Vibration Monitoring for Electrical Equipment Faults Detection Using Fast Fourier Transform

摘要

This paper describes vibration diagnosis based on electric faults. These faults could appear in electrical equipment in general, but this paper focuses on the case of transformer, induction and dc motor. In order to do the diagnosis there are analysed vibration signals from the piezoelectric accelerometer. This accelerometer is installed on the frame of the equipment. The signals acquired are applied the Fast Fourier Transform. The level of the fault frequencies in the vibration spectrum is higher than the level of other frequencies.