What is the most important part of the DC machine?

What is the most important part of the DC machine?

The device which is used to convert DC into AC in DC motor is called commutator. Actually it is the most important part of DC motor. It is responsible to produce the unidirectional torque in DC motor.

What are the 3 main parts of a DC generator?

A DC Generator is an electrical device which converts mechanical energy into electrical energy. It mainly consists of three main parts, i.e. magnetic field system, armature and commutator and brush gear.

What are the 2 main parts of DC machine and what are the main windings in it?

Each DC machine contains two separate terminals with a magnetized center between them. There are two main parts, the stator and the rotor. The stator contains parts such as brushes, magnets and housing for the whole motor. The rotor contains the windings, the communicator and the output shaft.

What are the main parts of DC machines in construction give the functions of each?

Basic constructional parts of a DC machine are described below.

• Yoke: The outer frame of a dc machine is called as yoke.
• Poles and pole shoes: Poles are joined to the yoke with the help of bolts or welding.
• Field winding: They are usually made of copper.
• Armature core: Armature core is the rotor of a dc machine.

What is the outer part of DC machine?

Yoke: The outer frame of a dc machine is called as yoke. It is made up of cast iron or steel. It not only provides mechanical strength to the whole assembly but also carries the magnetic flux produced by the field winding. Poles and pole shoes: Poles are joined to the yoke with the help of bolts or welding.

What are the main parts of DC machine and what is the function of each of them?

There are two main parts, the stator and the rotor. The stator contains parts such as brushes, magnets and housing for the whole motor. The rotor contains the windings, the communicator and the output shaft. The two parts work together when voltage is applied to create a moving motor.

Which part of DC machine is laminated and why?

Armature core is made with silicon steel. It is laminated to reduce the eddy current losses. In a DC machine, open slots are use to reduce leakage flux, inductance, and leakage reluctance.

What is the rotating part of DC machine?

The rotating part of the DC Generator is called the Armature. The armature consists of a shaft upon which a laminated cylinder, called Amature Core is placed.

What are poles in a DC machine?

The operation of a DC motor is dependent on the workings of the poles of the stator with a part of the rotor, or armature. The stator contains an even number of poles of alternating magnetic polarity, each pole consisting of an electromagnet formed from a pole winding wrapped around a pole core.

Which part of DC machine is laminated?

What are the main parts of dc machine and what is the function of each of them?

What are the essential parts of a DC machine?

Essential parts are Field magnet, armature, commutator, brush and brush gear, bearing and shaft. DC machine (whether a generator or motor) with four poles is shown in Fig. 1. In construction, dc machine consists of four parts mainly Brush and brush gear.

What are the parts of a DC generator motor?

So, a dc generator motor may usually be called a DC machine. The key parts of DC generators are yoke, poles, pole shoes, armature core, armature winding, commutator, brushes, magnetic field system, commutator, end housings, bearings, and Shafts. These are the parts of DC generators and will be discussed below in more detail.

What is the function of the armature in a DC machine?

When the field coils are excited by DC supply, the flux passes through pole, air gap, armature and yoke ( or frame ) of DC machines ( Figure A ). It houses the armature conductors. When an armature is rotated in the magnetic field, its function is to provide low reluctance path to the magnetic flux.

What is the field of a DC motor?

Field Winding of a DC Machine The field is the stationary part of a DC motor. A field is usually constructed out of magnetic poles. In the example above of the copper coil spinning on its own axis between two magnets, the two magnets produce a magnetic field in which a conductor, the armature, must move to produce an electric charge.