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Portable ultrasonic detectors are useful for detection of electrical discharge phenomena like as partial discharge, corona, arching and tracking occurring in an electric system. But the general potable ultrasonic detectors have drawbacks that the results are under the influence subjective reaction of users and it is difficult to determine the type of problem by listening to sound properties and estimate results. So a new analysis method distinguishing ultrasonic characteristics is required. This paper presented ultrasonic wave analysis program to visualize ultrasonic sound of corona, arching and tracking measured by ultrasonic detector. While depending on sound properties alone can be subjective, by incorporating analytical method using the developed program, users are able to increase the accuracy of their ultrasonic diagnosis results. Key Words : Ultrasonic, Corona, Arching, Tracking, Program *  : (kescoin@naver.com) 09 08 11  09 09 22  09 10 14

Development of Ultrasonic Wave Analysis Program for Effective Use of Ultrasonic Detector