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:介紹了一種智能三相電機(jī)控制模塊組成的系統(tǒng),能在串電阻(電抗)起動、反接制動和換向控制的基礎(chǔ)上進(jìn)行欠壓檢測、過載檢測、斷相檢測及電機(jī)故障保護(hù).尤其適用于起動、制動和換向控制頻繁的電機(jī)控制場合