Electric current switching apparatus with dual magnet arc spinning extinguisher
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Mar 27, 1998
filing date -
Mar 27, 1998
priority date (Note) -
Expired
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Abstract
An electric arc extinguishing mechanism for an electric current switching apparatus employs a plurality of splitter plates in a conventional arc chute arrangement. Each splitter plate has a pair of permanent magnet structures that produce a magnetic field which interacts with the arc causing the arc to move continuously about the surface of the splitter plate until the arc is extinguished. Such movement prevents the arc energy from being concentrated in one spot which could melt the splitter plate.
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