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

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DC shunt motors differ from simple DC motors primarily in their construction and performance characteristics, particularly in their torque-speed curves. Shunt motors maintain a constant speed under varying loads due to their field windings being connected in parallel, resulting in a flatter torque curve compared to series or permanent magnet motors. The discussion also touches on the relationship between DC shunt motors and generators, noting that both operate on similar electromagnetic principles. This connection highlights the versatility of shunt motors in applications requiring consistent performance. Understanding these differences is crucial for selecting the appropriate motor type for specific applications.
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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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