The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...
Ana Mircevska shares what variable frequency drives are and how they can help optimize energy efficiency in this article. After reading the article, test your knowledge on VFDs with this quiz.
Improperly terminated VFD cables can generate up to 60 amps of common mode current spikes through facility ground grids, damaging unconnected control and communication equipment. Most electricians ...
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