机电工程中，由于某些电器功率设置不合理，导致功率因数、机械效率偏低，致使其他电器不得不选用大功率电器，使全系统呈现“大马拉小车”现象，并很难改正；这也导致设备高效运行检修的造价复杂化，其中选型成为关键；因此，提出了若干补救措施。%In power-driven engineering, thanks to some not conform truth that electrical equipment effect be set up. Lead to power factor and machine efficiency over do low. Lead to other electrical equipment have to choose over to big effect. And cause all system present“big horse pull a small cart terrain”, and very to correct, lead to the equipment high efficiency wrok , and overhaul to complicated , select mould become high, the pasper rises the remedy step.
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