双速风机主回路简析

Brief Analysis of Main Circuit of Double Speed Fan

介绍了民用建筑内常用双速风机电机型号及适用的主回路型式,简析了双速风机电机变极调速原理,分析了双速风机主回路电流、元器件及配出线缆选择,阐述了双速风机主回路在设计选型时注意事项,指出了国标图集中双速风机主回路的不足之处。

The common type of dual-speed fan motor and its applicable main circuit type were introduced in civil buildings,and the principle of variable pole speed regulation of dual-speed fan motor briefly was analysed.The selections of main circuit current,components and distribution cables were analyzed.The matters needing attention were elaborated in the design and selection of main circuit of dual-speed fan.The shortcomings of main circuit of dual-speed fan were pointed put in the national standard.