A “sound” image leaves no room for hidden dangers in the power grid!—The application of acoustic imaging technology in partial discharge scenarios in power systems.
Release time:
2025-09-05
Partial discharge is a slow process that damages insulating equipment, leading to localized deterioration of the dielectric material. Although the energy and spatial extent of such discharges are limited, over time and under certain conditions, they can reduce the electrical strength of the insulation system, ultimately resulting in insulation failure and potentially causing power supply safety incidents.
01. Why is “listening to electricity” more accurate than “watching electricity”?
1️⃣ Partial discharge = a “precancerous lesion” of equipment, invisible to the naked eye and easily missed by infrared thermography.
2️⃣ Traditional UV imaging suffers from signal overwhelm under bright daylight conditions; manual tower climbing involves high risks and prolonged power outages.
3️⃣ The imaging device directly “listens” to ultrasonic waves, covering the full frequency range from 1 kHz to 100 kHz, with imaging completed in just 0.1 seconds and an error margin of less than 1 cm—no power outage required, and unaffected by day or night.
02. On-site measurement: 3 minutes, one power tower
1️⃣ Drone takeoff → Suspended Daoyitai R3 audiovisual camera pod
2️⃣ Hovering at 30 meters → A red acoustic spot appears on the screen in real time.
3️⃣ Live-line work throughout the entire process → Zero power loss!
03. Acoustic Imaging vs. Traditional Inspection
04. Main Functions
1️⃣ Non-contact detection → Ensures the safety of testing personnel.
2️⃣ High efficiency and accuracy → Highly sensitive sensors and advanced signal-processing algorithms ensure the precision of detection results.
3️⃣ Intuitive and easy to understand—operations and maintenance personnel can easily grasp the detection results and quickly make informed decisions.
4️⃣ Data Saving and Analysis → Supports saving detection data and images as files for convenient subsequent analysis.
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