电测与仪表2017，Vol.54Issue(1)：71-76,6.
35kV电缆终端常温下两种刀痕的局部放电特性
The partial discharge characteristics for two cutting defects for 35kV cable terminations under normal temperature
高元生 1赵庆杰 2杨利彬 1陈强 1吴科 2周凯2
作者信息
- 1. 国网达州供电公司,四川达州635000
- 2. 四川大学电气信息学院,成都610065
- 折叠
摘要
Abstract
In order to investigate the partial discharge ( PD) phenomenon of the cable termination and the characteris-tics under different kinds of main insulation cutting defects , the actual working conditions of cable terminal will be simulated through the platform of XLPE cable accessories , furthermore, the experimental data would be acquired by u-sing HFCT ( high frequency current transformer ) .The characteristics of two cutting defects covering PRPD ( Phase Resolved Partial Discharge ) , waveform of single pulse discharge , the figure of discharge capacity , the electric field simulation and T-F characteristic are compared under normal temperature 20 ℃.The experimental results show that the characteristics of PD were significant difference of the two kinds of different cutting defects under the normal tem -perature, the time of the single waveform for ring-cutting defect is longer than slitting-cutting, and higher on discharge capacity , the amplitude and the phase distribution of PD , there are some significant differences of T-F between them . It will provide the theory basis from the difference , which are very important to discover the defects of cable terminal early and ensure its stable operation , and has practical application value .关键词
局部放电/电缆终端/幅值相位分布/时频特性Key words
partial discharge/cable termination/PRPD/time-frequency characteristic分类
信息技术与安全科学引用本文复制引用
高元生,赵庆杰,杨利彬,陈强,吴科,周凯..35kV电缆终端常温下两种刀痕的局部放电特性[J].电测与仪表,2017,54(1):71-76,6.
