EP 4125108 B1 20240131 - GAS-INSULATED HIGH OR MEDIUM VOLTAGE CIRCUIT BREAKER
Title (en)
GAS-INSULATED HIGH OR MEDIUM VOLTAGE CIRCUIT BREAKER
Title (de)
GASISOLIERTER HOCH- ODER MITTELSPANNUNGSLEISTUNGSSCHALTER
Title (fr)
DISJONCTEUR HAUTE OU MOYENNE TENSION ISOLÉ AU GAZ
Publication
Application
Priority
EP 21187695 A 20210726
Abstract (en)
[origin: EP4125108A1] The invention relates to a gas-insulated high or medium voltage circuit breaker (1) comprising:a first arcing contact (2) and a second arcing contact (3), whereby the first arcing contact (2) and/or the second arcing contact (3) is axially movable along a switching axis (4), thereby forming, during a breaking operation, an arc (5) between the first arcing contact (2) and the second arcing contact (3) in an arcing region (6),a first nominal contact (7) circumferentially surrounding the first arcing contact (2) and a second nominal contact (8) circumferentially surrounding the second arcing contact (3),a first side shield (9) and a first side cylinder (10) circumferentially surrounding the first nominal contact (7) and a second side shield (11) and a second side cylinder (12) circumferentially surrounding the second nominal contact (8),a chamber insulating tube (13) connecting the first side shield (9) and the second side shield (11) circumferentially around the arcing region (6), andat least one one-way valve (14) configured for allowing, during the breaking operation, an arc-extinguishing gas to escape from the arcing region (6) and/or to enter the chamber insulating tube (13).
IPC 8 full level
H01H 33/70 (2006.01); H01H 33/88 (2006.01); H01H 33/90 (2006.01)
CPC (source: EP)
H01H 33/7015 (2013.01); H01H 2033/888 (2013.01); H01H 2033/908 (2013.01)
Citation (examination)
EP 3087578 B1 20180228 - ABB SCHWEIZ AG [CH]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4125108 A1 20230201; EP 4125108 B1 20240131; JP 2023017709 A 20230207
DOCDB simple family (application)
EP 21187695 A 20210726; JP 2022108069 A 20220705