The principle of operation
Phase-controlled 6 or 12-pulse thyristor rectifier is the input system of the generator which converts the power received from the alternating current network into controlled direct current power.
Smoothing choke in direct current circuit provides uninterrupted power supply from rectifier to thyristor inverter and limits current in case of short-circuit in receiver. Thyristor inverter operates in full single-phase bridge circuit. Electronic control system generates ignition impulses of the rectifier and the inverter thyristors. Output voltage is controlled by setting potentiometer or other superior system.