POWER SUPPLY FOR SINGLE-PHASE INDUCTIVE-RESISTIVE LOADS AFFORDING BALANCE OF THREE-PHASE PRIMARY NETWORK Russian patent published in 2006 - IPC H02M5/14 H01F30/12 

FIELD: electrical engineering and transformer building.

SUBSTANCE: proposed power supply designed to convert three-phase voltages and currents has magnetic circuit assembled of three cores A, B, and C of equal cross-sectional area, three-phase primary winding, sectionalizing switch, three-phase network, and secondary winding; each magnetic core mounts two partial windings having unequal turn number; winding parts on each magnetic core bearing same index have same turn number: Wa1x1 = Wb1y1 = Wc1z1 and Wa2x2 = Wb2y2 = Wc2x2; secondary winding parts are connected in series as follows: winding Wa1x1 is connected to Wb1y1 and Wc1z1 so that lead x1 is coupled with lead b1 and lead y1, with lead c1; winding Wa2x2 is connected to windings Wb2y2 and Wc2z2, lead a2i being connected to lead b2, lead y2, to lead c2, and lead a1, to leads c1 and z2.

EFFECT: simplified design, enhanced performance characteristics.

3 cl, 1 dwg