Solid state circuit interrupter with solid state interlocking mechanism
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United States of America Patent
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-
Oct 3, 2023
Grant Date -
Sep 1, 2022
app pub date -
May 19, 2022
filing date -
Jan 17, 2020
priority date (Note) -
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Abstract
A system includes a first circuit breaker comprising a first solid state switch, first mechanical contacts, and a current sensor structured to sense current flowing through the first circuit breaker, and a second circuit breaker electrically coupled to the first circuit breaker and being structured to interrupt current flowing to the first circuit breaker, wherein the first circuit breaker is structured to transmit, to the second circuit breaker, a request upon detecting a failure mode, and wherein the second circuit breaker is structured to interrupt current flowing to the first circuit breaker in response to receiving the request, and the first circuit breaker is further structured to open the first mechanical contacts when the current flowing through the first circuit breaker drops to a predetermined level.
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