Variable frequency drives (VFDs) are one of the  most efficient methods of controlling motors which are usually designed  to operate at a single speed. Depending on the VFD and how it is  installed, a VFD operates on single and 3-phase input and the output of  the desired voltages. Because the motors are generally designed with a  single operating speed, the VFD is required to alter the speed of the  motor.

Though 3-phases VFD is a form  of transport, it’s composed of 3 AC power potentials that have the same  frequency. It is ideal to find a 3-phase variable frequency drive  manufacturer that manufactures high-quality VFDs for large industrial  uses. 3-phase VFD is usually used in large industries, factories, and  manufacturing units, where a large amount of power is required. Below,  we will know how to connect VFD to a 3-phase motor:

Understanding a Variable Speed Drive

There  is a layer of control between the input and output functions of a VFD.  The control panel of the VFD acts as an interface that converts AC input  to DC current and then simulates AC output using a conversion process  known as a PWM (Power Width Modulation). Since the output is conditioned  by the VFD, the input power doesn’t have to match the desired output.

VFD and Single Phase Input

It  is not necessary to have 3-phase electrical input for operating a  3-phase motor with a VFD. The electronics of the VFD will step-up  single-phase current during the conversion process. For doing this, the  input power is first converted to DC current and then converted to the  desired output. A 3-phase motor simple attaches to the appropriate  output connectors of the VFD.

VFD and 3-phase Input

When  3-phase input is used, the wiring needs to be processed through an  inverter to produce DC current. The wiring is similar to single-phase  input, with the concessions of multiple indications being inverted. The  mechanical process of the VFD remains the same, and the output is  controlled by the VFD. For avoiding the complications and reduce errors,  you should enlist the assistance of a professional motor and control  technician during the installation process.

Consult  and take help of a 3-phase variable frequency drive manufacturer that  supplies the best quality of VFD for large industries for maximizing  your usage of the drive and get high efficiency in result.