AuCom MVE series User Manual page 25

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INSTALLATION
Transient/ Overvoltage Protection
Overvoltage protection should be installed if there is a risk of high voltage transients at the installation. Contact your local supplier
for details.
Line Inductors
Output line inductors may be required depending on various factors, including the soft starter model, the system operating voltage,
the cable type, and the length of the cable run between the soft starter and the motor.
If required, line inductors are typically installed in a shielded caged enclosure at the soft starter end of the motor cable.
To find out if line inductors are required for your specific installation, contact your local supplier for advice. You will need to provide
information about the motor output cable, including the cable length and its capacitance per km.
Power Circuit Configuration
MVE power circuit with main contactor, bypass contactor, main isolator/ earth switch, R Rated fuses and current transformers.
MVE must be installed with backup/R-rated fuses.
1
5
4
1
Soft starter panel
A1-1 ~ A1-3
Phase arms 1 ~ 3
2
Current transformers (refer to
Panel Wiring
3
Motor cables
4
Three-phase supply
5
Supply cables
6
Panel earth bar
QM
Main isolator / Earth switch
disconnector
24
| MVE User Manual (710-17074-00G)
L3
L2
L1
L3
A1-3
L2
A1-2
L1
A1-1
L3
L2
L1
6
E
L3B
T3
1
L3A
L3
L2B
T2
1
L2A
L2
L1B
T1
1
L1A
L1
QM
Internal
on page 27)
T3
T2
T1
K2
2
S1
S2
T3
P1
P2
CT3
S1
S2
T2
P1
P2
CT2
S1
S2
T1
P1
P2
CT1
T3
T2
T1
K1
7
2
F3
2
F2
2
F1
L1-L3
Input power terminals (supply side)
T1-T3
Output power terminals (motor side)
7
Fuses (F1-3)
K1
Main contactor
K2
Bypass contactor
W1
T3
M
3
V1
T2
U1
T1
3

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