660v电机额定电流一览表
6 6 0V wei zhi liu dian yuan shi , fu zai 2 2 k W de dian liu wei I = P / U = 2 2 000/ 6 6 0= 3 3 A er 、6 6 0V wei jiao liu dian yuan shi , gan xing fu zai yu zu xing fu zai de dian liu ji suan fang shi bu tong , qi dian liu zhi 6 6 0V dian yuan dian ya , ying gai shi san xiang dian yuan gong dian 。san xiang dian dong ji de e ding dian liu ji suan gong shi wei : Ⅰ = P ÷ ( 1 " 660V为直流电源时，负载22kW的电流为I=P/U=22000/660=33A二、660V为交流电源时，感性负载与阻性负载的电流计算方式不同，其电流值660V电源电压，应该是三相电源供电。三相电动机的额定电流计算公式为：Ⅰ=P÷(1
dian ji gong lv yu dian liu dui zhao biao ：dian ji gong lv dan wei （K W ）gong dian dian ya dan wei （V ）e ding dian liu dan wei （A ）0. 7 5 3 8 02 1 . 5 3 8 03 . 6 2 . 2 3 8 05 3 . 03 8 06 . 6 4 . 03 8 08 . 5 5 . 5 3 8 01 1 . 5 " 本款适用于3~10kV、1140V 和660V 电动机，以及是为了控配电系统各点的电压，对电动机本身亦未给电动机额定起动电流倍数； Srm: 电动机额定容量，其值
dian ya 6 6 0V e ding gong lv 1 6 0K W de dian ji e ding dian liu ：I = P / 1 . 7 3 2 / U / c o s φ = 1 6 0/ 1 . 7 3 2 / 0. 6 6 / 0. 7 8 ≈ 1 7 9 ( A ) zhi jie qi dong de dian liu shi e ding dian liu de 4 ~ 7 bei ，an 5 bei ji suan ：1 7 9 * 5 = 8 9 5 ( A ) ruan " 电机功率与电流对照表：电机功率单位（KW）供电电压单位（V）额定电流单位（A）0.75 380 2 1.5 380 3.6 2.2 380 5 3.0 380 6.6 4.0 380 8.5 5.5 380 11.5
电压660V额定功率160KW的电机额定电流：I=P/1.732/U/cosφ=160/1.732/0.66/0.78≈179(A)直接启动的电流是额定电流的4~7倍，按5倍计算：179*5=895(A)软ben kuan shi yong yu 3 ~ 1 0k V 、1 1 4 0V he 6 6 0V dian dong ji , yi ji " shi wei le kong zhi pei dian xi tong ge dian de dian ya , dui dian dong ji ben shen yi wei gei " dian dong ji e ding qi dong dian liu bei shu ; S r m : dian dong ji e ding rong liang , qi zhi "
6 6 0V xi tong dian ji e ding dian liu ji qi dong dian liu xu hao dian ji gong lv ( K W ) e ding dian liu ( A ) qi dong dian liu ( A ) xu hao dian ji gong lv ( K W ) e ding dian liu ( A ) qi dong dian liu ( A ) 1 0. 5 5 0. 9 2 5 . 9 8 2 1 1 8 5 2 0. 7 5 1 . 2 7 . 8 2 2 2 2 02 2 2 1 6 6 5 3 1 . 1 1 . 1 7 . 7 2 3 4 3 6 4 02 4 5 4 2 5 6 5 . 5 6 . 8 2 5 1 . 1 5 2 6 " 660V 系统电机额定电流及起动电流序号电机功率( KW)额定电流(A)起动电流(A)序号电机功率( KW)额定电流(A)起动电流(A)10.550.925.982118520.751.27.822220222166531.11.17.7234364024542565.56.8251.1526