Multi-chamber arc quenching device with nozzle-chaped contacts

Details Multi-chamber arc quenching device with nozzle-chaped contacts Multi-chamber arc quenching device with nozzle-chaped contacts

H - Electricity

01

H

306/233

H01H 33/98 (2006.01)

Patent

CA 1039781

A B S T R A C T An improved method for quenching an arc in an AC circuit breaker having an arc chamber in which the arc rotates in a quenching medium between open electrodes having ends close together in which the arc is caused to generate during its rotation, through a heating of the quenching medium, an over-pressure which is maintained beyond the zero crossing of the AC current with the gas flow produced by the over-pressure used for blasting the arc in the nozzle. Various embodiments for use in medium and high voltage switching installations which permit the switching of large currents with a simple and inexpensive arrangement are illustrated.

204921

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