Cement companies are high-power-consuming companies, and their electricity costs account for about one-third of the total cost of cement. Among them, the energy consumption of electric motors accounts for more than 90% of the total load, and energy saving of electric motors is very important. At present, low-power general-purpose inverters have been widely used in domestic cement plants, and high-power and high-pressure pumps and fan loads have also begun to use high-power and high-voltage inverters. At the same time, the extensive use of frequency converters has also brought serious harmonic problems. Governance of harmonic problems is conducive to improving the safety and reliability of the power supply system and reducing the power loss of the entire power distribution system.
Recommended solution: Passive filter (PF) + anti-harmonic low-voltage intelligent power capacitor. More