110 kV三相共罐GIS避雷器相间电磁耦合对电位及电场分布的影响  

Potential Distribution and Electric Field Distribution of the Plase-to-Phase Electromagnetic Coupling of 110 kV Three-Phase Common Tank GIS Lightning Arrester

作　　者：邱云鹏 万帅[2] 曹伟[2] 张伟[1] 郭洁[1] 赵进全[1] QIU Yunpeng;WAN Shuai;CAO Wei;ZHANG Wei;GUO Jie;ZHAO Jinquan(School of Electrical Engineering,Xi′an Jiaotong University,Xi′an 710049,China;Wuhan NARI Limited Company,State Grid Electric Power Research Institute,Wuhan 430074,China)

机构地区：[1]西安交通大学电气工程学院,西安710049 [2]国网电力科学研究院武汉南瑞有限责任公司,武汉430074

出　　处：《电瓷避雷器》2022年第5期48-52,共5页Insulators and Surge Arresters

摘　　要：随着110 kV三相共罐GIS避雷器的小型化,结构更加紧凑,导致三相间电磁耦合更加紧密,造成对GIS避雷器内部电位分布和电场分布不可忽视的影响。本研究采用有限元计算软件COMSOL建立了110 kV三相共罐GIS避雷器的电场仿真模型,研究了三相电阻片芯体的电位分布、电场分布。分析了铝垫块布置位置、上端盖罩入深度、三相芯体间距以及三相芯体瞬态电压相位对避雷器电位分布和最大电场强度的影响。研究结果表明:铝垫块布置位置、上端盖罩入深度和三相芯体间距对避雷器电阻片电位分布均有影响,三相电压瞬态相位对内部最大电场强度影响较大,研究结果对三相共罐避雷器的设计和参数选用具有重要参考价值。With the miniaturization and compact structure of the 110 kV three-phase common tank GIS arrester, the electromagnetic coupling between the three phases becomes tighter, resulting in a non-negligible influence on the internal potential distribution and electric field distribution of the GIS arrester. The finite element calculation software COMSOL is used to establish the electric field simulation model of the 110 kV three-phase common tank GIS arrester, and to study the potential distribution and electric field distribution of the three-phase resistor chip core. The effects of arrangement of the aluminum pads, depth of the upper cover and distance of three-phase core on the potential distribution of the arrester, and the influence of three phases at different phases on the maximum electric field intensity of the arrester are analyzed. The research results show that arrangement of aluminum pads, depth of the upper cover and distance of three-phase core have an impact on the axial potential distribution of the arrester resistors. And the different phases of three phases have a greater impact on the maximum electric field intensity. The research results have important reference value for the design and parameter selection of the three-phase common tank arrester.

关 键 词：避雷器 电位分布 电场强度 GIS 

分 类 号：TM862[电气工程—高电压与绝缘技术]