In order to transform the present alternative energy, transformers are used. It can be stated as the functionality of this machine which converts one type of voltage to another type of voltage. Its operation is based on principal of mutual inductance. This inductance takes place between inductively coupled coils which are more than 2 in number.
The ratio of secondary voltage =ratio of primary voltage. This is known as transformation ratio and is denoted by ‘K.’
To achieve near full load or to achieve maximum efficiency, a specific design of distribution transformer is required.
On removing a specific power of rated load, any conversion in secondary voltage is because of,
Auto transformer is defined as a machine whose certain winding part is common for both the secondary and the primary circuit.