Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 1 Hz 2.5Hz 50Hz 2HZ 1 Hz 2.5Hz 50Hz 2HZ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following load normally needs starting torque more than rated torque? Centrifugal pumps. Blowers. Air compressors. Conveyers. Centrifugal pumps. Blowers. Air compressors. Conveyers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tap changer is generally provided in power transformer. earthing transformer. voltage transformer. current transformer. power transformer. earthing transformer. voltage transformer. current transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on which of the following? Rotor speed. Synchronous speed. Core loss component. Shaft torque. Rotor speed. Synchronous speed. Core loss component. Shaft torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected in series either of these depending on the design of the motor through inductive coupling in parallel in series either of these depending on the design of the motor through inductive coupling in parallel ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? core loss only windage and friction loss Copper loss both 1 and 2 core loss only windage and friction loss Copper loss both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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