三相马达保护。
Three Phase Induction Motor, Standard Type.
标准型三相感应电动机“，”
L297 is a type of dedicated chip applied in control of two phase stepping motor.
L 297是一种适用于两相步进电机控制的专用芯片。
The open-phase protection in long-distance motor operation is very important in practice.
电动机远距离运行断相保护在实际工作中很重要。
The electric motor should not overload, three -phase current should be balance.
电动机的负载电流不得超过额定值，三相电流平衡。
步进电机；
步进电机；
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