Study on Breakdown Characteristic of Hot SF<sub>6</sub>

LIN Xin; XIA Yalong; SUN Guanglei; GUO Dan; TAN Shengwu; JIANG Jinghua; HE Jingjing; BIAN Zhiwen

doi:10.13296/j.1001-1609.hva.2018.07.013

您当前的位置：

首页 >

文章列表页 >

Study on Breakdown Characteristic of Hot SF₆

更新时间：2025-04-26

- Study on Breakdown Characteristic of Hot SF₆
- High VoltageApparatus Vol. 54, Issue 7, Pages: 111-118(2018)
- 作者机构：
  
  1. 沈阳工业大学电气工程学院
  2. 平高集团有限公司
  3. 国网福建省电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.07.013
  CLC： TM213
- Published：2018
- 稿件说明：
移动端阅览
[1]林莘,夏亚龙,孙广雷,郭丹,谭盛武,江经华,贺晶晶,卞志文.热态SF_6介质击穿特性研究[J].高压电器,2018,54(07):111-118.

LIN Xin, XIA Yalong, SUN Guanglei, et al. Study on Breakdown Characteristic of Hot SF₆[J]. High voltageapparatus, 2018, 54(7): 111-118.
[1]林莘,夏亚龙,孙广雷,郭丹,谭盛武,江经华,贺晶晶,卞志文.热态SF_6介质击穿特性研究[J].高压电器,2018,54(07):111-118. DOI： 10.13296/j.1001-1609.hva.2018.07.013.

LIN Xin, XIA Yalong, SUN Guanglei, et al. Study on Breakdown Characteristic of Hot SF₆[J]. High voltageapparatus, 2018, 54(7): 111-118. DOI： 10.13296/j.1001-1609.hva.2018.07.013.

摘要

采用质量作用定律法计算压强0.1

.0 MPa、温度40 000 K到300 K下SF

等离子体组分体积分数

分析热态SF

介质（3 500 K到300 K）的成分构成及其变化过程。采用两项近似法求解玻尔兹曼方程

计算不同折合电场下热态SF

介质中电子能量分布函数

分析不同碰撞过程中各微观粒子的折合电离系数和折合吸附系数

得到热态SF

介质的折合击穿场强

通过300 K下SF

气体击穿场强实验值验证了计算方法的准确性。研究表明:弧后热态SF

介质绝缘强度恢复过程中

温度下降到3 500 K到2 300 K时

热态SF

介质主要成分为绝缘能力较低的F、S、S2、F2

折合击穿场强值在30 Td（1 Td=1×10-21Vm2）左右;温度下降到2 300 K到1 500 K时

分解物迅速复合为绝缘性能优异的SF

折合击穿场强急剧上升至355 Td附近。研究结果可为揭示热态SF

介质绝缘强度恢复机理

解决高压SF

断路器弧后重击穿导致开断失败等问题奠定理论基础。

Abstract

In this paper

the mass action law method was used to calculate the component content of SF

plasma in apressure range 0.1

.0 MPa and temperature 40 000 K to 300 K.The composition and variation process of hot SF

with temperature between 3 500 K and 300 K were analyzed. First

a two-term approximate method was applied intosolution of Boltzmann equation to obtain the electron energy distribution function of hot SF

under different

reducedelectric field.Then

through analyzing reduced ionization coefficient and reduced adsorption coefficient of microscop-ic particles

the breakdown field strength of hot SF

was obtained.Finally

the accuracy of this method was proved bythe experimental testing on SF

breakdown field strength at 300 K.Results show that during the insulation strength re-covery process of hot SF

after arcing

when the temperature decreases to 3 500 K to 2 300 K

the main components ofhot SF

are F

and F2

which with low insulating strength.At the same time

the breakdown strength is about 30 Td（1 Td=1×10-21 Vm2）.When the temperature drops to 2 300 K to 1 500 K

the decomposers rapidly recombine into SF

and the breakdown strength sharply rises to about 355 Td.Results in this paper provide a theoretical foundation for re-vealing the recovery mechanism of hot SF

dielectric strength and solving the problems such as breaking failurecaused by re-strike in high voltage SF

circuit breakers.

关键词

Keywords

references

Views

218

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on Dielectric Breakdown Properties of Hot C₅F₁₀O/CO₂ Gas Mixture

Study on Influence of Air Pressure and Humidity on Air Gap Insulation Characteristics

Research on the Calculation of Critical Breakdown Field Strength of High Temperature Gas Mixtures

Research on Breakdown Properties of Hot SF₆/N₂ Mixed Gas

Study on Breakdown Characteristic of Hot SF₆/CF₄

Related Author

XU Jianyuan

LI Lei

CUI Zhaoxuan

LIN Xin

HU Yuanchao

LI Haitao

HUANG Tao

SU Menghan

Related Institution

College of Electrical and Electronic Engineering, Shandong University of Technology

Air Force Research Institute of PLA

State Grid Jiangsu Electric Power Engineering Consulting Co., Ltd.

Nuclear and Radiation Safety Center

School of Electrical Engineering, Shenyang University of Technology

⁰

Study on Breakdown Characteristic of Hot SF6

DOI：10.13296/j.1001-1609.hva.2018.07.013

摘要

Abstract

关键词

Keywords

references

Study on Breakdown Characteristic of Hot SF₆