Protection device of transformer cooling controller

The invention relates to the technical field of cooling controllers, in particular to a protection device of a transformer cooling controller, comprising: an accommodating mechanism comprising an accommodating box, a placing groove and a mounting hole arranged on the accommodating box, a rectangular groove arranged on the placing groove, and a controller body arranged on the placing groove; the limiting mechanism comprises a sliding rail arranged on the containing groove, a guide rod arranged on one side of the sliding rail, a positioning component arranged on the controller body and a bottom groove formed in the bottom of the containing box, the controller body can be effectively limited through the arrangement of the containing box, the controller body can be better protected, and the service life of the controller body is prolonged. The containing box is made of stainless steel, the protection effect of the controller body can be effectively improved, the controller body can be effectively limited through