Disconnector device for surge arrester and a protection assembly comprising a surge arrester connected to such a disconnector device
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United States of America Patent
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Oct 22, 2019
Grant Date -
Dec 20, 2018
app pub date -
Aug 29, 2018
filing date -
Feb 29, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A disconnector device for a surge arrester is provided. The disconnector device includes: a housing encompassing a cavity; a disconnector provided inside the cavity, having a first terminal connectable to the surge arrester, a second terminal connectable to ground, a movable member provided at the second terminal and being fitted to the cross section of the cavity, and a disconnector cartridge. The member is movably arranged such in the housing that once the disconnector operates, the movable member is propelled inside the cavity towards an end of the cavity. The housing has ventilation openings connecting the cavity to an outside of the disconnector device for releasing gases from the operating disconnector cartridge. These ventilation openings are dimensioned such that no particles of harmful size that are potentially capable of igniting a fire can pass the ventilation openings.
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