Electric motor drives are the basic assemblies used for the transformation of electrical power into mechanical energy. In simple words, the term "electric motor drive" is used to denote drives driven by electric motors.Types of Motors Used for Electric DrivesFollowing are the different types of motors used for industrial electric drives −DC series motorDC shunt motorCumulative compound DC motorSlip ring induction motorSquirrel cage induction motorDouble squirrel cage induction motorThree phase synchronous motorSingle-phase synchronous motorSingle-phase AC series motorRepulsion motorCapacitor-start induction-run motorCapacitor-start capacitor-run motorNow let's check in detail the applications of each of these motors.DC Shunt MotorDC shunt motor has medium starting ... Read More

Block Diagram of an AC LocomotiveThe following figure shows the block diagram of an AC locomotive.AC Locomotive - Function of Each PartThe working and function of each part of an AC locomotive is described below −The AC power at 25 kV is taken from the overhead conductor wire (called as catenary) through a pantograph and this high voltage supply is fed to a step–down transformer (provided with on load tap changer) installed in the locomotive itself, which converts the high voltage AC supply to low voltage AC supply.This low voltage AC supply obtained from the transformer is then converted into ... Read More