远程数码控制三相固体开关

Remotely And Digitally Controlled Three-Phase Switch

研制了一种可用电话机拨码信号远距离控制的三相固体继电开关 ,通过可通、断三相 380V交流电源或三路 2 2 0V交流负载 ,可对电机负载实现启动的停止、正转和反转及过流保护等智能化功能。使用表明它有 2km的拨码遥控功能 ,开关可靠 ,可用于中小型变电站、库房、家庭、工企部门的供用电管理控制。

A new three phase switch (solid relay) which can be remotely controlled by dialing is developed. The bi directional thyristor and three phase 380V AC power source are adopted as the main components. The intelligence functions of motor start and cease, forward and reverse rotation and overcurrent protection are realized. The valid dialing control distance is confirmed within two kilometers. It is suitable to be applied to the middle or small scale substations, the warehouses and the residences.