Abstract
This paper presents guidelines for the accurate evaluation of harmonics and flicker generated by ac electric arc furnaces, and its propagation through transmission and distribution systems. It is presented a typical case where a HV system supplies a high capacity arc furnace. The electrical network is simulated using the ATP version of the EMTP where a non-linear time-varying three-phase arc model is implemented in MODELS. The time-domain simulations are then used to evaluate the harmonic distortion and the short-term flicker severity index (Pst). For such purpose, two programs were developed using the MATLAB programming language.
