restricted, i f Any (Net MWe) : N/A 10.
Reasons For Resti !ctions, i f Any: N/A
[
This Month Yr-to-Date Cwnuiat i.ve.
11.
Hours in Reporting Period 12.
Number of Hours Reactor Was Critical 13 Reactor Reserve Shutdown Hours 14.
Hours Generator On-Line 15 Unit Reserve Shutdown Hours 16.
Gross Thermal E.4ergy Generated (MWH)
~
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1/\\- y -
1.(N..'
Oj 17 Gross Electrical Energy Generated (MWH) 18.
Net Electrical Energy Generated (MWH)
MO J "--"C A-
.O N.
19 Unit Service Factor 20.
Un i t Ava i l ab il i ty Facto r h
21.
Unit Capacity Factor (Using MOC Net)
Vw I".
22.
Unit Capacity Factor (Using DER Net) 23 Unit Forced Outage Rate l
24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
~
N/A 25.
If Shut Ocwn At End Of Report Period, Estimated Oate of Startup: Extended Modification Outage - Shutdown Until June, 1986 I
8202230535 820210 PDR ADOCK 05000010 R
PDR g
OPERATING DATA REPORT DOCKET NO. 050-237
,m.(
DATE October 2.1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 OPERATING STATUS i
NOTES 1.
Unit Name: Dresden II 2.
Reporting Period: Septe=ber. 1981 3
Licensed Thermal Power (MWt): 2.527 4.
Nemeplate Rating (Gross MWe):
828 5
Dasign Electrical Rating (Net MWe): 794 6.
Maximum Dependable. Capacity (Gross MWe): 812 7
Maximum Dependable Capacity (Net MWe):
772 8.
If Changes Occur in Capacity Ratings (Items 3 Through 7) Since Last Report, Give Reasons:
N/A I
9 Power Level to Which Restricted, if Any (Net MWe): N/A 10.
Rassons for Restrictions, if Any:
N/A
(
This Month Yr-to-Date Cumulative.
II.
Hours in Reporting 'eriod 720 6.551 99.791 12.
Number of Hours Reactor Was Critical 698.7 3.411.8 76.549.7 13 Reactor Reserve Shutdown Hours 0
0 0
14.
Hours Generator On-Line 681.4 3.279.6 72.739.6 15 Unic Reserve Shutdown Hours 0
0 0
'16.
Gross Thermal Energy Generated (MWH) 1.622.034 6.682.153 143.980.209 17 Gross Electrical Energy Generated (MWH) 528.514 2.116.491 45.989.354 18.
Nat Electrical Energy Generated (MWH) 500.625 1.989.536 43.458.535 19 Unit Service Factor 94.6 50.1 72.9 20.
Un i t Ava i lab i l i ty Facto r 94.6 50.1 72.9 21.
Unit Capacity Factor (Using MDC Net) 90.1 39.3 56.4 22.
Unit Capacity Factor (Using DER Net) 87.6 38.2 54.8 23 Unit Forced Outage Rate 5.4 5.9 12.3 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
N/A I
25 If Shut Down At End Of Report Period, Estimated Date of Startup: N/A i
t l.
y
5 s.
OPERATING DATA REPORT DOCKET NO. 050-249
('
OATE October 2,1981 COMPLETED SY D. C. Maxwell TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1.
Unit Name: Dresden III 2.
Reporting Period: September, 1901 3
Licensed Thermal Power (MWt): 2,527 4.
Nameolate Rating (Gross MWe):
828 5
Design Electrical Rating (Net 11We): 794 6.
Maximum Dependable Capacity (Gross MWe): 812 7
Maximum Dependable Capacity (Net MWe):
773 S.
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 Rest-ictions, i f Any: N/A I l This Month Yr-to-Date Cumulative 11.
Hours in Reporting Period 720 6.551 89.376 12.
Number of Hours Reactor Was Critical 555.1 6,313.1 68,600.1 13 Reactor Reserve Shutdown Hours 0
0 0
14.
Hours Generator On-Line 522.9 6.243.8 65.877.1 15 Unit Reserve Shutdown Hours 0
/
0 0
16.
Gross Thermal Energy Generated (MWH) 933.538 14.013.515 130.497.985 17 Gross Electrical Energy Generated (MWH) 295.444 4.515.732 42.516.300 18.
