Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ Lower winding is more effective Outer cage winding has good pf None of the listed here Lower cage winding has low reactance Lower winding is more effective Outer cage winding has good pf None of the listed here Lower cage winding has low reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ Supplying a variable resistive load None of the listed here Open circuited Short-circuited Supplying a variable resistive load None of the listed here Open circuited Short-circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is Directly proportional to rotor resistance inversely proportional to rotor reactance at standstill Inveresly proportional to supply voltage None of the listed here Directly proportional to rotor resistance inversely proportional to rotor reactance at standstill Inveresly proportional to supply voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The good power factor of an induction motor can be achieved if the average flux density in the air gap is Absent Small Infinity Large Absent Small Infinity Large ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The reactance of the rotor circuit of a 3-phase induction motor is maximum at No load Full load Half full load Starting No load Full load Half full load Starting 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. 30 to 50% 10 to 15% 15 to 20 % 5% 30 to 50% 10 to 15% 15 to 20 % 5% ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS