Electric motor refers to an electrical machine that converts electrical energy into mechanical energy. It works on the principle of electromagnetism and currently represents the biggest consumer of electricity in modern society. Electric motor is considered of great significance as it finds innumerable applications across a wide range of industries. It is used in pumps, industrial fans, lathe machines, compressors, machine tools, disk drives, domestic appliances, power tools, oil & gas, electric vehicles, cement & manufacturing, automated robots, railways, aerospace, mining & metals, chemicals & petrochemicals, utilities as well in heating, ventilation and air conditioning applications.