Electrical contact arrangement and air insulated medium voltage circuit breaker including the electrical contact arrangement
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United States of America Patent
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Feb 16, 2016
Grant Date -
Jun 13, 2013
app pub date -
Feb 13, 2013
filing date -
Aug 13, 2010
priority date (Note) -
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Abstract
An electrical contact arrangement for medium to high voltage applications includes a contact arm having a distal end section on which a circular shaped annulus arrangement having several axially and parallel directed contact fingers is arranged. The contact fingers are pressed on the contact arm via respective radially directed connection sections by a spring ring which is peripherally arranged around the contact fingers. The distal end section of the contact arm includes a first ring-shaped surface and an adjacent second ring-shaped surface, so that the connection section of each contact finger is pressed to at least both the first and second ring-shaped surfaces.
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