| 小电流接地系统的新判据在检测工程应用分析 |
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| 引用本文： | 王晓宁,闫志刚,宋志勇.小电流接地系统的新判据在检测工程应用分析[J].微计算机信息,2010(4). |
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| 作者姓名： | 王晓宁 闫志刚 宋志勇 |
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| 作者单位： | 驻马店供电公司; |
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| 摘 要： | 针对当前在小电流接地系统中,尤其是经消弧线圈接地的系统中,所装设的接地检测(选线)装置正确动作率不高的问题,根据系统的特点,对小电流接地系统的选线设备原理、采样误差等方面问题进行剖析,提出了减小综合测量误差,提高选线准确性、可靠性的措施。
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| 关 键 词： | 小电流接地系统 零序电流互感器 接地检测(选线) |
Analysis of The New Predications of Power System with Indirectly Grounded Fault for Line Selection |
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| WANG Xiao-ning YAN Zhi-gang SONG Zhi-yong.Analysis of The New Predications of Power System with Indirectly Grounded Fault for Line Selection[J].Control & Automation,2010(4). |
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| Authors: | WANG Xiao-ning YAN Zhi-gang SONG Zhi-yong |
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| Affiliation: | WANG Xiao-ning YAN Zhi-gang SONG Zhi-yong(Zhu Ma Dian Supply Company,463000,China) |
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| Abstract: | At present ,there are many kinds of discrimination equipment for earth fault ,which are used in the power system grounded through zero sequence current ,especially that with grounding coil ,but the function correctness is low. Based on the characteristics of the system ,the paper analyses the problems from the perspective of engineering application,and puts forward measures with which the errors can be reduced ,and correctness and reliability of fault line selection can be improved. |
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| Keywords: | power system with indirectly grounded neutral zero sequence current trans former fault line selection |
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