Power grid maintenance operation grounding wire hanging state on-line detection device and method

The invention provides a power grid maintenance operation grounding wire hanging state on-line detection device and method, and belongs to the technical field of power grid maintenance operation safety. The device comprises an auxiliary grounding terminal, a power supply module, a first wire, a second wire and a current acquisition module, wherein the auxiliary grounding terminal is arranged neara grounding terminal, the power supply module is used for outputting stable voltage, the power supply module is provided with an output terminal and an input terminal, one end of the first wire is connected with the input terminal, the other end of the first wire is connected with the grounding terminal, one end of the second wire is connected with the output terminal, the other end of the secondwire is connected with the auxiliary grounding terminal, and the current acquisition module is arranged on the second wire in series and used for obtaining a loop current value. According to the detection device and method, th