The most common method of detecting insulator faults to date requires trained personnel to manually inspect a large number of insulators in a variety of locations and positions. This is a relatively simple task if there’s a road next to the HV grid. When the terrain isn’t so easily accessible, the difficulty of detection increases exponentially. This is where IOT technologies come in. A Croatian team consisting of the company Callidus Group and the Faculty of Electrical Engineering, Computer Science and Information Technology in Osijek (FERIT) is developing a LoRa-based tracking device. The device (consisting of several sensors, a control unit, and a communication unit) is still in the development phase, which means that each sensor is being tested both in a laboratory and in an active distribution network. The device is expected to have a lifespan of about ten years when attached to the insulation. Under the given conditions, LoRa has shown its full potential with its low energy consumption and long range. Theoretically, Lora communication could reach a range of 10 km. Using LoRa devices instead of manual and optical methods is a resource and time-saving method.
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