@article{oai:miyazaki-u.repo.nii.ac.jp:00002449,
 author = {松本, 慎吾 and Matsumoto, Shingo and 中山, 新吾 and Nakayama, Shingo and 児玉, 祐一 and 辻, 利則 and 大坪, 昌久 and Otsubo, Masahisa and 本田, 親久 and Honda, Chikahisa and 刀祢, 浩一 and 野口, 博志 and Noguchi, Hiroshi and 松本, 慎吾 and Matsumoto, Shingo and 中山, 新吾 and Nakayama, Shingo and Kodama, Yuichi and Tsuji, Toshinori and Tone, Kouichi and 野口, 博志 and Noguchi, Hiroshi},
 journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki},
 month = {Aug},
 note = {Abstract 
A partial discharge appears when the surface of a transmission line insulator is polluted by 
adhesion of sea salt. A corona noise is made due to the occurrence of the partial discharge on 
the insulator. The purpose of this research is to develop a monitoring system of the corona noise. 
To develop the monitoring system, it is necessary to investigate the relationship between the 
corona noise level and the polluted condition of the insulator and establish the measurement 
technique of the corona noise. But, it is difficult to extract only corona noise with outdoor 
observation because there are noises such as rain sound, wind noise and the voice of the insect. 
The noise measurement experiment was done in the transmission tower, and the shape of 
waves was analyzed. The corona noise could be extracted in the band of 1kHZ - 3 kHZ from the 
analysis using FFT and wavelet transfer. It has been understood that the number of electrical 
discharge counts increases in the place where the partial discharge sound has generated. 
However, the number of counts increased when the partial discharge sound had not generated 
with same external noises. It can be distinguished whether it is the partial discharge by 
examining the interval of 120Hz in number of partial discharges. It is understood to be able to 
detect the partial discharge sound by using the method.},
 pages = {77--82},
 title = {碍子汚損に伴う放電音の計測と絶縁診断システムの開発},
 volume = {35},
 year = {2006},
 yomi = {マツモト, シンゴ and ナカヤマ, シンゴ and コダマ, ユウイチ and ツジ, トシノリ and オオツボ, マサヒサ and ホンダ, チカヒサ and トネ, コウイチ and ノグチ, ヒロシ and マツモト, シンゴ and ナカヤマ, シンゴ and ノグチ, ヒロシ}
}