选择性漏电保护在矿用低压馈电系统中的应用
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摘要
针对煤矿低压供电系统常见的漏电故障,分析了煤矿三级馈电系统结构,对发生漏电故障时线路中零序电流的产生机理、测量方法和漏电支路选判依据等问题进行了研究,为选择性漏电防护技术的实施提供了理论依据,在此基础上,提出了选择性漏电系统的硬件和软件设计方案。本文研究内容可为煤矿选择性漏电保护系统的应用提供重要参考。
Aiming at the common seen electricity leakage in coal mine low-voltage power supply system,the structure of three-level power supply system is analyzed,and the mechanism of zero-sequence Current,the measurement method and the selection of leakage circuit branch are studied,which provides a theoretical basis for the implementation of selective electricity leakage protection technology. On the above mentioned basis,the hardware and software design scheme of selective electricity leakage protection system is put forward. The research is of important reference value for the application of selective electricity leakage protection system in coal industry.
Aiming at the common seen electricity leakage in coal mine low-voltage power supply system,the structure of three-level power supply system is analyzed,and the mechanism of zero-sequence Current,the measurement method and the selection of leakage circuit branch are studied,which provides a theoretical basis for the implementation of selective electricity leakage protection technology. On the above mentioned basis,the hardware and software design scheme of selective electricity leakage protection system is put forward. The research is of important reference value for the application of selective electricity leakage protection system in coal industry.
引文
[1]周云龙.井下供电系统与漏电保护系统的探究分析[J].煤炭技术,2014,33(2):212-214.
[2]张强.矿用低压选择性漏电保护装置的研制[D].辽宁工程技术大学,2012.
[3]靳造造.煤矿井下低压电网选择性漏电保护研究[J].中国煤炭工业,2012(5):58-59
[4]李美璐.煤矿井下选择性漏电保护系统研究[J].山西煤炭管理干部学院学报,2016,29(4):53-54.
[5]樊烨.基于选择性漏电保护原理的防越级跳闸研究[J].煤,2016,25(9):75-77.
[2]张强.矿用低压选择性漏电保护装置的研制[D].辽宁工程技术大学,2012.
[3]靳造造.煤矿井下低压电网选择性漏电保护研究[J].中国煤炭工业,2012(5):58-59
[4]李美璐.煤矿井下选择性漏电保护系统研究[J].山西煤炭管理干部学院学报,2016,29(4):53-54.
[5]樊烨.基于选择性漏电保护原理的防越级跳闸研究[J].煤,2016,25(9):75-77.