[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fttCkbVVutYv0sgnOPhfLtF0yhWuOTmLqLx_Xoja6nfM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":17,"related":18,"source":26,"type":42},[],"2023-05-11 03:37:12",921502637,[8,9,10],"对于计算电抗大于3.5的电源可以视为无限大功率电源,其任意时刻的短路电流周期分量有效值,就是短路瞬间短路电流周期分量的起始有效值","实际工程上不存在计算电抗大于3.5的情况","由于计算电抗大于3.5的电源,其向短路点提供的短路电流很小,实际计算时可以忽略",{"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},"1000006806","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F73f05aff962e932215b60f01e3cafa97.jpg","电力系统分析","43473705","电力系统分析教程考试","短路电流运算曲线编制时,计算电抗仅编制到3.5,其原因是",[19,28,33,43,48,53,62,67,76,85],{"answer":20,"createTime":5,"id":21,"options":22,"question":25,"source":26,"type":27},[],921502584,[23,24],"对","错","潮流功率方程表征电压与功率的变化量之间的微分方程.( )","v2",3,{"answer":29,"createTime":5,"id":30,"options":31,"question":32,"source":26,"type":27},[],921502595,[23,24],"只要三相电流不对称,电流中就一定包含有零序分量",{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":26,"type":42},[],921502603,[37,38,39,40],"主要改变无功功率分布","主要改变有功功率分布","改变有功功率分布和无功功率分布","功率分布不变","在多电压等级电磁环网中,改变变压器的变比",0,{"answer":44,"createTime":5,"id":45,"options":46,"question":47,"source":26,"type":27},[],921502604,[23,24],"换位就是改变架空线路的几何均距",{"answer":49,"createTime":5,"id":50,"options":51,"question":52,"source":26,"type":27},[],921502609,[23,24],"电力系统中性点的运行方式对正序和负序等值电路没有影响",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":26,"type":42},[],921502613,[57,58,59,60],"提高输电能力","增加线路电抗","减少线路导纳","提高电晕临界电压","使用分裂导线的主要目的是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":26,"type":27},[],921502618,[23,24],"电阻对应线路的热效应,而电抗对应线路的磁场效应",{"answer":68,"createTime":5,"id":69,"options":70,"question":75,"source":26,"type":42},[],921502631,[71,72,73,74],"防止输电线路重载时末端电压降低","防止输电线路轻载时末端电压升高","防止输电线路轻载时末端电压降低","防止输电线路重载时末端电压升高","500kV超高压输电线路两端装设并联电抗器的目的是( )",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":26,"type":42},[],921502636,[80,81,82,83],"减少等值电路节点数","提高计算精度","便于计算变压器参数","不需归算参数","双绕组变压器采用Γ型等值电路的目的是( )",{"answer":86,"createTime":5,"id":6,"options":87,"question":17,"source":26,"type":42},[],[8,9,10]]