DC Shunt Motors: Differences from Simple DC Motors and Relation to Generators

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SUMMARY

DC shunt motors differ significantly from simple DC motors, primarily due to their flat torque curve, which is a characteristic of shunt wound configurations. The torque vs RPM curves for various types of DC brush motors, including shunt wound, series wound, and permanent magnet motors, illustrate these differences. The shunt wound motor maintains a constant applied flux, leading to distinct performance metrics compared to permanent magnet motors. Understanding these differences is crucial for selecting the appropriate motor for specific applications.

PREREQUISITES
  • Understanding of DC motor types: shunt wound, series wound, and permanent magnet
  • Familiarity with torque vs RPM curves
  • Basic principles of electromagnetism related to motor operation
  • Knowledge of motor applications in various contexts
NEXT STEPS
  • Research the performance characteristics of shunt wound DC motors
  • Explore the differences in torque vs RPM curves among various DC motor types
  • Learn about the applications of DC motors in industrial settings
  • Investigate the relationship between DC motors and generators in terms of design and functionality
USEFUL FOR

Engineers, electrical technicians, and students interested in motor design and applications, particularly those focusing on DC motor performance and its relation to generators.

gurpreet_leh
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how dc shunt motors are different from the simple dc motors and is there any relation between between generators
 
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gurpreet_leh said:
how dc shunt motors are different from the simple dc motors and is there any relation between between generators

Welcome to the PF. What is the context of your question? What are you going to use this motor for?
 
The attached URL has torque vs RPM curves for four different types of dc brush motors, the most common of which are the shunt wound, the series wound, and the permanent magnet. The shunt wound dc brush motor has the flattest torque curve. See
http://www.reliance.com/mtr/mtrthrmn.htm
Bob S
 
Bob S said:
The attached URL has torque vs RPM curves for four different types of dc brush motors, the most common of which are the shunt wound, the series wound, and the permanent magnet. The shunt wound dc brush motor has the flattest torque curve. See
http://www.reliance.com/mtr/mtrthrmn.htm
Bob S

I took a quick glance at the link. Why is the shunt wound DC motor speed-torque curve different than a permanent magnet motor. I find this suprizing. Both would seem to have a constant applied flux. Do you happen to know?
 
Phrak said:
I took a quick glance at the link. Why is the shunt wound DC motor speed-torque curve different than a permanent magnet motor. I find this suprizing. Both would seem to have a constant applied flux. Do you happen to know?
I saw that, and was also puzzled.
Bob S
 

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