Net Electrical Energy Generated. (tiWH) 274,942 4,288,490 40,311,390 19 Unit Service Factor 72.6 95.3 73.7 20.
Unit Availability Factor 72.6 95.3 73.7 21.
Unit Capacity Factor (Using MDC Net) 49.4 84.7 58.3 22.
Unit Capacity Factor (Using OER Net) 48.1 82.4 56.8 23 Unit Forced Outage Rate 27.4 3.8 14.31 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
l Normal Refueling Outage starting approximately January 2,1982 for 4 months.
25 If Shut Down At End Of Report Period, Estimated Date of Startup: N/A
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J AVERAGE DAILY UNIT POWER LEVEL
, m.
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DOCKET NO. 050-010 i
UtilT Dresden I OATE October 2,1981 COMPLETED 8Y D. C. Maxwell TELEPHONE (815) 942-2920 MONTH SEPTDBER, 1981 OAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Ne t) 1 0
17 0
2 0
18 0
3 0
19 0
4 0
20 0
(
5 0
21 0
6 0
22 0
7 0
23 0
i 8
0 24 0
9 0
25 0
10 0
26 0
11 0
27 0
12 0
28 0
13 0
29 0
l 14 0
30 0
L 15 o
31 1
16 0
.I 4
O s
I g
4
/
f AVERAGE DAILY UNIT POWER LEVEL (m
DOCKET NO. 050-237 UNIT Dresden II DATE october 2, 1981 COMPLETED BY D. C. Maxwell TELElHONE (815) 942-2920 i
MONTH SEPTEMBER, 1981 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 821 17 811 2
803 18 808 3
807 19 767 4
793 20 754
(
5 812 21 787 6
636 22 0
782 7
23 139 8
779 24 578 9
777 25 713 10 820 26 798 11 822 27 751 12 818 28 807
.,I 13 780 29 816 14 805 30 819 15 809 31 16 811 i
i A
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AVERAGE DAILY UNIT POWER LEVEL c(..,
DOCKET NO.
050-249 UtilT Dresden III DATE October 2, 1981 1
COMPLETED BY D. C. Maxwell P
TELEPHONE (815) 942-2920 MONTH SEPTEMBER, 1981 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-flet)
I 599 17 O
2 0
18 '
O 3
0 19 3
4 105u 20 337 f
(
5 576 21 584
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6.
607 22 594 7
559 23 583 i.
8 609 24 588 9
606 25 580 10 603 26 111 11 600 27 570 12 593 28 57
___ 9 13 587 29 565 14 579 30 563 15 31 31 16 0
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I l.1 - - - ---.- --
I-I --
DOCKET NO. 050-010 f'
UNIT NAME Dresde l UNIT SituTDOWNS AND JER REDUCTIONS DATE October 2.1981
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COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 REPORT HONTli SEPTEMBER, 1981 J
.h METHOD OF LICENSEE CAUSE & CORRECTIVE NO.
DATE TYPEI DURATION REASON 2 SilUTTING EVdNT SYSTEM COMPONENT ACTION TO (llOURS)
DOWN REACTOR 3 REPORT f CODE 4 CODES PREVENT RECURRENCE l
8 781031 S
744 C
3 Refueling turbine overhaul &
chem *:a1 cleaning outage, m
i 1
2 3
4 F: Forced Reason:
Method:
.sibit C-Instructions for S:
Scheduled A-Equips.nt Failure (Explain) 1-Manual reparation of Data B-Haintenance of Test 2-Manual Scram
.itry Sheets for Licensee C-Refueling 3-Automatic Scram Evt-nt Report (
) File j
D-Regulatory Restriction 4-Other (Explain)
(1.UREC-0161)
E-Operator Training & License Examination F-Administrative l
C-Operational Error it-Other (Explain) l L__
UNIT NAME Drardan II UNIT SHUTDOWNS,AND POWER REDUCTIONS DATE October 2, 1981 COMPLETED BY D. C.
xwell ij TELEPHONE (315) 942-2920 i
REPORT HONTil SEPTEMBER. 1981 METil0D OF
- LICENSEE CAUSE & CORRECTIVE i
NO.
