The speed of a synchronous motor

Related MCQs

• A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will
• When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop
• In a 3-phase, 4-pole, 50 Hz synchronous motor, the frequency, pole number and load torque all are halved. The motor speed will be
• A synchronous motor can develop synchronous torque
• A synchronous motor can be used as a synchronous capacitor when it is
• In case one phase of a three-phase synchronous motor is short-circuited the motor will
• A synchronous motor is running on a load with normal excitation. Now if the load on the motor is increased
• As the load is applied to a synchronous motor, the motor takes more armature current because
• A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because
• An important advantage of a synchronous motor over wound round induction motor is that