What is the function of core in motor?

Consisting of a stator and a rotor, a motor core plays a pivotal role in generating electricity within a motor.

What is armature and how does it work?

In electrical engineering, an armature is the component of an electric motor which carries alternating Current. When the machine or motor is used as a motor, this EMF opposes the armature Current, and the armature converts electrical power to mechanical power in the form of Torque and transfers it via the shaft.

What is the role of armature in electric motor?

Armature – It is a rectangular coil that is placed in a uniform magnetic field. The main function of the armature is to rotate the shaft or axel to which it is attached.

Why is armature important?

This framework provides structure and stability, especially when a plastic material such as wax, newspaper or clay is being used as the medium. When sculpting the human figure, the armature is analogous to the major skeleton and has essentially the same purpose: to hold the body erect.

Why is armature core laminated?

To minimize the eddy current loss we increases the resistance in the path of eddy current by laminating it. Eddy current losses are directly proportional to area of armature or more precisely the path of motion. That is why armature of DC machines (either motor or generator) is laminated.

What is armature core in dc machine?

Armature core: Armature core is the rotor of a dc machine. It is cylindrical in shape with slots to carry armature winding. The armature is built up of thin laminated circular steel disks for reducing eddy current losses. It may be provided with air ducts for the axial air flow for cooling purposes.

What is the function of armature winding in DC machine?

Function of Armature The winding wound on the core is given current through a DC supply. This current-carrying winding as under the influence of the magnetic field develops a force that develops a rotational torque. This torque enables the machine to rotate.

What is the function of armature coil and split rings in an electric motor?

1) Armature- Rotates when electric current is passed hence its kinetic energy can be used for various purposes. 2) Brushes- Maintains contact of the armature coil with the main circuit while rotating. 3) Split Rings- Prevents the rotation of the main circuit while the rotation of armature coil.

What is an armature in physics?

(ˈɑːmətjʊə) n. 1. ( General Physics) a revolving structure in an electric motor or generator, wound with the coils that carry the current.

Why do we use lamination constructions for field core and armature core?

These individual, thin pieces have a higher resistance than one solid piece, and therefore, produce less eddy currents and experience lower eddy current loss. The individual iron pieces that make up the armature are referred to as laminations.

Why is the armature core in DC machines is constructed with laminated steel sheets instead of solid steel?

Why the armature core in d.c machines is constructed with laminated steel sheets instead of solid steel sheets? Lamination highly reduces the eddy current loss and steel sheets provide low reluctance path to magnetic field.

Why is the armature core of a DC machine laminated?

What are the parts of an armature?

Armature Parts & Diagram 1 Armature Core. The core of the armature is made up of laminated thin metal plates instead of a single piece. 2 Armature Winding. The armature winding is inserted into slots of the armature core. 3 Shaft. The shaft of the machine is used to transfer mechanical energy. 4 Commutator.

Why laminated silicon steel is used for the armature core?

The laminated silicon steel is used for the armature core to reduce the eddy current and hysteresis loss. Generally, the armature core is a hollow cylindrical shape. And the shaft is placed inside the armature core. The core consists of the number of slots.

What is the function of an armature winding?

It consists of teeth and slots in which the winding is housed. It provides a low reluctance path for the main field flux. The armature winding is responsible for the production of armature flux.

How thick is the core of an armature?

Armature Core The core of the armature is made up of laminated thin metal plates instead of a single piece. The thickness of laminations depends on the supply frequency. It is approximately 0.5mm thick.