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Energies 2016, 9(1), 53; doi:10.3390/en9010053

Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques

1
College of Engineering and Technology, Southwest University, Beibei, Chongqing 400715, China
2
School of Electronics and Computer Science, University of Southampton, Highfield Campus, Southampton SO17 1BJ, UK
3
State Grid Chongqing Electric Power Corperation Chongqing Electric Power Research Institute, Chongqing 401123, China
*
Author to whom correspondence should be addressed.
Academic Editor: Issouf Fofana
Received: 19 November 2015 / Revised: 22 December 2015 / Accepted: 12 January 2016 / Published: 18 January 2016
(This article belongs to the Special Issue Power Transformer Diagnostics, Monitoring and Design Features)

Abstract

This paper focuses on the space charge behavior in oil-paper insulation systems used in power transformers. It begins with the importance of understanding the space charge behavior in oil-paper insulation systems, followed by the introduction of the pulsed electrostatic technique (PEA). After that, the research progress on the space charge behavior of oil-paper insulation during the recent twenty years is critically reviewed. Some important aspects such as the environmental conditions and the acoustic wave recovery need to be addressed to acquire more accurate space charge measurement results. Some breakthroughs on the space charge behavior of oil-paper insulation materials by the research team at the University of Southampton are presented. Finally, future work on space charge measurement of oil-paper insulation materials is proposed. View Full-Text
Keywords: space charge; insulation oil; insulation paper; pulsed electroacoustic technique (PEA); temperature; moisture content; simulation space charge; insulation oil; insulation paper; pulsed electroacoustic technique (PEA); temperature; moisture content; simulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Tang, C.; Huang, B.; Hao, M.; Xu, Z.; Hao, J.; Chen, G. Progress of Space Charge Research on Oil-Paper Insulation Using Pulsed Electroacoustic Techniques. Energies 2016, 9, 53.

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