Online monitoring device for state of overhead line system tension compensation device

The utility model provides an online state monitoring device for a tension compensation device of an overhead line system, and relates to the field of power supply overhead line system detection. The online monitoring device for the state of the overhead line system tension compensation device comprises a shell, a rotating disc is rotationally connected to the interior of the shell, a notch is formed in the edge of the shell, a clamping column is fixedly installed on the edge of the upper surface of the rotating disc, a center shaft is fixedly installed at the position, located in the notch, of the shell, and a swing part is rotationally connected to the outer surface of the center shaft. According to the online monitoring device for the state of the net touching tension compensation device, a fixed table is connected with a balance weight, a connecting frame is connected with a supporting frame, the balance weight moves, a swing rod rotates to drive a rotating disc to rotate, and therefore the length of a co