Study Of MOA On-line Monitoring System Based On Wireless Transmission System

During Metal Oxide Arrester(MOA) actural operation,interior aging and damping may cause resistive current to increase,Zno element temperature will rise,MOA may turn to thermal runaway and even explosion when ovevroltage appears.In order to ensure MOA run normally,it is necessary to detect the MOA operation state on-line.In this paper,the monitoring system consists of on-spot collection module,GPRS transparent transmission module , long-distance monitoring center. The design of hardware and software of AT89C52 micorporeessor according to the data collection and proeessing module was intordueed.GPRS transparent transmission module transmits message in a long distance, application of ADSL data transmission and the monitoring system of monitoring central with long distance. It is an integration of data collection, communication, analysis, calculation and memory with the function of real-time supervisory, waveform display, historical data inquire. Practical application shows the correctness of system design.