Abstract: To ensure the fire safety and put out a fire in time, a fire- fighting robot system is designed for substations. The system contains a robot and a supply equipment of fire medium. Adopted track chassis, the robot is equipped with infrared thermal imager, visible light camera, distance measuring sensor, etc. The fire apparatus on the robot can be adjusted vertically.Water, foam and superfine dry powder can be selected to deal with a fire. Dry powder is carried by the robot. Water and foam are supplied by the supply equipment. When fire alarm appears, the fire can be judged by the real time data acquired from the fire scene, and the movement of the robot can be controlled by the computer or remote control system. According to the fire behavior, water, foam or ultra- fine dry powder would be selected to put out a fire or cool down the devices in time. The surface temperature of the robot can be cooled down by a self-spraying system, so that the continuous working ability can be ensured in high temperature.

Key words: multi- functional, tracked, transformer substation;fire-fighting robot