Effect of Space Charge on the Propagation Path of Air Gap Discharge

作     者：郝丽霞 王伟 詹花茂 韩筱慧 邓丽红 

作者机构：Beijing Area Major Laboratory of High Voltage and EMCState Key Laboratory of' Alternate Electrical Power System with Renewable Energy SourcesNorth China Electric Power University 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2011年第13卷第6期

页      面：714-718页

核心收录：

学科分类：0808[工学-电气工程] 080803[工学-高电压与绝缘技术] 08[工学] 

基　　金：State Grid Corporation of China 

主　　题：curvature discharge propagation path high speed cameras space charge 

摘      要：The existence of space charge may be addressed as one of the reasons that could cause shielding failure of transmission lines. In order to study the effect of space charge on discharge propagation path, a new experimental system, including mainly DC high voltage generator, impulse voltage generator as well as rod-plane electrode, has been established. The space charge was generated around the rod by means of pre-applying DC high voltage, and the air gap dis- charge experiments were conducted with and without pre-applying DC high voltage, respectively. Meanwhile, high speed cameras worked simultaneously from the front and lateral side to record the discharge propagation path so as to obtain the curvature. After statistical analysis, it is shown that the curvature increases in the middle and lower portions of the propagation path when the effect of space charge is taken into account.