Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. Find the speed of stator magnetic field with respect to rotor? 1500 rpm 30 rpm zero 1470 rpm 1500 rpm 30 rpm zero 1470 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer oil is used as an insulator. inert medium. both A and B. a coolant. an insulator. inert medium. both A and B. a coolant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Larger values of air flux density is taken while designing IM for both. none. larger output. larger bore diameter. both. none. larger output. larger bore diameter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms. 0.649. 0.573. 0.443. 0.512. 0.649. 0.573. 0.443. 0.512. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commonly used starters of cage motor is None of these DOL. star delta. both A and B. None of these DOL. star delta. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a switched reluctance motor. induction motor. variable reluctance motor. DC motor. switched reluctance motor. induction motor. variable reluctance motor. DC motor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS