Are you wondering where the future of motor efficiency will take us? On June 1, 2016 the Integral Horsepower Rule, an expansion of the EISA 2010 U.S. Department of Energy rules, went into effect. These rules include more motor designs and push mandated efficiencies higher. As manufacturers move closer to IEC4 efficiencies, it appears that […]
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All bearings are subject to wear and damage, and the bearings inside of your AC induction motor are no exception. But are you aware of the fact that there is a potential electrical cause for bearing damage in a motor? There is – when motors are driven by VFDs (Variable Frequency Drives). Fortunately, appropriate motor […]
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Although short circuit current ratings (SCCRs) for variable frequency drives (VFDs) are widely discussed, many people are still unclear about what these ratings mean and why they are important. SCCRs concern safety issues dealing with prospective short circuit current (PSCC) at the point where a VFD is connected to an electrical power feed. SCCR refers […]
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Variable frequency drives (VFDs) have become very common in the industrial space and can improve your operations tremendously. That being said, they do not come without their own occasional challenges, and I hope to make you aware of potential downsides that can affect your applications.
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