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
Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Shaft diameter Rotor power factor Rotor emf Rotor current Shaft diameter Rotor power factor Rotor emf Rotor current ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing winding resistance Changing supply frequency Changing number of poles Reducing supply voltage Changing winding resistance Changing supply frequency Changing number of poles Reducing supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is Self starting with low torque Self starting with zero torque Self starting with high torque Non self starting Self starting with low torque Self starting with zero torque Self starting with high torque Non self starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Reduced voltage starter can be used with Squirrel cage as well as slip ring induction motor None of these Squirrel cage induction motor only but not with slip ring motor Slip ring motor only but not with squirrel cage induction motor Squirrel cage as well as slip ring induction motor None of these Squirrel cage induction motor only but not with slip ring motor Slip ring motor only but not with squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The crawling in an induction motor is caused by Improper design of machine Low voltage supply High loads Harmonics developed in the rotor Improper design of machine Low voltage supply High loads Harmonics developed in the rotor ANSWER DOWNLOAD EXAMIANS APP
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