Alternators In an alternator, the armature reaction will be completely magnetizing in case the load power factor is Zero leading Unity Zero lagging 0.866 Zero leading Unity Zero lagging 0.866 ANSWER DOWNLOAD EXAMIANS APP
Alternators Modern 3-phase alternator of a central power station will have generated voltage of 132 kV 400 V 230 V 11 kV 132 kV 400 V 230 V 11 kV ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of a salient pole machine is nearly 1500 rpm 1000 rpm 500 rpm 3000 rpm 1500 rpm 1000 rpm 500 rpm 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Alternators The frequency of the system with which several alternators are paralleled can be increased of by simultaneously _______ of all generators. Decreasing the speed of prime movers Decreasing the field excitation Increasing the field excitation Increasing the speed of prime movers Decreasing the speed of prime movers Decreasing the field excitation Increasing the field excitation Increasing the speed of prime movers ANSWER DOWNLOAD EXAMIANS APP
Alternators The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become Unchanged Double Half One fourth Unchanged Double Half One fourth ANSWER DOWNLOAD EXAMIANS APP
Alternators Which harmonic will be totally eliminate in an alternator by using a fractional pitch of 4/5 ? Seventh Fifth Ninth Third Seventh Fifth Ninth Third ANSWER DOWNLOAD EXAMIANS APP
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