What is the purpose of providing a DC supply for an induction motor during starting and braking?
Purpose of Direct Current Power during StartupLimit the starting currentWhen an induction motor starts, if it is directly connected to an AC power supply, the rotor, being stationary, experiences a strong induced effect from the rotating magnetic field of the stator, resulting in a very large starting current.When a DC power supply is provided, it can alter the magnetic characteristics of the motor, thereby limiting the size of the starting current. For example, in some soft start devices, a spe