EP 0022708 B1 19831005 - ARC QUENCHER FOR MULTI-POLE LOW-TENSION CIRCUIT BREAKER WITH MOULDED CASING
Title (en)
ARC QUENCHER FOR MULTI-POLE LOW-TENSION CIRCUIT BREAKER WITH MOULDED CASING
Publication
Application
Priority
FR 7918315 A 19790712
Abstract (en)
[origin: EP0022708A1] 1. Arc quencher chamber for multi-pole low-tension circuit breaker with moulded insulating casing (12) comprising per pole : - a pair of separable stationary (20) and movable (22) contacts, - a driving mechanism for moving between the open and closed positions the movable contact (22), - metal plates (24) for cooling the arc drawn between said contacts when they separate upon tripping of said circuit breaker, - an extinction gas venting opening (38) provided in the casing (12) near the output of the chamber (16), - a deionizing device (40) located near said venting opening for cooling the extinction gas blown outsides, characterized by the fact that the deionizing device comprises a monobloc venting screen (41) with a porous structure formed by balls or corns agglomerated by a sintering or heating process and having a size included between 0,5 mm and 1,5 mm corresponding to a predetermined granulometry of said porous structure having extinction gas venting intervals, the ball material comprising a metal or an alloy.
IPC 1-7
IPC 8 full level
H01H 9/34 (2006.01)
CPC (source: EP)
H01H 9/342 (2013.01)
Designated contracting state (EPC)
BE CH DE GB IT LI NL SE
DOCDB simple family (publication)
EP 0022708 A1 19810121; EP 0022708 B1 19831005; DE 3065153 D1 19831110; FR 2461349 A1 19810130; FR 2461349 B1 19820219
DOCDB simple family (application)
EP 80401023 A 19800704; DE 3065153 T 19800704; FR 7918315 A 19790712