ML20083J051
| ML20083J051 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 12/31/1983 |
| From: | Schroeder B, Scott D COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| 84-19, NUDOCS 8401160144 | |
| Download: ML20083J051 (16) | |
Text
,
j OPERATING DATA REPORT DOCKET NO. 050-237 DATE January 3, 1984 COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1.
Unit Name:
Dresden II Please correct the figures 2.
Raporting Period: December, 1983 for item #17 for the month 3
Licensed Thermal Power (MWt):
2,527 of October, 1983 4.
Nameplate Rating (Gross MWe):
828 5.
Design Electrical Rating (Net MWe): 794 554'472 2'700'111 55'588'377 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 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 Cumulatl"'
11.
Hours in Reporting Period 744 8760 119.520 12.
Number of Hours Reactor Was Critical 731.05 5366.65 92.224.5 13 Reactor Reserve Shutdown Hours 0
0 0
14.
Hours Generator On-Line 716.05 5079.33 90.905.97 15 Unit Rese,rve Shutdown Hours 0
0 o
16.
Gross Thermal Energy Generated (HWH) 1,656,942 11,273,265 176.754,774 17 Gross Electrical Energy Generated (MWH) 538,482 3,613,933 56.502.199
~
18.
Net Electrical Energy Generated.(MWH) 511,576 3.391.076 53.388.266 19 Unit Service Factor 96.24 57.98 76.06 20.
Unit Availability Factor 96.24 57.98 76.06 21.
Unit Capacity Factor (Using MDC Net) 89.07 50.14 57.86 l
22.
Unit Capacity Factor (Using DER Net) 86.60 48.75 56.26 l
23 Unit Forced Outage Rate 3.76 17.40 11.67 l
24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
N/A l
25.
If Shut Down At End Of Report Period, Estimated Date of Startup:
N/A 2bE B401160144 831231 PDR ADOCK 05000237 R
OPERATING DATA REPORT DOCKET NO.
050-249 DATE January 3, 1984 4 COMPLETED BY B. A. Schroeder TELEPHONE OPERATING STATUS NOTES 1.
Unit Name:
Dresden III 2.
Reporting Period:
December, 1983 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 capacity (Net MWe):
773 8.
If Changes Occur in Capacity Ratings (items 3 Through 7) Since 8.ast 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 744 8760 109,105 12.
Number of Hours Reactor Was Critical 0
6454.3 82,845.0 13 Reactor Reserve Shutdown Hours 0
0 14.
Hours Generator On-Line 0
6403.1
_h 15.
Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 0 13.699.358 159.961,098 17 Gross Electrical Energy Generated (MWH) 0 4.387.788 51,s52,919 18.
Net Electrical Energy Generated. (MWH)
-3563 4.147.939 49.210.584 19 Unit Service Factor 0
73.09 73.20
, 20.
Unit Availability Factor 0
7 3. 0-(
73.2c 21.
Unit Capacity Factor (Using MDC Net) 0 61.26 58.37 22.
Unit Capacity Factor (Using DER Net) 0 59.64 56.82 23 Unit Forced Outage Rate 0
2.21 12.66 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:
Mid-March 1984
DOCKET NO. 050-237 UNIT NAME DrAdsn II UNIT SHUTDOWNS AND POWER REDUCTIONS DATE Jcnu ry 3, 1984 COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 REPORT MONTH DECEMBER. 1983 METHOD OF LICENSEE CAUSE & CORRECTIVE NO.
DATE TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)
DOWN REACTOR 3 REPORT #
CODE 4 CODES PREVENT RECURRENCE
(
Due to cold weather, instru-I 15 83-12-25 F
27.9 H
3 ments on feed system froze causing loss of RFP, thus low Rx water level scram. Corrected and repaired.
I i
)
1 2
3 4
F:
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.
F-Administrative G-Operational Error H-Other (Explain)
DOCKET NO. 050-249 UNIT NAME Dresden III UNIT SHUTDOWNS AND POWER REDUCTIONS DATE 3rnu ry 3.
1984 s
COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-2920 REPORT MONTH DECEMBER, 1983 METHOD OF LICENSEE CAUSE & CORRECTIVE-NO.
DATE TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)
DOWN REACTOR 3 REPORT #
CODE 4 CODES PREVENT RECURRENCE Refueling, ISHI, ISI and 8
83-9-30 S
744 C
1 turbine overhaul outage.
i 1
1 2
3 4
F:
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.
F-Administrative G-Operational Error H-Other (Explain)
r.
