In this project, a methodology (sectionalizing) for an efficient, non-destructive digital underground cable fault detector was developed. The device can detect underground cable faults such as short circuit and open circuit and indicates a correct cable when the cable is normal.
The digital cable fault locator is a precision instrument and easy to use. For sensing the data, the instrument is provided with two terminals which are to be connected to the cable under test. The built-in microcontroller with the locator circuit and analogue to digital converter circuit collects analyses the data and spontaneously display the result (the particular type of fault on the line) in digital format on the seven segment LED display unit within 10m range. The digital underground cable fault locator developed could perform as expected on the field and available fault scenarios. Its main limitation is the fact that the measurements and monitoring must be conducted at regular uninterrupted intervals of 10m following the underground mapping of the trouble spot
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