What is compounded DC motor?

What is compounded DC motor?

What Is a Compound DC Motor? As we mentioned before, compound DC motors are basically made up of a combination of series and shunt motors. they are also called DC compound motors. this type of motor has both series and shunt field coils that are connected to the winding of an armature.

What is compound generator compound motor?

A compound wound DC motor (also known as a DC compound motor) is a type of self-excited motor, and is made up of both series the field coils S1 S2 and shunt field coils F1 F2 connected to the armature winding as shown in the figure below.

What type of compound is motor?

The types of compound excited DC motor are Short Shunt Motor, Long Shunt Motor, Differential Compound, Cumulative Compound.

What are compound motors used for?

Applications. Cumulative compound wound motors are virtually suitable for almost all applications like business machines, machine tools, agitators and mixers etc. Compound motors are used to drive loads such as shears, presses and reciprocating machines.

What are the characteristics of a cumulatively compounded DC motor?

In a compound motor, if series and shunt windings are connected such that series flux is in direction as that of the shunt flux then the motor is said to be cumulatively compounded. And if the series flux is opposite to the direction of the shunt flux, then the motor is said to be differentially compounded.

Which is type of DC motor?

Types of DC Motors. There are 3 main types of DC motor that are available:- Series, Shunt and Compound. These terms relate to the type of connection of the field windings with respect to the armature circuit.

What are applications of DC motor?

In portable applications using battery power, DC motors are a natural choice. 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.

What are the different types of compound DC motors?

There are two major types of compound DC motors depending upon the connections of shunt field winding with the armature winding and series winding. Those two types are: In the case of long shunt compound DC motor, the shunt field winding is connected in parallel with both armature coil winding and the series field winding.

When does a compound DC motor give high starting torque?

When the shunt field flux made by the shunt winding aids the effect of the main field flux made by the series winding, we can say that the motor is cumulatively compounded. Cumulative motors give high starting torque like a series motor and reasonable good speed regulation at high speeds like a shunt DC motor.

What makes a compound wound DC motor compound?

Cumulative Compounding of DC Motor. A compound wound DC motor is said to be cumulatively compounded when the shunt field flux produced by the shunt winding assists or enhances the effect of main field flux, produced by the series winding.

How are shunt resistors connected in a DC compound motor?

In the case of long shunt compound DC motor, the shunt field winding is connected in parallel with both armature coil winding and the series field winding. On the other hand, in the case of short shunt compound DC motor, a shunt resistor is only in parallel with the armature field coil. Figure- 2 represents the schematic comparison of both types.