| 10 kV电网中性点接地方式的分析 |
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| 引用本文： | 王惠蔷,陈校华.10 kV电网中性点接地方式的分析[J].广东电力,2006,19(1):50-52,59. |
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| 作者姓名： | 王惠蔷 陈校华 |
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| 作者单位： | 广东电网公司,东莞供电局,广东,东莞,523008;广东电网公司,东莞供电局,广东,东莞,523008 |
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| 摘 要： | 介绍了10kV城市电网中性点经小电阻接地方式和经消弧线圈接地方式的发展状况，以及两种接地方式的适用范围，给出了电容电流的估算方法。阐述了中性点电阻值、消弧线圈补偿容量的选择方法及零序保护配置和整定要求。针对两种接地方式的不同，指出了在母线接地系统并列运行时的不同之处。
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| 关 键 词： | 10 kV电网 中性点接地方式 电容电流 接地电阻 消弧线圈 |
| 文章编号： | 1007-290X（2006）01-0050-03 |
| 收稿时间： | 2005-08-25 |
| 修稿时间： | 2005-08-25 |
Analysis of neutral-point earthing manners of 10 kV power grid |
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| WANG Hui-qiang,CHEN Xiao-hua.Analysis of neutral-point earthing manners of 10 kV power grid[J].Guangdong Electric Power,2006,19(1):50-52,59. |
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| Authors: | WANG Hui-qiang CHEN Xiao-hua |
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| Affiliation: | Dongguan Power Supply Bureau, Guangdong Power Grid Corp., Dongguan, Guangdong 523008, China |
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| Abstract: | This paper introduces the development of neutral-point earthing through small resistance and through arc- suppression coil in 10 kV urban power grid, describing the application scope of the two carthing methods, and presenting the estimation method of capacitive current, it also elaborates on the selection of neutral-point resistance value, the compensating capacity of arc-suppression coil as well as the configuration and setting requirements of zero-sequence protection. In view of the distinctness between the two methods, the differences during parallel operation of bus grounding systems are compared. |
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| Keywords: | 10 kV power grid neutral-point earthing method capacitive current earth resistance arc-suppression coil |
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