Simulation of PD Pulse Propagation in MV XLPE Cable

被引:0
|
作者
Liu, Hong-Jing [1 ]
Ren, Zhi-Gang [1 ]
Zhou, Feng [1 ]
Wu, Lin-Lin [1 ]
Huang, Shan [1 ]
Gao, Xu-Ze [2 ]
机构
[1] Beijing Elect Power Co, Res Inst, Beijing 100075, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Elect Insulat Power Equipment, Xian, Shaanxi, Peoples R China
关键词
XLPE cable; PD pulse; high frequency attenuation;
D O I
10.1145/3148453.3306288
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Partial discharge is a useful diagnostic method for a wide range of power apparatus. In the case of XLPE cable, partial discharge can detect various insulation defects, for example workmanship-induced defects, as well as cavities and electrical trees in the dielectric. When a PD pulse propagates trough a cable, caused by the attenuation, the waveform of PD pulse is changed. For a PD measurement, it is critical to know what happens when a PD pulse propagates through a cable, therefore this paper give a direction that the shape and the amplitude of PD pulse changes during its propagation, in particular high frequency content of a PD pulse is attenuated relatively fast, and compared with the cable without joint, when PD pulse propagates through a joint, the amplitude will decay very seriously.
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页数:4
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