[1]万 帅,许 衡,惠 康,等.电阻片介电常数对GIS罐式避雷器电位分布的影响[J].电瓷避雷器,2020,(01):42-46.[doi:10.16188/j.isa.1003-8337.2020.01.007]
 WAN Shuai,XU Heng,HUI Kang,et al.Effect of Dielectric Constant of Resistor on Potential Distribution of GIS Tank Arrester[J].,2020,(01):42-46.[doi:10.16188/j.isa.1003-8337.2020.01.007]
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电阻片介电常数对GIS罐式避雷器电位分布的影响()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年01期
页码:
42-46
栏目:
避雷器
出版日期:
2020-02-20

文章信息/Info

Title:
Effect of Dielectric Constant of Resistor on Potential Distribution of GIS Tank Arrester
作者:
万 帅1 许 衡1 惠 康2 曹 伟1 谷山强1 余飞宏2 郭 洁2
(1.国网电力科学研究院武汉南瑞有限责任公司,武汉 430074; 2.西安交通大学电气工程学院,西安 710049)
Author(s):
WAN Shuai1 XU Heng1 HUI Kang2 CAO Wei1 GU Shanqiang1 YU Feihong2 GUO Jie2
(1.Wuhan NARI Limited Company, State Grid Electric Power Research Institute, Wuhan 430074, China; 2.School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China)
关键词:
GIS 避雷器 高梯度电阻片 相对介电常数 不均匀系数
Keywords:
GIS arrester high-gradient resistor relative dielectric constant uneven coefficient
DOI:
10.16188/j.isa.1003-8337.2020.01.007
摘要:
为了实现超特高压交流无间隙金属氧化物GIS罐式避雷器(以下简称GIS罐式避雷器)的小型化,制造商多采用高梯度电阻片。由于影响避雷器电位分布影响权重最大的因素是电阻片介电常数,而高梯度电阻片的显著特征之一就是相对介电常数较小,这样会使避雷器的电位分布更容易受杂散电容的干扰而更加不均匀,从而影响避雷器的运行可靠性。以某500 kV GIS罐式避雷器为原型,建立三维电场仿真模型,利用有限元计算软件COMSOL仿真研究比较了使用传统电阻片和高梯度电阻片避雷器的电位分布的差异,分析了电阻片相对介电常数对避雷器电位分布的影响和规律,研究结果对超特高压GIS罐式避雷器设计和参数选取具有重要参考价值。
Abstract:
In order to achieve miniaturization of ultra-high-voltage AC gapless metal oxide GIS tank arresters(hereinafter referred to as GIS tank arresters), high-gradient resistors are usually adopted. The most important factor affecting the potential distribution of the arrester is the dielectric constant of the resistor. The relative dielectric constant of the high-gradient resistor is smaller, which makes the potential distribution of the arrester more susceptible to interference from stray capacitance and more uneven. This affects the operational reliability of the arrester. In this paper, a 500 kV GIS tank arrester is used as a prototype to establish a three-dimensional electric field simulation model. The potential distribution of the high-gradient resistor arrester is studied by using the finite element calculation software COMSOL. The influence of the relative dielectric constant of the resistor on the potential distribution of the arrester is analyzed. And the research results provide important reference for the design and parameter selection of ultra-high pressure GIS tank arrester.

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备注/Memo

备注/Memo:
收稿日期:2019-08-29作者简介:万帅(1983—),男,博士,高级工程师,主要从事功能陶瓷材料、片式压敏电阻器,浪涌保护器、避雷器以及电力系统雷电防护技术研究。基金项目:国家电网公司科技项目《高梯度氧化锌电阻片配方、工艺及应用技术研究(编号:52110417000S)》。
更新日期/Last Update: 2020-02-20