Research on motor's concentrated-i ntelligent protection and control apparatus
Xia Tian-wei · 2001
In this paper,the basic principle of intelligent protector for single mo tor is presented first,the curve of rising temperature and then the curv e of protection performance are obta ined by building and solving the math model of rising temperature of two states:long -termrunning and repeate d short -termrunning .These provide the theory foundation for the apparatus.The principles of multi -motor's concentrated protection including th e selec-tion of communication means ,the theory and protocol of multi -motor comm unication,the design principle of hardware and software are discussed.Finally the overall experiments on the apparatus are carried out.