摘要
通过将直流电机的有级调速与交流电机的变频调速主要性能相比较,阐述了变频调速及交流电机在防爆施工环境中使用的优越性。
Comparing the step- speed regulation of the DC motor to speed control by frequency variation of AC motor, the precedence of speed control by fiequency variation is present dearly in this paper, including AC used in Ex construction fidd.
出处
《电气防爆》
2006年第1期13-14,共2页
Electric Explosion Protection
关键词
防爆结构
有级调速
变频调速
Ex structure
step speed regulation
speed control by frequency variation
