POWER LINE FAULT LOCALISATION METHOD Russian patent published in 2015 - IPC G01R31/08 

FIELD: electricity.

SUBSTANCE: electromagnetic waves occurring in the place of fault and propagating towards the line ends are identified. At the moments of arrival of the wave fronts to the line ends the difference of times of arrival of fronts of electromagnetic waves to the line ends are measured and registered. Before the fault localisation the faults are simulated in view of features of the high voltage line and the subsequent registration of time of arrival of electromagnetic waves to the line ends. By results of simulation the adjusting factors are determined. The fault is localised by summation of half of the line length, half of product of the difference of time of arrival of waves with the speed of propagation of electromagnetic waves, and also the adjusting factor.

EFFECT: higher accuracy.

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