DATE TYPEI DURATION REASON 2 SilUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)
DOWN REACTOR 3 REPORT d CODE 4 CODES PREVENT RECURRENCE
- l I
1 7
810921 F
38:37 A
3 Hechanical problem in' circuitry of turbine stop valves.
s I
i i
1 2
3 4
F: Forced Reason:
Method:
Exhibit C-Instructions for S:
Scheduled A-Equipment Failure (Explain) 1-Manual Pteparation of Data B-Haintenance of Test 2-Manual Scram Entry Sheets for Licensee
{
C-Refueling 3-Automatic Scram Event Report (
) File j
D-Regulatory Restriction 4-Other (Explain)
(hUREC-0161)
E-Operator Training & License Examination i
F-Administrative C-Operational Error H-Other (Expit:in) j w
/
l DOCKET NO. 050-249_
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UNIT NAME Dreedi III UNIT SilUTDOWNS AND vWER REDUCTIONS DATE OctoYer 2,1981 CCMPLETED BY D. C. Maxwell TELEPilONE_ (815) 942-2920 REPORT MONTil SEPTEMBER, 1981
\\
METil0D OF LICENSEE CAUSE & CORRECTIVE j,
NO.
DATE TYPEI DURATION REASOH2 SilUTTING EVENT tiYSTEM COMPONENT ACTION TO (liOURS)
DOWN REACTOR 3 REPORT i CODE 4 CODES PREVENT RECURRENCE l
l
)
7 ol0901 F
63:41 A
3 Mechanical problem in circuitry of turbine stop valves, i
ii IIPCI System conservatively de-8 810915 F
116:02 A
1 81-24/01T-0 clared inoperable when water was di'scovered in the llPCI steam line (two reactor scrams during cold shutdown because of RPS M.C. set problems).
9 810926 F
17:26 A
3 Mechanical problem in circuitry of turbine stop valves.
1 2
3 4
Y: Forced Reason:
Method:
Exhibit C-Instructions for S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance of Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Evtnt Report (
) File D-Regulatory Restriction 4-Other (Explain)
(t:UREG-0161)
E-Operator Training & License Examination F-Administrative C-Operational Error li-Other (Explain)
c.
DRESDEN UNIT 2 h
SAFETY RELATED MAlHTENANCE - SEPTEMBER, 1981
~
4 i-o NATURE OF LER OR OUTAGE HALFUNCT10ti-I.
EQUlPHENT HAlllTENANCE NUHilER CAUSE RESul_T CORRECl VL' FACTION APRM Rod Block Preventive WR #15179 N/A N/A Returned APRM scram &
& Scram rod block back to normal as par DIS 700-6.
Acoustic Moni-Preventive WR #14403 N/A N/A Removed sensor & all i
tor 3B Torus associated wiring for Vent Line spcre acoustic monitor.
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CRD S/N.6567 Preventive WR #07109 N/A N/A CRD S/N 6567 was found to have cracks in collett housing. After P.T. was performed, reusable parts will be cleaned & stored.
Bad parts will be junked.
Collett housing.was cut up & D.A. wed.
RBM Rod Block Preventive WR #15178 N/A N/A Reduced RBM settings as specified. Returned RBB to norma). as per. DIS 700-8.
IRM-17 Preventive WR #15080 N/A
!!/A Replaced relay K6.
Func-tionally tested downscale alarm. Calibrated via DIS 7004.
CRD S/N 689C Preventive WR #07093 N/A N/A Initial PT of CRD S/N 689C found unacceptable cracks in collett housing, area. Drive stripped down I
& good parts are being saved. Ilousing was cut up
& scrapped.
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- DRESDEN UNIT 2 SAFETY RELATED HAlHTENANCE SEPTEMBER, 1981
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NATURE OF LER OR OUTAGE HALFUNCTION EQUIPitENT HAlllTENAllCE NUMBER CAUSE RESULT CORRECTIVCPACTION CRD S/N 1247 Preventive WR #10332 N/A N/A CRD S/N 1247 was found l
to t. ave unacceptable cracks in the collett housing. Rejects this drive snare parts will I
be cleaned & revised.
l The remaining bad parts- '" l will be junked. Collett housing was cut up &
D.A. wed.
