27 Facts About Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy.

An electric motor is generally designed for continuous rotation, or for linear movement over a significant distance compared to its size.

Electric motor's motor set a world record, which Jacobi improved four years later in September 1838.

The constant speed AC induction Electric motor was found not to be suitable for street cars, but Westinghouse engineers successfully adapted it to power a mining operation in Telluride, Colorado in 1891.

Mikhail Dolivo-Dobrovolsky claimed that Tesla's Electric motor was not practical because of two-phase pulsations, which prompted him to persist in his three-phase work.

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General Electric Company began developing three-phase induction motors in 1891.

Induction Electric motor improvements flowing from these inventions and innovations were such that a 100-horsepower induction Electric motor currently has the same mounting dimensions as a 7.

Two mechanical parts of an electric motor are the rotor, which moves, and the stator, which does not.

Electric motor current passing through the wire causes the magnetic field from the field magnet to exert a force on it, turning the rotor, which delivers the mechanical output.

DC Electric motor is usually supplied through a split ring commutator as described above.

Once started, a synchronous Electric motor requires synchrony with the moving magnetic field's speed for all normal torque conditions.

Commutated DC Electric motor has a set of rotating windings wound on an armature mounted on a rotating shaft.

Many of the limitations of the classic commutator DC Electric motor are due to the need for brushes to maintain contact with the commutator, creating friction.

The commutator assembly on a large Electric motor is a costly element, requiring precision assembly of many parts.

Commutated, electrically excited, series or parallel wound motor is referred to as a universal motor because it can be designed to operate on either AC or DC power.

An induction Electric motor is an asynchronous AC Electric motor where power is transferred to the rotor by electromagnetic induction, much like transformer action.

An induction Electric motor resembles a rotating transformer, because the stator is essentially the primary side of the transformer and the rotor is the secondary side.

When used with a load that has a torque curve that increases with speed, the Electric motor operates at the speed where the torque developed by the Electric motor is equal to the load torque.

Torque Electric motor can operate indefinitely while stalled, that is, with the rotor blocked from turning, without incurring damage.

One type of synchronous Electric motor is like an induction Electric motor except that the rotor is excited by a DC field.

The clock requires manual starting by a small knob on the back, while the older Hammond organs had an auxiliary starting Electric motor connected by a spring-loaded manually operated switch.

Coreless or ironless DC Electric motor is a specialized permanent magnet DC Electric motor.

Servo Electric motor is a Electric motor that is used within a position-control or speed-control feedback system.

Linear motor is essentially any electric motor that has been "unrolled" so that, instead of producing torque, it produces a straight-line force along its length.

The maximum torque for a Electric motor depends on the maximum current, absent thermal considerations.

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An electrostatic motor is based on the attraction and repulsion of electric charge.

Piezoelectric motor or piezo motor is a type of electric motor based upon the change in shape of a piezoelectric material when an electric field is applied.