Three Phase Induction Motors The torque developed in the cage induction motor with auto-starter is K2 × torque with direct switching k/torque with direct switching K × torque with direct switching k2/torque with direct switching K2 × torque with direct switching k/torque with direct switching K × torque with direct switching k2/torque with direct switching ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For higher efficiency of 3-phase induction motor, the slip should be 1 Very large As small as possible Large 1 Very large As small as possible Large ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors As load on an induction motor goes on increasing Its power factor remains constant Its power factor goes on increasing up to full load and then it falls again Its power factor goes on increasing even after full load Its power factor goes on decreasing Its power factor remains constant Its power factor goes on increasing up to full load and then it falls again Its power factor goes on increasing even after full load Its power factor goes on decreasing ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors One of the speeds of a 2 speed squirrel cage induction motor is 800 rpm. The other speed will be _____ 1200 rpm 2400 rpm 400 rpm 1600 rpm 1200 rpm 2400 rpm 400 rpm 1600 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The frequency of rotor current in a 6-pole , 50 Hz, 3-phase induction motor running at 950 rpm is 1.5 Hz 2.5 Hz 5 Hz 0.05 Hz 1.5 Hz 2.5 Hz 5 Hz 0.05 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Increasing rotor resistance None of the listed here Decreasing rotor resistance Increasing rotor reactance Increasing rotor resistance None of the listed here Decreasing rotor resistance Increasing rotor reactance ANSWER DOWNLOAD EXAMIANS APP
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