Acoustic imaging, especially through specialized devices like the AI865 which can be mounted on a drone, is used for detecting partial electrical discharges (PD). This process is crucial for the maintenance and monitoring of high-voltage equipment, as PD is a key indicator of insulation deterioration that can lead to equipment failures.
These devices utilize their ability to detect and localize sounds in the ultrasonic frequency range. PDs produce sounds in this range, which are often inaudible to the human ear, especially in noisy environments. With an acoustic imaging device, users can scan an area and visually see the location of ultrasonic sounds generated by PD on a digital image of the inspected components:
– High-voltage lines
– High-voltage coils