How to Convert Single Phase into Three Phase VFD for Your Industrial Application

Variable frequency drive increases quality control in the wide range of industrial manufacturing world by monitoring the speed, pressure, temperature, torque, and tension of electric motor. And it can also be used to convert a single-phase into three-phase.

Variable Frequency drive contains a solid-state component, which is designed for converting single-phase power to three-phase power in the electric motor. There are many 3 phase variable frequency drive manufacturers that design 208-240 volt single phase input to three-phase output but only up to approximately three horsepower. Below, I'm going to share how to convert single phase VFD into three-phase.

Rotary Phase Converters vs. Variable Frequency Drives

A rotary phase converter is not an ideal solution for converting single phase VFD to three phases, because this is old technology. And they have moving parts, are typically heavy and make a lot of noise. This process can be expensive during the entire time and the rotary phase is converting, regardless of whether any machinery is being used. The current might be balanced when specific machinery is running, but if few machines are in commission, or all of them are heavily loaded, the three-phase power, current, and voltage is drastically unbalanced.

VFD is the best solution for converting a single phase into three phases because it has solid-state components that mean it has no moving parts. Since it has no moving parts, there is less wear and tear that means the lifespan of the variable frequency drive exceeds the lifespan of a rotary phase converter by far. It generally doesn't make noise while operating, and it is also compact and lightweight.

How To Convert Single Phase to Three Phase Using VFD?

Using a variable frequency drive is designed for converting a single phase into three phases. VFD (Variable Frequency Drive) is generally capable of converting phase power into three phase power for electric motor applications.

A VFD rectifies each pair of phases to DC and inverts the direct current to the power for the three phase output that means a variable frequency can be used with single phase input for operating a three phase motor. It is highly recommended for the users to work with the drive manufacturer in selecting and sizing the VFD for this use.

And also rather than buying an expensive single phase motor, changing the controls, and dealing with the speed control and starting torque issues, this is a good idea to use VFD for operating the existing motor from single-phase power. For many applications, a suitable variable frequency drive can be purchased for far less than the cost of rewinding a three-phase and proving the essential controls for operating it.

The added benefits are that a three phase motor is generally less expensive for buying, the controls don't require replacement or modification and the VFD has the value-added benefits of providing speed control.

Conclusion:

Three-phase VFDs are designed to run on the three-phase alternating current power that is mainly used in many industrial applications. You can find a reliable 3 phase variable frequency drive manufacturer for buying high-quality products to meet your specific needs.

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