AVERAGE DAILY UNIT POWER LEVEL l-I DOCKET NO. 050-237 UlllT II DATE January 3, 1984 COMPLETE 0 BY B. A. Schroeder TELEPHONE 815/942-2920 HONTH DECEMBER, 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (HWe-Net)
(MWe-Net) 1 f
17 776 1
732 2
777 18 618 3
711 19 752 4
764
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20 733 5
783 21 729
- ~.
6 742 22 675 7-782 23 772 8
710 24 772 764 9
25 14 2 781 10 26 208 730 j y 27 431 12 795 28 607 731 13 725 29 767 14_
766
- 30 590 15 755 33
. 16 785 s.
e d
h AVERAGE DAILY UNIT POWER LEVEL j:
i DOCKET NO. 050-249 UNIT III i
.DATE January 3, 1984 COMPLETED BY B.
A. Schroeder TELEPHONE 815/942-2920 r
MONTH DECEMRM. 1983 DAY.
AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL
~
(MWe-Net)
(MWe-Net) 1 0
17 p
-o
-2 0
18 o
--3 0
19 0
4 0
20 0
5 0
21 0
t n
7 0
23 0
8 0
24 0
9 0
25 0
10 0
26 0
- 11 0
27 0
12 0
28 0
13 0
29 0
14 0
30 0
0' 15 0-31 16 0
9 y
__m_m_.
1 -
DRESDEN UNIT 2 l-SAFETY RELATED MAINTENANCE - DECEMBER. 1983.
{.
E WNCTION I
NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAU.SE RESULT CORRECTIVE ACTION Local Station Preventive W.R. #29794 N/A N/A Replaced light socket with "like for like" M0 1501-13B replacements.
U-2 Accum.
Preventive W.R. #31406 N/A N/A Replaced connector.
'46-23M-6 lIICUM-8 Star Preventive W.R. #31353 N/A N/A Repacked valve.
l Valve.
l(2-0305-111)
HPCI Drain Pot Preventive W.R. #29357
'N/A N/A Removed and replaced packing.
Jl Trap Outlet EPN 2-2301-54 l
N/A N/A Fabricate and installed temporary clamp.
i CRD Insert Line Preventive W.R. 631473 CRD 32-03 2D MSIV Preventive W.R. #30343 N/A N/A Tightened fitting as required.
N/A N/A Adjusted packing.
2B MSIV Preventive W.R. #30342 (A0/SV2-220-47 Preventive W.R. #31469 N/A N/A Tightened fitting as required.
l N/A N/A Tightened fitting and diaphram bolts.
SO/SO 2-220-44 Preventive W.R. #31468 l Rx 110 Sample Preventive W.R. #31471 N/A N/A Adjusted packing.
2 IValve EPN l #2-220-45 A0/SO 2-220-46 Preventive W.R. #31470 N/A N/A Tightened fittings.
[
,D2 Safety Valve Preventive W.R. #31456 N/A N/A Replaced ruptured disc.
, EPN #2-203-4 A i
m -
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J b._
m
. - r_.. _-
r,.---
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e _
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f DRESDEN UNIT 2 l
i SAFETY RELATED MAINTENANCE - DECEMBER. 1983 N, TION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION L,
L i D2 Vacuum Preventive W.R. #29685 N/A N/A Removed and replaced covers.
[.4
' l Brar.ker EPN i
H#2-1601-33C6F l!
lSRM 23 Preventive W.R. #23770 N/A N/A Cleaned chassis and connectors.
N/A N/A Replaced with new timer.
! U-2 "B" 24/48 Preventive W.R. #30728 l Charger s
N/A N/A Replaced relay.
[CHIAPRMEPN Preventive W.R. #31044
- 2-756-101-A Isolation Pre'7entive W.R. #31159 N/A N/A Adjusted packing lube stem witn N-5000 Condenser Valve l1301-1 4
I ast Torus Preventive W.R. #31276 N/A N/A Opened torus hatch.
)E Hatch East Torus Preventive W.R. #31299 N/A N/A Closed cast torus hatch.
' Hatch hHPCIValve Preventive W.R. #31160 N/A N/A Adjusted packing.
EPN #2-2301-4 N/A N/A Repaired wire.
I' U-2 TB/RB Preventive W.R. #31076 Interlock Door HPCI Oil Filter Preventive W.R. #30762 N/A N/A Removed, dismantled, cleaned and re-assembled oil filter.
2-220-45 Valve Preventive W.R. #31177 N/A N/A Re-crimped lugs for wiring at valve coil.
