Minimize the distance from the drive to the motor.
If the VFD is run much at a single speed, arcing through the bearings in the same place can deteriorate them. Use insulated bearings or shaft ground bushings.
Make sure motors can handle 3.1 times the line voltage at a 0.1 microsecond rise time.
In constant-torque applications, at too low a speed, a TEFC motor will overheat. Define your parameters to avoid this.
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