工(gong)業(ye)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)組(zu)應用廣泛，在有(you)工(gong)業(ye)的地方(fang)就要用到冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)設備，如(ru)：化(hua)工(gong)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)(dian)鍍冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、食品冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)(dian)子(zi)加工(gong)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、模具冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、印刷(shua)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)等，而且大部(bu)分行業(ye)對(dui)于工(gong)業(ye)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)要求很高(gao)的，大部(bu)分客戶(hu)的要求都是24小(xiao)時運轉，所以對(dui)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)的電(dian)(dian)源電(dian)(dian)壓要求也很高(gao)，如(ru)果冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)的幾(ji)相電(dian)(dian)壓不平衡(heng)太于2%時，操作時有(you)可能損壞(huai)冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)，所以要控(kong)制(zhi)好冷(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)。
冷水機電(dian)源電(dian)壓的檢測
如果冷(leng)水機標準電(dian)壓為3相，380V，50Hz，測(ce)得(de)UAB=376V，UAC=379V，UBC=385V。得(de)出(chu)平(ping)均電(dian)壓=(376+379+385)/3=380V：確定與(yu)平(ping)均電(dian)壓的(de)偏(pian)差(cha)值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最(zui)大偏(pian)差(cha)值為5V，5/380=1.3%，得(de)出(chu)最(zui)大相電(dian)壓不平(ping)衡(heng)為1.3%。
如(ru)果測得該電(dian)源(yuan)和電(dian)壓(ya)在正常范圍內，這樣就(jiu)可以正常開機。如(ru)果冷水機電(dian)源(yuan)控制不(bu)好(hao)，那么損壞的(de)話就(jiu)會有很高的(de)一個維修成本，按正常來(lai)講(jiang)的(de)話電(dian)壓(ya)都會比(bi)較正常。
冷(leng)水機的電源電壓最大(da)可允許的相電壓不(bu)平衡(heng)為2%，相電流(liu)不(bu)平衡(heng)為10%。注：當相電壓不(bu)平衡(heng)大(da)于2%，絕對不(bu)能開機操作。
冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)的工作電(dian)(dian)源(yuan)(yuan)(yuan)是(shi)3相(xiang)，380V，50Hz。在運(yun)(yun)行冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)前，需要(yao)檢查電(dian)(dian)控(kong)(kong)柜(ju)中電(dian)(dian)源(yuan)(yuan)(yuan)部(bu)分和控(kong)(kong)制部(bu)分有無(wu)異常，并固緊接線(xian)端(duan)子，包括(kuo)總電(dian)(dian)源(yuan)(yuan)(yuan)接線(xian)銅排，自動空(kong)氣(qi)斷路器(空(kong)氣(qi)開(kai)(kai)關)，Δ-Δ或Y-Δ壓縮(suo)機(ji)啟動電(dian)(dian)氣(qi)裝置(zhi)，PLC觸摸屏(ping)，靶流開(kai)(kai)關，冷(leng)(leng)(leng)(leng)凍水(shui)(shui)泵，冷(leng)(leng)(leng)(leng)卻(que)水(shui)(shui)泵聯(lian)動控(kong)(kong)制線(xian)(控(kong)(kong)制接點(dian)為(wei)無(wu)源(yuan)(yuan)(yuan)接點(dian))，溫(wen)度傳(chuan)感器，冷(leng)(leng)(leng)(leng)凍，冷(leng)(leng)(leng)(leng)卻(que)水(shui)(shui)泵，冷(leng)(leng)(leng)(leng)卻(que)水(shui)(shui)塔聯(lian)動控(kong)(kong)制線(xian)(控(kong)(kong)制接點(dian)為(wei)無(wu)源(yuan)(yuan)(yuan)接點(dian))，電(dian)(dian)控(kong)(kong)儀表等等節點(dian)。待確認好后，方可(ke)執行開(kai)(kai)機(ji)操作，確保冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)組正常運(yun)(yun)行。
冷水(shui)機(ji)組屬于大功率機(ji)器，電(dian)壓(ya)基本都是工業電(dian)壓(ya)，380V，所以在安(an)裝(zhuang)冷水(shui)機(ji)時(shi)最好安(an)裝(zhuang)穩(wen)壓(ya)器。