Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Rotor current Shaft diameter Rotor emf Rotor power factor Rotor current Shaft diameter Rotor emf Rotor power factor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip rings are usually made of Aluminium Phospor bronze Copper Carbon Aluminium Phospor bronze Copper Carbon ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors 5 H.P., 50Hz, 3-phase, 440 V, induction motors are available for the following r.p.m. Which motor will be the costliest? 1440 rpm 1000 rpm 2880 rpm 730 rpm 1440 rpm 1000 rpm 2880 rpm 730 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the supply voltage of a 3-phase induction motor is increased two times, then torque is _______ Increased four times Decreased two times Decreased four times Increased two times Increased four times Decreased two times Decreased four times Increased two times ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The advantage of wound rotor motor is that _______ None of the listed here It requires less maintenance It is inexpensive External resistance can be inserted in the rotor circuit None of the listed here It requires less maintenance It is inexpensive External resistance can be inserted in the rotor circuit ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor, no load the slip is generally 2% Less than 1% 4% 1.5 % 2% Less than 1% 4% 1.5 % ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS