The Efficient Power Supply Scheme of Alternating Current Electric Arc Furnaces

Alternating current electric arc furnaces negatively influence the electrical grid that often causes power quality decrease. The traditionally applied measures and methods aim to at reduce or eliminate the consequences of such influence. This study proposed a schematic solution that targets the source of the influence and reduces the extent of negative factor generation. The proposed solution decreases the negative electromagnetic effect on a power supply grid and improves the furnace performance, through: increasing the furnace efficiency, reducing the voltage fluctuations in the electrical grid by 4 times, equalizing phase loads, simplifying the power control of the furnace decreasing the power losses in the electrical grid, reducing the dynamic efforts for electrical equipment.