SYNCHRONOUS MOTOR AND MG SET - Quiz

1) Why exciter is essential to run a synchronous motor?

Carry more load in motor Improve the power factor Reduce the losses in motor Run the motor at synchronous speed

2) Which application requires only DC?

Electroplating Stepping up of voltage Operating induction motor Operating repulsion motor

3) Why the LED's are avoided as converters in rectifier diodes?

Heavily doped device Very low power device Designed for light emitting Very sensitive to temperature

4) Which is the main application of synchronous motor?

Elevators Paper rolling mills AC to DC converter Power factor correction device

5) What is the advantage of motor generator set?

Noiseless High efficiency Low maintenance required DC output voltage can be easily controlled