摘要
在农村,由于线路绝缘老化、电气维修误操作或触电等造成的漏电事故时有发生,对于线路漏电发生的地点、故障时间、漏电流的大小缺乏有效准确的监测。通常,系统监测采用RS-485通信、现场总线技术等,铺设网络费用高,通信距离短,很难实现漏电远程监测。然而,利用嵌入式Modem通过电话网(PSTN)跟远方监测部门组成网络,不存在费用和距离的限制,能迅速找到故障线路的地点、故障的原因等,从而可以迅速排除漏电故障,保证电网的安全运行。
In the countryside,the electric leakage by insulation in the circuiting aging, the mistake of the electricity maintain or the electric shock always occur. There lacks a validity and accurate monitoring to the location,breakdown time and the size of the electric leakage. System monitoring with RS-485 communication and fieldbus, causes high expenses of the network building and short communication distance and hardly completes remote monitoring. This paper introduces a way using embedded modem through PSTN and monitoring section remote to constitute the network without restriction of expenses and the distance. The system can quickly find out the location and the reason of the breakdown circuit, thus can quickly exclude the electric leakage and guarantee the safe running of the electrified wire network.\;
出处
《浙江科技学院学报》
CAS
2004年第1期17-19,27,共4页
Journal of Zhejiang University of Science and Technology
