Research on Microcomputer Protection and Diagnosis Device of Asynchronous Motor Based on DSP

Based on the analysis of fault characteristics and protection prineiple of asynchronous motor,a microprocessor-based protection and fault diagnosis device of asynchronous motor is introduced.By using DSP data-processing capacity,protection and fault diagnosis aecuracy are greatly improved.The device is an integrated protection devices of asynchronous motor which has the functions of protection,fault diagnosis,measurement and eommunieation.