基于OWTS检测系统110kV电缆线路震荡波局放检测技术研究  

Research on Partial Discharge Detecting Technology of Osicillating Wave Based on 110kV Cable Lines of OWTS Test System

作　　者：余生 王俊 张亚波 曹睿 邓长灏 余卓洋 YU Sheng;WANG Jun;ZHANG Ya-bo;CAO Rui;DENG Chang-hao;YU Zhuo-yang(Shaoguan Power Supply Bureau,Guangdong Grid Co.Ltd.,Shaoguan 512000,China;Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]广东电网有限责任公司韶关供电局,广东韶关512000 [2]中国民航大学,天津300300

出　　处：《电气开关》2023年第6期49-53,共5页Electric Switchgear

摘　　要：本文提出了一种新型的振荡波测试系统(OWTS),用于检测110kV电缆线路震荡波的局部放电。在所提出的系统中,基于传统的OWTS,在电路拓扑中添加了一个补偿电容器。充电电容器由高压直流电源充电至所需电压。在充电过程之后,测试电缆样品由电容器充电。谐振电路由充电电容器、测试电缆和谐振电抗器组成,以产生无振荡衰减电压。采用这种新方法,不会向电缆绝缘层注入空间电荷。利用Multisim软件计算了充电电容对充电效率的影响。测试结果表明了新的OWTS方法的可行性。The paper proposes a new type of oscillating wave test system,which uses for detecting the partial dis⁃charge of the oscillating wave of 110kV cable lines.In the proposed system,based on traditional OWTS,add a com⁃pensation condenser from high voltage DC source is charged to required voltage.After charging,The tesed cable sample is charged by the condenser.The resonant circuit consists of the charging condenser,testing cable and teso⁃nance reactor so as to produce dead⁃beat evanescent voltage.Adopt this new method not to pour space charge into cable insulating layer.Use Multisim software to calculate the influence of the charging condenser on charging effi⁃ciency.The test result shows feasibility of the new OWTS method.

关 键 词：OWTS检测系统 110KV电缆 震荡波 局部放电 

分 类 号：TM71[电气工程—电力系统及自动化]