Application
Joining meters are suitable for measuring active energy in single phase for direct currents upto 100 A; in three phase (three wire or four wire at balanced or unbalanced) networks, for directly connected loads upto 100A; and for operation through CT or CT & PTs.

Specification
DDSY223 series 1 phase electronic type prepayment watt-hour meter is a kind of new-style meter which is developed by our company and adopt micro-electronics techniques. It is used for measuring rated frequency 50Hz or 60Hz three phase AC active energy electric power consumption and realize using electric power after prepaying and realize user load control function. It is a kind of idea product for reforming using electricity system and realizing electric energy commoditization and effectively control and adjust electricity net load. Its technique performance are completely conformed to National Standard GB/T17215-1998 and Department Standard JB/T8382-96.