Surface Flashover Characteristics in Vacuum of ZnO Varistor+Al2O3 Ceramic+ZnO Varistor Insulators

摘要：

In this paper, ZnO Varistor+Al2O3 Ceramic+ZnO Varistor Insulators were made, in which the conductivity and permittivity of ZnO Varistors were controlled by changing its voltage gradient. Then the influences of conductivity and permittivity of ZnO Varistors on the DC and pulsed surface flashover voltage in vacuum were experimentally investigated. The experimental results indicated that the DC and pulsed surface flashover voltage of the three-layer insulators will be increased obviously while the conductivity and permittivity of ZnO Varistors have been controlled within a certain range.

关键词： surface flashover in vacuum triple junction electric field distribution ZnO Varistors

作者: Shengtao LI Tuo ZHANG Jian SUN Yunxia ZHANG Fengyan NI Weiwei LI

作者单位: State Key Laboratory of Electrical Insulation and Power Equipment Xian Jiaotong University, Xian, 710049, China

会议类型: 国际会议

会议名称: 第九届电介质材料性能与应用国际会议(The 9th International Conference on Properties and Applications of Dielectric Materials)

会议地点: 哈尔滨

会议语种:英文

页码: 808-811

在线出版日期: 2009-07-19（万方平台首次上网日期，不代表论文的发表时间）