| 1. | Abstract : the system composed of intelligent control modules for three - phase induction motors is introduced in this paper . this module can conduct starting , reverse braking , and reverse conrtol with current limiting resistance . besides , it can also detect low voltage , overload , and open circuit of 1 or 2 phases , and do protection according to the detection . it especially fits to the controlling of motors which often do starting , braking and reversing 文摘:介绍了一种智能三相电机控制模块组成的系统,能在串电阻(电抗)起动、反接制动和换向控制的基础上进行欠压检测、过载检测、断相检测及电机故障保护.尤其适用于起动、制动和换向控制频繁的电机控制场合 |