EPN #2-220-45 i
8
=
n
..- - - ~ ~
.F DRESDEN UNIT 2~
SAFETY RELATED MAINTENANCE - DECEMBER, 1983 l
6' l
i
)
. EQUIPMENT MAINTENANCE NUMBER CAUSE-RESULT CORRECTIVE ACTION MWNCTION NATURE OF LER OR OUTAGE I
>[ HPCI Motor Gear Preventive W.R. #29828 N/A' N/A Replaced defective amplifier on controller. g i Unit HPCI LLRT Valve Preventive W.R. #29858 N/A
.N/A Inspected and repacked valve.
' Accum. 34-31 Preventive W.R. #31061 N/A N/A Repacked N2 fill valve.
(Drywall Hi Rad Preventive W.R. #3017,s N/A N/A Investigated " spiking" problem - calibrated l Mon CH B EPN and performed function test - ok.
, #2-2419B Rx Bldg. CCW Preventive W.R. #29168 N/A N/A Replaced photo tube in scintilation detec-Rad Monitor tor.
,08-33B APRM-6 Preventive W.R. #29148 N/A N/A finched wire caused abnormal output -
re-routed and repaired wire.
t LPRM 08-33B Preventive W.R. #29275 N/A N/A Investigated improper output of APRM APRM #6 instrument.
D2 D/W Feed Preventive W.R. #3!463 N/A N/A Repaired seal ring seating surface and Water Check replaced seal ring valve.
O Valve
/,U-2ARecirc.
Preventive W.R. #30374 N/A N/A Adjusted ;,acking to reduce leakage problem.
Pump Discharge Bypass
.l m -
m
l DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - DECEMBER, 1983 l_
t MA W NCTION NATURE OF LER OR OUTAGE EQUIPMFNT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION D3'Rx Head Preventive W.R. #29812 N/A N/A Removed Rx head after chemical cleaning of Rx recire, system.
p f#3 Diesel Preventive W.R. #29887 N/A N/A Performed quarterly inspection during i G2nerator September, 1983.
!U-3250V Preventive W.R. #27771 N/A N/A Performed U-3 250V battery discharge test.
Bitteries N/A N/A Replaced limit switch.
]
j 3-1501-26B Valve Preventive W.R. #28409 595-113C (Main Preventive W.R. #30929 N/A N/A Tightened relay.
l!RadRelay)
Steam Line Hi l
l l
l MCC 39-2 Cub Preventive W.R. #26525 N/A N/A Replaced relay.
6 C-2 i
{U-3 Diesel Preventive W.R. #28662 N/A N/A Replaced spider coupling.
I Generator j
U-3 "A" RPS MG Proventive W.R. #27995 N/A N/A Tested and calibrated breaker.
Set l
HPCI Area Temp.
Preventive W.R. #3077i N/A N/A Replaced temp. switch 3-2372B.
Sw. EPN TS 3-2372B Pri. Cont. Isol. Preventive W.R. #30926 N/A N/A Tightened relay.
[ Relay 595-104 A l EPN #3-595-104A I
a
o i
f' DRESDEN UNIT 3'
~ '
SAFETY RELATED MAINTENANCE - DECEMBER. '1983 i
MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION i
N/A N/A Tightened relay.
Relay 590-124 A Preventive W.R.-#30928
'(Turb. Stop lValveClosure rRelay)
Cooling Water Preventive W.R. #30006 N/A N/A Adjusted packing.
fReturnto
) Booster Pump i
jSuction jMO-2301-48 I' Steam Line Hi Preventive W.R. #30927 N/A N/A Tightened relay.
} Flow Relay l595-102C MSIV Logic Trip Preventive W.R. #30925 N/A N/A Tightened relay.
595-106A f' Relay EPN #3-595-106A 1
N/A N/A Tightened relay.
i Rx Vessel Low Preventive W.R. #30930 kWaterLevel Relay 590-105C EPH #3-509-105C 0 LPRM Cable Preventive W.R. #30715 N/A N/A Tightened all LPRM wire connectors.
Connectors in C.R.
SRMs Preventive W.R. #30719 N/A N/A Adjusted discriminator set points to set counts below 100 CPS.
T I
N/A N/A Checked relief valve setting.
l 3B SBLC Relief Preventive W.R. #27852 i Valve l
l
'I 1
I R
1 e,-m,,:- - m m.m.-
,7
,m,.-,r..m, mm--,mm
'M r
' DRESDEN UNIT 3
).
i SAFETY RELATED MAINTENANCE - DECEMBER. 1983 i
f l
l' M M CTION NATURE OF LER OR OUTAGE j
EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION iU-3 "B" RPS Preventive W.R. #27996' N/A N/A
- Tested and checked breaker.
pMG Set N/A N/A Adjusted N.S. trolley switch.
