Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 50Hz 2.5Hz 2HZ 1 Hz 50Hz 2.5Hz 2HZ 1 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? Increase in reliability Increase efficiency under light load conditions All of these continuity supply is maintained Increase in reliability Increase efficiency under light load conditions All of these continuity supply is maintained ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be less than core loss. equal to core loss. zero. more than core loss. less than core loss. equal to core loss. zero. more than core loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, the reluctance power varies as sinδ sin2δ cosδ cos2δ sinδ sin2δ cosδ cos2δ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is 50 Hz 25 Hz 100 Hz 0 Hz 50 Hz 25 Hz 100 Hz 0 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on which of the following? Rotor speed. Shaft torque. Core loss component. Synchronous speed. Rotor speed. Shaft torque. Core loss component. Synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
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