Engineering Calculation of Surface Insulation in SF6 Gas

JIA Zhi-jie

doi:10.13296/j.1001-1609.hva.2011.10.010

您当前的位置：

首页 >

文章列表页 >

Engineering Calculation of Surface Insulation in SF6 Gas

更新时间：2025-04-26

- Engineering Calculation of Surface Insulation in SF6 Gas
- High VoltageApparatus Vol. 47, Issue 10, Pages: 48-52(2011)
- 作者机构：
  
  四川电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.10.010
  CLC： TM85
- Published：2011
- 稿件说明：
移动端阅览
[1]贾志杰.SF_6沿面绝缘的工程计算[J].高压电器,2011,47(10):48-52.

JIA Zhi-jie. Engineering Calculation of Surface Insulation in SF6 Gas[J]. High voltageapparatus, 2011, 47(10): 48-52.
[1]贾志杰.SF_6沿面绝缘的工程计算[J].高压电器,2011,47(10):48-52. DOI： 10.13296/j.1001-1609.hva.2011.10.010.

JIA Zhi-jie. Engineering Calculation of Surface Insulation in SF6 Gas[J]. High voltageapparatus, 2011, 47(10): 48-52. DOI： 10.13296/j.1001-1609.hva.2011.10.010.

摘要

随着采用SF6绝缘的高压输变电装置在工程中的广泛应用

如GIS和GIL

其内部支撑绝缘子的介电性能成了维持设备安全稳定运行的重要因素。文中建立了锥板电极系统来模拟GIS/GIL中同轴圆柱结构的电场分布

并选择一个考虑了7种影响因素的SF6沿面闪络电压的计算公式

对环氧树脂绝缘子进行了直流下不同SF6气压中沿面绝缘的工程计算

同时将计算结果与试验值比对以确定公式的适用范围。结果表明

计算公式能对直流电压下的SF6沿面绝缘进行工程近似计算

前提是电极表面平均粗糙度需要控制在12.5μm等级及更小

绝缘子在三结合点处的最大粗糙深度不超过200μm。

Abstract

In the SF6 insulated high voltage power transmission and transformation apparatuses

such as GIS and GIL

the dielectric strength of interior supporting insulators is an important factor for equipments’ safe and stable operation.In this paper

a cone-plate electrode assembly is built to simulate the electric field distribution of coaxial cylindrical structure inside the GIS/GIL

and a formula with seven influencing factors is chosen for calculation of flashover voltage in SF6.Then some epoxy resin insulators are selected to calculate the surface insulation in SF6 under DC voltage.Calculation results are compared with test ones to determine the applicable scope of the formula.Conclusions are drawn that the formula is appropriate for engineering calculation of surface insulation in SF6 under DC voltage on the premise that the average surface roughness of electrodes can not exceed the grade of 12.5 μm

and the maximum depth of surface roughness in the triple junction area can not exceed 200 μm.

关键词

Keywords

references

Views

232

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on the Measurement of Condensation Morphology on Epoxy Resin Surface Under Low Light Conditions and Its Impact on Flashover Characteristics

Effect of Electrode Surface Roughness on Dielectric Strength of SF₆, SF₆/N₂, SF₆/CO₂

The Optimization of the Current Transformer with High-altitude and Casting Resin Insulated

Study on Flashover Voltage of 35 kV Insulator Strings Hot Washed by Water Vapor

Electric Field Optimization of the Supporting Insulator of 500 kV DC GIL

Related Author

WANG Shaoqi

YANG Zhanhao

JIA Zijian

FENG Pinghui

CHEN Zongju

WU Tian

萧凤良

邱毓昌

Related Institution

State Grid Zhejiang Huzhou County Power Supply Co., Ltd.

Hubei Provincial Engineering Technology Research Center for Transmission Line

College of Electrical Engineering & New Energy, China Three Gorges University

西安交通大学

Yunnan Switchgear Factory

⁰