%0 Journal Article %A Saevarsdottir, G. A. %A Larsen, Hilde Loken %A Bakken, Jon Arne %D 1999 %I Begell House %K Electric Arc Furnace, 3-phase, AC-arcs, plasma, simulation %N 1 %P 1-15 %R 10.1615/HighTempMatProc.v3.i1.10 %T MODELLING OF INDUSTRIAL AC-ARCS %U https://www.dl.begellhouse.com/journals/57d172397126f956,0bf13fcd5064fc84,0cb888c06fb32439.html %V 3 %X An improved Channel Arc Model for simulation of AC arcs on ordinary PC's is presented. In this model the arc is treated as a cylindrical current conductor with uniform radius and a prescribed radial temperature distribution. In order to verify the model, laboratory arcs with I mrs ≈ 1000 A, as well as industrial arcs with I mrs ≈ 100 kA, are simulated and compared to measured values. Assuming symmetrical furnace conditions, the three-phase electric circuit is first simplified to a one-phase description which is compared to values from an industrial submerged arc furnace. In order to generalize the model, and to be able to simulate also asymmetrical furnace conditions, the complete three-phase circuit is included and results obtained from the three-phase simulations are compared with one-phase simulations. In addition, the effect of a charge current, which bypasses the arc, is shown in the three-phase description. %8 1999-04-20