摘要
金属氧化物避雷器(MOA)是防止供电系统和用电设备免受雷电危害的主要设施,一旦出现故障,不但失去应有的防雷作用,且可能带来供电事故。因而为确保MOA正常发挥作用,需要在线监测MOA的运行状态。以MOA阀片温度作为故障特征量,设计了基于DS18B20和AT89S52单片机的实时温度监测系统。研究表明,该系统结构合理,方法正确,可满足应用需求,大幅度减少了MOA维护成本。
Metal oxide surge arresters（MOA）are the main installations to prevent power system and electrical equipments from lightning harm.Not only loses the lightning protection function,but also bring the power supply accidents once the MOA break down.In order to ensure them running normally,it is necessary to detect the MOA＇s operation state on-line.This paper introduces the temperature measurement system based on the DS18B20 and AT89S52,the MOA＇s slice temperature as fault feature.The research shows that the MOA temperature on-line monitoring system has reasonable structure and correct methods,meets the application requirements and reduces the MOA＇s maintenance costs drastically.
出处
《电子器件》
CAS
2011年第2期206-209,共4页
Chinese Journal of Electron Devices
