Defining induction motor
An induction motor can be stated as a simple electric transformer which has 2 relatively movable portions. The magneticcircuit of this motor is divided by air gap. Between the 2 sections, one is carried to the secondary winding while the other is carried by the primary winding. When alternating current is supplied from a power system to that motor’s primary windings, which again induces a resisting current in the motor’s secondary winding. This happens when the secondary winding is either closed because of external resistivity or it being short circuited.
There is a key feature that helps in differentiating between other electrical motor types and induction machine. That feature relates the creation of secondary currents by induction itself instead of being dispensed by other power sources or D. C exciter.
In an induction motor, production of relative motion between secondary and primary structures is because of electromagnetic forces which are proportional to the power. Hence, this motion is transferred from the induction motor (across air gaps).
With torque characteristics are these induction motors are available for anindustrial application that suits for every load variety. There are 4 cases which can explain this machinery’s application.
There are mainly 8 benefits which make 3 phase induction motor highly sought motor in industrial areas. For an effective application, those benefits are: