The maximum value of torque that a synchronous motor can develop without losing its synchronism, is known as

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
• A synchronous motor can develop synchronous torque
• The maximum torque which a synchronous motor will develop at rest for any angular position of the rotor, at rated stator supply voltage and frequency, is known as
• Due to which of the following reasons a synchronous motor fails to pull into synchronism after applying D.C. field current ?
• The ratio of starting torque to running torque in a synchronous motor is
• If load (or torque) angle of a 4-pole synchronous motor is 6° electrical, its value in mechanical degrees is
• While starting a salient pole synchronous motor by induction motor action and connecting field discharge resistance across field, starting and accelerting torque is produced by
• 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
• When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop
• In a synchronous motor running with fixed excitation, when the load is increased three times, its torque angle becomes approximately