International Research Publication House
Power transformer plays a vital role in power system. Everybody is aware of the scenario consumers face once a power transformer goes out of order, particularly in the country. Owing to its demand, power transformer needs most up-to-date protection scheme. Overcurrent relay, gas relay and differential relay are the three important relay for power transformer protection. Faults are basically two types - through fault and external fault. Inrush is not a fault. A power transformer is designed to handle large amounts of power (as the name implies) and usually converts voltages; they are used in power supplies and in electrical supply.