Goodrive100-PV Series Solar Pumping VFD  Options and use 
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A.4 Reactors 
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 our technical support technicians. 
Output reactor model selection