E lectric arc furnaces (EAF) are the worst offending loads from the point of view of polluting the power systems. Their bad effects include, among other things, voltage flicker. The other bad effects are generation of all harmonics including even, odd and inter harmonics. Also reactive power fluctuates wildly causing system bus voltages also to fluctuate. Efforts to increase power quality in the power supply systems of steel plant and other heavy power consuming industries only result in additional investment costs for the industry.This Final assignment about 0A0603 grade steel products which are low carbon steel and intended for construction steel products from the PT. Krakatau Steel. This analysis will study the grade is due at the time of the production process, the energy required in the EAF uses electricity is huge. This is because this product is made from 100% scrap, which is where the normally supposed ideal feedstock ore pellets was 70% and 30% Scrap.An arc furnace is challenging to control from the power engineers\' point of view. Reasons for this are explained in the following an arc furnace converts electrical energy to heat energy in the form of an electric arc and the scrap is molten which is charged into the furnace. The arc is established between electrodes and the molten steel which is of a low voltage and high current. The normal operation of an arc furnace can be divided into melting and 1 refining stages. In the melting stage the electrodes are lowered by means of an automatic control system to maintain a stable arc making arc furnace draw as much active power as possible from the power system.