It provides a method for the untouched switch Control for three - phase alternating current motor.
为大功率三相交流电机的无触点控制提供一种方法。
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。
Satellite attitude control flywheel is driven by three-phase alternate commutating brushless DC motor, schema of which is torque control model (current feedback).
卫星姿控飞轮是由三相轮流换向无刷直流电动机驱动的，采用力矩控制(电流反馈)模式。
Further study of Circuit exchange regulator presents, takes the starting current as feedback signal to complete closed-loop control of soft start control of the three-phase induction motor.
对交流调压电路进行了进一步的研究，利用起动电流信号作为反馈量，对三相感应电动机软起动控制系统进行闭环控制。
In the three-phase inverter-fed motor drives, the switching devices'PWM waves generate shaft voltage and bearing current, and these make the motor's life shorter.
在三相逆变器驱动电机系统中，开关器件的PWM波导致了轴电压和轴承电流的产生，使电机受到危害，降低了电机的使用寿命。
This paper states a detecting method for defect of three-phase current motor and it also introduces the experimental analysis result and practice utilization condition of this detecting method.
本文阐述了对三相交流电动机故障的一种检测方法，并介绍了该检测方法的实验分析及现场应用情况。
The motor protection for three-phase models must be installed by the customer. Equipment compliant with current standards should be used.
三相电机不带热保护装置，建议用户自行安装。
The motor protection for three-phase models must be installed by the customer. Equipment compliant with current standards should be used.
三相电机不带热保护装置，建议用户自行安装。
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