Synchronous Motors When the field of a synchronous motor is under-excited, the power factor will be unity zero lagging leading unity zero lagging leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous motors are generally used in application requiring _______ Variable speed Sudden application of heavy loads Frequent stopping Infrequent starting Variable speed Sudden application of heavy loads Frequent stopping Infrequent starting ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Remain unchanged Increase None of the listed here Decrease Remain unchanged Increase None of the listed here Decrease ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be unity leading zero lagging unity leading zero lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the maximum power developed depends on all of the following except supply voltage rotor excitation maximum value of coupling angle direction of rotation supply voltage rotor excitation maximum value of coupling angle direction of rotation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Armature input Dc source Motor input Supply lines Armature input Dc source Motor input Supply lines ANSWER DOWNLOAD EXAMIANS APP
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