Application of electrical static characteristics testing for ship electromotor prevention service and fault diagnosis
                                                                 LI Fei, GU Han, DONG Qing feng
                                  (China Satellite Maritime Tracking and Control Department, Jiangyin 214431, China)

Abstract: Aiming at the electrical faults existing in the preventive maintenance of asynchronous motors, the problem of rapid positioning can t be solved without any damage,the electrical parameters of motor were studied in this paper. This means to detect the electrical characteristics, introduced with the static balance three phase motor Penrose criterion of judgment criteria, using method of fuzzy diagnosis to judge the electrical motor fault exists, cloud be achieved on the possible existence of unbalanced three phase motor stator, and rotor winding short circuit fault diagnosis. The simulink software simulation was used to simulate the motor fault, and the method was verified by calculation, and the feasibility of the method was proved again in the physical experiment. The results indicate that this method realizes electrical fault detection of the motor without dismantling the motor case, can significantly improve the prediction quality hidden trouble.

Key words: motor; static characteristics testing; prevention service; fault diagnosis