DTSK1789-Z/J three-phase payment control smart energy meter has the functions of active and reactive time-sharing rate electric energy metering, data processing, real-time monitoring, automatic control, and information interaction. It is mainly used in power plants, large users, distribution transformers, station transformers, and various power data measurement and measurement of various enterprises and institutions. It uses RS485, power line carrier, micro-power wireless and other scenarios for data transmission.