Goodrive350 series high-performance multi-function inverter Appendix D
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the inverter may be frequently triggered. To prevent this from happening and avoid damage to the
motor insulator, compensation must be made by adding an output reactor. When an inverter is used
to drive multiple motors, take the total length of the motor cables (that is, sum of the lengths of the
motor cables) into account. When the total length is longer than 50 m, an output reactor must be
added on the output side of the inverter. If the distance between the inverter and motor is 50 m to 100
m, select the reactor according to the following table. If the distance is longer than 100 m, contact
INVT's technical support technicians.
DC reactors can be directly connected to inverters of 380 V, 132 kW or higher and the 660 V series.
DC reactors can improve the power factor, avoid damage to bridge rectifiers caused due to large input
current of the inverter when large-capacity transformers are connected, and also avoid damage to the
rectification circuit caused due to harmonics generated by grid voltage transients or phase-control
loads.
Input reactor DC reactor Output reactor
D.6.1 Reactors for AC 3PH 380V (-15%)–440V (+10%)
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