Three Phase Induction Motors The synchronous speed of a 3-phase induction motor having 20 poles and connected to a 50 Hz source is _____ 1000 rpm 600 rpm 1200 rpm 300 rpm 1000 rpm 600 rpm 1200 rpm 300 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In the circle diagram for induction motor, the diameter of the circle represents Line voltage Slip Rotor current Running torque Line voltage Slip Rotor current Running torque ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The complete circle diagram of induction motor can be drawn with the help of data found from Stator resistance test Blocked rotor test No-load test All of these Stator resistance test Blocked rotor test No-load test All of these ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The reactance of the rotor circuit of a 3-phase induction motor is maximum at Starting Full load No load Half full load Starting Full load No load Half full load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The cogging of an induction motor can be avoided by Using DOL starter Auto transformer starter Having number of rotor slots more or less than the number of stator slots Proper ventilation Using DOL starter Auto transformer starter Having number of rotor slots more or less than the number of stator slots Proper ventilation ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed in the cage induction motor with auto-starter is K × torque with direct switching k2/torque with direct switching k/torque with direct switching K2 × torque with direct switching K × torque with direct switching k2/torque with direct switching k/torque with direct switching K2 × torque with direct switching ANSWER DOWNLOAD EXAMIANS APP
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