Earthing Transformer

Earthing transformers are widely used in three phase power system networks to serve as artificial Neutral point in Three Phase Delta connected System. Other applications of earthing transformers includes connecting an arc suppression coil and to limit current level during earth fault. Proper grounding in the power source is preferred in several applications, as this provides additional safety for the equipment connected with the network and for the operator also. These transformers effectivelyprovide an easy low resistance path for the fault current, during the period of earth fault. This special Purpose Transformer is made of zigzag connection to derive a common neutral point which is further grounded via series current limiting reactor. With such connections, the three phase system is able to provide both line to ground(1-phase) and line to line (3-phase) power efficiently.