Three Phase Induction Motors In an induction motor if air gap increased The power factor will be low Copper loss will reduce Bearing friction will reduce Windage losses will be more The power factor will be low Copper loss will reduce Bearing friction will reduce Windage losses will be more ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ Phase sequence of supply voltage Supply frequency Number of poles Magnitude of supply voltage Phase sequence of supply voltage Supply frequency Number of poles Magnitude of supply voltage ANSWER DOWNLOAD EXAMIANS APP
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 If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ 1+S 1-S S-1 None of the listed here 1+S 1-S S-1 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased at starting None of the listed here Increased under running conditions Decreased at starting Increased at starting None of the listed here Increased under running conditions Decreased at starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is so called because its operation depends on Mutual induction Eddy currents Hysteresis Self induction Mutual induction Eddy currents Hysteresis Self induction ANSWER DOWNLOAD EXAMIANS APP
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