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Electrical a self-extinguishing expansion circuit breaker and a rotation of the arc.

机译:电气自动熄灭扩展断路器并旋转电弧。

摘要

A three-phase circuit breaker with self-extinguishing expansion and rotating arc structures comprises an arc extinguishing chamber per pole and housing a pair of contacts, one stationary and one moveable, a coil to rotate the arc, and an exhaust channel in at least one contact to provide an opening a communication and gas outflow between the extinguishing chamber and the expansion volume of an enclosure filled with SF6. The extinguishing chamber has a square or rectangular cross-section to resorb the gas plug after braking of the gas rotation movement, and improve stirring of the gas in the extinguishing chamber.
机译:具有自熄灭扩展和旋转电弧结构的三相断路器,包括每个极的灭弧室并容纳一对触头,一个固定触点和一个可动触点,旋转电弧的线圈以及至少一个排气通道接触以在灭火室和装有SF6的外壳的膨胀体积之间提供连通和气体流出的开口。灭火室具有正方形或矩形的横截面,以在制动气体旋转运动之后吸收气体塞,并改善灭火室内的气体搅拌。

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