Electrical Machines In DC generator, brushes are always placed along geometrical neutral axis. load axis. armature axis. magnetic neutral axis. geometrical neutral axis. load axis. armature axis. magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for voltage build up in self excited generator? Poles should contain residual flux. Field winding should be properly connected to armature winding. All of these Field winding resistance should be less than critical resistance. Poles should contain residual flux. Field winding should be properly connected to armature winding. All of these Field winding resistance should be less than critical resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Wave winding is employed in DC machine of low current and high voltage rating. high current and low voltage rating. high current and low voltage rating. low current and low voltage rating. low current and high voltage rating. high current and low voltage rating. high current and low voltage rating. low current and low voltage rating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on which of the following? Shaft torque. Rotor speed. Core loss component. Synchronous speed. Shaft torque. Rotor speed. Core loss component. Synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? both 1 and 2 above rated speed None of these below rated speed both 1 and 2 above rated speed None of these below rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 192 V 96 V 384 V 768 V 192 V 96 V 384 V 768 V ANSWER DOWNLOAD EXAMIANS APP
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