Refuel Grapple Preventive W.R. #30984 D3 HPCI Oil Prevertive W.R. #30842 N/A' N/A Welded brace bracket back on.
lTcnk i
iU-3 250V Preventive W.R. #30698 N/A N/A Replaced defective amplifier board -
, Battery Charger checked for proper charging rate and -
settings.
IAPRM Power Preventive W.R. #30856 N/A N/A Checked for proper type of 5 amp fuse -
! Supplies found improper one - replaced.
i
. U-3 D/G Output Preventive W.R. #31207 N/A N/A Cleaned contacts to insure proper opera-Breaker tion of breaker.
i I HPCI Weld Preventive W.R. #31067 N/A N/A Flapped weld to remove 1" linear indir:a-
) #2304/14-3 tion'- checked for proper wall thickness by UT - ok.
i
{LevelInstru-Preventive W.R. #30136 N/A N/A Calibrated and checked instrument for jmentation Wide proper operation.
Range Yarway Refuel Floor Preventive W.R. #31309 N/A N/A Replaced power supply connector and and Reactor installed voltage test plugs.
j Bldg. Vent lMonitorPower Supply l
,N
.7 7m_
--- r m w., -
_q+,
s
...~ma s n--=.
. mmp :MW y___
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=
DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - DECEMBER, 1983 i
NATURE OF LER OR OUTACE M CTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT.
CORRECTIVE ACTION Via Tren/ Rose-Preventive W.R. #31016 N/A
.N/A Backfilled chem. cleaning instrument and
- mount Chem.
performed valve line-up audit.
Cicening i
D3 A-SBLC Preventive W.R. #27853 N/A N/A Checked setting and operation of relief Rnlief Valve valve.
j U3 HFA Relays Preventive W.R. #2776I N/A N/A Visual inspection of loose parts and abnormal conditions. Loose studs and l
damaged covers noted and repaired.
'LPRM 3B 32-33 Preventive W.R. #29561 N/A N/A Investigated spiking problem - burned off i(APRM CH 3)
" whiskers" to resolve problem.
EPN #32-33-3B LPRM 3C 24-33 Preventive W.R. #29557 N/A N/A Investigated spiking problem - burned off (APRM CH 5)
" whiskers" to resolve problem.
LPRM 4B-32-25 Preventive W.R. #29558 N/A N/A Investigated spiking problem - burned off (APRM CH 5)
" whiskers" to resolve problem.
LPRM 08-25-B Preventive W.R. #29593 N/A N/A Investiga:ed instrument downscale problem.
Replaced a crimped connector and wire in back of cabinet.
t L
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l
SUMMARY
OF OPERATING EXPERIENCE UNIT TWO DECEMBER, 1983 12-1 to 12-25 Unit 2 entered the month at a power level of 729 MWe and operated continuously until the morning of the 25th when a chain of events caused the reactor to scram. The events were initiated when a large door stuck in the open position during the minus 20 degree winter weather. The instrumenta-tion for the reactor feed pumps froze causing the feed pumps to trip thus causing low reactor water level and subsequent scramming of the unit. The door was eventually closed, the instruments thawed out, and unit startup initiated.
12-25 to 12-31 The unit was returned to service after some difficulty.
Problems developed with the main generator output breaker and one feed pump developed pump seal problems. By the end of the month the unit reached a power level of 817 MWe with a capacity factor of 86.78% and an availability of 96.24%.
SUMMARY
OF OPERATING EXPERIENCE UNIT THREE DECEMBER, 1983 12-1 to-12-31 Unit 3 was shutdown for the entire month for its scheduled refueling and equipment overhaul outage. Major work includes:
1)
H.P. Turbine and main generator overhaul
- 2) Inaervice inspection of welds
- 3) ISHI of recire. pipe welds
- 4) LPRM removal and replacement
- 5) CRD removal and replacement 1
^N Commonwealth Edison
~2-
) Dresden Nuclear Power Station
.-. 4 R.R. # 1
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Morris, Illinois 80450 Telephone 815/942-2920 January 3, 1984 DJS LTR: 84-19 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, D. J. Scott Station Superintendent Dresden Nuclear Power Station DJS: BAS: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.
INPO Records Center Manager, Tech. Serv. Nuc. Sta.
Tech. Staff EA On-Site NRC Inspector Sta. Nuc. Eng. Dept.
PIP Coordinator - Sta. Nuc.
Comptroller's Office File /NRC Op. Data File / Numerical
?
6
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