H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/229
H01H 33/98 (2006.01)
Patent
CA 1249319
HIGH-VOLTAGE ELECTRIC SWITCH WITH ARC EXTINGUISHING DEVICE USING SELG-GENERATION OF A QUENCHING PRESSURE ABSTRACT OF THE DISCLOSURE A high-voltage electric switch is proposed comprising an arc extinguishing device using self-generation of a quenching fluid pressure. Inside a container there is formed a compression chamber surrounded by fixed main contacts cooperating with mobile main contacts carried by a movable rod. Movable to a limited extent by said rod during its closure travel against elastic means, there are disposed in said chamber a first pair of arcing contacts for forming an auxiliary arc the main purpose of which is to generate a pressure in the quenching fluid contained in the compression chamber, and a second arcing contact which cooperates with the rod in order to form a main interruption arc which is blasted at the appropriate time by the thus comprised fluid, the arcing contacts being in series with each other and in parallel with the main contacts.
480752
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
S.a.c.e. S.p.a. Costruzioni Elettromeccaniche
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