摘要
本文对聚乙烯中水树枝在直流电压下的 U- R特性和在工频电压下 U- tanδ特性进行了实验研究。研究发现 ,含水树枝试样不仅具有非线性的绝缘电阻特性和介质损耗因数值随测试电压变化的特性 。
By experimental research on a water treed plane LDPE sample,it is found that there is a quite difference on insulation resistance and dielectric loss under different test voltages.The result has presented a non linear property,in which the insulation resistance is of the most significant non linearity at different DC voltages.The further analysis concludes that the non linear characteristics are mainly attributed to the change of the conductivity of the water tree at different test voltages.
出处
《绝缘材料》
CAS
北大核心
2001年第5期32-34,共3页
Insulating Materials
基金
西安交通大学在职博士基金资助项目
关键词
聚乙烯
水树枝
非线性特性
绝缘材料
Water tree
Polyether
Non linear response
Insulation resistance
Dielectric loss
