Learning Center

7 Questions to Ask When Buying a VFD Control Panel

By Yin on 23rd Jul 2014

Do you know how to find a quality enclosed VFD control panel? Here are 7 questions you need to ask yourself (and your supplier) before buying a VFD control panel: 1. Do you have the right VFD for the job? When sizing …

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Shaft Grounding Rings - The Necessary Accessory for Your Motor and VFD

By Dan Hansen on 14th Jul 2014

Why do you need a shaft grounding ring (SGR)? Motors that are operated with a variable frequency drive (VFD) are more susceptible to bearing failure. In standard generated sine waves, the voltage is balanced; this means that t …

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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 23rd 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 19th 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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