Power source circuit and its control for three-phase electric arc furnace to reduce flicker

摘要

An electronic-controlled furnace transformer, which enables the reactive power, consumed by the furnace to be kept constant, thus reducing flicker. This is achieved by associating with a conventional power system of the electric arc furnace with current controllers and a booster transformer. By regulating the (reactive) power input with the help of the new control method, any disturbances in the power system can be reduced to a minimum.