paakay:
I am working on a project called Arduino based underground cable fault detection system. The system detects a voltage drop when the circuit is short-circuited on each phase and displays the exact location of the fault in kilometres else it should display no fault.
These sound like power cables, in which case when they are 'shorted' in a fault, there is likley to be some fusing, maybe a bang, and the remainder may well be a partial and not zero resistance fault.
In which case I cannot see how you can come up with an 'exact' location based in voltage or resistance measurments.
Is this a real project ?