Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ Short circuited 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 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is inversely proportional to rotor reactance at standstill Inveresly proportional to supply voltage Directly proportional to rotor resistance None of the listed here inversely proportional to rotor reactance at standstill Inveresly proportional to supply voltage Directly proportional to rotor resistance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. Large slip Low resistance High reactance high resistance Large slip Low resistance High reactance high resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ Star-delta starting Direct on line None of the listed here By auto transformer starting Star-delta starting Direct on line None of the listed here By auto transformer starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Size of a high speed motor as compared to low speed motor for the same HP will be Any of the listed here Bigger Same Smaller Any of the listed here Bigger Same Smaller ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The no load speed of an induction motor depends on The maximum flux/poles The number of its poles The supply frequency Both supply frequency and number of poles The maximum flux/poles The number of its poles The supply frequency Both supply frequency and number of poles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS