The fan load and operation characteristics of various speed regulation technique method for fan is put forward.
本文分析了风机负荷与不同调速方式的运行特性，并提出合理的风机调速方式。
The auxiliary inverter of electric locomotive is used to provide power for the fan load which cools down the main circuit and offer wind regime for the air brake system.
电力机车的辅助逆变器主要为机车主电路冷却风机和空气制动风机提供电能。
Due to the strong axial and radial load to the bearing of electromotor in counter-rotating axial fan, it is always occurred that the bearing was damaged in use.
由于对旋轴流式风机电动机轴承要承受较大的轴向负荷和径向负荷，实际使用过程中常发生电动机轴承损坏的现象。
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