FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used in electric drive and electrochemistry, there is a series-connected even number N more than two converter units (6), which are connected by inputs to N windings (2-5) of transformer, having a phase shift of voltage vectors, equal to 60/N electric degrees, and outputs of circuit of N units are connected to load (7).
EFFECT: novelty is that at least one of secondary windings (2-5) has a whole group of connections from which the required phase shift of other windings is calculated.
1 cl, 1 dwg
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