It has the good starting torque and nearly constant speed also. So it is used in Presses, Shears, Conveyors, Elevators etc. Clear concept by your article. Thank you for this complete solution related to application of DC motor. Thank you sir. Above all information is very helpful for me to better understanding the concept of DC motor…….
Your email address will not be published. Skip to content Search for:. Introduction D. C motors are classified into three motors : D. C series motor D. C shunt motor. Compound motor According to characteristics of dc motor , motors are used in the application. Why D. C motors are used? C motors have some advantages like Low construction cost Speed control over a wide range High starting torque Quick Starting and Stopping, Reversing and Acceleration Speed control of dc motor is just simple: only adjust the terminal voltage, often using a local potentiometer.
Characteristics of D. Regenerative braking is not possible since the field current needs to be maintained but it collapses when the rotor current passes through zero and reverses Shunt motor: This motor runs at a constant speed when the supply voltage is fixed.
Conclusion hope you truly understand about all different type of dc motors and their application. Because of this energy, we can use this motor in number of applications. In this blog we have discussed the application of different types of DC motor.
DC series motor is suitable for both high and low power drives, for fixed and variable speed electric drives. This type of motor has simple construction. Also, it is easy for design and maintenance. Because of its high starting torque, this motor uses in the cheap toys and automotive applications such as,.
We all know that Dc shunt motor provides the constant speed. This type of motor mostly uses in the constant speed application from no load to full load. The applications are,. The permanent magnet DC motor is the special type of motor where we use a permanent magnet to create the required magnetic field. As this motor does not need to control the speed, it uses in the applications like,. As we discussed, there are two types of Compound DC motor. One is Differential and other is Cumulative compound motor.
The differential compound motor has poor torque characteristics because the motor increases the speed with increase in load. On the other hand, the cumulative compound motor has high starting torque characteristic. The operation of D. The functions of Yoke are:. This flux reacts with the main field flux and produces rotation or torque.
In this type of dc motor, the electrical supply is given separately to the field and armature winding. In this, the armature current does not flow through the field winding, as the field winding is powered by a separate external source of DC current.
Permanent magnet DC motor has armature winding like a usual motor but it does not have field winding. In this type of dc motor, the radially magnetized permanent magnets are placed inside the stator core to generate flux. Whereas the rotor consists of a conventional DC armature with commutator segment and brushes. In a self-excited type DC motor, the field winding is connected in series or in parallel, partly in series or partly in parallel with the armature winding.
Self-excited DC motors are then divided into 3 types:. These types of dc motors are characterized by the connection of field winding in relation to the armature namely.
A DC shunt motor also known as a shunt wound DC motor is a type of self-excited DC motor, where field winding is shaken or connected parallel to the armature winding of the motor.
Because they are connected in parallel, the armature and field winding are exposed to the same supply voltage. But, there are separate branches for the flow of armature current and field current as shown in the figure above. The construction of a DC shunt motor is similar to other types of DC motors, as shown in the figure.
This motor can consist of basic parts such as field windings stator , a commutator, and an armature rotor. This current flow will create two fields particularly the pole as well as the armature. In the air distance between the armature and the field shoes, there are two magnetic fields, and they will react with each other to rotate the armature. The commutator reverses the current flow direction of the armature at ordinary intervals.
Therefore the armature field as opposed to the pole field at all times keeps rotating the armature in an equal direction. A DC series motor is similar to any other motor because the main function of this motor is to convert electrical energy into mechanical energy. The operation of the series motor essentially depends on the electromagnetic principle.
Whenever the magnetic field is approximately formed, a current-carrying conductor cooperates with the external magnetic field, and then a rotating motion can be produced. The D. C series motor is consists of a rotor armature , commutator, stator, axle, field windings, and brushes. The fixed component of the motor is the stator and is constructed with two or more electromagnet pole parts.
The rotor consists of the armature and windings at the associated core for the armature. The power source in the brush array associated with the commutator can be connected to the armature winding. The rotor includes a central axle for rotating, and due to a large amount of current in the entire winding the field winding should be able to hold the higher current, the larger will be the torque produced with the motor. An external voltage source is applied in a series configuration of field winding and armature.
0コメント