Schneider Electric Usa, Inc.

Juan Ignacio Melecio

Jeremy D Schroeder

Joseph Hall

Kenneth Riehl

Jacob B Guelff

Skylar Frances Wetzel

Leonardo Rangel Martinez

A circuit breaker assembly can include a mechanism configured to be actuated by an operator. The mechanism can be configured to move between a first position and a second position to change a state of a contactor between a closed state and an open state. The circuit breaker assembly can include a reluctance sensor system operatively connected to the mechanism and configured to determine a position and/or a motion of the mechanism as a function of magnetic reluctance. The reluctance in the reluctance sensor system can change as a function of mechanism position.

Circuit breaker mechanism position sensor systems

A ground fault circuit interrupter (GFCI) can include a current transformer (CT) comprising a single core, a first winding wound around the single core, and a second winding wound around the single core. The GFCI can include a ground fault (GF) detection module operatively connected to the first winding to receive signals from the first winding and configured to determine whether a line-to-ground fault exists. The GFCI can also include a GN stimulus operatively connected to the second winding to provide a GN stimulus signal to the second winding. The GFCI can also include a grounded neutral (GN) detection module operatively connected to second winding and configured to receive signals from the second winding to determine whether a neutral-to-ground fault exists.

Ground fault circuit interrupter (GFCI) devices, systems, and methods

A ground fault sensing circuit system includes a current transformer having a first winding and a second winding on opposite halves of the current transformer, outputting first and second signals, each winding coupled to a processor that determines information about respective currents in conductors monitored by the current transformer, based on a combination of the first and second signals. In another embodiment, the current transformer has a third winding wrapped continuously around both halves of the current transformer, overlapped with the first and second windings, the third winding outputting a third signal coupled to the processor, which determines information about respective currents in conductors monitored by the current transformer, based on a combination of the first, second, and third signals.

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North Liberty, IA, United States of America

Juan Ignacio Melecio