What is a squirrel cage motor used for?
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. These motors are commonly used in: Centrifugal pumps.
How does a squirrel cage induction motor work?
Squirrel cage motors maximize electromagnetic induction by utilizing rotor bars to interact with the stator’s EMF. The stator usually contains windings of wire which carry an AC current; this current changes in sync with a sinusoidal curve (or “alternates”), which changes the current direction in the wire windings.
What is induction motor short definition?
Definition of induction motor : an alternating-current motor in which torque is produced by the reaction between a varying magnetic field generated in the stator and the current induced in the coils of the rotor.
What is squirrel cage induction generator?
The squirrel cage induction generator (SCIG) is attached to the wind turbine by means of a gearbox. The SCIG stator windings are connected to a back to back full power converter. The gearbox provides speed and torque conversions from a rotating power source to another device, using gear ratios.
What is the use of induction motor?
Induction machines are the most frequently-used type of motor used in residential, commercial, and industrial settings so far. In an induction motor, the electric current in the rotor needed to produce torque is obtained via electromagnetic induction from the rotating magnetic field of the stator winding.
What is a squirrel cage induction motor explain why it is called a squirrel cage?
Definition: Squirrel cage motor is one of the types of induction motors. In order to generate motion, it hardens electromagnetism. As the output shaft is connected to the rotor inner component which is looking like a cage. Hence it is called squirrel cage.
Why squirrel cage induction motor has low starting torque?
It suffers from the disadvantage of a low starting torque. It is because the rotor bars are permanently short-circuited and it is not possible to add any external resistance to the rotor circuit to have a large starting torque.
Why is squirrel cage induction motor preferred?
A synchronous motor may have a squirrel-cage winding embedded in its rotor, used to increase the motor starting torque and so decrease the time to accelerate to synchronous speed. The squirrel cage winding of a synchronous machine will generally be smaller than for an induction machine of similar rating.
What is the difference between squirrel cage rotor and wound-rotor What is the importance of slip in a 3 phase induction motor?
It can improve the power factor. In 3 phase squirrel cage induction motor, the rotor resistance starter is not used. In 3 phase slip ring induction motor, the rotor resistance starter is used. When low starting torque is required, the squirrel cage motor is used.
What is an induction in physics?
There are a variety of methods to charge an object. One method is known as induction. In the induction process, a charged object is brought near but not touched to a neutral conducting object. The presence of a charged object near a neutral conductor will force (or induce) electrons within the conductor to move.
What defect is found in squirrel cage motor?
Squirrel cage induction motor cast rotor defect detection with magnetic field analysis.