Gas-filled spark gap with high follow current extinction capacity
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United States of America Patent
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Issued Date -
Jun 20, 2024
app pub date -
Dec 8, 2023
filing date -
Dec 8, 2023
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Abstract
A gas-filled spark gap 2 for the protection of an electrical installation includes a gastight casing 4 and two elongate electrodes 13, 14 delimiting between them an inter-electrode space. The inter-electrode space includes successively a striking chamber 17 and an arc-extinguishing chamber 20 for extinguishing the electrical arc. The arc-extinguishing chamber 20 includes mutually spaced divider plates 29. The gas-filled spark gap 2 also includes two connecting terminals 11, 12 accessible from outside the casing 4 and intended to enable electrical connection of the gas-filled spark gap 2 to the electrical installation. The two connecting terminals 11, 12 are respectively electrically connected to the two electrodes 13, 14. Finally, the gas-filled spark gap 2 includes an inert gas trapped in the casing 4.
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