工(gong)(gong)(gong)業(ye)冷(leng)(leng)(leng)水(shui)機(ji)機(ji)組應用廣泛，在(zai)有工(gong)(gong)(gong)業(ye)的(de)地方就要(yao)(yao)用到(dao)冷(leng)(leng)(leng)水(shui)機(ji)設備，如(ru)：化工(gong)(gong)(gong)冷(leng)(leng)(leng)水(shui)機(ji)、電(dian)鍍冷(leng)(leng)(leng)水(shui)機(ji)、食品(pin)冷(leng)(leng)(leng)水(shui)機(ji)、電(dian)子加(jia)工(gong)(gong)(gong)冷(leng)(leng)(leng)水(shui)機(ji)、模具冷(leng)(leng)(leng)水(shui)機(ji)、印(yin)刷冷(leng)(leng)(leng)水(shui)機(ji)等，而且大部分行(xing)業(ye)對(dui)于工(gong)(gong)(gong)業(ye)冷(leng)(leng)(leng)水(shui)機(ji)要(yao)(yao)求(qiu)很(hen)高的(de)，大部分客戶(hu)的(de)要(yao)(yao)求(qiu)都是24小(xiao)時運轉(zhuan)，所以對(dui)冷(leng)(leng)(leng)水(shui)機(ji)的(de)電(dian)源電(dian)壓要(yao)(yao)求(qiu)也很(hen)高，如(ru)果冷(leng)(leng)(leng)水(shui)機(ji)的(de)幾相電(dian)壓不(bu)平衡太于2%時，操作時有可能損壞冷(leng)(leng)(leng)水(shui)機(ji)，所以要(yao)(yao)控制好冷(leng)(leng)(leng)水(shui)機(ji)。
冷水機電源電壓(ya)的檢(jian)測
如(ru)果冷水機標準電壓(ya)為3相(xiang)，380V，50Hz，測得(de)UAB=376V，UAC=379V，UBC=385V。得(de)出(chu)平均電壓(ya)=(376+379+385)/3=380V：確定與平均電壓(ya)的偏差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大偏差值為5V，5/380=1.3%，得(de)出(chu)最大相(xiang)電壓(ya)不平衡為1.3%。
如(ru)(ru)果測得該電源和電壓在正常(chang)(chang)范圍內(nei)，這(zhe)樣就可以正常(chang)(chang)開機。如(ru)(ru)果冷水(shui)機電源控制不好，那么(me)損壞的話就會有很高的一個維修成本，按(an)正常(chang)(chang)來講(jiang)的話電壓都會比較正常(chang)(chang)。
冷水機(ji)的(de)電源電壓(ya)最大可允許的(de)相(xiang)(xiang)電壓(ya)不平(ping)(ping)衡為2%，相(xiang)(xiang)電流不平(ping)(ping)衡為10%。注：當相(xiang)(xiang)電壓(ya)不平(ping)(ping)衡大于2%，絕(jue)對不能開(kai)機(ji)操作。
冷(leng)水(shui)(shui)機(ji)(ji)的工作(zuo)電(dian)源(yuan)是3相(xiang)，380V，50Hz。在運(yun)行(xing)冷(leng)水(shui)(shui)機(ji)(ji)前(qian)，需要檢查電(dian)控(kong)(kong)(kong)柜中電(dian)源(yuan)部分和控(kong)(kong)(kong)制部分有(you)無(wu)異常(chang)(chang)，并固緊接線端(duan)子，包括(kuo)總電(dian)源(yuan)接線銅排，自(zi)動(dong)空(kong)氣(qi)(qi)(qi)斷路器(qi)(空(kong)氣(qi)(qi)(qi)開關(guan))，Δ-Δ或Y-Δ壓縮機(ji)(ji)啟(qi)動(dong)電(dian)氣(qi)(qi)(qi)裝置，PLC觸摸(mo)屏，靶流開關(guan)，冷(leng)凍(dong)(dong)水(shui)(shui)泵，冷(leng)卻水(shui)(shui)泵聯動(dong)控(kong)(kong)(kong)制線(控(kong)(kong)(kong)制接點為無(wu)源(yuan)接點)，溫度傳感器(qi)，冷(leng)凍(dong)(dong)，冷(leng)卻水(shui)(shui)泵，冷(leng)卻水(shui)(shui)塔聯動(dong)控(kong)(kong)(kong)制線(控(kong)(kong)(kong)制接點為無(wu)源(yuan)接點)，電(dian)控(kong)(kong)(kong)儀表等(deng)等(deng)節點。待確認好后，方(fang)可(ke)執(zhi)行(xing)開機(ji)(ji)操作(zuo)，確保冷(leng)水(shui)(shui)機(ji)(ji)組正常(chang)(chang)運(yun)行(xing)。
冷水機組屬于大功率機器(qi)，電壓基本都是工業電壓，380V，所以在安(an)裝(zhuang)冷水機時最好安(an)裝(zhuang)穩壓器(qi)。