TRACTION MOTOR

                                                                 

                                                                             

Most of all the traction system in world use electrical series motors because series motors has high starting torque and easily to control the speed of the motor. But in hill type railway system induction motors are used because in hill type traction we want regenerative braking.In this type traction dc motors do not support the regenerative braking system due to this problem we use the induction motors.Electrical Induction motors are supports the regenerative braking system i.e slip is negative in this condition.