ABSTRACT
This chapter discusses construction aspects and operation principles of induction machines (IMs). It introduces the main parts of IMs and the principles of electromagnetic induction (Faraday law) in producing electromagnetic force on rotor made of a cage or two- or three-phase A.C. winding (coil) placed in slotted laminated silicon iron core. The main parts of any IM are as follows: the stator slotted magnetic core, the stator electric winding, the rotor slotted magnetic core, the rotor electric winding, the rotor shaft, the stator frame with bearings, the cooling system, and the terminal box. The IMs may be classified in many ways: with rotary or linear motion, three-phase or single-phase supply, and with wound or cage rotor. The rotor of IMs is provided with single- or double-cage windings, besides typical three-phase windings on wound rotors. In principle, for each rotary IM, there is a linear motion counterpart.
