| 基于振荡波测试系统的10kV XLPE电缆终端半导电层缺陷检测效果分析 |
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| 引用本文： | 刘刚,阮班义.基于振荡波测试系统的10kV XLPE电缆终端半导电层缺陷检测效果分析[J].华东电力,2011(8). |
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| 作者姓名： | 刘刚 阮班义 |
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| 作者单位： | 华南理工大学电力学院; |
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| 基金项目： | 国家重点基础研究发展计划项目(2009CB724507); 广东电网公司科技进步项目(DK0010GZ0006)~~ |
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| 摘 要： | 在10 kV XLPE电缆终端及接头安装过程中半导电层的制作不当会导致局部电场的畸变,引起局部放电,最后导致终端及接头的击穿故障。制作了电缆终端半导电层过长10 mm、无倒角、倒角不齐等3类缺陷,利用振荡波测试系统分别进行了检测。检测结果证明了该系统能够检测出该3类缺陷,但对不同缺陷的灵敏度不同。使用有限元仿真软件对相应的半导电层缺陷进行了电场仿真计算。仿真结果表明半导电层制作不当时局部最大场强是正常情况的4倍以上,证明了振荡波测试系统检测结果的正确性。
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| 关 键 词： | 振荡波测试系统 半导电层 缺陷 局部放电 有限元 |
Analysis of Detected Effect on Semi-conductive Layer with Defects of 10kV XLPE Cable Terminals Based on Oscillating Wave Test System |
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| LIU Gang,RUAN Ban-yi.Analysis of Detected Effect on Semi-conductive Layer with Defects of 10kV XLPE Cable Terminals Based on Oscillating Wave Test System[J].East China Electric Power,2011(8). |
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| Authors: | LIU Gang RUAN Ban-yi |
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| Affiliation: | LIU Gang,RUAN Ban-yi(School of Electric Power,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | The electric field is very easily caused local distorted if the 10 kV XLPE cable terminals and connector are wrong in the process of design and installation,it appears Partial Discharge and may lead to breakdown.In this paper,the semi-conductive layer is 10 mm longer than nomeal,no charmfer or irregular are detcted by OWTS.The results show that OWTS can detect the three types of defects,but sensitivity is defferent.Then the electric field of corresponding defects is calculated by finite element.Its results ... |
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| Keywords: | OWTS Semi-conductive Layer Defects Partial Discharge Finite Element |
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