Study on Selective Leakage Protection System Based on Natural DC
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摘要: 分析现有井下漏电保护原理存在的不足,以目前直流选择性漏电保护研究1为基础,以中性点不接地的两分支电网为例分析了单相漏电情况下自然直流选择性漏电保护原理,并论证了可行性。Abstract: On the basis of analyzing disadvantages of principle for all kinds of existing selective leakage protection, this paper analyzed a selective leakage protection system of natural DC according to two branches distribution networks. Finally the selective principle was proved to be feasible.
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Key words:
- coal mine /
- leakage protection /
- natural DC /
- selectivity /
- harmonic analysis
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