These components are: a stator, a rotor, a yoke, poles, armature windings, field windings, commutator, and brushes. Many of its parts are the same as parts of AC motor, but with a little change.
What are the major parts of DC motor?
DC motors include two key components: a stator and an armature. The stator is the stationary part of a motor, while the armature rotates. In a DC motor, the stator provides a rotating magnetic field that drives the armature to rotate.
What are the four main parts of a DC motor?
A brushed DC motor is made up of 4 basic components; the stator, the rotor ( or armature ), brushes, and commutator.
What are the 5 major parts of a DC brushed motor?
The basic parts of a brushed DC motor are:
- Case, bearing and stator magnets (stator, i.e. stationary),
- Motor shaft and washers,
- Armature / rotor,
- Commutator (and sometimes a Varistor), and.
- Brushes and terminals or leads.
What are the basic parts elements of a simple DC motor?
The basic parts of an electric motor are DC/AC power supply, stator, rotor, Yoke, Pole shoe, brushes and the slip ring, bearings, shaft, commutator and winding.
What is the full form of dc motor?
A DC motor is defined as a class of electrical motors that convert direct current electrical energy into mechanical energy. From the above definition, we can conclude that any electric motor that is operated using direct current or DC is called a DC motor.
What are the applications of DC motor?
DC machines are also used in applications where high starting torque and accurate speed control over a wide range are important. Major applications for DC motors are: elevators, steel mills, rolling mills, locomotives, and excavators. Like other rotating machines, DC motors result from the interaction of two magnets.
What is the principle of DC motor?
DC motors operate on Faraday’s principle of electromagnetism which states that a current-carrying conductor experiences a force when placed in a magnetic field.
What are the types of DC motor?
There are 4 main types of DC motors:
- Permanent Magnet DC Motors. The permanent magnet motor uses a permanent magnet to create field flux. …
- Series DC Motors. In a series DC motor, the field is wound with a few turns of a large wire carrying the full armature current. …
- Shunt DC Motors. …
- Compound DC Motors.
Why commutator is used in DC motor?
The commutator on the DC generator converts the AC into pulsating DC. … On DC and most AC motors the purpose of the commutator is to insure that the current flowing through the rotor windings is always in the same direction, and the proper coil on the rotor is energized in respect to the field coils.
Why do DC motors have brushes?
They can either be graphite or precious metal brushes which have electrical motor connections. To supply power to the rotor we put in place a brush system and each of the brushes have a direct voltage symbol (+/-). The brushes are connected to the commutator bars which allows the current to flow into the winding.
Are Brushed motors AC or DC?
Since it is easier to implement control systems using DC motors compared to AC motors, they are often used when speed, torque, or position needs to be controlled. There are two types of commonly used DC motors: Brushed motors, and brushless motors (or BLDC motors).
Why are brushes used in DC motor?
In dc motors, the carbon brush makes sure the commutation process remains free from sparks. This contact is a sliding contact capable of transmitting electric current from static to the rotating part of a generator or electric motor. A single or several carbon blocks composes a brush.
What is a simple DC motor?
A simple DC motor uses a stationary set of magnets in the stator, and a coil of wire with a current running through it to generate an electromagnetic field aligned with the centre of the coil. … The commutator allows each armature coil to be energised in turn, creating a steady rotating force (known as torque).
What are the difference between the two main types of DC motor?
Mainly there are two types of DC Motors. One is Separately Excited DC Motor and other is Self-excited DC Motor. The self-excited motors are further classified as Shunt wound or shunt motor, Series wound or series motor and Compound wound or compound motor. The dc motor converts electrical power into mechanical power.
What are the advantages of DC motor?
Below are some advantages of DC motors that you should consider:
- Good speed control. DC motors offer highly controllable speed. …
- High torque. …
- Seamless operation. …
- Free from harmonics.