电机能效等级选择的探讨
The Selection Analysis of Energy Efficiency Grades for Motors
于胜栓
作者单位：中国昆仑工程公司
中文关键字：电机；能效等级；节能；效率；回报期
英文关键字：motor ; energy efficiency grades ; energy conservation ; efficiency ; period of investment return
中文摘要：探讨了电机能效等级规定、提高效率措施及国家政策要求，通过实例对1级、2级和3级电机进行经济性对比分析得出，采用2级能效的电机回报期在1~1.5年，采用1级能效的电机回报期在1.5~2.5年，并对实际选用提出了建议。
英文摘要：The energy efficiency grades, measures of increase efficiency and national policy requirements for motors were explored. The comparison of cost between the first grade, the second grade and the third grade was processed.The analysis showed that the period of investment return about the second grade was 1 year to 1.5 year than the third grade and 1.5 year to 2.5 year for the first grade. Some Suggestions of motor selection were given.