Abstract— Electric Arc Furnaces(EAF) are nonlineer and time-varying loads and grid in which they are bounded causes of some power quality problems such as harmonics, voltage flicker and inter-harmonics. Investigation of power quality problems that causes of the EAF is an important research topic. Nowadays, an advanced simulation program allows the modelling EAF loads and makes it the possible to examine the power quality problems caused by EAF. The most important issue in the modelling of EAF is the modelling of electrical arc. There are some different methods used for modelling the electrical arc in the literature. In this study, simulation model for a phase equivalent circuit of electric arc furnace(60 MVA) which is located in Sivas Iron and Steel Enterprises Inc.(SIDEMIR) has been created using Matlab/Simulink. The EAF in simulation has been modeled as nonlinear time-varying voltage controlled source and static and dynamic characteristics of EAF’s has been studied by using the different time-domain analysis methods. In addition to HIOKI 3197 Power Analyser connected to common coupling point in transmission line which is feeding to EAF and real- time measurement values are obtained. Simulation results have compared with real-time measurement which is obtained with power analyzer and adherence has assessed.