Frequency Inverter

Also called Frequency Converter, it's a power conversion device running at mains power (60Hz / 50Hz). The frequency inverter converts a basic fixed frequency (50Hz/60Hz), fixed voltage (220V/380V/480V etc.) to a variable frequency (maximum frequency up to 400Hz), variable voltage (maximum voltage equal to input voltage) to control AC motor speed.

Frequency converter

takes advantage of controlling AC motor in variable speed for energy saving. If you gain an understanding of frequency and how AC motor is wound you will find that understanding the frequency inverter will be quite straight forward.

Nowadays, frequency converters are widely used in many variable frequency systems, such as mechanical drive systems and control systems. It is important to improve the control strategy to make the frequency inverter adaptable to different situations.

What's New?

Frequency Converter 50Hz to 60Hz Design

It is easy to convert voltage using a transformer or maybe a switching adapter but it is not so easy to change frequency. After some search I found there exist frequency converters but they are very expensive professional equipment, not gadgets for the traveler, so I set out to design and build one myself. The power this frequency converter can output ...

Can a 60Hz motor run on 50Hz power supply?

As standard all industrial motors designed for both IEC and US system voltages/frequency supply: 400V/50Hz or 460V/60Hz. The power supply difference between 50Hz and 60Hz usually 20% - nominal power at 60Hz higher by 20% of 50Hz power supply. The data can be found on motor nameplate. The ratio of applied voltage to applied frequency (V/Hz) should ...

The use of Bypass with Frequency converter

Practice in some frequency converter applications has been to specify and install a bypass that allows the motor to operate on line power in the event of a failure of the frequency converter. This paper will explore the history of the bypass solution, as well as the advantages and disadvantages of the practice of installing a bypass.A bypass can be supplied ...

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