4、智能激磁;无触点控制技术;智能保护2013毕业设计论文2013毕业设计论文AbstractACcontactorplayedanirreplaceableroleinthefieldoflow-voltagedistributionandautomationcontrol.Soconsistency of performance oftheACcontactorhasgreateconomicsignificance.Butfurtherdevelopmenthassofarbeenconstrained