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夜雨無(wú)聲
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樓主  發(fā)表于: 2014-10-28 14:54
各位，一水泵電機工頻運行，改成變頻器控制，50HZ是否節能，若改成47hz,電機耗能如何估算，改成40HZ如何估算，由于沒(méi)有現在還沒(méi)有改成變頻控制，所以肯定無(wú)法從面板上直接讀出電機電壓電流來(lái)算功率的。。。
拉驢漢
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1樓  發(fā)表于: 2014-10-30 20:37
買(mǎi)專(zhuān)門(mén)風(fēng)機水泵類(lèi)負載用變頻器。節能不節能是對手動(dòng)調節閥門(mén)開(kāi)度比較而言的。當手動(dòng)調節時(shí)，例如需小流量，但水泵轉速沒(méi)變，所以有能量浪費了。

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