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How a rotaing magnetic field is generated in an induction motor?
Wiki User
∙ 11y ago
The magnet is the stator part of the motor, either as a permanent or an electromagnet. It draws the rotor past of the motor towards it causing the rotation. As it does this the brushes of the motor now lose contact with that section of the rotors many coils and switch to next segment on the commutator (copper segments the brushes run on). This new coil becomes magnetised and is again drawn to the stator magnet and so on.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoDue to the slip. Slip is the difference between rotor physical speed and stator electric frequency. Rotor frequency + slip will be equivalent to the stator electric frequency. This is why an induction motor always operates at some slip - if there is no slip, there is no torque between the rotor and stator.
AnswerThe machine's stator has three sets of field windings arranged around its internal circumference. These windings are connected such that they are each supplied with a separate phase voltage, and the resulting field currents increase/decrease in step with the phase sequence (A-B-C) of those voltages. The corresponding magnetic fields generated by each field winding increase/decrease in the same sequence as the separate field currents, and the combined -or resultant- magnetic field rotates within the stator -if a compass were to be placed within the stator (with the rotor removed, of course), then its needle would be seen to rotate in step with that rotating field.
Wiki User
∙ 12y agoeasy it is called that and is that because it just is you dumb people
Wiki User
∙ 12y agorotating magnetic field induces currents in the rotor conductors and with the air gap field it produces a torque in the same direction as in the rotating magnetic field.
Wiki User
∙ 12y agoIt is a magnetic field that is the principal component that allows motors to operate.
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What is the process called in which a conductor cuts across a magnetic field and produces a voltage?
We call it induction when we pass a conductor through a magnetic field to produce voltage.
What is electromagnetic induction?
Electromagnetic Induction mainly deals with the ways that energy is shifted about between Electric and Magnetic fields in various circumstances. Here are some major examples:1. A moving Electric Current Induces a Magnetic field: Electromagnets.2. A moving conductor in a magnetic field Induces an Electric Current: The Dynamo or Electric generator.3. An Electrified Conductor in a Magnetic field Induces motion in the Conductor: The Electric Motor.Related Information:Albert Einstein's considerations of inductance, an Electrified length of conductor moving through a Magnetic Field in an empty volume of space, led him to his theory of Special Relativity.
How does electromagnetic induction produce induced current?
Before you can understand how electrical energy is supplied by your electric company, you need to know how it is produced. A magnet and a conductor, such as a wire, can be used to induce a current in the conductor. The key is motion. An electric current is induced in a conductor when the conductor moves through a magnetic field. Generating an electric current from the motion of a conductor through a magnetic field is called electromagnetic induction. Current that is generated in this way is called induced current. To induce a current in a conductor, either the conductor can move through the magnetic field or the magnet itself can move.
When does an electromagnet produce a magnetic field?
A magnetic field is generated whenever a current is passing through a wire.
Role of stator and rotor in synchronous and induction motor?
Stator is part of rotating mechanical device thats sorrounds the rotor to rotate it through the induced magnetic field while the Rotor, is the one who is rotated by produced magnetic field in the stator,.
What is the process by which electric current is generated by placing a wire in a magnetic field?
Electro magnetic induction...................
What is the process by which electric current is generated placing a wire in a magnetic field?
electromagnetic induction
What is the process by which electric current is generated by placing a wire in magnetic field?
electromagnetic induction
What is process by which electric current is generated by placing a wire in a magnetic field?
electromagnetic induction
What is the process in which electrical current is generated by placing a wire in magnetic field?
electromagnetic induction
What is the process by which electric current is generated by a placing a wire in a magnetic field?
electromagnetic induction
When a electrical current is generated in a conductor by placing it in a magnetic field the process is known as?
Electromagnetic Induction
What is necessary for induction?
For electromagnetic induction, you need a conductor moving in a magnetic field.
Is a three phase induction motor self starting?
A three-phase motor has a steady rotating magnetic field generated by the stator coil, and the rotor just follows the field.
Why can an induction heating process heat magnetic material faster than non magnetic material?
To heat something by induction (which is and oscillating magnetic field), the material has to react to the magnetic field. As the magnetic field is made to oscillate, the molecules of the material are pulled and vibrated in sympathy with the field and their vibration energy increases. Heat IS the vibration of molecules. Thus induction heating will work on a magnetic material but will have no effect on a material that is not magnetically susceptible.
How does an induction motor develop torque?
The shaft of an AC induction motor rotates because of the torque created by the interaction between the magnetic field of the stator and the magnetic field of the rotor.
Where does the earth's magnetic field get its power from?
earths magnetic field is generated by the circulation of liquid metal.
