| 采用消弧线圈并联中电阻的小电流接地系统故障选线方式 |
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| 引用本文： | 戴军瑛.采用消弧线圈并联中电阻的小电流接地系统故障选线方式[J].电力科学与工程,2006(4):45-47. |
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| 作者姓名： | 戴军瑛 |
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| 作者单位： | 上海市电力公司,松江供电公司,上海,201600 |
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| 摘 要： | 介绍了中性点不接地系统和经消弧线圈接地系统中普遍采用的接地选线方式原理及优缺点,提出了经消弧线圈接地系统在单相接地故障时瞬时投入并联中电阻选线的新方法。通过计算分析和实际运行经验表明,采用该种选线方式能极大提高单相永久接地故障的选线准确性。
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| 关 键 词： | 小电流接地系统 接地选线 消弧线圈 并联中电阻 |
| 文章编号： | 1672-0792(2006)04-0045-03 |
| 修稿时间： | 2006年8月15日 |
A Fault Line Selection Method for Small Current Neutral Grounded System by Arc Suppression Coil with Parallel Medium Resistance |
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| DAI Jun-ying.A Fault Line Selection Method for Small Current Neutral Grounded System by Arc Suppression Coil with Parallel Medium Resistance[J].Power Science and Engineering,2006(4):45-47. |
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| Authors: | DAI Jun-ying |
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| Abstract: | The theory,merits and shortcomings of the fault line selection methods commonly adopted in the neutral indirect grounding power system and arc suppression coil grounded system are introduced.A new method of switching on parallel medium resistance to select the fault line instantaneously when the single-phase earth fault occurs in the arc suppression coil grounded system is proposed.Computation analysis and practical operation experience prove that this method can significantly improve the accuracy of fault line selection for the single-phase earth fault. |
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| Keywords: | small current neutral grounded system fault line selection arc suppression coil parallel medium resistance |
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