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Electrical a self-extinguishing expansion circuit breaker and a rotation of the arc.
Electrical a self-extinguishing expansion circuit breaker and a rotation of the arc.
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机译:电气自动熄灭扩展断路器并旋转电弧。
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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.
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