| 基于电阻分压器的10kV电子式电压互感器的研制 |
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| 引用本文： | 方春恩,李伟,任晓,王军,张彼德.基于电阻分压器的10kV电子式电压互感器的研制[J].西华大学学报(自然科学版),2010,29(2):148-151,155. |
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| 作者姓名： | 方春恩 李伟 任晓 王军 张彼德 |
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| 作者单位： | 西华大学电气信息学院,四川,成都,610039 |
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| 基金项目： | 四川省电力电子与电力传动重点学科，西华大学智能电气设备重点实验室项目 |
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| 摘 要： | 基于电阻分压器的电子式电压互感器(EVT)的原理、结构和输出信号等与传统的电压互感器有很大的不同,其性能主要受电阻特性和杂散电容的影响。本文利用ansoft软件包建立了分压器的有限元二维模型并对电场进行了分析,根据电场分布确定了电子式互感器的屏蔽罩及均压环的设计。在静电场分析基础上,研制了一台电阻分压式的10kV电子式电压互感器,并对准确度进行了测试。测试结果表明,本文设计的10kV电子式电压互感器满足GB/T 20840.7-2007标准要求,准确度达0.2级。
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| 关 键 词： | 电阻分压器 电子式电压互感器(EVT) 均压环 电场分布 |
Development of 10kV Electronic Voltage Transformer Based on Resistor Divider |
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| FANG Chun-en,LI Wei,REN Xiao,WANG Jun,ZHANG Bi-de.Development of 10kV Electronic Voltage Transformer Based on Resistor Divider[J].Journal of Xihua University:Natural Science Edition,2010,29(2):148-151,155. |
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| Authors: | FANG Chun-en LI Wei REN Xiao WANG Jun ZHANG Bi-de |
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| Affiliation: | FANG Chun-en,LI Wei,REN Xiao,WANG Jun,ZHANG Bi-de(School of Electrical Engineering , Information,Xihua University,Chengdu 610039 China) |
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| Abstract: | The principle,structure and output signal of an electronic voltage transformer based on a resistive voltage divider are quite different with that of a traditional voltage transformer.The performance of a resistor voltage transformer will be affected by the resistors and stray capacitance.With the use of a soft software package,the electric field analysis of the resistor voltage transformer is conducted through an FEM 3D model.The shielding and equalizing ring is designed in terms of the electric field distr... |
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| Keywords: | resistor divider electronic voltage transformer equalizing ring electric field distribution |
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