Loading patent…
AssigneeHubbell Incorporated
InventorsJohn E. Brower, James Casey Musson, William Vernon Miller, III, Joseph Michael Meady, Joseph Edgar Dupuis, Brian S. Chia
Estimating the term…
A circuit interrupting device including a phase conductor, a neutral conductor, an interrupter configured to disconnect the phase conductor and the neutral conductor from a load, and a sensor configured to generate a signal indicative of current flowing through the phase conductor and the neutral conductor. The circuit interrupting device further includes a microcontroller that includes an electronic processor and is electrically connected to the first sensor and the interrupter. The microcontroller is configured to generate a reference signal, receive a first signal from the sensor, determine whether a difference between a voltage of the first signal and a voltage of the reference signal exceeds a threshold, determine whether the microcontroller has performed a ground fault self-test, and activate the interrupter when the difference exceeds the threshold and the microcontroller has not performed the ground fault self-test.
A circuit interrupting device comprising:
A method of operating a circuit interrupting device that includes a phase conductor, a neutral conductor, an interrupter configured to disconnect the phase conductor and the neutral conductor from a load, a sensor configured to generate a signal indicative of current flowing through the phase conductor and the neutral conductor, and a microcontroller electrically connected to the sensor and the interrupter, the microcontroller including an electronic processor, the method comprising:
Dependencies are inferred from the claim text.