Multiple current-limiting circuit breaker with electrodynamic repulsion
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United States of America Patent
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-
Nov 21, 1995
Grant Date -
N/A
app pub date -
Mar 21, 1994
filing date -
Apr 7, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multipole circuit breaker having a movable contact for each pole, the movable contact being biased by a spirally-wound spring including a feeler part which slides on a bearing surface of the movable contact to modify the application point of a pressure force P in a second active repulsion position, resulting in a decrease of the restoring torque before operation of the mechanism. The movable contact is forked-shaped and is articulated on an eccentric spindle parallel to the rotation axis of the bar. The spirally-wound spring is mounted to float in the recess of the bar, and comprises two helicoidal wire windings.
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