Question: A 20 KW dc shunt generator running at full load is consuming 150 W in its shunt winding, 785W in its armature winding. Armature core

A 20 KW dc shunt generator running at full load is consuming 150 W in its shunt winding, 785W in its armature winding. Armature core is absorbing 375 W while power wasted in mechanical parts amounts to 250 W. Calculate the overall efficiency at three-fourth of the full load.

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