Nozzle for high or medium voltage circuit breaker
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United States of America Patent
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Nov 29, 2022
Grant Date -
Aug 26, 2021
app pub date -
Aug 28, 2019
filing date -
Aug 30, 2018
priority date (Note) -
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Abstract
A gas-insulated high or medium voltage circuit breaker comprising: a first arcing contact and a second arcing contact, wherein at least one of the two arcing contact is axially movable along a switching axis, wherein during a breaking operation, an arc between the first arcing contact and the second arcing contact is formed in a arcing region; a buffer housing defining a pressurizing volume; a nozzle arranged at a nozzle side of the pressurizing volume, the nozzle defining a channel connected to the pressurizing volume and directed to the arcing region, for blowing an arc extinguishing gas towards the arcing region during the breaking operation, the nozzle comprising a nozzle front face facing towards the interior of the pressurizing volume.
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