Electrical Machines Rotating magnetic field is produced in an induction motor because of rotor winding. None of these stator winding. either stator winding or rotor winding. rotor winding. None of these stator winding. either stator winding or rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for shunt motors. separately excited motors. series motors. differential compound motors. shunt motors. separately excited motors. series motors. differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve starting torque. reduce copper loss. improve efficiency. improve power factor. improve starting torque. reduce copper loss. improve efficiency. improve power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Total core loss is also called as -------------? Copper loss Eddy current loss Magnetic loss Hysteresis loss Copper loss Eddy current loss Magnetic loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3 - Φ, 4 pole, 50 Hz IM rotating at full load speed of 1440 rpm, calculate speed of rotor field with respect to rotor structure and stator structure respectively? 50, 1500. 60, 1500. 60, 1440. 1440, 1500. 50, 1500. 60, 1500. 60, 1440. 1440, 1500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? BRY BYR RBY All of these BRY BYR RBY All of these ANSWER DOWNLOAD EXAMIANS APP
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