SEVEN-PHASE TRANSFORMER CONVERTER OF PHASE NUMBER Russian patent published in 2014 - IPC H02M5/14 

FIELD: electricity.

SUBSTANCE: device comprises a three-phase transformer having three coils (1, 2 and 3) of the primary winding, which are connected as "star" and are connected to a three-phase circuit, six connected main coils (4, 5, 6, 7, 8, 9) of secondary windings having one add-on coil 10 of the secondary winding and a tap (11, 12, 13, 14, 15, 16) from turns of the main coils (4, 5, 6, 7, 8, 9) of secondary windings.

EFFECT: invention makes it possible to produce technical result - to reduce consumption of active materials during replacement of a three-phase group transformer with a three-rod one, which as a result makes it possible to improve weight and dimension characteristics of a converter, to simplify design of a converter and technology of its manufacturing.

2 dwg