Phase detectors or phase sequence indicators are used to determine the phase sequence (A-B-C or C-B-A) or direction of rotation in three-phase electric circuits (A-B-C is clockwise rotation). The correct operation of some measuring instruments and automatic control devices also depends on the phase sequence.
The clamp-type non-contact phase detector is designed for phase detection, live wire examination, power inspection, phase loss judgment, finding breakpoints, and positioning breakpoints.