General Electric Technology Gmbh

Nicolas Toquet

Roger Ledru

Emilien Pierres

Laurent Boget

Jean-Baptiste Jourjon

Damien Cartier-Lange

Loic Beaudoin

Cyrille Reyx

A medium-, high-, or very high-voltage circuit breaker (), comprising at least one arc-control chamber () and an outer casing () in which the arc-control chamber () is arranged. In the invention, the circuit breaker includes sealing ring () for sealing an opening () in a discharge cap () of the arc-control chamber (), the ring () being movable between a sealing position and a retracted position in which they allow the gas to pass, the circuit breaker being configured in such a manner that in the closed position, the sealing ring () are in their retracted position, and in such a manner that passage from the retracted position to the sealing position takes place during an operation of opening the circuit breaker.

Circuit breaker containing a gas escape hood with sealable opening

The invention relates to a medium-, high-, or very high-voltage circuit breaker, comprising at least one arc-control chamber and an outer casing in which the arc-control chamber is arranged. The circuit breaker includes a discharge cap () forming a portion of the outer wall external of the arc-control chamber (), the discharge cap being situated inside the outer casing and internally defining a gas-flow chamber (). In the invention, the discharge cap () includes at least one portion (') that is movable under the effect of the gas pressure in the gas-flow chamber (), in such a manner that its volume is extensible.

Circuit breaker equipped with an extensible exhaust cover

Growing community of inventors

Saint Thibaud de Couz, France

Nicolas Toquet