torque machine meaning in English

大扭矩机械

Soft starters decline only the electric voltage and do not decline the frequency , and make the starting torque turn small , therefore the soft starters be applicable only to the induction motors which drive the low starting torque machine such as blower fan and pump . this paper designed a soft starter adopting the discrete frequency method to start induction motors . it declines not only the electric voltage , but also makes the frequency lower at the same time , so starting torque turns more
由于软起动器只降压不降频，电机的起动转矩较小，所以传统软起动器只适用于风机、水泵类低起动转矩的负载。本文设计并研制了一种采用分级变频方法的新型软起动控制器，在降压的同时实现有级变频，从而提高了异步电动机的起动转矩。