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某厂在能源普查和能量平衡中测得某风机电机的电功率为29kW,电机额定功率为40kW,于是算得该电机的负载率为β=29/40×1 00%=72.5%并认为该电机属大马拉小车,应更换为30kW。同时算得更换电机后的年节电量为W=365×24×(40-30)=87600度.节电效果惊人。果真有这么大的节电效果吗?我们认为其中有几个基本概念混淆了。
A factory in the energy census and energy balance measured in a fan motor electric power of 29kW, the motor rated power of 40kW, so calculate the motor load rate β = 29/40 × 100% = 72.5% and that the motor The big car, should be replaced by 30kW. At the same time calculate the annual saving after the replacement motor W = 365 × 24 × (40-30) = 87600 degrees. Stunning energy-saving effect. If you really have such a big power-saving effect? We think there are several basic concepts confused.