SYSTEM OF SWITCHING GAS COOLING ARRANGEMENT AND PARTICLE CAPTURE ARRANGEMENT

摘要

The invention relates to a system of a switching gas cooling arrangement and a particle capture arrangement for switching gases (30) which appear after a short-circuit switching procedure in electrical service devices, in particular in low-voltage power switches. The system is formed by a switching gas cooling arrangement and a particle capture arrangement. Downstream of the flow path of the switching gases (30) issuing from at least one switching chamber outlet window (15), a switching gas cooling arrangement (10) is arranged in a blow-out chamber. In the space behind the at least one switching chamber outlet window (15) and prior to entry of the switching gases (30) into the switching gas cooling arrangement (10), there is arranged a flow element (20) around which the switching gases can flow and which has a cross section (16'') which corresponds to or is greater than the cross section (16') of the switching chamber outlet window (15). The flow elements (20) act as a particle capture arrangement and thus as a protection device for the switching gas cooling arrangement.