Research on the Internal Insulation Characteristic of 220 kV GIS Electronic Voltage Transformer

WENG Lingyun; ZHANG Guangtai; LI Lei; WANG Qiang; SHI Qinmin; LUO Sunan

doi:10.13296/j.1001-1609.hva.2016.02.023

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Research on the Internal Insulation Characteristic of 220 kV GIS Electronic Voltage Transformer

更新时间：2025-04-26

- Research on the Internal Insulation Characteristic of 220 kV GIS Electronic Voltage Transformer
- High VoltageApparatus Vol. 52, Issue 2, Pages: 142-147(2016)
- 作者机构：
  
  1. 常州博瑞电力自动化设备有限公司
  2. 南京南瑞继保电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.02.023
  CLC： TM451
- Published：2016
- 稿件说明：
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[1]翁凌云,张广泰,李磊,王强,石亲民,罗苏南.220kV GIS电子式电压互感器内部绝缘特性研究[J].高压电器,2016,52(02):142-147.

WENG Lingyun, ZHANG Guangtai, LI Lei, et al. Research on the Internal Insulation Characteristic of 220 kV GIS Electronic Voltage Transformer[J]. High voltageapparatus, 2016, 52(2): 142-147.
[1]翁凌云,张广泰,李磊,王强,石亲民,罗苏南.220kV GIS电子式电压互感器内部绝缘特性研究[J].高压电器,2016,52(02):142-147. DOI： 10.13296/j.1001-1609.hva.2016.02.023.

WENG Lingyun, ZHANG Guangtai, LI Lei, et al. Research on the Internal Insulation Characteristic of 220 kV GIS Electronic Voltage Transformer[J]. High voltageapparatus, 2016, 52(2): 142-147. DOI： 10.13296/j.1001-1609.hva.2016.02.023.

摘要

随着智能变电站技术的快速发展

GIS电子式电压互感器已逐渐应用于智能变电站中。电子式电压互感器的绝缘特性是制约其长期运行稳定性和测量精度的关键因素之一

保证互感器内部绝缘可靠尤为重要。笔者通过理论分析、有限元仿真及实验相结合的方法

对220 k V电子式电压互感器内部绝缘特性进行了研究。首先通过理论分析得出互感器内部电场分布和场强

采用增加屏蔽结构对场强集中处进行了优化改进

最后结合有限元仿真和实验对改进后的互感器内部绝缘进行了验证

分析及试验表明互感器的绝缘特性满足运行要求。

Abstract

Under the rapid development of smart substation technology

electronic voltage transformer used in 220 k V gas insulated switchgear（GIS） has been gradually applied in smart substation. The insulation performance of the electronic voltage transformer is a key factor for its long-term reliability and measurement accuracy. And to ensure the transformer internal insulation strength is particularly important. The paper

combining theoretical analysis

finite element and experimental methods

researches on the internal insulation property of electronic voltage transformer.Firstly

the distribution of the electric field and electric field strength is studied by theoretical analysis; Then the optimization method of added internal shield cover is given; Finally

combining finite element and experimental methods

the internal insulation of optimized transformer is verified. The results show that the internal insulation property can satisfy the needs of transformer long-term reliability.

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