基于等效电路的高压直流断路器均压电极设计  

Design of Equalizing Electrode for High Voltage DC Circuit Breaker Based on Equivalent Circuit

作　　者：高志婷 杜道忠 王智勇 陈新 杨兵[2] 王文杰 吕玮[2] GAO Zhiting;DU Daozhong;WANG Zhiyong;CHEN Xin;YANG Bing;WANG Wenjie;LV Wei(NR Electric Power Electronics Co.,Ltd.,Changzhou 213025,China;NR Electric Co.,Ltd.,Nanjing 211102,China)

机构地区：[1]常州博瑞电力自动化设备有限公司,江苏常州213025 [2]南京南瑞继保电气有限公司,江苏南京211100

出　　处：《电工技术》2021年第5期3-5,共3页Electric Engineering

摘　　要：为研究直流断路器内冷水路中的均压电极设计问题,将直流断路器冷却水路物理结构等效为电路图,实现对散热器支路漏电流的仿真。仿真结果表明在结构中增加均压电极能有效降低散热器支路的漏电流,其中在进出水支路均设置均压电极时漏电流能降至最小,这为直流断路器的均压电极设计提供了理论依据。In order to study the design of equalizing electrode in cold water circuit of the DC breaker,the physical structure of the cooling water circuit of the DC circuit breaker is equivalent to a circuit diagram to realize the simulation of the leakage current of the radiator branch circuit.The simulation results show that adding a voltage equalizing electrode in the structure can effectively reduce the leakage current of the radiator branch.Among them,the leakage current can be minimized when the voltage equalizing electrode is installed in the water inlet and outlet branches,which provides a theoretical basis for the voltage equalizing electrode design of the DC circuit breaker.

关 键 词：等效电路 高压直流断路器 均压电极 漏电流 

分 类 号：TM561[电气工程—电器]