电动机额定电流计算公式

电机的额定电流怎么算？功率÷电压=电流？学电工可别进入误区电流估算技巧和计算公式，三线接近开关控制220伏单相电机，接线方法供大家参考，一个是通电延时，一个是断电延时，傻傻分不清楚，三相电表怎么接电流

问题描述电动机的额定电流怎么算，麻烦给回复精选答案电动机的额定电流是指在额定电压下，电动机正常运行时所消耗的电流大小。计算公式为：额定电流wen ti miao shu dian dong ji de e ding dian liu zen me suan ，ma fan gei hui fu jing xuan da an dian dong ji de e ding dian liu shi zhi zai e ding dian ya xia ，dian dong ji zheng chang yun xing shi suo xiao hao de dian liu da xiao 。ji suan gong shi wei ：e ding dian liu "

dian ji de e ding dian liu zen me suan ? gong lv ÷ dian ya = dian liu ? xue dian gong ke bie jin ru wu qu dian liu gu suan ji qiao he ji suan gong shi , san xian jie jin kai guan kong zhi 2 2 0fu dan xiang dian ji , jie xian fang fa gong da jia can kao , yi ge shi tong dian yan shi , yi ge shi duan dian yan shi , sha sha fen bu qing chu , san xiang dian biao zen me jie dian liu "

ruo ba yi shang kou jue jiao zuo tong yong kou jue ，ze ke tui dao chu ji suan 2 2 0、3 8 0、6 6 0、dian ya deng ji dian dong ji de e ding dian liu zhuan yong ji suan kou jue ，yong zhuan yong ji suan kou jue ji suan mou tai san xiang dian dong ji e ding dian liu shi ，rong liang qian wa yu dian liu an pei " 对于单相电机，计算公式为I=P/cosΦ/U/η;对于三相电机，计算公式为I=P/cosΦ/1.732/0.38/η。其中，1.732是根号3,380是三相线电压，0.75是功率因数，这个值通常取0.75。以一台10kW的三相电机为例，

dui yu dan xiang dian ji , ji suan gong shi wei I = P / c o s Φ / U / η ; dui yu san xiang dian ji , ji suan gong shi wei I = P / c o s Φ / 1 . 7 3 2 / 0. 3 8 / η 。qi zhong , 1 . 7 3 2 shi gen hao 3 , 3 8 0shi san xiang xian dian ya , 0. 7 5 shi gong lv yin shu , zhe ge zhi tong chang qu 0. 7 5 。yi yi tai 1 0k W de san xiang dian ji wei li , " 若把以上口诀叫做通用口诀，则可推导出计算220、380、660、电压等级电动机的额定电流专用计算口诀，用专用计算口诀计算某台三相电动机额定电流时，容量千瓦与电流安培