Method and apparatus for automatic localization of a fault

A method for automatic localization of a fault having occurred at power transmission lines of a power supply system, the method comprising the steps of:

• (a) preprocessing measured voltage and/or current raw time series data of the power transmission lines to provide a normalized raw data and/or feature representation of the raw time series data;
• (b) calculating an optimal evaluation time point and/or evaluation time window based on the normalized raw data and/or feature representation using a trained artificial intelligence module;
• and
• (c) evaluating by the trained artificial intelligence module the measured voltage and/or current raw time series data using the calculated optimal evaluation time point and/or evaluation time window to localize the fault.