This document is a technical guide for the Eliminator™ Series Electromagnetic Harmonic Filters. It describes the features and benefits of the products, including diverting harmonic currents from the neutral conductor and supply transformer, reducing voltage distortion caused by harmonic currents, reducing high neutral current and neutral-to-ground voltage, and reducing the harmful effect of VFD harmonic currents.
The document introduces the Mirus Eliminator™ Series, a line of passive electromagnetic devices designed to mitigate harmonics in electrical power systems. These products address issues caused by non-linear loads such as personal computers, variable speed drives, and UPS systems.
Three main product types are described: the Neutral Current Eliminator (NCE) for diverting triplen harmonic currents; the Combined Neutral Current Eliminator (CNCE) which combines filtering with phase shifting to treat 5th and 7th harmonics; and the 5-7, 5-13 & 11-13 Eliminators for controlling specific harmonics in 3-wire circuits.
The products resolve overloaded neutral conductors, overheated distribution transformers, high neutral-to-ground voltage, poor power factor, and distortion of the voltage waveform.
The NCE is a parallel-connected device that removes 3rd and 9th harmonic currents as well as other zero sequence currents from the neutral conductor.
The CNCE is a series-connected device that combines neutral current filtering with a phase shift to treat 5th and 7th harmonic currents in addition to triplen harmonics.