Learning Center

Why Should You Use a Line Reactor?

By Yin on 30th Jun 2014

Why do our engineers recommend line reactors? After reading about How will line reactors help your VFD and What is a line reactor, you probably already have an idea how line reactors can help your VFD. Here are the reasons why o …

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How Do VFDs Save Energy (Video)?

By Craig Hartman on 27th Jun 2014

Video TranscriptToday we are going to talk about how VFDs save energy.I’d like to refer to the diagram on the screen. This is a diagram that shows a typical fan application. Let’s say in a commercial building, the bott …

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How Will Line Reactors Help Your Variable Frequency Drive?

By Yin on 24th Jun 2014

The problem:While VFD's provide great advantages in energy savings and increased efficiency, they are the #1 cause of electrical power system pollution. Reactors have become the most common means of reducing this pollution (or dir …

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What is a Variable Frequency Drive (Video)?

By Yin on 20th Jun 2014

Video TranscriptToday we are going to talk about what is a VFD.In the 1880s, we saw the introduction of three-phase AC power. This was a marvelous invention by the great scientist Nikola Tesla. And running on that thre …

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What is a Line Reactor?

By Yin on 13th Jun 2014

A line reactor (also referred to as a "choke") is a variable frequency drive (VFD) accessory that consists of a coil of wire that forms a magnetic field as current flows through it. This magnetic field limits the rate of rise of t …

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Variable Frequency Drive Harmonic Mitigation

By Craig Hartman on 21st Mar 2014

Table of Contents Background of Harmonics IEEE 519 - Recommended Practices for Harmonic Control Effects of Harmonics Types of Harmonic Mitigation Equipment Harmonic Mitigation Cost Measurement Considerations Re …

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