Description : for the voltage built-up a self-excited D.C. generator, which of the following is not an essential condition. 1.there must be some residual flux 2.field winding mmf must aid the residual ... 3.total field circuit resistance must be less than t critical value 4.armature speed must be very high
Last Answer : for the voltage built-up a self-excited D.C. generator, which of the following is not an essential condition. 1.there must be some residual flux 2.field winding mmf must aid the ... .total field circuit resistance must be less than t critical value 4.armature speed must be very high