Abstract Testing the characteristics of partial discharge of electrical equipment is a good method for the prevention of electrical equipment malfunction, this paper proposes the use of UltraTEV Plus partial discharge detector for on-line partial discharge detection of electrical equipment, it is not only able to measure internal partial discharge activity on the outer surface of the electrical equipment, without opening the enclosure of the electrical equipment, but also can do partial discharge ultrasonic testing of electrical equipment long-distance, such as overhead line, transformer and so on, without contact directly.
2013, Vol. 14 
