Electrical Engineering MCQs on Synchronous Motor
Contents
- 1 The synchronous motor will always stop when
- 2 If field winding of an unloaded salient pole synchronous motor is open circuited, the motor will
- 3 In order to limit the operating temperature an electrical machine should have proper
- 4 Generally, synchronous motors are of
- 5 The angle between the rotating stator flux and rotor poles is known as
The synchronous motor will always stop when
The synchronous motor will always stop when
- Excitation winding gets disconnected
- Load in motor varies
- Supply voltage fluctuates
- Supply voltage frequency changes
Correct answer: 1. Excitation winding gets disconnected
If field winding of an unloaded salient pole synchronous motor is open circuited, the motor will
If field winding of an unloaded salient pole synchronous motor is open circuited, the motor will
- Burn with dense smoke
- Function as static condenser
- Run as induction motor
- Stop
Correct answer: 4. Stop
In order to limit the operating temperature an electrical machine should have proper
In order to limit the operating temperature an electrical machine should have proper
- Current rating
- Power factor
- Speed
- Voltage rating
Correct answer: 1. Current rating
Generally, synchronous motors are of
Generally, synchronous motors are of
- Alternator type machines
- Induction type machines
- Salient pole type machines
- Smooth cylindrical type machines
Correct answer: 3. Salient pole type machines
The angle between the rotating stator flux and rotor poles is known as
The angle between the rotating stator flux and rotor poles is known as
- Obtuse angle
- Power factor angle
- Synchronizing angle
- Torque angle
Correct answer: 4. Torque angle