FIELD: regulation and stabilization of three-phase voltage on high-voltage side of central transformer of station. SUBSTANCE: device has three- phase stepping-up transformer, which primary windings are connected to circuit of primary windings of central transformer. Secondary windings of stepping-up transformer are connected through three single-phase gate-controlled bridge commutators to corresponding phases of secondary winding of central transformer and load. Device provides smooth, six-region regulation of three- phase current without distortion of first harmonic phase. Stepping- up voltage is generated at six-fold mains frequency upon switching of each of gate at mains frequency. EFFECT: increased speed, improved power characteristics, decreased weight and size, simplified design, increased precision of three-phase voltage regulation in stationary and transient modes. 4 dwg
