| 矿山电网漏电保护的研究 |
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| 引用本文： | 陈奎,陈士军,唐轶. 矿山电网漏电保护的研究[J]. 电气应用, 2004, 0(11): 61-64 |
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| 作者姓名： | 陈奎 陈士军 唐轶 |
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| 作者单位： | 中国矿业大学信息与电气工程学院,221008;武汉大学电力学院,430072 |
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| 摘 要： | 分析了矿山电网供电的特点 ,给出了附加直流电源的电流与系统绝缘电阻的关系 ,系统正常运行与漏电故障时导纳的变化。提出了基于附加直流电源和导纳 (有功导纳 )增量原理的漏电保护新判据。介绍了基于这些原理的微机漏电保护装置 ,经现场运行表明选线准确、可靠。
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| 关 键 词： | 矿山电网 漏电保护 导纳 |
| 修稿时间： | 2004-05-20 |
Research on Ground-fault Protection Systems for Underground Distribution Networks |
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| Chen kui. Research on Ground-fault Protection Systems for Underground Distribution Networks[J]. Electrotechnical Application, 2004, 0(11): 61-64 |
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| Authors: | Chen kui |
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| Affiliation: | China University of Mining&Technology |
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| Abstract: | The character of underground distribution networkand are analysed,the relation between the current of additional DC source and insulated resistance of system based on the changing of admittance when system working orderly and ground-fault is provided. The new criterion of ground-fault protection based on additional DC source and theory of admittance increment is provided and the microcomputer setting of ground-fault protection based on this theory is introduced. This microcomputer operated accurately and credibly in selection. |
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| Keywords: | underground distribution network ground-fault protection admittance |
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