Patent ID: 6906447
Filing Date: 2005-06-14
Classification: H01F,H02H,H02K,Y10S

Abstract:
1. A rotating asynchronous high voltage converter for connection of AC networks with equal or different frequencies, wherein the converter comprises a first stator connected to a first AC network with a first frequency f 1 , and a second stator connected to a second AC network with a second frequency f 2 , wherein the converter comprises a rotor which rotates in dependence of the first and second frequencies f 1 , f 2 , and wherein at least one of said stators includes at least one winding forming at least one uninterrupted turn, said winding including a current-carrying conductor a plurality of insulated conductive elements and at least one uninsulated conductive element, and a magnetically permeable, electric field confining insulating covering surrounding the conductor, including an inner layer having semiconducting properties being in electrical contact with the conductor, an insulating layer surrounding the inner layer being in intimate contact therewith and an outer layer having semiconducting properties surrounding the insulating layer and being in intimate contact therewith, wherein each layer forms a substantially equipotential surface.