To reduce energy consumption, the original plant circulatingpumpmotor was changed to dual-speed motors.
为了节能降耗，将原循环水泵电机改为双速电机。
2
The ventilator for the water cooler and the circulatingpump is driven hydraulically via a hydraulic motor.
水冷却器的通风设备及循环水泵由液压发动机控制。
3
The structural features of a new type of circulating-pumpmotor with shielded stator and its test as well as its comparison with wet-winding motor are described in this paper.