In the past, the main disadvantage of asynchronous induction motors was the difficulty of varying their speed.
过去，异步感应电动机的主要缺陷是难于变速。
In the past the main problem with asynchronous induction motors was the difficulty of varying their speed.
在过去，非同步感应发动机的主要缺陷是很难改变转子的速度。
The three-phase asynchronous induction motor models in EMTDC are deduced and the solution algorithms of induction motor transient process are introduced.
推导了电力系统电磁暂态仿真软件EMTDC中的三相异步电动机模型，介绍了电动机暂态过程的求解算法。
YLT series three phase asynchronous induction motors are specially designed for the cooling tower, which is with low noise, also are suitable for the low noise air blower.
YLT系列三相异步电动机是我公司专为冷却塔设计的低噪声三相异步电动机，也可适用于低噪声风机上。
The voltage and torque equations of induction motor during hunting are formulated at first, then the asynchronous and damping torque coefficients are derived.
建立了转速小振荡时感应电动机的电压方程、电磁转矩和转矩方程，导出了异步转矩和阻尼转矩系数。
The high-quality permanent magnet synchronous motor can replace the prior synchronous motors or induction type asynchronous motors, and has a wide application prospect.
可替代现有的同步电动机或感应式异步电动机，应用前景广泛。
The high-quality permanent magnet synchronous motor can replace the prior synchronous motors or induction type asynchronous motors, and has a wide application prospect.
可替代现有的同步电动机或感应式异步电动机，应用前景广泛。
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