| 开关柜内部电弧故障产生力和热的计算模型 |
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| 引用本文： | 黄锐,胡毅亭,马炳烈,陈网桦.开关柜内部电弧故障产生力和热的计算模型[J].爆炸与冲击,2000,20(2):125-130. |
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| 作者姓名： | 黄锐 胡毅亭 马炳烈 陈网桦 |
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| 作者单位： | 1. 南京理工大学化工学院,江苏,南京,210094
2. 甘肃天水长城开关厂,甘肃,天水,741018 |
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| 摘 要： | 开关柜内部电弧故障会引起许多效应。在电弧周围引起压力升高 ,并在柜体内和空气中引起温度升高。建立的模型对内部电弧故障引起的力和热的效应规律进行研究 ,并对这两种效应进行了数值求解。结果表明 ,对于持续时间为 1s的电弧故障 ,柜体内部压力在最初阶段上升很快 ,在达到一个峰值后下降直至消失 ,但热效应持续时间较长。
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| 关 键 词： | 开关柜 内部电弧故障 压力上升 热效应 计算模型 |
Calculation Model for the Effects of Force and Heat Produced by Inner Arc Fault in Switchgear Cabinet |
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| HUANG Rui,HU Yi-ting,MA Bing-lie,CHEN Wang-hua.Calculation Model for the Effects of Force and Heat Produced by Inner Arc Fault in Switchgear Cabinet[J].Explosion and Shock Waves,2000,20(2):125-130. |
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| Authors: | HUANG Rui HU Yi-ting MA Bing-lie CHEN Wang-hua |
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| Institution: | HUANG Rui 1,HU Yi ting 1,MA Bing lie 2,CHEN Wang hua 1 |
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| Abstract: | The inner arc faults in switchgear cabinet cause many effects.Both the temperature of air around the arc and the cabinet shell and the pressure of air will increase.This model mainly studies the effects of force and heat caused by inner arc faults and the numerical solution of the effects are given out.For an arc fault with duration of 1s,the calculation results show that the inner pressure increases rapidly within the first several millisecond,and decreases after getting to a summit value,while the heat effect will last for a relatively long period. |
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| Keywords: | switchgear cabinet inner arc fault pressure rise heat effect calculating model |
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