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http://dx.doi.org/10.17661/jkiiect.2019.12.1.78

Frequency Spectrum Analysis of Corona Discharge Source Measured by Ultrasound Detector  

Cho, Hyun-Seob (Department of Electronic Engineering, ChungWoon University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.12, no.1, 2019 , pp. 78-82 More about this Journal
Abstract
This paper addressed the spectrum of ultrasonic waves produced by arc and/or coronal discharge inside the switchboard. Portable ultrasound sensors are useful for detecting discharge phenomena, such as coronal means in electrical systems. However, a typical handheld ultrasound detector has a disadvantage of determining the type of problem by listening to the sound characteristics and predicting the results, as a result of the determination of whether a discharge is present. Therefore, a new method of analysis is required to distinguish ultrasonic characteristics. In this paper, we published an ultrasound analysis case study to visualize the sound of ultrasonic waves measured with ultrasonic sensors. From the results of the experiment, it was possible to detect coronal discharge and serial arc discharge without interference by the ultrasonic detection system.
Keywords
Ultrasound; Interference; Electric Power; Series-arc; Frequency spectrum;
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