D2 CRD S/N 1032 Preventive WR #02766 N/A N/A CRD S/N 1032 failed PT test; being scrapped.
Drive disassembled, parts still good are being charged into Storeroom hold case. Drive housing was c'ut up & D. A. wed. _
litnger Preventive WR #15646 N/A N/A Removed old weld & in-stalled new 1" stud &
welded same.
D2 IIPCI Hangers Preventive WR #15629 N/A N/A Welded new studs into hangers..
Turbine 1st Preventive WR #14579 N/A N/A Replaced switch'& re-Stage Press. Sw calibrated.
CRD S/N 773C Preventive WR #08700 N/A N/A Disassembled CRD S/N 773C
& cleaned & stored re-usable parts. Initial PT indicated drive to have cracked collett housing I
which rejected drive.
Collett housing was cut up & D.A. wed.
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DRESDEN UNIT 2 SAFETY RELATED HAINTENANCE - SEPTEMBER, 1981
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NATURE OF LER OR OUTAGE HAl.fullCT I0il EQUIPHENT HAlllTENAllCE NUMBER CAUSE RESULT CORRECTIVEFACTION D2 CRD S/N 6205 Preventive WR #02767 N/A N/A Drive S/N 6205 has been rejected per the PT.
See attached report-i disassembled drive &
cleaned. Saved all re-usable parts. Drive housing was cut up &
discarded.
DW 111 Pressure Preventive WR #15523 N/A N/A Replace switch with like.
Sw. "D" for-like. Perform DIS 1600-4 for 1632D.
IIPCI Oil Filter i Preventive WR #15162 N/A il/A Removed filter assembly.
Cleaned & installed with new "O" ring & gasket.
CRD 14-23(D-6)
Preventive WR #15336 N/A N/A Changed out accum. ser.
- 2428. Placed in garage with hold ticket #81-193 on.it pitted.
Refuel Platform Preventive WR #13559 N/A N/A Rebuilt solenoid.
Refuel Platform Preventive WR #13558 N/A N/A Checked & found ok.
Refuel Platform Preventive WR #13560 N/A N/A Checked & found ok.
U2 2-1601-55 Preventive WR #15203 N/A N/A Replaced solenoid valve.
Valve U2 CRD Accum.
Preventive WR #15147
~ N/A N/A Replaced CRD accumulator 34-55 (J-14) per DNP 300-A.
2B Rx Recire.
Preventive WR #15181 N/A N/A Removed I coupling bolt Pump
& installed 3/4" rod plus 8' wire cable to
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turn pump manually.
'i DRESDEN UNIT 2
~
s SAFETY RELATED HAlHTENANCE - SEPTEMBER, 1981 NATURE OF LER OR OUTAGE flALFUNCTION EQUIPHENT HAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE' ACTION 2B LPCI Pump Preventive WR #15536 N/A N/A Replaced defective seal with new seal #239.476 seal. Checked for press.
when running pump. 0 leakaEe.
Rx Bldg. Inter-Preventive WR #15378 N/A N/A keplaced time delay re-lock Door lay sticking on U2 Rx Bldg. Door.
U2A 125V DC Preventive WR #15219 N/A N/A Replaced bad timer &
Batt. Charger adjusted float & equal-iz,e voltages.
U2 Grapple N/A N/A Replaced coupling.
Refuel Platforni Preventive WR #12936 N/A N/A Replaced & adjusted micro-switch.
LPRM (26)
Preventive ~WR #14633 N'/A N/A Found detector indicating 24-41C monitored for a loss signal condition. No problems found.
LPRM 08-4SC Preventive WR #14428 N/A N/A Found detector indicating monitored for loss of signal. Found no prob-lems. Detector indicating normal.24-09C LPRM Preventive WR #13585 N/A N/A Replaced power supply module connector (pin would not latch in).
Checked for proper high voltage.
