高电压技术2011，Vol.37Issue(3)：555-561,7.
ZnO压敏电阻残压比的影响因素分析
Influence Factors of Residual Voltage Ratio of ZnO Variostor
摘要
Abstract
As core elements of the arresters, ZnO varistors have been widely used for surge protection in power sys tems. The residual voltage ratio is a key parameter of ZnO varistors and arresters, which determines the protective levels and insulation requirements of power systems. Consequently, the basic influence factors of the residual volt age ratio were analyzed, and the detailed relationships between the microstructure parameters and the residual volt age ratio were simulated based on the Voronoi network and actual grain boundary models. The parameters, such as grain size, donor density, and interface state density, mainly affected the residual voltage ratio in the reference volt age zone, while the grain resistivity directly changes the residual voltage zone. Based on the simulation results, an experiment design of ZnO varistors with low residual voltage ratio was proposed.关键词
ZnO压敏电阻/避雷器/残压比/维诺网格/晶界模型/数值仿真Key words
ZnO varistor/ arrester/ residual voltage ratio/ Voronoi network/ grain boundary model/ simulation分类
信息技术与安全科学引用本文复制引用
胡军,龙望成,何金良,刘俊..ZnO压敏电阻残压比的影响因素分析[J].高电压技术,2011,37(3):555-561,7.基金项目
国家自然科学基金(50737001). （50737001）
