Patent ID: 6867674

Claim:
A transformer comprising: a high voltage winding having turns, and a low voltage winding having turns, wherein, each of said high voltage winding and said low voltage winding being magnetically permeable and having a flexible conductor that is configured to contain an electric field, and the turns of the high voltage winding being intermixed with turns of the low voltage winding, said flexible conductor includes, a central electrical conductor, a first layer having semi-conducting properties provided around said electrical conductor, a solid insulating layer provided around said first layer, and a second layer having semi-conducting properties provided around said solid insulating layer and configured to contain an electric field in the flexible conductor, wherein said central conductor includes a plurality of strands of wire, a portion of said strands being insulated strands such that at most only a minority of said plurality of strands being in electrical contact with other strands that are not insulated.