| 小电阻接地系统断线状况分析 |
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| 引用本文： | 周陶宏. 小电阻接地系统断线状况分析[J]. 供用电, 2008, 25(2): 30-33 |
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| 作者姓名： | 周陶宏 |
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| 作者单位： | 上海市电力公司市区供电公司,上海,200080 |
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| 摘 要： | 通过对单相接地断线的仿真计算,分析在断线单相接地中过渡电阻和负荷电流,对零序电流、负序电流、零序电压的影响作用。对各种不同负荷、经不同过渡电阻接地情况,提出利用现有微机保护装置中的功能资源,对断线接地报警的整定提出建议和初步方案。
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| 关 键 词： | 小电阻 接地系统 断线 |
| 文章编号： | 1006-6357(2008)02-0030-04 |
Analysis on the line-break status of small resistance grounding system |
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| ZHOU Taohong. Analysis on the line-break status of small resistance grounding system[J]. Distribution & Utilization, 2008, 25(2): 30-33 |
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| Authors: | ZHOU Taohong |
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| Abstract: | By means of simulating calculation,this paper analyzes the influences of transient resistance and load current on zero sequence current,negative sequence current and zero sequence voltage in single-phase grounding caused by line-break.In the light of different electric loads via different resistances,this paper presents the suggests and preliminary scheme on the setting of line-break caused grounding alarm taking advantage of the available resources of microcomputer-based protection devices. |
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| Keywords: | small resistance grounding system line-break |
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