A Key inductor with reasonably large impedance blocks bigger order harmonics, and also a shunt-linked tuned reactor is linked that has a capacitor to mitigate the fifth and 7th harmonics. VFD designers and brands have addressed these concerns in alternative ways, many of them proprietary. Engineering impacts of the above http://benefits-of-dru-yoga93567.tinyblogging.com/New-Step-by-Step-Map-For-Passive-Harmonic-40797800