[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVgRybrxUgX8UxhXO0irfYdoV1UJ-v3J--cMLV2lPsRs":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":18,"origin":110,"createTime":20},307837455,"v1","三相异步电动机变极调速的方法一般只适用于()",[8,9,10,11],"笼型异步电动机","绕线转子异步电动机","同步电动机","滑差电动机",[],[14,21,31,41,51,61,71,81,91,100],{"id":4,"source":5,"question":6,"options":15,"answer":16,"related":17,"type":18,"origin":19,"createTime":20},[8,9,10,11],[],[],0,null,"2026-01-09T13:43:41+08:00",{"id":22,"source":5,"question":23,"options":24,"answer":29,"related":30,"type":18,"origin":19,"createTime":20},307837456,"根据电动机主电路电流的大小,利用()来控制电动机的工作状态称为电流控制原则",[25,26,27,28],"时间继电器","电流继电器","速度继电器","热继电器",[],[],{"id":32,"source":5,"question":33,"options":34,"answer":39,"related":40,"type":18,"origin":19,"createTime":20},307837457,"异步电动机连续运行控制线路中,主接触器常()触头与起动按钮并联起失压保护作用",[35,36,37,38],"开主","开辅","闭主","闭辅",[],[],{"id":42,"source":5,"question":43,"options":44,"answer":49,"related":50,"type":18,"origin":19,"createTime":20},307837458,"电动机的顺序起动,采用的是()锁控制线路",[45,46,47,48],"自","互","联","闭",[],[],{"id":52,"source":5,"question":53,"options":54,"answer":59,"related":60,"type":18,"origin":19,"createTime":20},307837459,"电气原理图的()电路电流较大,常用粗()线绘制",[55,56,57,58],"控制;虚","控制;实","主;虚","主;实",[],[],{"id":62,"source":5,"question":63,"options":64,"answer":69,"related":70,"type":18,"origin":19,"createTime":20},307837460,"接触器线圈通电,其常闭触头(),常开触头()",[65,66,67,68],"闭合;断开","闭合;闭合","断开;断开","断开;闭合",[],[],{"id":72,"source":5,"question":73,"options":74,"answer":79,"related":80,"type":18,"origin":19,"createTime":20},307837461,"异步电动机的反接制动是指改变()",[75,76,77,78],"电源电压","电源电流","电源相序","电源频率",[],[],{"id":82,"source":5,"question":83,"options":84,"answer":89,"related":90,"type":18,"origin":19,"createTime":20},307837462,"如需在集中控制室和机旁两处起停电动机,则应将两处的起动机按钮(),两处的停止按钮",[85,86,87,88],"串联\u002F串联","并联\u002F并联","串联\u002F并联","并联\u002F串联",[],[],{"id":92,"source":5,"question":93,"options":94,"answer":98,"related":99,"type":18,"origin":19,"createTime":20},307837463,"中小容量异步电动机的过载保护一般采用()",[95,96,28,97],"熔断器","磁力启动器","电压继电器",[],[],{"id":101,"source":5,"question":102,"options":103,"answer":108,"related":109,"type":18,"origin":19,"createTime":20},307837464,"锚机刹车线圈的放电回路串入二极管是为了使刹车()",[104,105,106,107],"减少损耗","减小吸力","及时抱闸","延长寿命",[],[],{"courseName":111,"courseImg":112,"workName":113,"workId":113,"count":18,"courseId":114},"默认课程","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","","53e1d2ef4961cca8eea3e23969ad2cb9"]