新型叶片喷嘴旋转气体高压SF6断路器的研究第三部分:电弧行为研究

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI:10.1109/ICEPE-ST.2011.6122953

Yundong Cao, Shu Wang, Jing Li, Zhiming Qi

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引用次数: 0

摘要

本文以252kV单开SF6断路器为研究对象，建立了基于三维N-S方程的传统无叶片喷管和新型叶片喷管的三维数值计算模型。通过模拟，采用有限体积法研究了两种喷嘴灭弧过程中气体流量对电弧的影响。通过对比不同开度载荷下叶片喷嘴的温度、压力和速度矢量来判断消弧性能。通过对最大截面能量的分析，得出了能量的变化规律。研究表明，叶片喷嘴能有效地控制气流运动，加速电弧能量耗散，有利于断路器的中断。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Research on rotary-gas high voltage SF6 circuit breaker with novel blade nozzle Part III: Arc behavior research

A 252kV single-break SF6 circuit breaker is taken as the investigation model in this paper and 3D numerical calculation model of traditional no-blade nozzle and novel blade nozzle are presented based on 3D N-S equations. By simulating, influences of gas flow on arc during the arc extinguishing process of the two type nozzles have been researched using finite volume method (FVM). Arc extinction performance has been judged by comparison temperature, pressure and velocity vector of blade nozzle under different opening load. And the variation regular of energy is acquired by analyzing the maximum sections energy. Research indicates that blade nozzle can control gas flow movement effectively, accelerate arc energy dissipation, and benefit for the interruption of circuit breaker.

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2011 1st International Conference on Electric Power Equipment - Switching Technology

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