Three Phase Induction Motors In medium sized induction motor, the slip is generally around 4 % 0.4 % 14% 0.04 % 4 % 0.4 % 14% 0.04 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Insertion of resistance in the rotor of an induction motor to develop a given torque Increases the rotor current Decreases the rotor current Rotor current becomes zero Rotor current remains same Increases the rotor current Decreases the rotor current Rotor current becomes zero Rotor current remains same 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 A wound rotor motor is mainly used in applications where ______ Less costly motor is not required High rotor resistance is required during running High starting torque is required Speed control is required Less costly motor is not required High rotor resistance is required during running High starting torque is required Speed control is required ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If any two phases for an induction motor are interchanged The motor will run at reduced speed The motor will burn The motor will not run The motor will run in reverse direction The motor will run at reduced speed The motor will burn The motor will not run The motor will run in reverse direction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Not easily maintainable Essentially a constant speed motor A variable speed motor Very costly Not easily maintainable Essentially a constant speed motor A variable speed motor Very costly ANSWER DOWNLOAD EXAMIANS APP
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