DEVICE FOR HIGH-VOLTAGE ISOLATION OF MEANS FOR SUPPLYING POWER TO ELECTRICAL DEVICE CONNECTED TO HIGH-VOLTAGE POTENTIAL

摘要

A device (40) for high-voltage isolation of a means (30) for supplying power to an electrical device (50) connected to a high-voltage potential comprises an isolation transformer (10) that is suitable for supplying power to the power supply means (30). The isolation transformer (10) is a transformer without a magnetic core and includes a primary inductance means (11a) and a secondary inductance means (11b) that are placed in alignment with each other at a predetermined fixed distance (D) so as to magnetically couple the primary inductance means (11a) and the secondary inductance means (11b), and at least one element (52, 55) that is not sensitive to the magnetic field and that extends through the primary inductance means (11a) and the secondary inductance means (11b). The invention is of particular use on a railway vehicle.