高电压技术2013，Vol.39Issue(6)：1476-1480,5.DOI:10.3969/j.issn.1003-6520.2013.06.027
表面污秽对交流导线电晕损失特性的影响规律
Influence Rule of Surface Contamination to Corona Loss Characteristics of AC Transmission Lines
摘要
Abstract
We studied the influence of adhered contamination on the corona discharge characteristics of long-term operation conductors.Using a corona cage of 1.8 m× 1.8 m × 4 m,we measured the corona loss of simulation conductors,which had surfaces brushed with kaolin soil,carbon particles,sand particles and their mixtures of different qualities.The test results show that the relative dielectric constant,particle size,and adhesion amount are the three main factors that influence the corona loss characteristics of AC transmission lines; the corona loss value increases with the relative dielectric constant of the contamination; the corona loss increases with the granularity of the same contamination,but this tendency is not apparent; the corona loss of contaminated conductor increases with the contamination adhesion amount.Furthermore,we also simulated the surface electric field by using the software Ansys,showing that the maximum electric field strength on the top of contamination particle increases with the relative dielectric constant as well as the particle size of the cone particle,but decreases with the increasing particle size.关键词
污秽颗粒/相对介电常数/颗粒度/沉积量/电晕损失/表面电场强度/交流输电线路Key words
contamination particle/ relative dielectric constant/ particle size/ adhesion amount/ corona loss/ surface electric field strength/ AC transmission lines引用本文复制引用
律方成,朱雷,刘云鹏,周国杨,李玥翰..表面污秽对交流导线电晕损失特性的影响规律[J].高电压技术,2013,39(6):1476-1480,5.基金项目
国家重点基础研究发展计划(973计划)(2011CB209401) （973计划）
国家自然科学基金(51277073) （51277073）
Project supported by National Basic Research Program of China(973 Program)(2011CB209401),National Natural Science Foundation of China(51277073). （973 Program）
