ARC EXTINGUISHING UNIT AND AIR CIRCUIT BREAKER COMPRISING SAME
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United States of America Patent
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Issued Date -
Jul 4, 2024
app pub date -
Apr 22, 2022
filing date -
Apr 27, 2021
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Abstract
Disclosed are an arc extinguishing unit and an air circuit breaker comprising the same. An arc extinguishing unit according to an embodiment of the present disclosure includes a gassing material that generates molecules that extinguish an arc when heat generated by the arc is applied. Accordingly, the arc can be extinguished quickly. In addition, the arc extinguishing unit includes an outer support plate made of glass fiber and has a mechanically and thermally strong side plate part, so that burnout due to arc heat can be prevented.
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