[1]程海兴,王洪新.交流悬式复合绝缘子内部缺陷对电场的影响[J].电瓷避雷器,2019,(06):230-236.[doi:10.16188/j.isa.1003-8337.2019.06.037]
 CHENG Haixing,WANG Hongxin.Effect of the Internal Insulation Defects of AC Suspended Composite Insulator on Electric Field[J].,2019,(06):230-236.[doi:10.16188/j.isa.1003-8337.2019.06.037]
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交流悬式复合绝缘子内部缺陷对电场的影响()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年06期
页码:
230-236
栏目:
绝缘子
出版日期:
2019-12-10

文章信息/Info

Title:
Effect of the Internal Insulation Defects of AC Suspended Composite Insulator on Electric Field
作者:
程海兴 王洪新
(武汉大学电气工程学院, 武汉 430072)
Author(s):
CHENG Haixing WANG Hongxin
(School of Electrical Engineering, Wuhan University, Wuhan 430072, China)
关键词:
复合绝缘子 内部缺陷 导电通道 电场法
Keywords:
composite insulator internal defects conductive channel electric field method
DOI:
10.16188/j.isa.1003-8337.2019.06.037
摘要:
利用有限元分析软件Ansoft Maxwell,采用复介电常数法,对220 kV复合绝缘子芯棒出现导电通道缺陷后的绝缘子沿串轴向电场进行了仿真分析,并进行了试验验证,结果表明:当导电通道缺陷与高压端相连时,电场检测法可以检测出导电通道的长度; 对于悬浮导电通道缺陷,电场测量法只能判断缺陷的存在,不能确定缺陷的长度,电场畸变量曲线能更直观地反映出缺陷的存在; 导电通道电导率小于10 S/m时,很难通过电场法检测到缺陷的存在。
Abstract:
Using finite element analysis software Ansoft Maxwell, complex dielectric constant method was adopted to simulate and analyze the axial electric field of the insulator after 220 kV composite insulator mandrels appeared conductive channel defects. And verified by experiments, it is concluded that: when the channel defect is connected with the high voltage terminal, the electric field detection method can detect the length of the conductive channel; for the suspension conductive channel defect, the electric field measurement method can only determine the existence of a defect, and cannot determine the length of the defect. The electric field distortion curve can be more intuitively reflected. The presence of defects; when the conductive channel conductivity is less than 10 S/m, it is difficult to detect the presence of defects by the electric field method.

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备注/Memo

备注/Memo:
收稿日期:2018-04-20 作者简介:程海兴(1992—),男,硕士,主要从事带电作业新技术研发、高压设备电气检测等工作。
更新日期/Last Update: 2019-12-10