What are characteristics of DC series and shunt motor?

The performance of a DC motor is given by the relation among the armature current, torque and speed. These relations are given graphically in the form of curves, which are called as characteristics of DC motors.

How the characteristics of DC series motor differs from DC shunt motor?

A series motor respond by decreasing its speed with small increase in current for a given load torque. A shunt motor holds its speed nearly constant with large increase in input current for same amount of load torque.

What is the characteristics of a DC series motor?

In a series DC motor the field is connected in series with the armature. The field is wound with a few turns of large wire because it must carry the full armature current. A characteristic of series motors is the motor develops a large amount of starting torque.

What are the applications of DC shunt motor depending on its characteristics?

The applications of shunt DC motor include the following.

  • These motors are used wherever stable speed is required.
  • This kind of DC motor can be used in Centrifugal Pumps, Lifts, Weaving Machine, Lathe Machines, Blowers, Fans, Conveyors, Spinning machines, etc.

What is the difference between torque speed characteristic of DC series motor with DC shunt motor?

(c)Torque Vs Speed Characteristic (Ta Vs N):Torque is proportional to square of the armature current, Ta α Ia2. The speed of DC series motor is N ∝ Eb/ɸ. Hence if the torque on the DC shunt motor increased the armature current also increases, thus flux increases and speed will be dropped as N ∝1/square root Ta .

What is the difference between DC motor and DC shunt motor?

With a DC compound motor, the majority of the field is wound for a shunt field but with a few turns of series winding on top. The shunt is connected across the field supply and the series turns are connected in series with the armature. This provides a motor with a combination of the shunt and series characteristics.

What are the characteristics of shunt motor?

Characteristics of a DC Shunt Motor:

  • Speed-Armature Current Characteristic:
  • Torque-Armature Current Characteristic:
  • Speed-Torque Characteristic:
  • Break in Field Circuit of a DC Motor:

Which type of motor characteristics are similar to DC shunt motor?

Speed-Torque Characteristics : Similar to the dc shunt motor, the N vs T relation of the dc series motor is similar to N vs Ia (a parabolic curve) as shown in figure (c). At no-load, Ia will be low, and hence torque, thus speed will be very high. As the load increases, torque increases, and speed decreases.

What are the applications of Series DC motor?

Application of DC Series motor

  • Cranes.
  • Air compressor.
  • Lifts.
  • Elevators.
  • Winching system.
  • Electric traction.
  • Hair drier.
  • Vacuum cleaner and in speed regulation application.

What is the relation between torque and current of DC series motor?

The torque in case of a dc series motor is proportional to the square of the armature current. This relation is parabolic in nature as shown in the figure. As load increases, armature current increases and torque produced increases proportional to the square of the armature current up to a particular limitation.

What is characteristics of DC series generator?

There are generally three most important characteristics of series wound DC generator which show the relation between various quantities such as series field current or excitation current, generated voltage, terminal voltage and load current.