6-8
Engineering Guide CDA3000
6 Selection of supplementary components
6.2
Motor choke
6.2.1 Technical data
of the motor
chokes
Function
Effect
•
Insertion of the motor choke between
the inverter module and the standard
three-phase AC motor improves the
operating conditions and reduces leak-
age currents and faults.
•
Reduction of leakage currents
•
Reduction of rate of rise of voltage du/
dt at the motor terminals
•
Suppression of faults caused by
switching in the motor cable
•
Increase in motor cable length
Characteristic
Motor choke
MR32.xxx
[3x230 V]
Motor choke
MR34.xxx
[3x400/460 V]
Table 6.6
Technical data of the motor chokes
Inverter
module
Inverter
rated
power
Line choke with 4% U
K
Type
Rated
current
Power
loss
Dimensions
HxWxD
[mm]
CDA34.003
CDA34.004
CDA34.005
CDA34.006
CDA34.008
CDA34.010
Table 6.7
Technical data of line choke with 4% UK
Not
ava
ilab
le
at t
ime
of
goin
g to
pre
ss.
Not
ava
ilab
le
at t
ime
of
goin
g to
pre
ss.