VFD | Electrical mastar

Difference between DOL, Star Delta, VFD and Soft starter

Difference between DOL, star delta, vfd and soft starter: The difference between DOL- direct online starter ,star delta, vfd, and soft starter is explained below with operation diagram and their uses in different applications. DOL-Direct on line Starter: here the starting current will be 6 times of full load current. A bimetallic thermal overload relay…

What is a Variable Frequency Drive?

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, micro drive, and inverter. Frequency (or hertz) is directly related to…