Tuesday 14 June 2016

Ac motor meaning

The most basic difference is the power source. An alternating current motor in which currents in the secondary wiring of the rotor are created by induction from the magnetic field of the primary winding of the stator. Here we need to define what is synchronous speed.


What do all those things on an ac motor nameplate mean. Unfortunately the terminology associated with motor technologies can be confusing, partly because multiple terms can sometimes be used interchangeably to refer to the same basic motor configuration.

Among the classic examples of this phenomenon is that of induction motors and asynchronous motors.

Rotor slip provides necessary induction of rotor currents for motor torque, which is in proportion to slip.

When rotor speed increases, the slip decreases. Increasing the slip increases induced motor current, which in turn increases . AC induction motors and synchronous motors are simple and low maintenance, but are awkward to apply for traction motors because of their fixed speed characteristic. Manufacturers often include additional information to further define some key motor features.


Nameplate Marking for Medium Single-Phase and Polyphase Induction. Motors , of the NEMA standard requires that The following minimum amount of information . VFDs are used in applications ranging from small appliances to large compressors. A regular AC asynchronous motor usually can be used . Aluminum, because of its lower electrical conductivity, may be an alternate material in fractional horsepower motors , especially when the motors are used for very short durations. An AC alternator is able to produce power across multiple high-current power generation coils connected in parallel, eliminating the need for the . Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a . An aluminium plate on top often forms the secondary rotor.


Main article: Linear induction motor.


English dictionary definition of induction motor. AC Contactor: An alternating current ( ac ) contactor is designed for the specific purpose of establishing or interrupting an AC power circuit. Accelerating Torque: The torque developed from standstill (zero speed) to full speed at nameplate voltage.


The NEMA definition for short-time motors is as follows: “All short-time ratings are based upon corresponding short-time load tests, which shall.


Related to induction motor synchronous motor(electrical engineering) a type of definition is an ac electric which contains electromagnetically induced current in the rotorAc induction . It is one of the most define synchronous . Induction motor definition of induction by the free dictionary.

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