Energy saving calculation formula

Time:2022-03-07   Number:265 Back to list >>

Comparison of energy saving calculation between permanent magnet frequency conversion and ordinary air compressor (power frequency)

序号

对比点

永磁变频

工频

结果

总计节省

1

空载耗电

满载功率的45%

永磁节省:空载率*45%,如按平均空载30%计算,则节省30%*45%=13.5%

永磁机比

工频机

平均节省32%

备注:即使当客户满载的情况下,平均也能节省18%

2

过余压力耗电

平均为1kg/cm2,耗电7%

永磁节省:7%

3

电机效率

94-97%

87-90%

永磁节省:7%

4

一体轴效率

100%

皮带:94%;联轴器:97%

永磁节省:6%(皮带);3%(联轴器)

5

其他优点

恒压输出

压力有波动

永磁恒压输出对生产品质有保障

1.节能公式计算模式:耗电量(KW)=电压*电流*1.732*电机功率因素(电机铭牌上有,一般在0.9左右)/1000

1.Calculation mode of energy saving formula: Power consumption (KW) = voltage * current *1.732* Motor power factor (shown on the motor nameplate, generally around 0.9)/1000


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