Circuit breakers with ground fault and overcurrent trip
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United States of America Patent
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Nov 16, 2010
Grant Date -
Oct 9, 2008
app pub date -
Mar 13, 2008
filing date -
Mar 13, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit breaker apparatus may be used to interrupt overcurrent and ground fault in a circuit. The circuit breaker apparatus may include an overcurrent coil for tripping the circuit breaker apparatus, a voltage coil also for tripping the circuit breaker apparatus located proximate to the overcurrent coil, and ground fault electronics connected to the voltage coil and structured to detect a ground fault in the circuit when the ground fault exceeds a threshold level. The ground fault electronics can be structured to send a trip signal to the voltage coil when a ground fault is detected, and the voltage coil can be structured to trip the circuit breaker apparatus when it receives the trip signal from the ground fault electronics.
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