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State Grid XXX Power Supply Company
During daily inspections, users found partial discharge problems in two clamp positions on the line using acoustic imaging equipment. The fault location is about 100 meters from the ground, and the signal attenuation is large,
The user installed an acoustic imaging online monitoring system in the high and low voltage distribution room, and found obvious positioning points in the 10kV switchgear busbar room using the acoustic imaging online monitoring device.
Simultaneous positioning of multi-point partial discharge
Users are using drones equipped with acoustic imaging modules to conduct daily inspections on 10kV overhead lines, and there are partial discharge issues at the positions of 10kV overhead line porcelain bottles and clamps.
In daily inspections, an infrared acoustic two in one imaging instrument was used to detect abnormal sound source points at the porcelain bottle next to the C-phase drop type fuse above the 10kV transformer, and obvious discharge signals were detected on site.
In daily inspections, using an infrared acoustic two in one imaging instrument, it was found that there was significant heating in the A-phase clamp above the 10kV transformer, and a clear infrared pyrogen signal was detected on site.
During daily inspections, an acoustic imager was used to detect discharge at the top of the C-phase porcelain bottle tied to the top of the 10kV XXX special transformer drop type fuse, and obvious discharge signals were detected on site.
