高电压技术2011，Vol.37Issue(6)：1349-1354,6.
电缆本体空间电荷电声脉冲法测量装置的研制
Development of Cable Space Charge Measurement Device Using Pulsed Electro-acoustic Method
摘要
Abstract
A well-known fact of the existence and accumulation of space charge within the insulating material poses great threat to the conductance characteristics,aging and breakdown of the polymer power cables,so it is important to research the accumulation and distribution of the space charge.Consequently,we described the basic principle of pulsed electro-acoustic（PEA） method,and manufactured a new device that could be used for cable sample PEA space charge measurement and make it possible to use the flat shape electrode,by which we could apply the PEA method to any size of cables.The system was used to test a new domestic 10 kV XLPE cable and a 10 kV XLPE cable which had been run over 20 years.It is found that,in the case of the same test conditions,the space charge accumulation in the cable which was operated for many years is significantly more than the new one.关键词
电声脉冲（PEA）法/空间电荷/平板型电极/聚合物电缆/杂散电容/数据处理Key words
pulsed electro-acoustic（PEA） method/space charge/flat shape electrode/polymer power cables/stray capacitance/data processing分类
信息技术与安全科学引用本文复制引用
王伟,高超飞,孙辉,李上国..电缆本体空间电荷电声脉冲法测量装置的研制[J].高电压技术,2011,37(6):1349-1354,6.基金项目
国家重点基础研究发展计划（973计划） （）
