DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the speed and hence generated e.m.f. To increase the series flux To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the speed and hence generated e.m.f. To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following could be lamina proximately the thickness of laminations of a D.C. machine? 0.05 mm 5 m 0.5 m 0.005 mm 0.05 mm 5 m 0.5 m 0.005 mm ANSWER DOWNLOAD EXAMIANS APP
DC Generators The physical size of 100 kW, 2000 rpm generator is _____ that of 10 kW, 200 rpm generator. About the same as Less than More than None of the listed here About the same as Less than More than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is To reduce eddy current losses To enhance flux density To provide mechanical balance for the rotor To amplify voltage To reduce eddy current losses To enhance flux density To provide mechanical balance for the rotor To amplify voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature copper loss in a dc generator is a Variable loss Constant loss Stray loss None of the listed here Variable loss Constant loss Stray loss None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field structure of a dc machine uses ______ None salient pole arrangements Both salient and non salient pole arrangements Salient pole arrangements None of the listed here None salient pole arrangements Both salient and non salient pole arrangements Salient pole arrangements None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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