Patent ID: 9013258
Filing Date: 2015-04-21
Classification: H01F,H02M

Abstract:
1. A rectifier transformer including, in a tank, at least one primary, at least one secondary with phase windings, one pair of magnetic transductors per phase winding, one of the transductors having one or more first busbars and the other having one or more second busbars, all of the first and second busbars of the pair of transductors being connected via one end to the same phase winding, the first busbar or each first busbar being connected via another end to a single positive outlet connection terminal ( 2 w +) designed to be connected to a positive arm of the rectifier, the second busbar or each second busbar being connected via another end to a single negative outlet connection terminal ( 2 w −) designed to be connected to a negative arm of the rectifier, said rectifier transformer being characterized in that all of the busbars of the pair of magnetic transductors form one or more groups, each group being encircled by a magnetic toroid, or by a set of magnetic toroids and comprising one or more first busbars and one or more second busbars in such a manner that when the outlet connection terminals are short-circuited and when the transformer is being fed with AC via its primary, the busbars of a group pass currents of opposite directions such that the current or the sum of the currents in one direction is substantially equal to the current or to the sum of the currents in the other direction.