Areva T&d Ag

Areva T&d Sa

Alstom Technology Limited

Areva T & D Sas

Karsten Pohlink

Jean-Pierre Dupraz

Yannick Kieffel

Jean-Luc Bessede

Hugo Hiltbrunner

Christian Tschannen

Gerardo Palmieri

Andre Doessegger

Ernst Andermatt

Robert Lüscher

Supports for high or medium voltage electrical conductors () at potentials different from the potential of an enclosure () are supported by disc-shaped parts () made from thermoplastic polyester, for example terephthalate polyethylene. The discs (and) provide good insulation without largely disturbing the electrical field around the conductors due to their fairly low dielectric constant. They are also compatible with use under SFgas.

Insulating support disc for a conductor and electrical assembly comprising this disc

A highly temperature-stable capacitor for taking measurements on a high-voltage line, said capacitor having a high-voltage electrode (HT), an annular printed circuit (CI) surrounding said high-voltage electrode (HT) coaxially and having at least one electrically conductive track that forms a low-voltage electrode (BT), said capacitor being characterized in that the printed circuit (CI) also has at least one temperature-sensitive resistor (TH).

Highly temperature-stable capacitor for taking measurements on a high-voltage line

A disconnection device is designed to separate a first portion of an electrical circuit electrically from a second portion of said circuit, the disconnection device including: at least one pair of contacts, one of which contacts is a moving contact, the pair of contacts having an open state and a closed state and a flexible conductor fixed at one end to the moving contact and serving to be fixed at the other end to one of the portions of the electrical circuit. The conductor comprises a flexible tube that is electrically conductive, at least at a surface portion thereof, and that has bending stiffness that is low enough to enable it to bend without kinking, and torsion stiffness that is high enough to enable it to take up a shape and a position that are substantially reproducible at least in the closed state. The device is used in particular in gas-insulated high-voltage electricity substations.

Electrical energy disconnection device

Growing community of inventors

Unterentfelden, Switzerland

Karsten Pohlink