Early; diagnosis of stator inter-turn fault in inverter driven induction motor by wavelet transform

This paper deals with a wavelet transform based new scheme for the diagnosis of stator inter-turn fault in the inverter driven induction motor drives. The approximation and detailed signals of wavelet transform have been used for detection of stator fault with a proposed simulation model. In the simulation model; the stator inter-turn fault has been created and diagnosed by the time domain and time-frequency domain approaches in the transient condition. Therefore; early fault diagnosis of the motor is possible and averted the motor before reaching in the ruinous conditions. As a result; the industries may save large revenues and unexpected failure conditions. The obtained results clearly demonstrate that the developed diagnostic technique may reliably separate stator faulty conditions from the healthy condition.