A 120+m -V , 2400+n-rpm shunt DC motor has a armature resistance 0.4+0.1*m ohm and a...

A 120+m -V , 2400+n-rpm shunt DC motor has a armature resistance 0.4+0.1*m ohm and a shunt field resistance of 160+m Ohm . The motor operates at its rated speed with full load which takes 15+m Amp. A small of current of 2+.1*m A at no load due to rotational loses. Assume that rotational loss is proportional to the speed.

Find

Field current at no load
Armature current at no load
Rotational loss at no load
Armature current at Full load
No load speed
Rotational loss at full load
Efficiency of this motor

n=1

m=1

Expert Solution

Manojponduru answered 2 years ago

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