新型叶片喷嘴旋转气高压SF6断路器的研究第二部分:冷流中断下的运动特性分析

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI:10.1109/ICEPE-ST.2011.6122952

Yundong Cao, Shu Wang, Xiaoming Liu, Zhiming Qi

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引用次数: 0

摘要

本文以252kV单开SF6断路器(CB)为研究模型，基于N-S方程建立了6种不同叶片轮廓的不同喷嘴和三维气体流场模型。采用有限体积法分析了不同喷嘴灭弧室在断流过程中冷流场参数的变化规律。通过改变叶片的角度、数量和高度，分析了叶片外形对气流速度、压温比和压力等参数的影响。得到了旋转燃气燃烧器合理的喷嘴叶片结构。

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 II: Motion behavior analyses under cold flow interruption

A 252kV single-break SF6 circuit breaker (CB) is taken as the investigation model in this paper, and six different nozzles with different blade contour and 3D gas flow field model are presented based on N-S equations. And the variations of the cold flow field parameters in arc-quenching chamber with different nozzles have been obtained using finite volume method (FVM) during the interrupting. The influences of blade contour on the gas flow parameters, such as velocity, pressure-temperature ratio and pressure are analyzed by changing the angle, number and the height of the blade. And the reasonable nozzle blade structure of the rotary-gas CB is obtained.

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

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