Abb Research Ltd.

Abb Technology Ag

Judith Kessler

Thomas Alfred Paul

Navid Mahdizadeh

Lise Donzel

Per Skarby

Patrick Stoller

Javier Mantilla

Oliver Cossalter

Markus Abplanalp

Max-Steffen Claessens

Markus Bujotzek

Alexey Sokolov

Mathias Ingold

Roberto Cameroni

Davide Riboni

A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.

Dielectric insulation medium

A high voltage switching device includes a current interruption assembly having at least one vacuum chamber, a fixed contact assembly having a first fixed contact and a second fixed contact positioned inside the vacuum chamber, and first and second movable-contact assemblies including a first movable contact and a second movable contact, respectively. A single mechanism actuates the first and second movable-contact assemblies between a first position and second position. In the first position, the first and second movable contacts are electrically coupled with the first and second fixed contacts, respectively. And in the second position, the first and second moveable contacts are electrically separated the same. The first movable contact and the second movable contact move, along a reference axis, one towards the other or away from the other based on the actuating mechanism.

High-voltage switching device

A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140&#xb0; C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.

Growing community of inventors

Oberrohrdorf, Switzerland

Judith Kessler