What is Series Wound DC Motor ?

What is Series Wound DC Motor ?

Series Wound DC Motor Definition

A series wound DC motor is a type of self-excited motor where the field winding is connected in series with the armature winding.

Construction

The motor includes key parts like the stator, rotor, commutator, and brush segments, similar to other DC motors.

 Voltage and Current Equation

Let the supply voltage and current given to the electrical port of the motor be given by E and Itotal respectively.Since the entire supply current flows through both the armature and field conductor.

 Where, I，se is the series current in the field coil and Ia is the armature current.

Torque Production

The motor produces high torque due to the linear relationship between field current and torque, making it suitable for heavy loads.

 Speed Regulation

These motors have poor speed regulation because they struggle to maintain speed when external loads are applied.