Circuit breaker with current limiting and high speed fault capability
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United States of America Patent
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Oct 24, 2017
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app pub date -
Jun 24, 2016
filing date -
Jun 25, 2015
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Abstract
A circuit breaker arraignment includes at least two trip mechanisms. The first trip mechanism acts to immediately trip to open contacts of the circuit breaker upon reaching a first threshold current level, and the second trip mechanism acts to trip to open the contacts once both a second current threshold is reached and a time delay has elapsed. The contacts are moved by a linkage assembly that is held under mechanical advantage such that when acted on by one of the two trip mechanisms, the mechanical advantage is released to rapidly open the contacts.
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