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PowlVac 01.4IB.50032C
Powell PowlVac 01.4IB.50032C User Manual
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01.4IB
.50032C P
o
wlV
ac® DHP 15kV
Replac
ement
V
acuum Circuit Br
eaker
Replacement f
or
W
estinghouse
T
ype DHP
Air-Magnetic Cir
cuit Breaker
Powe
red
by
Safet
y
®
2
Table of Contents
Table of Contents
4
Ch 1 General Information
8
S Cope
9
P Urpose
9
I Nstruction B Ulletins a Vailable E Lectronically
9
Associated I Nstruction B Ulletins
9
Ch 2 Safety
10
S Afe W Ork C Ondition
10
S Afety G Uidelines
10
G Eneral
11
S Pecific
11
X-R Ays
12
S Afety L Abels
12
Ch 3 Equipment Description
13
G Eneral
13
T He S Tored E Nergy M Echanism
13
Mechanical Description
13
Figure 1 Powlvac® DHP Replacement Circuit Breaker - Front View
14
Figure 2 Powlvac® DHP Replacement Circuit Breaker - Front Cover Removed
15
Figure 3 Powlvac® DHP Replacement Circuit Breaker Mechanism
16
Figure 4 Powlvac® DHP Replacement Circuit Breaker - Rear View
17
Figure 5 Cam and Fundamental Linkage Positions
19
Figure 6 Mechanism and Trip Linkages
20
Electrical Description
22
Figure 7 Operation Sequence
23
Figure 8 Typical Control Scemes
24
Acking M Echanism
25
General Description
25
Figure 9 Racking Device and Interlock
26
Moc (M Echanism O Perated C Ell Switch ) a Ctuator
28
R Ollout T Ruck
28
S Econdary Ontacts
28
G Round C Ontact
29
S Hutter R Ollers
29
Acuum I Nterrupters
29
Ch 4 Installation
30
R Eceiving
30
Andling
30
S Torage
30
P Lacing the C Ircuit B Reaker into S Ervice
31
High Voltage Insulation Integrity
31
Table a Field Dielectric Test Values
32
Vacuum Integrity
33
Control Voltage Insulation Integrity
34
Mechanical Operation Check
34
Electrical Operation Check
35
Dimensional Check
35
I Nserting the Ircuit Reaker Nto the Ircuit Reaker Ompartment
36
Prior to Inserting the Circuit Breaker into the Circuit Breaker Compartment
36
Inserting the Circuit Breaker to the Test/Disconnected Position
37
Inserting the Circuit Breaker to the Connected Position
38
C Ompartment
39
Circuit Breaker Compartment
39
Ch 5 Maintenance
40
G Eneral
40
Introduction
40
Inspection and Cleaning
41
M Echanism a Rea
41
Mechanical Operation
41
Lubrication
42
Table B Lubrication
42
Figure 10 Lubrication
44
Figure 11 Lubrication (Cont)
45
Closing Spring Removal
46
Figure 12 Main Closing Spring Assembly Compressed for Removal
46
Figure 13 Main Closing Spring Assembly Installed
46
Mechanism Adjustments
47
Slow Closing of Mechanism
47
Figure 14 Primary & Secondary Trip Prop Adjustment
48
Figure 15 Latch Check Switch Adjustment
49
Acuum I Nterrupter and C Ontact a Rea
50
Vacuum Interrupter and Contact Erosion
50
Sliding Contact Wear
51
Vacuum Integrity
51
Mechanical Adjustment of Vacuum Interrupters
51
Electrical Operation
50
O Ptional Maintenance P Rocedures
51
High Potential Tests
51
Timing
51
Table C Timing
51
Primary Resistance Check
52
Table D Primary Resistance
52
Ch 6 Recommended Renewal Parts and Replacement Procedures
53
O Rdering I Nstructions
53
R Ecommended R Enewal P Arts
53
Vacuum Interrupter Assembly
53
Figure 16 Tension Relieved on Opening Springs
54
Figure 17 Operating Pin Removal
54
Figure 18 Lower Contact Block Setting
55
Figure 19 Bell Crank Removal
56
Figure 20 Operating Yoke Setting
56
Sliding Contact Finger Assembly
58
Closing Coil Assembly
58
Primary Shunt Trip Coil Assembly
58
Secondary Shunt Trip Coil Assembly
58
Undervoltage Device Assembly (UV)
58
Charging Motor Assembly
58
Anti-Pump Relay Assembly
58
Latch Check Switch
58
Motor Cutoff Switch Assembly
59
Auxiliary Switch
59
Figure 21 Primary Current Path
60
Table E Primary Current Path
60
Table F Control Devices
61
Figure 22 Control Devices
62
Table G Miscellaneous Parts
63
4
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Powell PowlVac 01.4IB.50032C Specifications
General
Category
Circuit breakers
Model
PowlVac 01.4IB.50032C
Rated Current
3200 A
Type
Vacuum Circuit Breaker
Trip Unit
Electronic
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