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r DRESDEN UNIT 2 SAFETY RELATED HAINTENANCE - SEPTEMBER, 1981 i
'l NATURE OF LER OR OUTAGE HALFUNCT10ll-EQUIPliENT HAlllTENANCE NUHDER CAUSE RESULT CORRECTlVE*ACT10N A F.P. Ili Rad Preventive WR #15675 N/A N/A Replaced "A" fuel pool l
Honitor
)
ARM sensor. Calibrated I
functionally; tested via DIS 1700-7.
l l
2B LPCI Sample Preventive WR #15742 N/A N/A Rodded out; flushed l
Line sample line.
l 2A CCSW Pump Preventive WR #15728 N/A N/A Removed old bearing &
installed new one. In-stalled new oil seal &
repacked pump.
i LPRM 32-57D Preventive WR #14578 N/A N/A Replaced CR2 on LPRM l
(C2)
Amp cart. Checked for n l:
proper reference voltage'.
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m DRESDEh UNIT 3 SAFETY RELATED HAlHTENANCE - SEPTEMBER, 1981 NATURE OF LER OR OUTAGE HALTUNCTI0li EQUIPHENT HAlllTENANCE HUNDER CAUSE RESULT CORRECTIVCFACTION i
Iso. Condensel Preventive WR #15257 N/A N/A Found switch for out of liigh Flow calibration. Recali-Alarm brated alarm switch &
completed SWW # DIS 1300-2.
.U3 24/48V B-Preventive WR #13505 N/A N/A Repaired float voltage Battery Charg dash pot. Checked float
& equalize voltages, also okay. Referred to
]
DHP 8300-7 for setting.
MSL Flow Diff Preventive WR #15621 N/A N/A Cleaned internals of Precs. Switch
. switch. Replaced the 261-2B meter movement; tested
'okay via DIS 250-1.
3 Rx. Bldg.
Preventive WR #15166 N/A N/A Replaced versa valve.
Outlet Iso.
.. A
Refuel Grapple Preventive WR #14762 N/A N/A Replaced bad bulb on latch light circuit.
3-202-9A Valva Preventive WR #15575 N/A N/A Hegger reading Tl 50m T2 50m T3'50m bridge A-B 48-02 B-C 47.74 C-A 47.70 (bumped open; contractor noted in-creased current draw).
DB (10) MSIV Preventive WR #15599 N/A N/A Check existing coil from control room. It appears to be okay. Ilowever, to be prudent, it'was de-cided to replace DC coil.
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DRESDEN UHlT 3 SAFETY RELATED HAINTENANEE - SEPTEMBER, 1981 NATURE OF LER OR OUTAGE HAl.FUNCT 10ll-EQUIPHENT HAlllTENANEE NUHDER CAUSE RESUL1 CORRECTIVC" ACTION Core Spray Preventive WR #06081 N/A N/A Replaced vs1ves with (4)
Vent Valve Hancock #5500W & welded 3-1402-551A in place.
H03-1201-1 Preventive WR #15614 N/A N/A Tightened packing; added 3 rings of packing 1871.
3-1301-1 Valva Preventive WR #14303 N/A N/A Removed packing down to lanter ring. Couldn't get ring out; repacked with 1871 10 rings.
CRD C-10 Preventive WR #15617 N/A
~N/A
. Adjusted scram inlet &
Accum 10-39 outlet valve on accum.
10-39 (one full' turn down).
Iso. Cond.
Preventive WR #15232 N/A N/A Repacked valve.
Cland Leak Ofl MSL 1 sol.
Preventive WR #11822 N/A N/A Performed SOP 81-3-31 2131C Operated okay; could not find any problem.
Annunciator Preventive WR #14345 N/A N/A Jumlered ' alarm card okay.
i A6 on 903-3, Jumpered across H-4T contact & they picked up alarm. Wright will do next time surveillance.
3A RPS HE Set Preventive WR #15847 N/A N/A Replaced aux, contacts &
overload & bench tested.
3B Recire. Pp.
Preventive WR #15792 N/A N/A Hydro on seal showed 2300 Seal Mil min. leakage -
t checked twice.
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DRESDEvi UNIT 3 i
SAFETY RELATED HAINTENANCE - SEPTEMBER, 1981 l
NATURE OF LER OR OUTAGE HALFUNCT10ll-EQUIPHENT HAlllTENANCE NUH0ER CAUSE RESULT CORRECTIVCFACTION l
U3 HPCI Aux.
Preventive WR #15701 N/A N/A Pulled pump, inspected Cooling Water internals, changed bear-Pump ing & packing. Rein-stalled pump; returned to service.
3A Rx Recirc.
