ELECTRICAL SYSTEM WITH ARC FAULT DETECTION

摘要

A unique electrical system includes a first electrical component and a second electrical component. A conductor electrically couples the first electrical component with the second electrical component. A sensor is constructed to sense an AC power flow in the conductor and output an AC signal proportional to the AC power flow. A band-pass filter is in electrical communication with the sensor and constructed to receive and filter the AC signal and to generate an AC voltage proportional on the AC signal. A controller is in electrical communication with the band-pass filter, and is operative to receive and sample the AC voltage. The controller is configured to execute program instructions to sum sequential AC voltage values received from the band-pass filter over a sample time period, and to determine whether an arc fault has occurred based on the summed AC voltage values.

主权项

1. An electrical system, comprising:
a first electrical component; a second electrical component; a conductor electrically coupling the first electrical component with the second electrical component; a sensor constructed to sense an AC power flow in the conductor and output an AC signal proportional to the AC power flow; a band-pass filter in electrical communication with the sensor and constructed to receive and filter the AC signal and to generate an AC voltage proportional on the AC signal; and a controller in electrical communication with the band-pass filter, the controller being operative to receive and sample the AC voltage from the band-pass filter, and the controller being configured to sum sequential AC voltage values received from the band-pass filter over a sample time period; and to determine whether an arc fault has occurred based on the summed AC voltage values.