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Contact SupplierAn active harmonic filter is something like a boost regulator. The concept used in an active filter is the introduction of current components using power electronics to remove the harmonic distortions produced by the non-linear load. Active harmonic filters are mostly used for low-voltage networks.
There are three types of active harmonic filters based on the way they are connected to the AC distribution network.
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Apart from the above classification, active harmonic filters can be either 3-wire or 4-wire filters. | |||||||||||
3-WIRE FILTERS: Are power units that are large and typically used in variable speed drives and other such applications, which have a large number of non-linear loads. 4-WIRE FILTERS: Are those that can filter the neutral conductor of the triple-n harmonics. These filters are used to eliminate harmonics that are generated by switch-mode power supplies and Information Technology equipment, typically commercial applications. |