Schneider Electric Industries Sas

Schneider Electric Sa

Merlin Gerin

Jean-Claude Faye

Georges Bernard

Peter Malkin

Pierre LeClercq

François Gentils

Raymond V Bresson

Paul Glenat

Francois Gentils

Patrick Chevallier

Stéphane Giraud

Dominique Serve

Joseph Maftoul

Pierre Chevrier

An electrical equipment containment is arranged on a cooling enclosure opening out onto the outside. An outlet orifice makes the containment communicate with the cooling enclosure. This orifice is closed by a membrane or a check valve. A grate separates the cooling enclosure into an upper volume and a lower volume. The grate supports a layer of solid granular material the upper surface whereof remains free. This material is preferably porous and also comprises dusts. In the event of an internal electric arc, the shock wave escaping from the containment is dampened by the surface deformation of the layer of solid material. The incandescent particles projected via the opening are stopped by the layer of solid material. The hot gases are cooled as they flow through the material, causing a cloud of dust contributing to preventing any post-combustion.

Gas-insulated electrical installation provided with a device for dissipating energy produced by an electric arc

High voltage hybrid circuit-breaker

A puffer SF6 circuit breaker comprises a pair of separable contacts with formation of a breaking gap, a piston-cylinder assembly to compress the gas when the movable contact is actuated to the open position, and a puffer nozzle designed to channel the gas outflow to the breaking gap so as to cool the arc by forced convection. The nozzle is totally or partially made of transparent or translucent insulating material to allow a part of the energy to be removed by radiation.

Gas-blast circuit breaker

Growing community of inventors

Seyssinet, France

Jean-Claude Faye