| 郑州煤业集团矿山线雷击断线事故的分析与对策 |
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| 引用本文： | 董爱华,王玉梅,朱登惠,孙岩州,田书.郑州煤业集团矿山线雷击断线事故的分析与对策[J].工矿自动化,2009,35(9). |
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| 作者姓名： | 董爱华 王玉梅 朱登惠 孙岩州 田书 |
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| 作者单位： | 1. 河南理工大学,河南,焦作,454000
2. 郑州煤业集团供电处,河南,新密,450003 |
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| 基金项目： | 郑煤集团科技攻关项目(07041080100324) |
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| 摘 要： | 雷击断线是严重的煤矿供电安全事故,直接威胁着煤矿的安全生产。文章介绍了雷击断线事故的原因;通过建立雷击导线的电流源电路模型,分析了雷电流及其引发的相间短路电流的热效应和雷击断线的机理;给出了接地系统不完善是造成雷击断线事故的间接原因、雷击引发的相间短路电流是造成断线的直接原因的结论;最后,结合供电线路的实际提出了防止雷击事故的技术对策。
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| 关 键 词： | 35kV供电线路 雷击断线 接地电阻 避雷线 |
Analysis of Wire Breakage Accident by Lightning Stroke of Mine Line of Zhengzhou Mining Group and Its Countermeasures |
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| DONG Ai-hua,WANG Yu-mei,ZHU Deng-hui,SUN Yan-zhou,TIAN Shu.Analysis of Wire Breakage Accident by Lightning Stroke of Mine Line of Zhengzhou Mining Group and Its Countermeasures[J].Industry and Automation,2009,35(9). |
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| Authors: | DONG Ai-hua WANG Yu-mei ZHU Deng-hui SUN Yan-zhou TIAN Shu |
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| Affiliation: | 1.Henan Polytechnic University;Jiaozuo 454000;China.2.Power Department of Zhengzhou Mining Group;Xinmi 450003;China |
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| Abstract: | Wire breakage by lightning stroke is serious power safety accident of coal mine and threasts safety production of coal mine directly.The paper introduced reasons of wire breakage accident by lightning stroke, analyzed lightning current and thermal effect of short-circuit current in phase to phase induced by lightning current and mechanism of wire breakage by lightning stroke,gave results that the imperfect grounding system was indirect reason of wire breakage accident by lightning stroke and short-circuit c... |
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| Keywords: | 35 kV power line wire breakage by lihtning stroke grounding resistance lightning shield line |
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