| 矿用高压配电箱零序电流比幅比相漏电保护 |
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| 引用本文： | 王红俭,刘鹏飞.矿用高压配电箱零序电流比幅比相漏电保护[J].煤炭科学技术,2011,39(6):70-74. |
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| 作者姓名： | 王红俭 刘鹏飞 |
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| 作者单位： | 山西煤炭职业技术学院机电工程系,山西太原,030031 |
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| 摘 要： | 为了解决煤矿高压配电箱现有的零序电流方向保护不能适应不同小接地电流系统,给生产、使用带来不便的问题,根据各小接地电流系统中漏电故障支路零序电流分量与零序电压的相位关系,提出了矿用高压配电箱零序电流分量比幅比相选择性漏电保护系统,只需在软件上按不同接地系统设定不同算法,就可在煤矿各种小接地电流系统通用。经实验室试验证明该系统在单相故障状态下能准确可靠地检测出故障线路并驱动跳闸。
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| 关 键 词： | 矿用高压配电箱 零序电流分量 比幅比相 选择性 漏电保护 |
Specific Amplitude and Specific Phase Earth Leakage Protection of Zero Sequence Current for Mine High Voltage Distribution Box |
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| WANG Hong-jian,LIU Peng-fei.Specific Amplitude and Specific Phase Earth Leakage Protection of Zero Sequence Current for Mine High Voltage Distribution Box[J].Coal Science and Technology,2011,39(6):70-74. |
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| Authors: | WANG Hong-jian LIU Peng-fei |
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| Affiliation: | WANG Hong-jian,LIU Peng-fei(Department of Electromechanical Engineering,Shanxi Vocational and Technical College of Coal,Taiyuan 030031,China) |
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| Abstract: | In order to solve the present zero sequence current direction protection of the mine high voltage distribution box could not handle different small grounding current system,which could cause inconvenient problems to the production and application,according to the phase relationship between the zero sequence current component and the zero sequence voltage of the earth leakage branching-off in each small grounding current system,a zero sequence current component specific amplitude and specific phase selectivi... |
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| Keywords: | mine high voltage distribution box zero sequence current component specific amplitude and specific phase selectivity leakage protection |
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