Synchronous Motors In a synchronous motor it the back e.m.f. generated in the armature at noload is approximately equal to the applied voltage, then the excitation is said to be zero per cent the motor is said to be fully loaded the excitation is said to be hundred per cent the torque generated is maximum the excitation is said to be zero per cent the motor is said to be fully loaded the excitation is said to be hundred per cent the torque generated is maximum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Supply voltage frequency changes Supply voltage fluctuates Excitation winding gets disconnected Load in motor varies Supply voltage frequency changes Supply voltage fluctuates Excitation winding gets disconnected Load in motor varies ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The shaft of synchronous motor is made of Stainless steel Alcino Mild steel Chrome steel Stainless steel Alcino Mild steel Chrome steel ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.8 leading 0.5 leading 0.8 lagging Unity 0.8 leading 0.5 leading 0.8 lagging Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Over-excited Under-excited Normally excited All of these Over-excited Under-excited Normally excited All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The back emf in the stator of a synchronous motor depends on Rotor excitation Rotor speed Flux density None of the listed here Rotor excitation Rotor speed Flux density None of the listed here ANSWER DOWNLOAD EXAMIANS APP