Three Phase Induction Motors At no load the rotor core loss of a 3 phase induction motor is None of the listed here Practically zero Small Large None of the listed here Practically zero Small Large ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The air gap between stator and rotor of 3-phase induction motor ranges from ______ 1 cm to 2 cm 0.4 mm to 4 mm 4 cm to 6 cm 2 cm to 4 cm 1 cm to 2 cm 0.4 mm to 4 mm 4 cm to 6 cm 2 cm to 4 cm 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 _____ 2400 rpm 400 rpm 1600 rpm 1200 rpm 2400 rpm 400 rpm 1600 rpm 1200 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Essentially a constant speed motor Not easily maintainable A variable speed motor Very costly Essentially a constant speed motor Not easily maintainable A variable speed motor Very costly 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
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency Zero frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency Zero frequency ANSWER DOWNLOAD EXAMIANS APP
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