Abb Technology Ltd

Abb Reasearch Ltd.

Abb Research Ltd.

Ralf Hartings

Joachim Schiessling

Tommy Larsson

Björn Jacobson

Uno Gafvert

David Emilsson

Uno Gäfvert

Dan Gustavsson

Olof Heyman

Rutger Johansson

Mats Berglund

Tor Laneryd

Peter ÅStrand

A high voltage shielding device including a main body having an enclosing outer solid insulating wall, an outer electrode arranged on the solid insulating wall providing a first level of insulation to the outer electrode, and a first inner electrode which is uninsulated or has a coating providing a second level of insulation, which second level of insulation is lower than the first level of insulation. The first inner electrode is oriented relative the outer electrode in such a way that the first inner electrode mainly shields a component of an electric field which is perpendicular to a component of an electric field mainly shielded by the outer electrode.

High voltage shielding device and a system comprising the same

The invention relates to a high voltage device for providing electrical insulation of a conductor extending through the device. The device includes a hollow insulator; a conductor extending through the hollow insulator; a field gradient decreasing arrangement including a condenser core and a voltage grading shield. The condenser core and the voltage grading shield are arranged around the conductor inside the hollow insulator in a manner so that the voltage grading shield is arranged around at least part of the condenser core.

High voltage device

A high voltage bushing for a high voltage device containing insulating liquid includes a voltage grading shield, improving performance and facilitating manufacturing.

High voltage bushing and high voltage device comprising such bushing

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Ludvika, Sweden

Ralf Hartings