Transformer is an electrical device designed to transfer electrical energy through electromagnetic induction. Transformers are used to increase/decrease the voltages of transformed alternating current (AC) in electrical power applications. There are many different types of transformers such as Audio Transformers, Power (distribution) Transformers, Pulse Transformers, Leakage Transformers, and Capacitor Transformers. Transformers are used in a variety of consumer applications such as washing machines, vacuum cleaners, and also in industrial applications involving power.