What Is DC Compound Motor: -
Field winding in these motors is in both series and parallel. The series field winding is of thick wire and low turn, its resistance is low. In series field winding is based on current load.
If there is less load, the series winding will take less current and if there is more load, the field winding will take more current. Parallel field winding consists of thin wires and more turns.
The resistance of this winding is also high. In parallel field winding, the current is almost the same. A DC compound machine can be used as a motor or generator.
It can be classified as indicated below.
If there is less load, the series winding will take less current and if there is more load, the field winding will take more current. Parallel field winding consists of thin wires and more turns.
The resistance of this winding is also high. In parallel field winding, the current is almost the same. A DC compound machine can be used as a motor or generator.
It can be classified as indicated below.
How Many Types Of DC Compound Motor: -
According to field winding connection compound motors are mainly 2 types-
1. Cumulative Compound Motor
2. Differential Compound Motor
1. Cumulative Compound Motor: -
Current and series winding of Cumulative Compound Motor flow in one direction. Speed in these motors is based on the load, the speed will be higher without load and will decrease as the load increases.
These motors are used where the load comes on the motor at once and then goes away. Such as hammer, punching machine, sharing machine, lift etc.
Here cumulative compound motor are also two types-
These motors are used where the load comes on the motor at once and then goes away. Such as hammer, punching machine, sharing machine, lift etc.
Here cumulative compound motor are also two types-
(A) Long Shunt Cumulative Compound Motor-
(B) Short Shunt Cumulative Compound Motor-
Differential Compound Motor: -
In these motors, series and shunt winding oppose each other. These motors will have less flux at high load and more flux at low load.
The specialty of these motors is that these motors have low speed without load and as the load increases the speed also increases. These motors are mostly used for Battery Charging. Here differential compound motor are also two types-
The specialty of these motors is that these motors have low speed without load and as the load increases the speed also increases. These motors are mostly used for Battery Charging. Here differential compound motor are also two types-
(A) Long Shunt Differential Compound Motor-
(B) Short Shunt Differential Compound Motor-