The Study On Signal Acquisition And Transmission System Of Leakage Current Of MOA

In order to meet the need of monitoring the gapless Metal Oxide Surge Arrester (MOA), the system of acquisition and transmitting data of leakage current is designed and a new way bases on the technology of wireless data transmission with short distance of nRF905 radio frequency communication ,GPRS data transmission with long distance and the internet data transmission is offered. The monitoring system includes the foreside data acquisition unit, nRF905 wireless data transmission unit, GPRS data transmission with 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. The modular design for the spread access of other electrical equipment monitoring systems has a promoting effect on monitoring technology on line.