Schaffner now offers a new ecosine max passive harmonic filter series, designed to reliably mitigate excessive harmonics in most demanding applications.
The new ecosine max filter series FN3470/71, FN3480/81, FN3472/73 and FN3482/83 are based on Schaffner’s proven ecosine platform and are available with versions for 400VAC and 480VAC, and 50Hz and 60Hz networks.
They are a key passive power quality product for the higher power ranges (250KW-500KW) that can be found in demanding drive applications. The three-chokes versions FN3470/80/72/82 are designed to achieve <5% harmonic distortion current (THDi) at rated power even when using drives without DC-link choke. The more economical two-chokes versions FN3471/81/73/83 are designed to achieve <5% total THDi at rated power if used with drives including at least 4% DC-link choke. They can also be applied to drives without DC-link choke reaching a THDi of 8%.