Phase identification system comprising a phase distortion device that distorts a pair of phase voltages when the voltage amplitudes are equal

摘要

597201 Disclosed is a phase identification system for a three-phase power distribution system. The system is comprised of a power distribution station (12) and a phase detection device. The power distribution system includes a phase distortion device (13) to generate distortions (102, 104) at cross-over points of at least two pairs of three phase voltages (A, B, C). The phase detection device is configured to receive one of the three phase voltages (A, B, C) and to identify a phase of the received voltage based on a characteristic of a distortion in the received voltage.