The third generation XPR1-3000, produced by XiPu Electrical CO. , LTD, is a kind of intelligence, full digit start-up equipment, which is designed for the alternating current asynchronous motor. The users can program the starting devices. It has small volume, advanced technique and very good reliability and full protective functions. It fit for the asynchronous motor control of all kinds of loading, can make motor smoothly and gradually start or stop in any cases, so that it can reduce the impact to the mechanical driving equipment, Adopting the current limit mode to  eliminate the torque wave and reduce the start-up current.