DC Generators The size of a dc generator can be reduced by using ______ Iron commutator High resistance winding material Lap winding Magnetic material of high permeability Iron commutator High resistance winding material Lap winding Magnetic material of high permeability ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is their rising voltage characteristics unequal speed regulation of their primemovers unequal number of turns in their series field windings unequal series field resistances their rising voltage characteristics unequal speed regulation of their primemovers unequal number of turns in their series field windings unequal series field resistances ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following could be lamina proximately the thickness of laminations of a D.C. machine? 0.5 m 5 m 0.005 mm 0.05 mm 0.5 m 5 m 0.005 mm 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of v Hz 5 will be zero will be of 5 xiVHz will be of 5 Hz will be of v Hz 5 will be zero will be of 5 xiVHz will be of 5 Hz ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Constant loss Stray loss Iron loss Mechanical loss Constant loss Stray loss Iron loss Mechanical loss ANSWER DOWNLOAD EXAMIANS APP
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