DC Motor Starter is an additional external device which is required to be connected along with a dc motor, in order to start the motor in a safe manner. That means starting a dc motor without a starter is not safe for the motor. So we should understand the need of starter (Fig. 1). Fig. […]
DC Motor Starter – Need, Working Principle, Diagram, Need & Types Read More »
The constructional details of a three point starter are shown in Fig. 1. This is called as a three point starter because three points L, A and F are brought out for the external connections.
What is a 3 Point Starter? Working Principle, Construction, Diagram & Disadvantage Read More »
There are many configurations of ac synchronous motors in which semiconductor control is used for controlling the stator currents in such a way that maximum torque is obtained at a given speed. Such configurations can be termed as brushless dc motors (or BLDC motors). Fig. 1: Construction of BLDC motor.
Variable reluctance stepper motor employs the principle of minimum reluctance path i.e. the magnetic circuit gets completed by the flux taking the minimum reluctance path, just as in electric circuit, the current takes the minimum resistance path. Depending on the stator excitations the motor aligns itself so as to provide a minimum reluctance path for
What is Variable Reluctance Stepper Motor? Working, Diagram & Construction Read More »
Synchronous Motor needs initial starting torque. For this purpose different methods can be used.
Synchronous Motor Starting Methods Read More »