Patent ID: 8809686
Filing Date: 2014-08-19
Classification: H01B,H01F

Abstract:
1. An electrical bushing for providing electrical insulation of a conductor extending through the bushing, the bushing comprising: a condenser core having at least two conductive foils concentrically arranged around the conductor location; and at least one FGM part comprising a field grading material and at least partly arranged in the extension of at least part of a foil edge of at least one of the at least two conductive foils; wherein the FGM part and the at least two conductive foils, in the extension of which the FGM part is arranged, are in electrical contact, and the FGM part extends beyond at least part of the conductive foil edge over an extension distance, the bushing being characterized in that the extension distance lies within the range of four times an interfoil separation distance of the bushing or less; and a surface of at least one FGM part contacts a surface of at least one of the conductive foils.