Three Phase Induction Motor Wikipedia. A 3 phase induction motor derives its name from the fact that the rotor current is induced by the magnetic field, instead of electrical connections. The main drawback of dc motors is the presence of commutator and brushes, which require frequent maint. Three phase induction motors are the widely used motors in the industry.
During operation, a current is applied through the stator, which induces a magnetic field and leads to the rotation of the rotor.
In this video, we discuss the functioning of a 3 phase induction motor. The operating principle of a 3 phase induction motor is based on the production of r.m.f. Squirrel cage induction motor and wound rotor induction motor based on the construction of rotor. Motor is of the totally enclosed type and is. An induction motor or asynchronous motor is an ac electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of. Once connected to the source, the currents in three coils will be balanced and. Though, the smaller sizes use less complex to build concentrated windings with salient poles. First of all, i am going to discuss about the construction of 3 phase induction motor and then i will throw some light on its working.