Preventive WR 915623 N/A N/A Cut section of 3/4" l
Pp.
pipe out as per attached section.
l D3 LPRM Preventive WR #10738 N/A N/A All dials indicate 16-17-C proper operation. De-tector okay. No problem, now.
LPRM 32-17-C Preventive WR #07542 N/A N/A Completed DIS 7 0-22 APRM Ch #2 again 5-11-81 & LPRH I
operating good.
~
LPRM 24-17C Preventive WR #11254 N/A N/A Completed DIS 700-26 &
verified operation. No problem found.LPRM 16-33D Preventive WR #11093 N/A N/A Completed DIS 700-26 &
verified porrect opera-tion & cable. No problems.LPRM 40-41D Preventive WR #10730 N/A N/A Completed DIS 700-26 &
verified proper opera-tion & cal, on plateau.
LPRM (APRM Ch Pr'eventive WR #16305 N/A N/A Completed DIS 700-26.
- 3) IB-16-49 LPRM indicated good.
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DRESDEN UNIT 2 i
SAFETY RELATED HAlHTENAHEE - SEPTEMBER, 1981 L
HATURE OF LER OR OUTAGE HALIUNCTI0ll-l EQUIPHENT HAlllTENANCE HUH 0ER CAUSE RESULT CORRECTIVE"ACTIDH LPRM 16-49C Preventive WR #10152 N/A N/A Completed DIS 700-26 & -
verified correct opera-tion. No adjusting at
~,
this time.
LPFH 48-41B Preventive WR #10740 N/A N/A Completed DIS 700-26 &
700-22 & found LPRM system responding cor-rectly. No spiking evident.
D3 LPRM Preventive WR #09994 N/A N/A Completed DIS 700-26 &
24-41-C 22: System reading cor-reccly & datector plateau satisfactory.
No problem found.
APRM Ch #1 Preventive WR #11750 N/A N/A Perform DIS 700-22 &
DIS 700-27.
Cen. Load Re-Preventive WR #15905 N/A N/A Replaced relay with lay S.V. Scrai like replacement.
Cond. Low Vac Preve.tive WR #15850 N/A N/A Removed relay blocks on
& MSL Iso.
HFA. relays 590-ll2A, Valve Closure ll2B, 1120, ll2D; Bypass Relays cleared jumper log 9-18-81.
D3 Scram 600 Preventive WR #15814 N/A N/A Removed relay blocks psig on 590-ll3A & ll3B jumper #22-81 & 23-81.
i Relay 595-111/
Preventive WR #15815 H/A N/A Removed relay on relay 595-lllA Jumper #24-81.
U3 MSIV IC Preventive WR'#15634 N/A N/A Replaced pilot valve manifold assembly.,
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n DRESDEN UNIT 2/3 SAFETY RELATED HAlNTENANCE - SEPTEMBER, 1981 I
NATURE OF LER OR OUTAGE liALFUNCTIDit l
EQUIPHENT HAlllTENANCE HUtinER CAUSE RESilLT CORRECTIVE?ACT10N 2/3 D/G In-Preventive WR #15745 N/A N/A Repaired door latch, terlock Door 2/3 Diesel Preventive WR #14799 N/A N/A EMD & MMD performed Generator 3 mo. & 6 mo. inspection.
"B" SGTS Preventive WR #15676 N/A N/A Removed ground on Fu 4 circuit.
Diesel Gen.
Preventive WR #12831 N/A H/A Installed PS & set to 70 PS, Closed & reset
Sparg Elec-Preventive WR #15790 N/A N/A Seal welded plug into tromatic Re-
- place, lief G
e G
9 4
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SUMMARY
OF OPERATING EXPERIENCE UNIT ONE SEPTEMBER, 1981 9-1 to 9-30 Unit One was shutdown for the entire month, awaiting license approval for the chemical cleaning. Major work scheduled to be completed following chemical cleaning is as follows: HPCI installation for ECCS upgrading, equip-ment upgrade to IEE 279, major in-service inspection, and refuel.
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SUMMARY
OF OPERATING EXPERIENCE UNIT TWO SEPTEMBER, 1981 9-1 to 9-22 Unit Two entered the month operating at a power level of 815 MWe and operated until 9-21-81, at 2323 hours0.0269 days <br />0.645 hours <br />0.00384 weeks <br />8.839015e-4 months <br />, when a scram occurred while exercising the #2 turbine stop valve and mechanical problems closed the other three stop valves, shutting down.
I the Unit. Another reactor scram occurred
(
on 9-22-81, at 1310 hours0.0152 days <br />0.364 hours <br />0.00217 weeks <br />4.98455e-4 months <br />, because IKH's 11, 13, and 15 spuriously spiked high.
g.
The reactor was brought critical on 9-22-81 at 2040 hours0.0236 days <br />0.567 hours <br />0.00337 weeks <br />7.7622e-4 months <br />.
9-23 to 9-30 The Unit was placed in service on 9-23-81, at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />, and operated continuously during the remainder of the month, reaching a power level of 825 MWe, with a capacity
.i, factor of 88.02% and an availability of f
94.64%.
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SUMMARY
OF OPERATING EXPERIENCE C'
UNIT THREE t
SEPTEMBER, 1981 9-1 to 9-4 Unit Three entered the month operating at a power level of 610 MWs. While exer-cising the $2 turbine stop valvo, at 2327 hours0.0269 days <br />0.646 hours <br />0.00385 weeks <br />8.854235e-4 months <br />, a mechanical problem developed in the circuitry, and all the stop valves closed, scrac: ming the reactor. The reactor was made critical on 9-3-81, at 2319 hours0.0268 days <br />0.644 hours <br />0.00383 weeks <br />8.823795e-4 months <br />, and startup routines continued until 9-4-81, at 0549 hours0.00635 days <br />0.153 hours <br />9.077381e-4 weeks <br />2.088945e-4 months <br />, when the reactor scrammed because of a low condenser vacuum situation.
The reactor was made critical at 1012 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.85066e-4 months <br />, and the Unit was plac.ed in service at 1508 hours0.0175 days <br />0.419 hours <br />0.00249 weeks <br />5.73794e-4 months <br />.
9-5 to 9-19 The Unit operated until 9-15-81, at 0320 hours0.0037 days <br />0.0889 hours <br />5.291005e-4 weeks <br />1.2176e-4 months <br />, when it was manually taken off the system to repair the HPCI system that had been declared inoperable. The reactor was made suberitical at 0656 hours0.00759 days <br />0.182 hours <br />0.00108 weeks <br />2.49608e-4 months <br />. While repairs were being made to the HPCI system piping supports, the reactor scrausned on 9-17-81, at 0610 hours0.00706 days <br />0.169 hours <br />0.00101 weeks <br />2.32105e-4 months <br />, as the 3B RPS MG Set was being taken out of service (the i
reactor was already in cold shutdown). The reactor again scrammed at 0705 hours0.00816 days <br />0.196 hours <br />0.00117 weeks <br />2.682525e-4 months <br /> as the 3B RPS MG set was being switched to its power source. The reactor was brought critical on 9-19-81 at 1126 hours0.013 days <br />0.313 hours <br />0.00186 weeks <br />4.28443e-4 months <br />, and the Unit was placed P
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. 9-5 to 9-19 (Continued)
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in service at 2322 hours0.0269 days <br />0.645 hours <br />0.00384 weeks <br />8.83521e-4 months <br />.
9-20 to 9-26 The Unit operated until 9-26-81, at 0025 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />, when a reactor scram occurred because of a mechanical problem caused all stop valves to close while normal exercising of the #2 stop valve was in progress. The reactor scrammed at 0040 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> because of low con-denser vacuum and at 0525 hours0.00608 days <br />0.146 hours <br />8.680556e-4 weeks <br />1.997625e-4 months <br />, while per-forming the Automatic Control Rod Insertion on Low Control Air Pressure Surveillance (the reactor was in cold shutdown). The reactor was made critical at 1236 hours0.0143 days <br />0.343 hours <br />0.00204 weeks <br />4.70298e-4 months <br />, and the
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unit was placed in service at 1751 hours0.0203 days <br />0.486 hours <br />0.0029 weeks <br />6.662555e-4 months <br />.
9-27 to 9-30 The Unit operated during the remainder of the acnth, reaching a power level of 575 MWe, with a capacity factor of 49.32% and an availability af 72.62%.
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