[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fU2NBSVKNySNnujqfvGcRv1juDzMh3iUVEYmfIfbWoJc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":28,"type":74},[],"2024-04-15 22:28:28",138549665,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},19,"1588910d667d04f6d73b85c33e4247e6","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","电机与拖动B","work_32140393","第3章--《交流异步电动机》作业","异步电机的同步转速是指异步电动内部旋转磁场的转速",[19,30,39,48,57,62,71,75,80,85],{"answer":20,"createTime":5,"id":21,"options":22,"question":27,"source":28,"type":29},[],138549659,[23,24,25,26],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5d56ed28b3db74d234f354bc922ffcb5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2e672042aebc9c7f249f14742b248c9c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ff5ea109195bb4bef4644d213cc630a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1beae478fbc1f909b95051c870a57861.png\">","异步电机的转差率是指","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":38,"source":28,"type":29},[],138549660,[34,35,36,37],"Te &gt; 0、n &gt; 0、0 &lt; s &lt; 1","Te &gt; 0、n &gt; 0、s &gt; 1","Te &lt; 0、n &gt; 0、s &gt; 1","Te &gt; 0、n &lt; 0、s &gt; 1","三相异步电动机在在电动机惯例下,如果运行在电动状态,则",{"answer":40,"createTime":5,"id":41,"options":42,"question":47,"source":28,"type":29},[],138549661,[43,44,45,46],"Te &lt; 0、n &gt; 0","Te &lt; 0、n &lt; 0","Te &gt; 0、n &gt; 0","Te &gt; 0、n &lt; 0","三相异步电动机在在电动机惯例下,如果运行在发电状态,则",{"answer":49,"createTime":5,"id":50,"options":51,"question":56,"source":28,"type":29},[],138549662,[52,53,54,55],"0.01、3","0.03、6","0.08、5","0.03、3","如果某三相异步电动机的额定转速nN=970r\u002Fmin,则该电动机的额定转差率及极对数",{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":28,"type":29},[],138549663,[23,24,25,26],"异步电机的转差是指",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":28,"type":29},[],138549664,[66,67,68,69],"可以降低定子铁心重量","为了可以方便调节定子长度","为了安装方便","为了减少涡流损耗和磁滞损耗","异步电动机定子铁心采用硅钢片叠压而成的原因是",{"answer":72,"createTime":5,"id":6,"options":73,"question":17,"source":28,"type":74},[],[8,9],3,{"answer":76,"createTime":5,"id":77,"options":78,"question":79,"source":28,"type":74},[],138549666,[8,9],"异步电机的转速是指转子旋转转速,即为转子导体旋转速度",{"answer":81,"createTime":5,"id":82,"options":83,"question":84,"source":28,"type":74},[],138549667,[8,9],"三相异步电动机的定子绕组是一个三相对称绕组,由三个完全相同的绕组组成,每个绕组为一相,三个绕组在空间互差120度电角度",{"answer":86,"createTime":5,"id":87,"options":88,"question":89,"source":28,"type":74},[],138549668,[8,9],"异步电机的转子为了足够的机械强度和刚度可以采用整块钢制作"]