Low-voltage transformer area line loss segmentation troubleshooting device and method

The invention provides a low-voltage transformer area line loss segmentation troubleshooting device and method. The device comprises a line loss collection device, a plurality of buckle type current transformers and a segmentation metering gateway meter, wherein the line loss collection device is used for communicating with a system master station, the buckle type current transformer is used for measuring a real-time current value on each phase, and the segmentation metering gateway meter is used for calculating electricity consumption and displaying and checking troubleshooting data. The low-voltage transformer area line loss segmentation troubleshooting method comprises the steps that a branch line is selected and divided into two segments according to a key position, then a low-voltage transformer area line loss segmentation troubleshooting device is installed at the midpoint position, collected data are obtained, the real-time total electric quantity is automatically calculated, finally the line loss rate