Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 100W 60W 40W 80W 100W 60W 40W 80W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does happen if tripled harmonics given to induction motor? Will results in open circuit. Will results in short circuit. Nothing will happen. Fail to start. Will results in open circuit. Will results in short circuit. Nothing will happen. Fail to start. 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 through inductive coupling in parallel either of these depending on the design of the motor in series through inductive coupling in parallel either of these depending on the design of the motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Leading power factor. Zero power factor. Lagging power factor. Unity power factor. Leading power factor. Zero power factor. Lagging power factor. Unity power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is finite value 0 1 infinite value finite value 0 1 infinite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ventilating ducts in most of DC machine are none of these. radial. radial as well as longitudinal. longitudinal. none of these. radial. radial as well as longitudinal. longitudinal. ANSWER DOWNLOAD EXAMIANS APP
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