Unterbrechereinheit für Gasisolierte Hoch- oder Mittelspannungseinrichtung

Details

Veröffentlichungs-Nr.

EP4383306

Aktenzeichen

EP22212641

Anmeldetag

9. Dezember 2022

Veröffentlichung

13. August 2025

Erteilung

13. August 2025

Rechtsraum

EP

IPC

H01H33/74H01H33/98// H01H33/70H01H33/56H01H9/30

Abstract

The invention relates to an interrupter unit (10) for a gas-insulated high or medium voltage device comprising a first arcing contact (12) and a second arcing contact (14), wherein at least one of the arcing contacts (12,14) is axially movable along a switching axis (16), a heating channel (18) for guiding an arc extinguishing gas from a heating volume (20) to an arcing region (22) formed between the first arcing contact (12) and the second arcing contact (14), wherein the interrupter unit (10) comprises in a transition region (24) of the heating volume (20) to the heating channel (18) a flow guiding element (26), wherein a cross section of the flow guiding element (26) along a plane comprising the switching axis (16) comprises a closed shape, and wherein an aspect ratio of a convex hull (44) of the closed shape is in between 1:3 to 3:1.Furthermore, the invention relates to a gas-insulated high or medium voltage device comprising the above interrupter unit (10) and further an arc extinguishing gas.

Anmelder

Firma

Hitachi Energy Ltd

Land

🇨🇭 Schweiz

Fachgebiete