Patent ID: 8389886
Filing Date: 2013-03-05
Classification: H01H

Abstract:
1. A method for cooling a quenching gas in an electrical breaker device for electrical power supply systems, the breaker device comprising: a breaker chamber which is enclosed by a breaker chamber housing, wherein when a switching operation hot quenching gas flows from an arc-quenching zone to an exhaust which is filled with cold gas, wherein the hot quenching gas is split up into at least two partial gas flows, wherein a) at least part of the cold gas is intermediately stored in an exhaust region, and a first partial gas flow is guided to bypass the intermediately stored cold gas and flows off into the breaker chamber, and with an aid of a second partial gas flow, the intermediately stored cold gas is forcibly displaced out of the exhaust region, wherein b) the first partial gas flow and the intermediately stored cold gas are mixed with one another in a mixing zone before flowing off into the breaker chamber housing, and wherein c) a mixing channel is present downstream of the mixing zone and upstream of the inlet into the breaker chamber housing, and d) the first partial gas flow is additionally mixed in the mixing channel with the intermediately stored cold gas and with a precooled second partial gas flow and a further partial gas flow.