What is difference between squirrel cage and wound rotor?

What is difference between squirrel cage and wound rotor?

Difference squirrel cage rotor and wound or slip cage rotor This rotor is in the form of bars which are shorted at the end with the help of end rings. In squirrel cage rotor no slip rings or brushes. In wound or slip rotor slip rings and brushes are used. It has a simple construction.

What are the advantages of slip ring induction motor over squirrel cage?

Slip ring induction motor have big advantage of having high starting torque compared to squirrel cage motor. Therefore slip ring induction motors are generally employed where load requires high starting torque or good speed control.

Do squirrel cage induction motors have slip rings?

Construction of squirrel cage motor is simple and robust. Squirrel cage induction motor has high starting current. External resistance cannot be added since the rotor bars of squirrel cage induction motor are short circuited by end rings. Slip rings and brushes are not present.

What is slip in squirrel cage induction motor?

The slip is the difference in rotor speed relative to that of the synchronous speed.

Which is better squirrel cage or slip ring?

The slip ring motor has brushes for transferring the power whereas the squirrel cage motor is brushless. The copper loss in the phase wound motor is high as compared to squirrel cage motor. The efficiency of the slip ring motor is low whereas the squirrel cage motor has high efficiency.

What is slip ring in induction motor?

A wound-rotor motor, also known as slip ring-rotor motor, is a type of induction motor where the rotor windings are connected through slip rings to external resistance. Adjusting the resistance allows control of the speed/torque characteristic of the motor. Each pole is wired in series with a variable power resistor.

Which is better slip ring or squirrel cage?

Why is squirrel cage induction motor preferred?

Advantages of Squirrel Cage Induction Motor They are low cost. Require less maintenance (as there are no slip rings or brushes) Good speed regulation (they are able to maintain a constant speed) High efficiency in converting electrical energy to mechanical energy (while running, not during startup)

What is the use of slip ring?

A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure. A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals.

Do induction motors have slip rings?

A wound-rotor motor, also known as slip ring-rotor motor, is a type of induction motor where the rotor windings are connected through slip rings to external resistance. Adjusting the resistance allows control of the speed/torque characteristic of the motor.

Why squirrel cage rotor is used in induction motor?

Squirrel cage induction motors are commonly used in many industrial applications. They are particularly suited for applications where the motor must maintain a constant speed, be self-starting, or there is a desire for low maintenance.