The invention provides a pressing plate anti-misoperation cover for a
relay protection test, and relates to an anti-misoperation device. When the
relay protection test is conducted in an incomplete power failure state, careful confirmation is needed, once misoperation is generated, primary equipment of a
power substation is tripped, and even the whole substation loses power. The pressing plate anti-misoperation cover comprises an anti-misoperation cover body and an anti-misoperation cover fixing frame. The anti-misoperation cover body is detachably connected to the anti-misoperation cover fixing frame and is a transparent insulator shaped like a left square bracket, and the anti-misoperation cover body comprises a front plate, connecting plates located on the upper side and the lower side of the rear face of the front plate, positive
electrode conductors and negative
electrode conductors. Light sources are embedded into the middle of the front plate, the positive
electrode conductors and the negative electrode conductors are connected to the upper sides and the lower sides of the light sources respectively, the
tail ends of the positive electrode conductors and the
tail ends of the negative electrode conductors are located on the connecting plates, and the anti-misoperation cover fixing frame is of a hollow
square shape and provided with a power source, a positive electrode connecting end and a negative electrode connecting end, wherein the positive electrode connecting end is connected with the positive electrode of the power source, the negative electrode connecting end is connected with the negative electrode of the power source, and the positive electrode connecting end and the negative electrode connecting end are respectively of a long strip shape. By the adoption of the technical scheme, safety of the
relay protection test is guaranteed.