Learning Center

What pulse VFD should you be using?

By Tyler Simmons on 31st Mar 2023

Should you use 6-pulse, 12-pulse, or 18-pulse VFDs? Explaining pulses in VFDs and what technologies you should consider Specifications for variable frequency drives are often too complicated. You may feel lost and not understand e …

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VFDs and Harmonics – Why You Should Care

By Tyler Simmons on 11th Mar 2021

What Problems Can Come With VFDs?  Most people that buy and use a variable frequency drive (VFD) are aware of the benefits they offer, such as speed control over their motor application or energy savings. What most people don …

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12-Pulse & 18-Pulse Variable Frequency Drives

By Tyler Simmons on 23rd Dec 2020

Overview With harmonic distortion becoming more of a problem every day, folks are looking for cost-effective means of harmonic mitigation. Manufacturers are more than happy to provide solutions, but with so many methods available, …

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Active Harmonic Filters - Noise-Canceling Headphones for Your Power System

By Jeff Noxon on 8th Aug 2020

AHFs are inActive harmonic filters (AHFs) have gained a lot of traction in the last couple of years. In the past, high costs meant that active harmonic mitigation methods were reserved for extremely large/complex applications with …

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Case Study: Solving Motor Inrush Current and Energy Savings with VFDs

By Craig Hartman on 20th Mar 2015

Tensions resolved between utility company and local community by replacing soft start with VFD to correct voltage sags due to medium voltage compressor starts A large land fill energy producer in Chicago faced a&nbs …

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How Will Line Reactors Help Your Variable Frequency Drive?

By Yin on 23rd Jun 2014

Updated on October 23rd 2025 While VFD's provide great advantages in process control and energy savings, they are also the largest cause of electrical power system pollution. Reactors have become a most common means of reducing th …

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