Reactors - INVT Goodrive350-19 Series Operation Manual

Goodrive350-19 series VFD
VFD model
GD350-19-315G-6
GD350-19-355G-6
GD350-19-400G-6
GD350-19-450G-6
GD350-19-500G-6
GD350-19-560G-6
GD350-19-630G-6
Note: The accessory specifications described in the preceding table are ideal values. You can select
accessories based on the actual market conditions, but try not to use those with lower values.
D.7 Reactors
When the grid voltage is high, the transient large current that flows into the input power circuit may
damage rectifier components. You need to configure an AC reactor on the input side, which can also
improve the current adjustment coefficient on the input side.
When the distance between the VFD and motor is longer than 50 m, the parasitic capacitance
between the long cable and ground may cause large leakage current, and overcurrent protection of
the VFD 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 a VFD 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 VFD. If the distance between the VFD 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 technical
support.
External DC reactors can be connected to VFDs of 380 V 132 kW or higher, and of 660V series. DC
reactors can improve the power factor, avoid damage to bridge rectifiers caused due to large input
current of the VFD 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.
Breaker
Fuse (A)
(A)
1110 630
1110 630
1230 800
1470 960
1500 1000
1740 1200
2010 1380
-515-
Optional peripheral accessories
Contactor rated current
(A)
580
580
630
735
780
900
1035