工(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)組應(ying)用(yong)廣泛，在有工(gong)(gong)業(ye)的(de)地方(fang)就要(yao)(yao)(yao)用(yong)到冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)設備，如：化工(gong)(gong)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)鍍冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、食品冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)子加(jia)工(gong)(gong)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、模(mo)具冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、印刷冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)等(deng)，而(er)且大(da)部分行業(ye)對于(yu)工(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)要(yao)(yao)(yao)求很(hen)高的(de)，大(da)部分客戶的(de)要(yao)(yao)(yao)求都是24小(xiao)時運轉(zhuan)，所以對冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)的(de)電(dian)源電(dian)壓(ya)要(yao)(yao)(yao)求也(ye)很(hen)高，如果冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)的(de)幾相電(dian)壓(ya)不平衡太于(yu)2%時，操作時有可能損壞冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)，所以要(yao)(yao)(yao)控制好冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)(ji)。
冷水(shui)機(ji)電(dian)源電(dian)壓的(de)檢(jian)測
如果冷水機標(biao)準電(dian)(dian)壓(ya)(ya)為(wei)3相(xiang)，380V，50Hz，測得(de)UAB=376V，UAC=379V，UBC=385V。得(de)出(chu)平(ping)均電(dian)(dian)壓(ya)(ya)=(376+379+385)/3=380V：確定與平(ping)均電(dian)(dian)壓(ya)(ya)的偏(pian)(pian)差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大偏(pian)(pian)差值為(wei)5V，5/380=1.3%，得(de)出(chu)最大相(xiang)電(dian)(dian)壓(ya)(ya)不平(ping)衡為(wei)1.3%。
如果測得(de)該電源和電壓(ya)在正(zheng)常(chang)范圍內，這樣就可以正(zheng)常(chang)開機。如果冷水機電源控(kong)制不好，那(nei)么損壞的(de)話就會有很高的(de)一個維修成本，按正(zheng)常(chang)來講的(de)話電壓(ya)都會比較正(zheng)常(chang)。
冷(leng)水機(ji)(ji)的電源電壓最大可(ke)允許(xu)的相電壓不(bu)平衡為2%，相電流不(bu)平衡為10%。注：當相電壓不(bu)平衡大于2%，絕(jue)對不(bu)能開機(ji)(ji)操(cao)作。
冷(leng)(leng)(leng)水(shui)(shui)機的工作電(dian)源是3相，380V，50Hz。在運行(xing)冷(leng)(leng)(leng)水(shui)(shui)機前，需要檢查(cha)電(dian)控柜中電(dian)源部(bu)(bu)分(fen)和(he)控制(zhi)部(bu)(bu)分(fen)有無(wu)異常，并固緊接(jie)線端子，包括總電(dian)源接(jie)線銅排，自(zi)動(dong)空氣(qi)斷路器(空氣(qi)開(kai)關)，Δ-Δ或Y-Δ壓縮機啟(qi)動(dong)電(dian)氣(qi)裝(zhuang)置，PLC觸摸屏，靶流開(kai)關，冷(leng)(leng)(leng)凍水(shui)(shui)泵(beng)，冷(leng)(leng)(leng)卻水(shui)(shui)泵(beng)聯(lian)動(dong)控制(zhi)線(控制(zhi)接(jie)點(dian)(dian)為無(wu)源接(jie)點(dian)(dian))，溫度傳感器，冷(leng)(leng)(leng)凍，冷(leng)(leng)(leng)卻水(shui)(shui)泵(beng)，冷(leng)(leng)(leng)卻水(shui)(shui)塔聯(lian)動(dong)控制(zhi)線(控制(zhi)接(jie)點(dian)(dian)為無(wu)源接(jie)點(dian)(dian))，電(dian)控儀表等(deng)等(deng)節點(dian)(dian)。待(dai)確認好后，方可執(zhi)行(xing)開(kai)機操(cao)作，確保(bao)冷(leng)(leng)(leng)水(shui)(shui)機組正常運行(xing)。
冷水(shui)機(ji)組屬(shu)于大功率機(ji)器，電壓(ya)(ya)基本都是工業電壓(ya)(ya)，380V，所(suo)以在安(an)裝冷水(shui)機(ji)時最好(hao)安(an)裝穩壓(ya)(ya)器。