3 phase induction motors have many applications – used in flour mills to grind, as coolant pumps in power plants, in cooling fans of alternators and other large machines, in an electric train engine, rolling mills, and printing machines. Because it runs at a speed that is not synchronous, it is also called an asynchronous motor.
Between the three-phase squirrel cage induction motor and phase wound induction motor, the former is used widely as industrial drives because it is reliable, economical, and rugged.
Three phase induction motors are generally low cost and low maintenance with a good power factor and high efficiency. Because the motor is self-starting, it does not require special starting arrangements or the use of an extra starting motor.
The downside of this type of induction motor, however, is that it works similarly like a DC shunt motor where speed decreases as load increases. If there is a need to vary the speed, its efficiency has to be sacrificed as well.
Looking for a 3 phase induction motor to use for your project?
In Australia, you will find plenty of distributors of electric motors but only a few offers service and expertise with their choice of product brands similar to what Edington Agencies provide. This makes them the best source of 3 phase induction motors Australia offers.
Inside the Three-Phase Induction Motors
An induction motor is made up of a stator and rotor, the stationary part and the rotating part, respectively.
The rotor is connected to the mechanical load via the shaft of an induction motor. It is further classified as a squirrel cage rotor and a slip ring rotor which is also called wound rotor and phase wound rotor. Click here EDINGTON AGENCIES
The type of rotor used will define the classification of a 3 phase induction motor.
The stator of 3 phase induction motors consists of three main parts – stator frame, stator core, and stator winding or field winding.
- Stator frame
As the outermost part of a 3 phase induction motor, a stator frame acts as a cover of all the inner parts of a machine and provides protection and chemical strength. Its main function is to support the field winding and the stator core. Because of this, it has to be built very strong and rigid to keep air gap length small and the magnetic pull balanced.
- Stator core
Housed in a stator frame, its main function is to carry alternating flux that can result in eddy current losses and hysteresis loss. To prevent this from happening, the stator core must be laminated and made of silicon steel.
- Stator Winding
Refers to the three-phase winding that is plotted in the periphery of the stator core of an induction motor. Depending on the starting method used, the winding is either connected in star or delta.
The three-phase AC supplies power to the winding and will produce a rotating magnetic field when excited.
How to Find 3 Phase Induction Motors Australia Offers
Get 3 phase induction motors in Australia from Edington Agencies, a company specialising in electric motors’ distribution, as well as other related products. Carrying a variety of brands, you will have plenty of 3 phase induction motors to choose from. Visit http://edingtonagencies.com.au/3-phase-induction-motors