| Statistical characteristics analysis of partial discharge in high voltage cable joint |
| |
| 作者姓名： | TANG Ju ZHU Li ming GONG Ning tao ZHANG Xiao xing and WEI Gang |
| |
| 作者单位： | State Key Laboratory of Power Transmission Facilities & System Security and New Technology， Chongqing University，Chongqing 400030,P.R. China;State Key Laboratory of Power Transmission Facilities & System Security and New Technology， Chongqing University，Chongqing 400030,P.R. China;State Key Laboratory of Power Transmission Facilities & System Security and New Technology， Chongqing University，Chongqing 400030,P.R. China;State Key Laboratory of Power Transmission Facilities & System Security and New Technology， Chongqing University，Chongqing 400030,P.R. China;State Key Laboratory of Power Transmission Facilities & System Security and New Technology， Chongqing University，Chongqing 400030,P.R. China |
| |
| 摘 要： | Four typical physical models for the internal insulation defects of 110kV cable joint are designed, while the test platform for Partial Discharges (PD) research on cable joint is constructed. A large number of PD data under different models are obtained by inner broadband ring sensor. The statistical analysis on the PD pattern indicates that there are significant differences between four PD forms on the statistical characteristics such as the phase distribution, skewness, kurtosis and degree of asymmetry, which can be used as effective features to reflect different characteristics of PD. Surface discharge and conductive particles may cause more serious damage to the insulation performance of cable joint, so high precaution should be paid on site operation.
|
| 关 键 词： | cable joint partial discharge phase analysis statistical characteristics |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
| 点击此处可从《保鲜与加工》下载免费的PDF全文 |
|
