A transformer is an electric device is mainly designed to transfer energy from one circuit to another through electromagnetic induction. It basically steps up or steps down the voltage level as per the need without affecting the overall frequency level. As it has no moving parts, thus, it is considered as a static device. And this static device is made up of a number of parts or elements that perform different functions. Every single element of a transformer plays an important role in the overall working of the device and has its own features and functions. To know them better you should take a look below.