Relay protection device for power system

The invention belongs to the related technical field of relays, and particularly relates to a relay protection device for an electric power system, which comprises a shell, an opening is formed in the upper part of the shell, relays are fixedly connected to two side walls, below the opening, of the shell, a rotating rod is rotatably connected in the upper wall of the shell, and the rotating rod is fixedly connected with the shell. A motor is arranged on the side wall of the shell, and an output shaft of the motor is fixedly connected with the rotating rod; and the cleaning assembly comprises a reciprocating threaded rod, a reciprocating threaded sleeve, a fixing rod and a cleaning rod, and the rotating rod is fixedly connected with the reciprocating threaded rod. By arranging the transmission assembly and the air blowing assembly, air flow on the two sides of the relay is accelerated, the temperature of the relay is prevented from being too high, the service life of the relay is prolonged, by arranging the cl