• The shortcomings existing in electrical control system in preliminary mine hoist are analyzed, and the application and effectiveness of PC in hoisting shaft are summarized.

    分析了原矿井提升机电系统存在缺陷阐述可编程序控制器(PC矿用提升中的应用效果

    youdao

  • China's mines are hoist AC Induction Motor Drive, and its electrical control system uses a rotor series, cutting speed resistance , by the relay - contactor control devices constitute a logical.

    我国矿井提升绞车大多是采用交流异步电机拖动电气控制系统采用转子电阻调速继电器-接触器构成逻辑控制装置

    youdao

  • China's mines are hoist AC Induction Motor Drive, and its electrical control system uses a rotor series, cutting speed resistance , by the relay - contactor control devices constitute a logical.

    我国矿井提升绞车大多是采用交流异步电机拖动电气控制系统采用转子电阻调速继电器-接触器构成逻辑控制装置

    youdao

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