Status and application foreground of ultraviolet technology on fault detection of power devices

The safety of power grid depends on the reliable running of power devices and transmission circuits. At present, the detection methods of electric device faults are often taken by infrared imaging system, ultrasonic imagining system, etc. However, these techniques have some inherited shortcomings. Thus it needs a more effective detection technology for the safety running of power system. As a new detection technology, UV has its special advantages and wide developing space. This paper states the UV mechanism, advantages, forms and diagnosing methods, which also lists its application examples in China and abroad. And it sums up the annual proceedings of transmission specialty council of CSEE on UV Detection Discussion in the year 2007. Finally, it points out some shortcomings of UV technology and forecasts its developing trend.