*elecreical machines can be devided into:
-generetors-which convert mechanical energy into electrical energy
-motors- which convert electrical energy into mechanical energy.
*Both types operates through the interaction between a magnetic field and a set of windings
Classification of Electrical Machines
DC Generators and Motors(DC Machines):
A more efficient approach is to replace the two slip rings with a single split slip ring called a commutator.
-This is arranged so that connections to the coil are reversed as the voltage from the coil changes polarity.
-Hence the voltage across the brushes is of a single polarity.
-Adding additional coils produces a more constant output.
Basic arrangement of dc machine:
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