Electronic/Communication Blogs

“Variable frequency drive”

What is the difference between a soft starter and a VFD (variable frequency drive) for electric motors?

The major difference between soft starter and VFD are as follows.   1. Soft starter is used to start and stop the motor smoothly., without jerk load.   2. The starting torque delivering capacity of the soft starter is poor as V/f ratio or the flux is much lower than the rated capacity o...