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电动机作为各种设备的动力,被广泛应用于工业、商业、国防和公用设施等各个领域。目前电动机的用电量平均占世界各国的总用电量的50%以上,占工业用电量的70%以上。研究表明,通过电动机节能,到2011年,累计节电可达764亿kW·h,到2020年,累计节电1653亿kW·h。因此,电动机能效水平的提高对于我国当前的节能减排工作具有重要意义。
As the power of various equipment, electric motors are widely used in various fields such as industry, commerce, national defense and public facilities. At present, the average motor power consumption accounts for more than 50% of the total electricity consumption of all countries in the world and accounts for more than 70% of the industrial electricity consumption. Research shows that by means of motor energy-saving, by 2011, the total energy-saving up to 76.4 billion kW · h, by 2020, total saving 165.3 billion kW · h. Therefore, the improvement of motor energy efficiency is of great significance to the current energy conservation and emission reduction in our country.