Load types: Various types of AC-DC-AC, AC-AC frequency conversion rolling mills, various types of roll loads, electric arc furnaces, converters, intermediate frequency furnaces, submerged arc furnaces, pressure welding machines, molten steel transport vehicles and other equipment are widely used in the iron and steel metallurgical industry. Active and reactive power fluctuates greatly, which can easily lead to voltage fluctuations and flicker, low power factor, and three-phase imbalance, which will inject a large amount of harmonic current into the grid, causing harmonic pollution.
Recommended solution: fast anti-harmonic low-voltage intelligent power capacitor, add active filter (APF)/static reactive power generator (SVG) if necessary. More