Reluctance motors are also used, but their output/weight ratio isn't very good, so they're less competitive than the squirrel cage induction motor. PM motors, which are used with electronic adjustable ...

NEMA design letter — Certain types of machinery may require motors with specialized performance characteristics. For example, cranes and hoists that have to start with full loads imposed may require ...

Rotor poles might be made to generate their currents by induction from the stator fields—a tricky proposition in 1888, for the conditions of voltage, current, and field must be choreographed ...

In an induction motor, the stator and the rotor are both made of wire windings. AC power is supplied to the stator, which creates a constantly rotating magnetic field.

(IEC 60034- 30 specifies electrical efficiency classes for single-speed, three-phase, 50 and 60-Hz, cage-induction motors that have two, four, or six poles, have rated output between 0.75 and 375 ...

Many types of electric motors are used today, but the two most important are the ac induction motor and the permanent magnet (PM) brushless synchronous motor, also known as the brushless dc or ac ...