Research On The Current Relay For Rapid Action And Communication

The correct action of relay is very important to protect the system of electric power. The function of prompt cut in limit time needs three types of relays by tradition. The relays are current relay, time relay and signal relay. We use the technology of Microelectronics and Single Chip Microcomputer to develop an AC relay. The relay is recommended in this paper which can finish the above function by itself. What's more, its parameters of action can be set and change with our requirement. By using the normal serial interface RS-232C, we make the relay realize communication with PC computer. The relay is up to the mark after undergoing the test. The relay has high performance and perfect function. It is accordance with the request of electric power.The principle of the design and the theory of correlation is discussed chiefly. Designs of the hardware and the software is elaborated in the paper.