SYSTEM OF SWITCHING DEVICES Russian patent published in 2017 - IPC H01H33/91 

FIELD: electricity.

SUBSTANCE: system of switching devices has the breaker unit (2) provided with the first and the second switching contact elements (7, 8, 9, 10), which can move relative to each other. On the switching section, in which the electric arc can burn, the switching gas channel starts, that passes through the breaker unit (2) and connects the switching section to the area around the breaker unit (2). Said channel in certain sections is limited by the elements embracing one another similar to the annular channel, wherein, as an element, the first component (17) clamped at the end projects with its free end into the switching section.

EFFECT: providing the improved switching gas outflow from the switching section.

18 cl, 1 dwg