调容式消弧系统的故障选线分析  

Analysis of fault line in capacitance adjustable arc suppression system

作　　者：白永明 付周兴[2] 

机构地区：[1]陕西煤业澄合矿业公司机电动力部,陕西西安715200 [2]西安科技大学电气与控制工程学院,陕西西安710054

出　　处：《电气传动自动化》2012年第5期20-24,共5页Electric Drive Automation

摘　　要：对现有选线方法进行分析,对选线系统所面临问题进行了探讨,提出了采用消弧线圈和小电流选线一体化思想。当系统单相接地时,通过改变消弧补偿系统的脱谐度来计算各馈线回路的零序电流变化量选出故障线路,试验结果表明,该方法可以准确地实现小电流接地系统单相接地故障的选线,并且无需区分暂态和稳态过程。On the analysis of the existing line selection method and its system, the problems faced by the integration ideas of arc suppression coil and small current alignment are discussed. When the system is single- phase grounding, the zero sequence current variation of feeder circuit can be calculated for selecting the fault line by changing the out-of-resonance degree of arc-suppression compensation system. The test resuhs show that the method can accurately realize the single-phase ground fauh line of small current grounding system, and do not need distinguish between transient and steady process.

关 键 词：小电流接地系统 故障选线 DSP 调容式消弧线圈 

分 类 号：TM862.3[电气工程—高电压与绝缘技术]