Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? compensating winding pole stacking pole chamfering All of these compensating winding pole stacking pole chamfering All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 86.91 V. 66.91 V. 56.91 V. 76.91 V. 86.91 V. 66.91 V. 56.91 V. 76.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motors are used in food processing traction cranes All of these food processing traction cranes All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Unity power factor. Lagging power factor. Zero power factor. Leading power factor. Unity power factor. Lagging power factor. Zero power factor. Leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A small air gap in poly phase induction motor helps to reduce chance of crawling. reduce magnetizing current. reduce chance of cogging. increase starting torque. reduce chance of crawling. reduce magnetizing current. reduce chance of cogging. increase starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does the use the of height flux density value in transformer design lead to? Reduced iron loss. Increase in weight/KVA. Decrease in weight/KVA. Reduced copper loss. Reduced iron loss. Increase in weight/KVA. Decrease in weight/KVA. Reduced copper loss. ANSWER DOWNLOAD EXAMIANS APP
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