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Operation Characteristics of DC Motor with Handwritten Notes in PDF

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

1. Characteristics of DC series Motor

Three important characteristics of a DC motor are given below

A. Torque and Armature Current Characteristics

It is the graph plotted between the armature torque (τa) and the armature current (Ia) of a DC motor. It is also known as the electrical characteristics of the DC motor.

B. Speed and Armature Current Characteristics

It is the graph plotted between the speed (N) and the armature current (Ia) of a DC motor. This characteristic curve is mainly used for selecting a motor for a particular application.

C. Speed and Torque Characteristics

The graph plotted between the speed (N) and the armature torque (τa) for a DC motor is known as the speed-torque characteristics. It is also known as the mechanical characteristics of a DC motor.

 

2. Characteristics of DC Shunt Motor

3. Characteristics of DC Compound Motor

 

I hope the above Hindi video lecture and the handwritten note can help you to understand the Operation Characteristics of DC motors properly. Stay with us for more educational video lectures and handwritten notes with free job alerts as well.

Checkout: Expression of speed and speed regulation of DC Motor with Handwritten Notes in PDF

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