Electrical circuit breaker with rotating arc and...

Details Electrical circuit breaker with rotating arc and... Electrical circuit breaker with rotating arc and...

H - Electricity

01

H

H01H 33/78 (2006.01) H01H 33/98 (2006.01) H01H 33/985 (2006.01)

Patent

CA 2043558

A three-phase circuit breaker with self-extinguishing expansion and rotating arc comprises an arc extinguishing chamber per pole housing a pair of stationary and movable contacts, a coil to rotate -the arc, and an exhaust channel in at least one contact to provide on 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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