Discussion of Teaching Method on Relay-contactor Control System

Relay-contactor control system is a difficulty of electrical engineering course.By examples,this paper introduces some teaching methods.Based on gaining a mastery of circuit theory,the teacher can enlighten students to designing control circuit by themselves.Two design methods of relay-contactor control system are summing up,and some teaching details are presented.The practice shows that teaching methods can bring up good effect and enhance student's abilities of analyzing problems and solving problems.