Abb Schweiz Ag

Dennis Soasti

Cecil Rivers

David Joseph Lituchy

A GFCI includes a current sensor system providing a current sensor signal indicating a leakage current of the AC power system. At least one signal conditioning channel conditions the current sensor signal to provide a conditioned current sensor signal. An integrated circuit-based controller is configured to receive the conditioned current sensor signal. The integrated circuit-based controller is configured to execute instructions stored in at least one nontransitory memory medium to determine at least one frequency value and at least one magnitude value of the conditioned current sensor signal, evaluate a trip condition in response to the at least one frequency value and the at least one magnitude value, and provide a fault trip signal in response to evaluation of the trip condition. A circuit breaker mechanism is configured to open a circuit of the AC power system in response to the fault trip signal.

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Atlanta, GA, United States of America

Dennis Soasti