Gopower com The rtu remote terminal unit can record the first 4 cycles of the faulty line and 8 cycles after the failure during the fault recording of the device, and record 64 points for each cycle. Use the device maintenance tool to perform detailed analysis on... moreThe rtu remote terminal unit can record the first 4 cycles of the faulty line and 8 cycles after the failure during the fault recording of the device, and record 64 points for each cycle. Use the device maintenance tool to perform detailed analysis on the recording files, and the waveform details can be seen at a glance.