Simulation study on harmonic effect of electric arc furnaces

A method on how to determine whether an electric arc furnace load is allowed to be connected into the power system at a certain service entry is provided in this paper. The basic steps of simulation study on this subject is summarized and proved to be operable. Several types of electric arc furnaces are simulated in the software called PSCAD, whose harmonic levels are approximately equal to the measured values. Bishan line connected with the Bibo substation at Duyun, Guizhou Province, is selected as an example to study the harmonic effect to the common connection point of different types of electric arc furnaces those maybe connected into the given service entry. (6 pages)