Studies on Electric Field Distribution and Partial Discharges of XLPE Cable at DC Voltage

被引：0

作者：

Zhu, Yufeng ^{[1
]}

Yang, Fengyuan ^{[1
]}

Xie, Xiaolei ^{[2
]}

Cao, Weikang ^{[2
]}

Sheng, Gehao ^{[1
]}

Jiang, Xiuchen ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China

[2] State Grid Jiangsu Elect Power CO LTD, Suzhou Power Supply Co, Suzhou 215004, Jiangsu, Peoples R China

来源：

2018 12TH INTERNATIONAL CONFERENCE ON THE PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS (ICPADM 2018) | 2018年

关键词：

XLPE cable; DC voltage; electric field distribution; partial discharge;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Partial discharge (PD) detection is considered as a reliable method to analyze the operating status of the electrical equipment. But there are only a few literatures about PDs of cross-linked polyethylene (XLPE) cable at DC voltage. So this paper mainly concentrates on electric field distribution and PD phenomena of DC XLPE cable. Numerical simulation method is applied to analyze electric field distribution in normal and four typical insulation defect (corona defect, cavity defect, scratch defect and creepage defect) models. Electro-thermal coupling model is established to solve this problem. The simulation result shows that four defects can cause different electric field distortion. Among them, corona defect has the most serious distortion and creepage defect has the most slightly distortion. The high voltage test is applied to verify the simulation result. The H(q, Delta t) spectrums of PD signals confirm that serious electric field distortion can cause severe PD phenomena.

引用

页码：562 / 565

页数：4

共 11 条

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