目前我国机车上仍广泛地采用具有强迫通风的牵引电机，其连续定额功率在很大程度上依赖于通风冷却的效果。
At present, China is still widely used locomotive with forced ventilation of the traction motor, the continuous power rating to a large extent dependent on the ventilation and cooling effect.
介绍了一种适用于大功率牵引电机控制的矢量控制方法。
A vector control system applicable for high-power pulling motor was presented.
风力发电机、高速电力机车用牵引电机等，为达到大功率、小体积的使用效果，广泛使用高导电性和高强度的铜合金。
Copper alloy with high conductivity and high strength is widely used for wind mill generator and pulling motor used for electric express locomotive to reach to high power and small in size.
论述MG250/591-WD电牵引采煤机截割电机恒功率控制系统，确保截割电机始终工作在额定功率附近。
The exposition about MG250/591-WD electric haulage shearer cutting motor constant-power control system guarantees the cutting motor to operate throughout nearby the rated power.
论述MG250/591-WD电牵引采煤机截割电机恒功率控制系统，确保截割电机始终工作在额定功率附近。
The exposition about MG250/591-WD electric haulage shearer cutting motor constant-power control system guarantees the cutting motor to operate throughout nearby the rated power.
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