Electric power measurement detector

The utility model relates to the field of electric energy metering, and discloses an electric power metering detector. In the application, an air inlet is formed in the outer surface of the right side of the instrument box body, a mounting groove is formed in the outer surface of the right side of the instrument box body, a heat removal fan is arranged in the mounting groove, a protective net is connected and mounted on the outer side of the heat removal fan, and bolts are mounted in the heat removal fan, the protective net and the instrument box body in a penetrating manner; the air inlet is used for enabling external air to enter the instrument box body, the filter screen can filter external dust, heat in the instrument box body can be discharged by starting the heat discharge fan, the protective net is used for preventing workers from being injured due to the fact that the workers make contact with fan blades of the heat discharge fan, and the heat discharge fan and the protective net can be fixed through