Abb Technology Ltd

Hitachi Energy Ltd

Dan Gustavsson

Peter Sjöberg

Björn Jacobson

Simon Lindgren

Zoltan Repasi

Ralf Hartings

Olof Heyman

Rutger Johansson

Thomas Eriksson

Urban Aström

Jan Kogner

Fredrik Petrisi

Richard Natz

Lars Svedjehed

The present disclosure relates to an air-to-air through-wall bushing including a conductor, insulation surrounding the conductor, a ventilation inlet at a first end of the bushing, and a ventilation outlet at a second end of the bushing. The bushing is arranged through a wall and a pressure difference between a first pressure on a first side of the wall and a second pressure on a second side of the wall is provided The inlet and outlet allow cooling air to pass through a ventilation channel within the bushing driven by the provided pressure difference.

Air-cooled air-to-air bushing

A high voltage bushing including an electrical conductor configured to be electrically connected to a high voltage device and configured to be connected to an external fluid cooling system, and an insulating body surrounding the electrical conductor. A method includes cooling the high voltage bushing by connecting the electrical conductor to an external fluid cooling system.

Cooling of high voltage devices

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

Growing community of inventors

Ludvika, Sweden

Dan Gustavsson