低压线路故障电弧自动监测系统的开发  

Development of Automatic Monitoring System of Fault Arc in Low Voltage Lines

作　　者：王莉[1] 苏波[1] 董爱华[1] 

机构地区：[1]河南理工大学电气工程与自动化学院,河南焦作454000

出　　处：《低压电器》2010年第2期17-20,31,共5页Low Voltage Apparatus

基　　金：河南省科技攻关项目(0624460012)

摘　　要：低压线路故障电弧的检测在电气火灾防治中具有重要意义,但检测结果的准确度易受负载变化和正常电弧干扰的影响。采用嵌入式技术和总线技术,开发了一套自动监测系统,监测终端通过RS-485总线组成分布式网络。系统具有信号检测、数据存储、网络通信、声光报警等功能。对监测系统的组成、电弧信号的检测、监测终端的软硬件设计进行了详细的介绍。实验结果表明,该系统对于提高故障电弧检测的准确性具有一定的作用。The detection of fault arc in low voltage lines has great significance in electric fire prevention, but the detection accuracy is liable to be affected by load variation and interference of normal arc. An automatic monitoring system was developed by using embedded technology and bus technology. The monitoring terminals constitute a distributed network via RS - 485 bus. The system had the functions of signal detection, data storage, network communication and sound light alarm. Detailed introductions of system composition, detection of fault arc, software and hardware design of the terminal were given. The results showed that the system helped improve the detection accuracy of fault arc to a certain extend.

关 键 词：低压线路 故障电弧 自动监测系统 

分 类 号：TM501.2[电气工程—电器]