Abb Research Ltd.

Abb Technology Ltd

Abb Power Grids Switzerland Ag

Robert Ståhl

Peter Sjöberg

Kenneth Johansson

A lead-trough device for an electrical conductor, which structure includes an insulating body arranged for housing the electrical conductor along a central axis of the insulating body. Further, the lead-trough structure includes insulating layers and conducting layers arranged on the inside of the insulating body, which insulating layers and conducting layers are concentrically wrapped around the central axis of the body and alternatingly arranged along a transaxial direction of the insulating body. At least one conducting layer is wrapped concentrically around the central axis of the body for less than 360&#xb0; such that ends of the at least one conducting layer are spaced apart.

Bushings foil design

A bushing for electrical current and/or voltage through a grounded plane. A substantially rotationally symmetrical insulating body surrounds a central electrical conductor. The bushing includes a sealing member for gas/liquid sealing between the conductor and the insulator body. The bushing includes a compressible sealing element, which forms a gas/liquid seal, integrated with the insulating body, between the conductor and the insulating body. A method of manufacturing a bushing.

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Ludvika, Sweden

Robert Ståhl