伞盘及绝缘长度对220kV复合绝缘子场强的影响  

Effects of Umbrella and Insulation Length on Electric Field Intensity Distribution of Compound Insulator

作　　者：卫李静[1] 

机构地区：[1]国网电力科学研究院,湖北武汉430074

出　　处：《水电能源科学》2011年第7期160-162,共3页Water Resources and Power

摘　　要：为分析伞盘及绝缘长度对220 kV复合绝缘子电场强度分布的影响,采用有限元法计算了220 kV复合绝缘子在不同绝缘长度、不同伞盘距离和有无伞盘时沿面电场强度分布情况。结果表明,复合绝缘子长度小幅增加对电场强度分布有所改善,伞盘对电场强度分布影响不大,选用加长型绝缘子和改变伞盘结构对复合绝缘子电场强度分布影响不明显。In order to analyze the influence of umbrella and insulation, finite element method is applied to calculate the electric field intensity distribution of 220 kV compound insulator under the different umbrella distances and insulation length and with or without umbrella. The result shows that the increase of insulation length with small scale will improve electric field intensity distribution of 220 kV compound insulator while the umbrella has little effect; it has no effect on the electric field intensity distribution for increasing the insulation length and improving the umbrella structure.

关 键 词：伞盘 绝缘长度 复合绝缘子 电场强度分布 ANSYS 均压环 

分 类 号：TM216[一般工业技术—材料科学与工程]