126 kV GIS母线导电杆布置方式对异物敏感性研究  

Study on the Sensitivity of Layout 126 kV GIS Bus Bar Conductive Rod to Foreign Matter

作　　者：马飞越 丁培 朱洪波 牛勃 倪辉 田禄 MA Feiyue;DING Pei;ZHU Hongbo;NIU Bo;NI Hui;TIAN Lu(State Grid Ningxia Electric Power Corporation Research Institute,Yinchuan 750011,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,银川750011

出　　处：《高压电器》2021年第7期37-45,共9页High Voltage Apparatus

基　　金：宁夏自然科学基金项目(2020AAC03485)。

摘　　要：GIS设备内不同导电杆布置方式对罐体内部异物的敏感程度不同,文中以正三角布置、倒三角布置及侧三角布置三种典型导电杆布置方式为基础,采用COMSOL对罐体底部固定异物的电场强度进行仿真。通过可跳动异物力学特性分析,建立异物颗粒动态轨迹采集系统。研究表明126 k V GIS母线导电杆倒三角布置方式相比于正三角及侧三角方式,对固定异物引起电场强度畸变的程度更大,对可跳动异物跳动的高度更高、飞行时间更长,对GIS设备的危害性越大,侧三角布置方式次之,正三角布置方式相对不敏感。The layout of different conductive rod in GIS equipment has different degrees of sensitivity to foreign matter inside the enclosure.In this paper,such three typical layouts of conductive rod as positive triangle,inverted triangle and side triangle are taken as the base and the COMSOL is used to simulate the electric field strength of fixed foreign matter at the bottom of the enclosure.The dynamic trajectory collection system for foreign particles is set up through the analysis of the mechanical characteristics of pulsating foreign matter.The study shows that the inverted triangle layout of conductive rod of 126 kV GIS busbar,compared to positive triangle and side triangle,has a greater degree of distortion of the electric field strength due to fixed foreign matter,has a higher jumping height and longer flight time for beating foreign matter and greater hazard to the equipment.While,the side triangle layout is next and the positive triangle layout is relatively insensitive.

关 键 词：GIS母线 布置方式 异物 敏感性 电场强度 

分 类 号：TM595[电气工程—电器]