矿井低压电网漏电保护装置研究
Mine Low Voltage Leakage Protection Device studies
本文在分析矿井低压电网中性点不同接地方式的基础上,从人身安全、供电可靠性等方面详细比较了各种接地方式的优缺点,得出了中性点经高阻接地或中性点经电抗串高阻接地更适合矿井低压电网系统,给出了基于零序电导法的原理与保护方法。并介绍了一种基于零序导纳的漏电保护器的软、 硬件设计方案。实验和实际运行结果表明,该保护装置误差较小,能够满足煤矿井下电网的漏电保护要求。
Based on analysing different grounding neutral of low voltage network , from personal safety, supply reliability, a detailed comparison of the advantages and disadvantages of various grounding obtained high resistance grounded neutral point or neutral Point by the series reactance is more suitable for high resistance grounded low-voltage grid system of mine was given based on the principle of zero-sequence conductivity and protection methods. And describes the zero-sequence admittance based on the leakage protection software and hardware design. Experiments and practical operation shows that the error is smaller protective devices to meet the coal mine grid leakage protection requirements.
陈奎、陈星延
矿山电气电工基础理论高电压技术
漏电保护零序电导中性点接地单片机
leakage protectionzero-sequence conductanceneutral groundingmicrocomputer
陈奎,陈星延.矿井低压电网漏电保护装置研究[EB/OL].(2011-08-03)[2025-08-25].http://www.paper.edu.cn/releasepaper/content/201108-43.点此复制
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