用Mason计算针板电极场强大小的适用性分析  

Suitability Analysis on Needle Plate Electrode Field Strength Based on Mason Calculation

作　　者：张凯[1] 孙红梅[2] 

机构地区：[1]国网辽宁省电力有限公司,辽宁沈阳110006 [2]国网辽宁省电力有限公司检修公司,辽宁沈阳110006

出　　处：《东北电力技术》2016年第6期27-30,34,共5页Northeast Electric Power Technology

摘　　要：在进行XLPE电缆绝缘材料电树枝化试验时,广泛采用针板电极系统,研究了针电极的针尖形状及尖端曲率大小是否满足要求,并采用Mason公式计算针板电极系统最大场强是否适用、是否能正确反映针尖场强实际大小,结果证明试验用针电极尖端形态和尺寸均满足试验设计要求及Mason公式的适用条件,利用Mason计算试验用针板电极最大场强是可行的。Learners commonly use the needle plate electrode system when studying the properties of the electrical tree in XLPE cable insulation. This paper studies that whether the profile of the needle electrode tip meets the hyperbolic shape or the curvature of needle electrode tip meets the requirements. This paper also studies that whether the theoretical analysis of the field strength in the needle plate electrode system with Mason formula can correctly describe the field strength at needle electrode tip in the experiment. The results show that the shape and size of the needle electrode tip can meet the requirements of design of experiment. The Mason formula can be used to calculate maximum field strength of the needle plate electrode system in the experiment.

关 键 词：MASON ANSYS 针板电极 电树枝化 

分 类 号：TM74[电气工程—电力系统及自动化]