<abstract xmlns="http://www.w3.org/1999/xhtml"><p>With the formation of China’s large power grid, the security of the network is particularly important. The contaminant flashover of insulators has a serious impact on the operation safety of a high voltage power network. In this paper, the acoustic signals’ characteristics of the contaminant insulators flashover are analyzed, and, as a result, the correlation between the acoustic signal and the contaminant insulator flashover is established. To experiment with contaminant insulator for three different Equivalent Salt Deposit Densities (ESDD), acoustic signals were collected separately. Then, the contaminant insulators’ acoustic signals of flashover were analyzed by wavelet packet. The characteristics of the signals were obtained, and they can be judged for contaminant flashover warning.</p></abstract>

With the formation of China’s large power grid, the security of the network is particularly important. The contaminant flashover of insulators has a serious impact on the operation safety of a high voltage power network. In this paper, the acoustic signals’ characteristics of the contaminant insulators flashover are analyzed, and, as a result, the correlation between the acoustic signal and the contaminant insulator flashover is established. To experiment with contaminant insulator for three different Equivalent Salt Deposit Densities (ESDD), acoustic signals were collected separately. Then, the contaminant insulators’ acoustic signals of flashover were analyzed by wavelet packet. The characteristics of the signals were obtained, and they can be judged for contaminant flashover warning.

Analysis of Various ESDD of Contaminant Insulator Flashover Acoustic Signal by Wavelet Packet

School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072,

The Mechanical and Electrical Institute, Shihezi University, Shihezi 832003,

Cybernetics and Information Technologies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

With the formation of China’s large power grid, the security of the network is particularly important. The contaminant flashover of insulators has a serious...

Analysis of Various ESDD of Contaminant Insulator Flashover Acoustic Signal by Wavelet Packet

Published Online: Jan 25, 2017

Page range: 220 - 231

DOI: https://doi.org/10.1515/cait-2016-0090

Keywords
Contaminant insulator flashover, acoustic signal, Equivalent Salt Deposit Density (ESDD), wavelet packet

© 2016 Hong Kun Wang et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Analysis of Various ESDD of Contaminant Insulator Flashover Acoustic Signal by Wavelet Packet

Published Online: Jan 25, 2017

Page range: 220 - 231

DOI: https://doi.org/10.1515/cait-2016-0090

KeywordsContaminant insulator flashover, acoustic signal, Equivalent Salt Deposit Density (ESDD), wavelet packet

© 2016 Hong Kun Wang et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Contaminant insulator flashover, acoustic signal, Equivalent Salt Deposit Density (ESDD), wavelet packet