We offer custom designed Air Core Reactors for high voltage, high current, high frequency, or high power applications such as current limiting, shunt reactors, neutral grounding reactors, linear chokes, or tuning. Winding configurations include helix wound, archimedean spiral wound (flat pancake), and multi-layer wound.Air Core Reactors can be supplied either as single-phase coils individually supported on insulators or alternatively as three phase coils stacked vertically.