Abstract: A method for locating an electrical arc fault upstream or downstream of an electrical protection device connected in series in an electrical circuit between an electrical energy source and an electrical load, the source supplying a supply current to the electrical load. The method includes the measurement of several electrical quantities linked to the supply current, the detection of a simultaneous variation of at least two electrical quantities linked to the supply current, the confirmation of the presence of the arc fault, and the determination of the position of the arc fault upstream or downstream of the protection device. Also, a protection device can implement such a method.

Abstract: An arc fault detection system samples a high frequency signal on a power line sequentially at different frequency regions according to a frequency hopping sequence, which is repeated a number of times over a predefined period. The different frequency regions include at least one region with a carrier for power line communication on the power line and at least one region without a carrier for power line communication on the power line. The system obtains energy measurements for each frequency region based on the sampled signals, computes an energy level for each frequency region based on the measurements for each region, and assigns a binary value to each region according to the corresponding energy level. The binary value represents a presence or absence of signal content in the frequency region. The system determines a presence or absence of an arc fault based on the binary values for the frequency regions.

Abstract: An arc fault detection system samples a high frequency signal on a power line sequentially at different frequency regions according to a frequency hopping sequence, which is repeated a number of times over a predefined period. The different frequency regions include at least one region with a carrier for power line communication on the power line and at least one region without a carrier for power line communication on the power line. The system obtains energy measurements for each frequency region based on the sampled signals, computes an energy level for each frequency region based on the measurements for each region, and assigns a binary value to each region according to the corresponding energy level. The binary value represents a presence or absence of signal content in the frequency region. The system determines a presence or absence of an arc fault based on the binary values for the frequency regions.

Abstract: An arc fault detection system samples a high frequency signal on a power line sequentially at different frequency regions according to a frequency hopping sequence, which is repeated a number of times over a predefined period. The different frequency regions include at least one region with a carrier for power line communication on the power line and at least one region without a carrier for power line communication on the power line. The system obtains energy measurements for each frequency region based on the sampled signals, computes an energy level for each frequency region based on the measurements for each region, and assigns a binary value to each region according to the corresponding energy level. The binary value represents a presence or absence of signal content in the frequency region. The system determines a presence or absence of an arc fault based on the binary values for the frequency regions.

Abstract: A method for locating an electrical arc fault upstream or downstream of an electrical protection device connected in series in an electrical circuit between an electrical energy source and an electrical load, the source supplying a supply current to the electrical load. The method includes the measurement of several electrical quantities linked to the supply current, the detection of a simultaneous variation of at least two electrical quantities linked to the supply current, the confirmation of the presence of the arc fault, and the determination of the position of the arc fault upstream or downstream of the protection device. Also, a protection device can implement such a method.

Abstract: An arc fault detection system samples a high frequency signal on a power line sequentially at different frequency regions according to a frequency hopping sequence, which is repeated a number of times over a predefined period. The different frequency regions include at least one region with a carrier for power line communication on the power line and at least one region without a carrier for power line communication on the power line. The system obtains energy measurements for each frequency region based on the sampled signals, computes an energy level for each frequency region based on the measurements for each region, and assigns a binary value to each region according to the corresponding energy level. The binary value represents a presence or absence of signal content in the frequency region. The system determines a presence or absence of an arc fault based on the binary values for the frequency regions.