Design of Feeder Terminal Unit for Distribution Network Based on Wireless Network

A wireless feeder terminal unit(FTU) for distribution network was developed,according to the characteristics and technical requirements of feeder automation systems.ARM7 processor LPC2138,RF chip CC1101 and power measuring chip ATT7022A were used in the design.The traditional problems such as low reliability,high cost and installation inconvenience were solved.The architecture and implementations of each module were discussed.The terminal realized functions of data collection,processing,storage,wireless communication and switch control.The results showed that the device had high data acquisition speed,high precision,and high reliability of wireless communication.