Assignment 2 (D.C.Machines)
1 .Why commutator
and brush arrangement is necessary for operation of
2 .what is a D.C. compound
generator? Differentiate Over, Level and differential compounding with the help
of their external characteristics?
3 .Explain how the output
voltage of
(1)D.C. shunt generator
(2)D.C. series generator vary with increasing load current?