Relay protection structure of power transmission line

The utility model relates to the technical field of relay protection structures, in particular to a relay protection structure of a power transmission line, and solves the problem that a plurality of screws are used for fixing a relay protection device in the prior art, and when the relay protection device is dismounted, a screwdriver and the like are needed for dismounting the screws, which is relatively inconvenient. A power transmission line relay protection structure comprises a relay protection device, a control cabinet for accommodating the relay protection device and a socket arranged on the control cabinet, a plurality of guide grooves are arranged in the socket, guide blocks are slidably connected to the side walls of the guide grooves, and the guide blocks are fixedly connected with the relay protection device. According to the utility model, the relay protection device and the control cabinet can be fixed without tools such as a screwdriver, the use is convenient, and the plurality of rotating bloc