Direct current motor S

alternating currentthree-phasesynchronous

Synchronous motors are applied on applications that require power factor correction, low starting currents and high torques, and constant speed under load variations with low operating and maintenance costs. Brushless Exciter Synchronous motors with brushless excitation system present a rotating exciter, normally located in a compartment in the back of the motor. Depending on the motor operation, the exciter is composed by: Exciter with direct current supply on the stator Exciter with alternating current supply on the stator The exciter rotor supplies the necessary power to the motor excitation winding through a rotating, three-phase rectifier bridge. Exciter Rectification Circuit for Brushless Motors The field application control circuit of the rectification system uses microprocessors to determine the best angle and phase for field application. The Sync-Rite™ system is a high-performance, digitally controlled module developed by WEG Electric Machinery. As an option, a portable Sync-Rite™ testing device can be supplied for easy verification of the circuit electronic components, without the need of disassembling the circuit.