FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and is used in a powerful electric drive. Three-phase high-frequency high-voltage converter comprises series-connected converter blocks (9), powered from three-phase groups of gate windings of transformers (2, 3, 4), and outputs of group of blocks (9) are connected to motor (12), network winding (1) of transformer is connected to high-voltage switch (8), and winding (6) of pre-charge through current-limiting capacitors (11) is connected to switch (7) of medium voltage network.
EFFECT: novelty is that there is short-circuiting device (10) which provides short-circuit of capacitors to the star in operating mode, thereby providing compensation of reactive power.
1 cl, 2 dwg
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