Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF<sub>6</sub> Circuit Breaker

WANG Feiming; ZHAO Yisong; SHI Kejian; LI Bin; ZHANG Bin; XU Zhenyi

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Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF₆ Circuit Breaker

更新时间：2025-12-08

- Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF₆ Circuit Breaker
- Vol. 45, Issue 5, Pages: 1420-1428(2019)
- 作者机构：
  
  1. 国网辽宁省电力有限公司电力科学研究院
  2. 辽宁东科电力有限公司
  3. 国网高电压强电流实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 May 2019，
  
  Published：2019
- 稿件说明：
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WANG Feiming, ZHAO Yisong, SHI Kejian, et al. Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF₆ Circuit Breaker[J]. 2019, 45(5): 1420-1428.
DOI：

WANG Feiming, ZHAO Yisong, SHI Kejian, et al. Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF₆ Circuit Breaker[J]. 2019, 45(5): 1420-1428. DOI：

摘要

为了分析高压SF

断路器灭弧室内零区电弧等离子体与气流分子间能量运输物理过程

寻求最佳的小电流电弧开断控制策略

需要开展断路器开断零区电弧特性的仿真计算分析。建立了断路器开断电弧能量多物理场耦合计算模型

并计算了零区电弧等离子体密度及热力学特性参数的空间分布;然后采用多物理状态参数综合评判的方法

分析了不同开断电流、燃弧时间、开断速度等因素对零区电弧与气流分子间能量运输过程的影响

并求得了零区电弧等离子体物理特性变化规律及参数范围。计算结果表明:气流与电弧间的对流效应明显;当弧道出现温度小于4 000 K、密度大于3 kg/m

、焓值小于1.6×107 J/kg、电导率小于800 S/m的绝缘断点时

电弧熄灭。研究结果可以为高压SF

断路器灭弧室设计、操作机械特性选择、电弧熄灭过程物理特性分析提供重要的理论基础。

Abstract

In order to analyze the physical process between zero zone arc plasma and airflow intermolecular energy transport in the high voltage SF6 circuit breaker

and find the optimal control strategy of small current arc switching

the simulation analysis of arc characteristics on breaking zero zone is presented. The coupled field calculation physics of the breaking arc energy in the circuit breaker was established to calculate the spatial distribution of the zero zone arc plasma density and thermodynamic characteristics parameters. Using the comprehensive evaluation method of multiple physical state parameters

the effects of different breaking current

arcing time

breaking speed and other factors on the energy transport process betwe

en zero zone arc and gas flow were analyzed

the variation law and parameter range of the zero zone arc plasma physical properties were obtained. The calculation results show that there is a significant convection effect between the airflow and the arc. When the insulation break point with a temperature less than 4 000 K

a density greater than 3 kg/m

enthalpy value less than 1.6×107 J/kg

and a conductivity less than 800 S/m

the arc extinguishes.The research results can provide important theoretical basis for the design of the arc-extinguishing chamber of the high-voltage SF

circuit breaker

the selection of the mechanical characteristics of the operation

and the physical characteristics of the arc-extinguishing process.

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Related Author

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Related Institution

School of the Environment, Jiangsu University

State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University

School of Electrical Engineering, Wuhan University

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School of Electrical Engineering, Guangxi University

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Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF6 Circuit Breaker

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摘要

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Simulation Analysis of Arc Characteristics on Breaking Zero Zone in High Voltage SF₆ Circuit Breaker