Construction
rotor: The rotating motor part is known as the rotor. The core of the rotor and the rotor winding form the rotor part, and consists of
(rotor winding – rotor iron core – shaft)
stator: The stator represents the motor's static portion. The stator's principal task is to produce the rotates magnetic field, and consists of:
Stator frame: This is the outermost component of the three-phase motor induction. its main function is to support the state, core, and winding.
Stator core: The stator core 's principal function is to carry alternating flux. The stator core is laminated to minimize eddy current losses.
Stator winding: The three winding phases are connected either in star or delta, when this winding is excited by three-phase ac supply it produces RMF (Rotating Magnetic field).Coils are placed in the slots to form a winding of three or a single phase. Insulated copper or aluminum wire wound around the iron cores in coils.
The three-phase set of currents, each of the same magnitude and with a phase difference of 120 °, will flow in the windings of the stator and generate a rotating field of constant magnitude
applications industrial induction motors.
- Drilling machines
- Mills, conveyors, elevators, separators, etc.
- Pumps
- Blowers
- Machine tools
- Tesla Cars (Electric Car)
- Electric Train Engine
Conclusion :
In these papers, we talked about the importance of the three-phase induction motor and its different types (of squirrel cage motor and wound rotator motor).
In addition, we talked about: the induction motor construction, the kinetic theory of theory, and the equivalent circuit for the induction motor. Then at the end, some industrial applications of the induction motor are mentioned.
References:
[1]. M. G.Say, “alternating current machines”, Pitman Press 1976.
[2]. P. L. Alger, “The nature of induction machines”,Gordon and Breach 1965.
[3]. B .V. Jayawant, “Induction machines”, McGraw-Hill1968
[4]. J.Hindmarsh, “Electrical machines and their applications”,
Pergamon press,1977.
[5]. A.Draper, “electrical machines”,longman,1967
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