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.

Answer rating: 100% (QA)

Full load capacity 20000 W Three fourth of full load 34 x 20000 15000 W Pow... View the full answer