Inrush Current in Transformer And Its Mitigation

Power Transformer is most expensive apparatus of electrical power system. When Power transformer is energized from the de energized state, it experiences a large amount of current which is known as inrush current. Inrush current impacts on winding of transformer, causes of generation of harmonics and related Problems of power quality. Here, the effects of inrush current on power system and types of inrush current are elaborated. Also methods for the inrush current mitigation by suitable means are discussed.