Can investigate electricity inspection appearance of low -voltage power line way electric leakage point

The utility model discloses a can investigate electricity inspection appearance of low -voltage power line way electric leakage point, including host computer and PAD main part, the soldering has fourways current input interface, current sample amplifier circuit, phase -locked loop circuit and frequency measurement, AD analog to digital conversion circuit and DSP2812 data processing on the circuit board of host computer inside, is equipped with terminal display and control module on the circuit board of PAD main part inside, is connected with the wiring board that links to each other with four ways current input interface on the outer wall of host computer. This can investigate electricity inspection appearance of low -voltage power line way electric leakage point, current clamp corresponds the wiring board that inserts the host computer, voltage test line corresponds input voltage binding post, through changing by AD7606 incoming signal to sample data behind current sample amplifiercircuit, send and calculat