Medium frequency transformer and semiconductor frequency inverter with a medium frequency transformer

摘要

Transformer (2), especially a medium frequency transformer, for use in a frequency converter (1), comprising: - a transformer core (21), - a multi-wire winding (22) with several wires (22a, 22b) which they are wound around the core (21) of the transformer, each of the wires (22a, 22b) forming a coil branch (24a, 24b); - terminals (23) in which the respective corresponding ends of the wires (22a, 22b) are electrically connected to one another; - an inductive coupling (5) for inductively coupling the coil branches (24a, 24b) with one another in pairs so as to compensate eddy currents in the coil branches (24a, 24b).