Hitachi Energy Switzerland Ag

Abb Power Grids Switzerland Ag

Abb Schweiz Ag

Christoph Reutlinger

Patrick Stoller

Bernardo Galletti

Rudi Velthuis

Arthouros Iordanidis

Emmanouil Panousis

Branimir Radisavljevic

Joerg Lehmann

Angelos Garyfallos

Daniel Over

Valeria Teppati

Dariusz Maciocha

Jörg Lehmann

The present disclosure provides a gas-insulated high or medium voltage circuit breaker including a first arcing contact and a second arcing contact, wherein at least one of the two arcing contacts is axially movable along a switching axis, wherein during a breaking operation, an arc between the first arcing contact and the second arcing contact is formed in an arcing region; a nozzle including a channel directed to the arcing region, for blowing an arc-extinguishing gas to the arcing region during the breaking operation; a diffuser portion adjacent to the nozzle, for transporting the gas from the arcing region to a region downstream of the diffuser portion; a buffer volume directly downstream of the diffuser portion; and an enclosure confined within a housing of the circuit breaker.

Gas-insulated high or medium voltage circuit breaker

The present disclosure provides a gas-insulated high or medium voltage circuit breaker including a first arcing contact and a second arcing contact, wherein at least one of the two arcing contacts is axially movable including a first and a second state of motion along a switching axis, wherein during a breaking operation, an arc between the first arcing contact and the second arcing contact is formed in an arcing region; a nozzle including a channel directed to the arcing region, for blowing an arc-extinguishing gas to the arcing region during the breaking operation; a diffuser adjacent to the nozzle, for transporting the gas from the arcing region to a region downstream of the diffuser; a buffer volume directly downstream of the diffuser, and an enclosure substantially surrounding the buffer volume circumferentially.

Growing community of inventors

Bern, Switzerland

Christoph Reutlinger