Three Phase Induction Motors At no load the rotor core loss of a 3 phase induction motor is Practically zero None of the listed here Large Small Practically zero None of the listed here Large Small ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 65% 40% 90% None of the listed here 65% 40% 90% None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ S × rotor input (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input S × rotor input (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Star Delta Partly star and partly delta None of the listed here Star Delta Partly star and partly delta None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 15 to 20 % 5% 30 to 50% 10 to 15% 15 to 20 % 5% 30 to 50% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The efficiency of an induction motor can be expected to be nearly 60 to 90% 80 to 90% 95 to 98 % 99% 60 to 90% 80 to 90% 95 to 98 % 99% ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS