Abstract: The monitoring platform for motor fault diagnosis is established, and then the characteristics of electrical signals of different motor faults are analyzed. Two motors in plants of Yichang and Jinghong were used for comparative tests. The former motor in Yichang showed the frequency peaks of -36.08dB at 49.2Hz and of -37.23dB at 50.8Hz, showing that the motor has a broken rotor bar fault; the latter motor in Jinghong has a rotor signature when the frequency peak appears of -58.47dB at 113.51Hz, showing that the motor has a static eccentricity fault. With the rotor pulling out at the time, the evaluation results of the motor status given by the motor fault diagnosis platform is verified, and confirms the accuracy of the motor fault diagnosis technology based on the analysis of electrical signal analysis.
