Time–Frequency Analysis of Acoustic Partial Discharge Signals in a 20 kV Switchgear: A Case Study Using an Acoustic Camera
This study presents an acoustic camera-based approach for characterizing partial discharge (PD) signals in a 20 kV switchgear using time-frequency analysis. Acoustic signals were acquired using an acoustic camera and processed through audio extraction, bandpass filtering, and segmentation. Subsequently, Short-Time Four...