An electric motor is an advanced rotary electric machine designed to transform electrical energy into mechanical energy with remarkable efficiency. Central to its design are electromagnetic coil windings or distributed stator windings that generate a powerful magnetic field, accompanied by a rotating armature or rotor. When the stator winding's rotating magnetic field is active, it induces a current within the armature's squirrel cage aluminum frame, causing it to rotate. These versatile machines can function both as electric motors and generators, making them indispensable in converting electrical energy into mechanical power across various industrial applications.
Working Principle:
Motors are extraordinary devices that ingeniously convert electrical energy into mechanical energy. They function by utilizing energized coils, known as stator windings, to create a dynamic and rotating magnetic field. This potent magnetic field engages with a squirrel cage-style closed aluminum frame rotor, generating magnetic electric rotational torque. Motors are broadly classified into DC motors and AC motors based on their power sources. In industrial power systems, AC motors are predominantly used, available in synchronous and asynchronous variants (where the speed of the stator magnetic field and the rotor's rotation differ). The fundamental components of an electric motor include the stator and the rotor. The direction of movement of the energized wire within the magnetic field is determined by the interplay between the current's direction and the magnetic field lines. Essentially, the working principle of an electric motor revolves around the magnetic field exerting force on the current, thereby inducing rotation and enabling various mechanical operations.
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