What is the need for the starter? Name the kinds of DC machine starter. With the use of neat diagram demonstrate the working principle of 3 point starter.
Critically discuss the speed control of DC shunt and series motors.
Describe the transformer on no-load & load condition with the phasor diagram.
Derive the situation for the maximum efficiency in a transformer.
Illustrate the constructional details and working principle of 3-phase induction motor.