what is earthing transformer
Earthing transformers. Earthing transformers are classified as standard reactors. An earthing transformer (neutral coupler) is a three-phase transformer connected to the power system to provide a neutral connection for earthing, either directly or via impedance.The earthing transformers may in addition supply a local auxiliary load.The earthing transformer creates a neutral point for a network.n earthing transformer (neutral coupler) is a three-phase transformer connected to the power system to provide a neutral connection for earthing, either directly or via impedance.