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MIRUS 5-13 Neutral Current Eliminator3-phase, 3-wire autotransformers with 30°, 15° or 20° phase shift between input and output. They are connected in series with the supply to variable frequency drives, UPS systems, and other 3-phase rectifier loads.By phase shifting against other similar loads, they reduce 5th and 7th or 11th and 13th harmonic currents at point of common coupling which, in turn, reduces voltage distortion as well.Features• Diverts the flow of harmonic currents away from neutral and upstream transformer• Reduces high neutral current and neutral-to-ground voltage• Eliminates the need for doable ampacity neutrals upstream• Reduces losses and lowers operating temperature in upstream distribution transformer• Substantially reduces primary winding circulating currents in distribution transformers• Reduces current distortion at UPS, generator or Utility service• Saves energy by reducing harmonic losses• Prevents voltage flat-topping caused by non-linear loads• Lowers voltage distortion to prevent premature equipment failure• Restores ride-through capability of computer equipment• Improves Power Factor• Integrated ammeter measures neutral current removed• Field adjustable impedance option offers improved application flexibility• Helps meet IEEE Standard 519 harmonic limits