Abstract: A dynamic video image surveillance system for highvoltage switch was introduced. The system was designed specially to adapt to the structure features and operation characteristics of highvoltage switch. In this system, the highspeed infrared camera technique was used, which can monitoring realtime the highspeed sharp image of the internal structure of the highvoltage switch, can record, track, analyze and identify the video image in long term. The video surveillance system will play an important role for ensuring the safe and stable operation of the power system and enhancing the automatic dispatch level and the maintenance level of power system.

Key words: high-voltage switch, video surveillance device, high-speed camera, smart power grid