25th November 2019

wikipedia

11

What is the purpose of the rotor?

Upvote4 Downvote1

The rotor is a moving component of an electromagnetic system in the electric motor, electric generator, or alternator. Its rotation is due to the interaction between the windings and magnetic fields which produces a torque around the rotor's axis.

Correspondingly, what is salient pole synchronous machine?

Cylindrical, round rotors, (also known as non salient pole rotor) are used for up to six poles. In some machines or when a large number of poles are needed, a salient pole rotor is used. The construction of synchronous motor is similar to that of a synchronous alternator.

What is a rotor and a stator?

The term, "stator" is derived from the word stationary. The stator then is the stationary part of the AC motor. The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles.

What is the purpose of damper winding?

Originally Answered: What is damper winding and its function? This additional rotor winding is usually referred to as a damper winding because of its additional property of damping out any oscillation that might be caused by sudden changes in the load on the rotor when in synchronism.

1

What is the purpose of a squirrel cage?

A squirrel-cage rotor is the rotating part of the common squirrel-cage induction motor. It consists of a cylinder of steel laminations, with aluminum or copper conductors embedded in its surface.

2

How does a stater work?

The powerful electric starter motor does the turning. Its shaft carries a small pinion ( gear wheel) which engages with a large gear ring around the rim of the engine flywheel . The starter needs a heavy electric current , which it draws through thick wires from the battery.

3

What is the use of armature winding?

The armature winding is the main current-carrying winding in which the electromotive force or counter-emf of rotation is induced. The current in the armature winding is known as the armature current. The armature windings of dc motors are located on the rotor, since they must operate in union with the commutator.

4

What is the slip speed?

Slip can be defined as the difference between the flux speed (Ns) and the rotor speed (N). Speed of the rotor of an induction motor is always less than its synchronous speed. It is usually expressed as a percentage of synchronous speed (Ns) and represented by the symbol 'S'.

5

Is a stator and alternator the same thing?

An alternator is made up of two parts; the stator and the magnet rotor, also known as the flywheel. The rotor or flywheel contains permanent magnets and spins around the stator to produce energy. Stator designs vary widely but all work on the same principles.

6

What is the function of stator and rotor?

The stator then is the stationary part of the AC motor. The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles. The rotor is located inside the stator and is mounted on the AC motor's shaft.

7

What is the slip of an induction motor?

In order for an induction motor to make torque, there must be at least some difference between the stator field (synchronous) speed and the rotor speed. That difference is called “slip.” It is why, when you look at a motor nameplate, the motor rated speed will always be less than synchronous speed.

8

How does an electric motor work?

Large AC motors (used in things like factory machines) work in a slightly different way: they pass alternating current through opposing pairs of magnets to create a rotating magnetic field, which "induces" (creates) a magnetic field in the motor's rotor, causing it to spin around.

9

What is the function of the commutator in a motor?

Function of commutator: To keep the torque on a DC motor from reversing every time the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point.

10

What is the difference between a rotor and a stator?

The term, "stator" is derived from the word stationary. The stator then is the stationary part of the AC motor. The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles.

11

What is demagnetizing effect?

The demagnetizing field, also called the stray field (outside the magnet), is the magnetic field (H-field) generated by the magnetization in a magnet. The term demagnetizing field reflects its tendency to act on the magnetization so as to reduce the total magnetic moment.

12

What are armatures for?

In electrical engineering, an armature generally refers to one of the two principal electrical components of an electromechanical machine — generally in a motor or generator — but it may also mean the pole piece of a permanent magnet or electromagnet, or the moving iron part of a solenoid or relay.

13

What is the function of the brushes in an electric motor?

A brush is a device which conducts current between stationary wires and moving parts, most commonly in a rotating shaft. Typical applications include electric motors, alternators and electric generators.

14

How does a DC motor work?

How does a DC Motor work? The DC motor is a machine that transforms electric energy into mechanical energy in form of rotation. Its movement is produced by the physical behavior of electromagnetism. DC motors have inductors inside, which produce the magnetic field used to generate movement.

15

What is the function of the armature in an electric motor?

The armature, in contrast, must carry current, so it is always a conductor or a conductive coil, oriented normal to both the field and to the direction of motion, torque (rotating machine), or force (linear machine). The armature's role is twofold.

16

What is the function of the armature?

The armature, in contrast, must carry current, so it is always a conductor or a conductive coil, oriented normal to both the field and to the direction of motion, torque (rotating machine), or force (linear machine). The armature's role is twofold.

17

How does the armature work?

The armature takes the place of the nail in an electric motor. The armature is an electromagnet made by coiling thin wire around two or more poles of a metal core. The contacts of the commutator are attached to the axle of the electromagnet, so they spin with the magnet.

18

What does the rotor do?

Brake rotors are an important component in the braking system that stops your vehicle. Brake rotors (they're also called brake discs) are what your vehicle's brake pads clamp down on to stop the wheels from spinning.

19

What is the function of a stator in a motor?

Depending on the configuration of a spinning electromotive device the stator may act as the field magnet, interacting with the armature to create motion, or it may act as the armature, receiving its influence from moving field coils on the rotor.

Write Your Answer

Similar Asks

Bookmark

Press Ctrl + D to add this site to your favorites!

Share