A resistor in a DC exciter discharges the current generated in the field of a synchronous motor after synchronous speed has been achieved.

Question

Quizplus · Accepted Answer

A resistor in a DC exciter is used to control the field current of a synchronous motor, not to discharge current after synchronous speed has been achieved. The main purpose of the excitation system is to provide the necessary field current to the rotor winding of the synchronous motor to create the magnetic field needed for operation, not to discharge it post reaching synchronous speed.

A Resistor in a DC Exciter Discharges the Current Generated