基于零序电流方向的选择性漏电保护系统的研究  

SELECTIVE LEAKAGE PROTECTIVE SYSTEM BASED ON ZERO SEQUENCE CURRENT DIRECTION

作　　者：宋建成[1,2] 谢恒坤[1,2] 杨同敏 李安平 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室 [2]潞安矿务局王庄矿

出　　处：《电网技术》1998年第9期53-56,共4页Power System Technology

摘　　要：在分析国内外漏电保护装置现存问题的基础上，文章提出了一种基于零序电流方向的矿井低压电网选择性漏电保护系统，重点讨论该系统的工作原理、硬件结构、软件设计及抗干扰技术。最后介绍试验结果和应用情况。On the basis of analysing the problems exsisting leakage protective equipmemts in China and other countries,the selective leakage protective system for underground LV distribution networks based on zero sequence current direction is presented in this paper. The operating principle, hardware structure,software design and anti interference of the system are emphatically discussed. Finally,the testing results and application of the system is described.

关 键 词：零序电流 漏电保护 低压电网 电力系统 煤矿 

分 类 号：TM774[电气工程—电力系统及自动化]