The Design of the collection and control terminal in the digital substation

This paper presents a design scheme of the collection and control terminal.The collection and control terminal can separate the secondary equipment from the primary equipment and is the equipment in the Process level.It can make electromagnetic transformer and switcher digital control.The paper describes the basis for software and hardware of the collection and control terminal.The design use DSP+CPLD as the kernel to develop the collection and control terminal;using modular design method,improve the reliability and flexibility.