A device for isolating the high voltage power supply means of an electrical device connected to a high voltage potential

摘要

A device for high-voltage insulation (40) of the power supply means (30) of an electrical device (50) connected to a high voltage potential, comprises an isolating transformer (10) adapted to supply the power supply means (30). The isolating transformer (10) is a transformer, without a magnetic core comprising a means of a primary winding (11 a) and a secondary inductance (11b) arranged facing one another, at a distance (d) a predetermined fixed so as to be coupled magnetically the means of a primary winding (11 a) and the secondary inductor (11 b), at least one element (52, 55) which is insensitive to magnetic field extending through the means of a primary winding (11a) and (11b). Use in particular on a railroad vehicle.