List of top Electrical Engineering Questions on Induction Motor

The frequency of the emf induced in the rotor circuit of a three phase. 50 Hz, 4 pole induction motor running at 1425 RPM is

The starting torque of a capacitor-start single-phase induction motor is:

If the air gap of an induction motor is increased, then,

A 4-pole, 50 Hz induction motor has a synchronous speed of:

In a Capacitor-start motor, main winding current is $2.0\text{ pu}$, auxiliary winding current is $2.0\text{ pu}$ and the phase difference is $90^\circ$. Then the starting torque is:

In an induction motor, maximum torque occurs when:

The pole changing method of speed control is only applicable to which type of motor?

A single phase induction motor is

A motor has synchronous speed of \(1000\ \text{rpm}\) and runs at \(950\ \text{rpm}\). If the torque at this slip is \(10\ \text{Nm}\). What is the torque if the slip is doubled? (assume low slip region)

In an Induction motor, the rotor copper loss is equal to

A 12-pole, 3-phase, 50 Hz induction motor runs at 475 rev/min. Determine the slip speed and frequency of the rotor currents.

The power supplied to a three phase induction motor is 32 kW and stator losses are 1200 W. The slip is 5%, determine the rotor copper loss.