Electric switching apparatus
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Oct 6, 2016
filing date -
Dec 17, 2015
priority date (Note) -
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Abstract
An electric switching apparatus including fixed contacts respectively supported by an upstream support and a downstream support and electrically connected to an upstream power line and to a downstream power line, respectively, the fixed contacts cooperating with respective upstream and downstream mobile contacts, each of the mobile contacts being supported by a support, the supports movable simultaneously in translation by a contact carrier controlled by an actuator. This apparatus includes a device for transforming, during a device opening operation in the presence of a microweld between one of the mobile contacts and the associated fixed contact, the movement in translation of the support associated with the mobile contact in a combined movement in translation and rotation of the mobile contact so as to exert at the points of contact between the mobile contact and the fixed contact a shear force capable of breaking the aforementioned microweld.
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