FIELD: a.c. voltage regulation and reactive-power correction in devices using stepless control of load voltage amplitude and phase. SUBSTANCE: corrector has transformer, inverter, reversing rectifier, sensors of reactive component of supply mains current or power and load voltage, switch. Setting signal and signal picked off load voltage sensor are applied to subtractor inputs. Differential signal is sent to inverter control system. Amplitude of combined load voltage vector is regulated by varying control angle of inverter thyristors. Signal coming from supply mains current or power reactive component sensor goes to pulse-phase control system of reversing rectifier and controls reactive power consumed from mains by varying control angle of rectifier thyristors. EFFECT: provision for correcting reactive power with desired load voltage stability irrespective of external characteristic of supply mains and magnitude and type of load. 3 dwg
