The power developed by a synchronous motor will be maximum when the load angle is
Select an option to see the answer and solution.
Electrical Engineering · all questionsSynchronous Motors
Synchronous Motors
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
120
Questions
3/6
Page
Pick an option on a question to see the right answer and solution.
In a synchronous motor, V-curves represent relation between
Select an option to see the answer and solution.
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
Select an option to see the answer and solution.
In a synchronous motor, the armature current has large values for
Select an option to see the answer and solution.
The coupling angle or load angle of synchronous motor is defined as the angle between the
Select an option to see the answer and solution.
The armature current of the synchronous motor
Select an option to see the answer and solution.
If in a synchronous motor, driving mechanical load and drawing current at lagging power factor from constant voltage supply, its field excitation is increased, then its power factor
Select an option to see the answer and solution.
The maximum value of torque that a synchronous motor can develop without losing its synchronism, is known as
Select an option to see the answer and solution.
Exciters of synchronous machines are
Select an option to see the answer and solution.
A synchronous motor running with normal excitation adjusts to load increases essentially by increase in
Select an option to see the answer and solution.
A synchronous motor will always stop when
Select an option to see the answer and solution.
Which of the following motors will be used in electric clocks ?
Select an option to see the answer and solution.
When a 3-phase synchronous generator is supplying a zero power factor lagging load, the armature field affects the main field in the following way
Select an option to see the answer and solution.
In a synchronous motor, damper windings are provided on
Select an option to see the answer and solution.
In a synchronous motor, the damping winding is generally used to
Select an option to see the answer and solution.
A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because
Select an option to see the answer and solution.
Under which of the following conditions hunting of synchronous motor is likely to occur ?
Select an option to see the answer and solution.
The torque angle, in a synchronous motor, is the angle between
Select an option to see the answer and solution.
A synchronous motor is running with normal excitation. When the load is increased, the armature current drawn by it increases because
Select an option to see the answer and solution.
If the field winding of an unloaded salient pole synchronous motor is open circuited, the motor will
Select an option to see the answer and solution.