Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 20 Hz 2 Hz 200 Hz 50 Hz 20 Hz 2 Hz 200 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Reduced voltage starter can be used with None of these Slip ring motor only but not with squirrel cage induction motor Squirrel cage as well as slip ring induction motor Squirrel cage induction motor only but not with slip ring motor None of these Slip ring motor only but not with squirrel cage induction motor Squirrel cage as well as slip ring induction motor Squirrel cage induction motor only but not with slip ring motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Rotor emf Shaft diameter Rotor power factor Rotor current Rotor emf Shaft diameter Rotor power factor Rotor current 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 5 Hz 2.5 Hz 0.05 Hz 1.5 Hz 5 Hz 2.5 Hz 0.05 Hz 1.5 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In medium sized induction motor, the slip is generally around 0.4 % 4 % 0.04 % 14% 0.4 % 4 % 0.04 % 14% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors As load on an induction motor goes on increasing Its power factor goes on increasing even after full load Its power factor goes on increasing up to full load and then it falls again Its power factor remains constant Its power factor goes on decreasing Its power factor goes on increasing even after full load Its power factor goes on increasing up to full load and then it falls again Its power factor remains constant Its power factor goes on decreasing ANSWER DOWNLOAD EXAMIANS APP
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