绝缘纸板老化对局部放电脉冲参数的影响(英文)

被引：4

作者：

李军浩 ^{[1
]}

王颂 ^{[2
]}

靳巍 ^{[3
]}

李彦明 ^{[1
]}

机构：

[1] Department of High Voltage,School of Electrical Engineering,Xi'an Jiaotong University

[2] Guangzhou Bureau,EHV Power Transmission Company,China South Grid

[3] Zhengzhou Power Company

来源：

高电压技术 | 2011年 / 37卷 / 11期

关键词：

partial discharge; pulse; aging; wavelet; oil/paper; transformer;

D O I：

10.13336/j.1003-6520.hve.2011.11.022

中图分类号：

TM41 [电力变压器]; TM855 [绝缘的试验与检查];

学科分类号：

080801 ; 080803 ;

摘要：

<正>Combination of pressboard and mineral oil continues to be the choice of materials used as the insulation dielectric media in large transformers.The purpose of the reported study is to investigate the influence of pressboard aging on PD(partial discharge) pulse parameters.Ultra wide band(UWB) time-resolved PD pulse measurements were carried out on gas void inside pressboard.The rise rime,full time and width time of PD pulse in different aging degree pressboard are obtained.The result is helpful to better understanding the influence of the aging of pressboard on PD measurement and insulation diagnostics in power transformers.

引用

页码：2758 / 2762

页数：5