110 kV XLPE电缆内置式局部放电检测装置研究

doi:10.3969/j.issn.1008-0198.2025.03.012

湖南电力 ›› 2025, Vol. 45 ›› Issue (3): 84-88.doi: 10.3969/j.issn.1008-0198.2025.03.012

110 kV XLPE电缆内置式局部放电检测装置研究

喻婷¹, 段肖力¹, 刘三伟¹, 钟理鹏², 李绍斌³, 王峰⁴

1.国网湖南省电力有限公司电力科学研究院,湖南长沙 410208;
2.湖南大学电气与信息工程学院,湖南长沙 410082;
3.长缆科技集团股份有限公司,湖南长沙 410012;
4.国网湖南省电力有限公司,湖南长沙 410004

收稿日期:2025-03-17 修回日期:2025-03-26 发布日期:2025-07-02
通信作者: 喻婷(1996),女,硕士,工程师,主要从事高压电缆智能感知终端性能检测、电缆运行技术管理工作。
作者简介:段肖力(1973),男,高级工程师,主要从事输变电运维研究工作。刘三伟(1990),男,高级工程师,主要从事充气复合高压电缆系统研究工作。钟理鹏(1990),男,副教授,主要从事电气与信息工程研究工作。李绍斌(1982),男,高级工程师,主要从事电缆附件研究工作。王峰(1982),男,高级工程师,主要从事高压电缆输电运维管理工作。
基金资助:
国网湖南省电力有限公司科技项目（5216A524000W）

Research on Detection Method of Detection Sensors for 110 kV XLPE Cables

YU Ting¹, DUAN Xiaoli¹, LiU Sanwei¹, ZHONG Lipeng², Li Shaobin³, WANG Feng⁴

1. State Grid Hunan Electric Power Company Limited Research institute, Changsha 410208, China;
2. College of Electrical and information Engineering, Hunan University, Changsha 410082, China;
3. Chang Lan Technology Group Co., Ltd., Changsha 410012, China;
4. State Grid Hunan Electric Power Company Limited, Changsha 410004, China

Received:2025-03-17 Revised:2025-03-26 Published:2025-07-02

摘要/Abstract

摘要： 针对高压XLPE（交联聚乙烯）电缆传统局部放电检测效果不佳的问题,提出一种高压电缆内置式局部放电检测装置。通过改进电缆终端及中间接头结构,在电缆终端及中间接头尾管区域预留法兰接口以内置局部放电检测天线,实现局部放电信号的精准有效检测,避免对电缆本体造成伤害;检测天线采用双螺旋结构,实现局部放电信号精准采集、传输、分析及处理;通过仿真及测试,确定长度50~500 m的110 kV XLPE高压电缆内置式局部放电检测天线的中心频率为20 MHz。局部放电信号检测试验结果表明,电缆内置式局部放电检测装置能有效检测到局部放电信号。

关键词: XLPE电缆, 局放检测, 天线, 频率

Abstract: Aiming at the poor detection effect of traditional partial discharge (hereinafter referred to as PD) of high-voltage XLPE (cross-linked polyethylene) cables, an innovative built-in partial discharge(PD） signal detection device for high-voltage cables is proposed. By improving the structure of cable terminals and intermediate joints, a flange interface is reserved into the tailpipe area of these components for embedding a PD detection antenna, enabling accurate and effective detection of PD signals while avoiding damage to the cable body. With the detection antenna adopting a double-helix structure, precise collection, transmission, analysis, and processing of PD signals ar achieved. Through simulation and testing, the central frequency of the built-in PD detection antenna for 110 kV XLPE high-voltage cables with lengths ranging from 50 to 500 meters is determined to be 20 MHz. Test results demonstrate that the built-in PD detection sensor can effectively detect PD signals.

Key words: XLPE cable, partial discharge detection, antenna, frequency

中图分类号:

TM854

喻婷, 段肖力, 刘三伟, 钟理鹏, 李绍斌, 王峰. 110 kV XLPE电缆内置式局部放电检测装置研究[J]. 湖南电力, 2025, 45(3): 84-88.

YU Ting, DUAN Xiaoli, LiU Sanwei, ZHONG Lipeng, Li Shaobin, WANG Feng. Research on Detection Method of Detection Sensors for 110 kV XLPE Cables[J]. Hunan Electric Power, 2025, 45(3): 84-88.

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110 kV XLPE电缆内置式局部放电检测装置研究

Research on Detection Method of Detection Sensors for 110 kV XLPE Cables

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