0.4 kV overhead line short circuit fault point rapid searching complete device and method

The invention discloses a 0.4 kV overhead line short-circuit fault point rapid searching complete device and method, and the device comprises a signal generation device, a signal collector, and a signal receiver, wherein the signal generation device is connected with a low-voltage line, and the signal generation device is provided with an insulation remote measurement function module and a pilot frequency current signal generation module; the insulation remote measurement function module is used for determining a short-circuit phase, and the pilot frequency current signal generation module isused for inputting a pilot frequency current signal to the two-phase fault line; the signal collector is used for detecting a pilot frequency current signal on any phase of the low-voltage line and transmitting a detection result to the signal receiver; and the signal receiver is used for receiving the current detection signal of the signal collector and displaying the current detection signal onthe main interface. Compar