Application of artificial intelligence methods for determination of transients in the power system

•This paper shows how artificial neural networks can be used to determine overvoltages in power system.•The primary contribution of this paper is a novel method based on artificial neural networks for classification of overvoltages in power systems.•This approach consists of a few steps, as follows:•Modelling of power system components for transient studies in EMTP. This means developing two different models, one for switching overvoltages, and the other one for fast front overvoltages.•Creating and deploying JavaScript to automate the simulation process and parametric analysis.•Overvoltage feature extraction from generated overvoltage waveshape using harmonic analysis in MATLAB.•Overvoltage classification using neural network in MATLAB.