Types of commutators in DC machine

[maliksunny]

1. Types off commutator and their effect on current densit?



[b.]2I want to ask how many types of commutators are there in a DC machine and what is their effect on current density..[\b]


3.i have been working on it for a long time and came to know tht there are two types
Brushed and Brushless
guide me![\b]

thanks

 

[berkeman]

1. Types off commutator and their effect on current densit?



[b.]2I want to ask how many types of commutators are there in a DC machine and what is their effect on current density..[\b]


3.i have been working on it for a long time and came to know tht there are two types
Brushed and Brushless
guide me![\b]

thanks

Search engines can be your friend:

http://en.wikipedia.org/wiki/Commutator_(electric )

.