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 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 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is Self starting with low torque Self starting with high torque Self starting with zero torque Non self starting Self starting with low torque Self starting with high torque Self starting with zero torque Non self starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ None of the listed here Direct on line Star-delta starting By auto transformer starting None of the listed here Direct on line Star-delta starting By auto transformer starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to (1-S) × rotor input S × rotor input (1+S) × rotor input None of the listed here (1-S) × rotor input S × rotor input (1+S) × rotor input None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If any two phases for an induction motor are interchanged The motor will burn The motor will run at reduced speed The motor will run in reverse direction The motor will not run The motor will burn The motor will run at reduced speed The motor will run in reverse direction The motor will not run ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ Speed control is required High starting torque is required Less costly motor is not required High rotor resistance is required during running Speed control is required High starting torque is required Less costly motor is not required High rotor resistance is required during running ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS