工業冷(leng)水(shui)機(ji)(ji)機(ji)(ji)組(zu)應用(yong)廣泛(fan)，在有(you)工業的(de)地(di)方就要(yao)(yao)(yao)(yao)用(yong)到冷(leng)水(shui)機(ji)(ji)設備，如：化工冷(leng)水(shui)機(ji)(ji)、電(dian)鍍冷(leng)水(shui)機(ji)(ji)、食品冷(leng)水(shui)機(ji)(ji)、電(dian)子加工冷(leng)水(shui)機(ji)(ji)、模具(ju)冷(leng)水(shui)機(ji)(ji)、印(yin)刷(shua)冷(leng)水(shui)機(ji)(ji)等，而且大部(bu)分行(xing)業對(dui)于(yu)工業冷(leng)水(shui)機(ji)(ji)要(yao)(yao)(yao)(yao)求(qiu)(qiu)很高的(de)，大部(bu)分客戶(hu)的(de)要(yao)(yao)(yao)(yao)求(qiu)(qiu)都(dou)是24小時運轉，所(suo)(suo)以對(dui)冷(leng)水(shui)機(ji)(ji)的(de)電(dian)源電(dian)壓要(yao)(yao)(yao)(yao)求(qiu)(qiu)也很高，如果冷(leng)水(shui)機(ji)(ji)的(de)幾(ji)相電(dian)壓不平(ping)衡太于(yu)2%時，操作時有(you)可(ke)能損壞冷(leng)水(shui)機(ji)(ji)，所(suo)(suo)以要(yao)(yao)(yao)(yao)控制好(hao)冷(leng)水(shui)機(ji)(ji)。
冷水機電源(yuan)電壓的檢測
如果(guo)冷(leng)水機標準(zhun)電(dian)壓(ya)為(wei)3相，380V，50Hz，測得(de)UAB=376V，UAC=379V，UBC=385V。得(de)出(chu)平(ping)均(jun)電(dian)壓(ya)=(376+379+385)/3=380V：確(que)定與平(ping)均(jun)電(dian)壓(ya)的偏(pian)(pian)差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大(da)偏(pian)(pian)差值為(wei)5V，5/380=1.3%，得(de)出(chu)最大(da)相電(dian)壓(ya)不平(ping)衡為(wei)1.3%。
如(ru)果測(ce)得該電(dian)源和電(dian)壓(ya)在正(zheng)常范(fan)圍內，這樣就可以正(zheng)常開機。如(ru)果冷水機電(dian)源控制不(bu)好，那么(me)損壞的話就會有很高(gao)的一個維(wei)修(xiu)成本，按正(zheng)常來講的話電(dian)壓(ya)都會比較(jiao)正(zheng)常。
冷(leng)水機的(de)電(dian)源(yuan)電(dian)壓最大可允許的(de)相電(dian)壓不平(ping)(ping)衡為2%，相電(dian)流不平(ping)(ping)衡為10%。注(zhu)：當相電(dian)壓不平(ping)(ping)衡大于(yu)2%，絕對(dui)不能(neng)開(kai)機操作。
冷(leng)(leng)水(shui)機(ji)的工作電(dian)源(yuan)(yuan)是3相，380V，50Hz。在運(yun)(yun)行(xing)冷(leng)(leng)水(shui)機(ji)前，需(xu)要檢查電(dian)控(kong)(kong)(kong)柜中電(dian)源(yuan)(yuan)部分(fen)(fen)和(he)控(kong)(kong)(kong)制部分(fen)(fen)有(you)無異常(chang)，并固緊(jin)接(jie)線(xian)端(duan)子，包(bao)括總電(dian)源(yuan)(yuan)接(jie)線(xian)銅排，自動(dong)空氣(qi)斷路器(qi)(空氣(qi)開(kai)關(guan))，Δ-Δ或Y-Δ壓縮機(ji)啟動(dong)電(dian)氣(qi)裝置，PLC觸摸屏，靶流開(kai)關(guan)，冷(leng)(leng)凍(dong)水(shui)泵(beng)，冷(leng)(leng)卻水(shui)泵(beng)聯(lian)動(dong)控(kong)(kong)(kong)制線(xian)(控(kong)(kong)(kong)制接(jie)點(dian)(dian)為無源(yuan)(yuan)接(jie)點(dian)(dian))，溫度(du)傳感器(qi)，冷(leng)(leng)凍(dong)，冷(leng)(leng)卻水(shui)泵(beng)，冷(leng)(leng)卻水(shui)塔(ta)聯(lian)動(dong)控(kong)(kong)(kong)制線(xian)(控(kong)(kong)(kong)制接(jie)點(dian)(dian)為無源(yuan)(yuan)接(jie)點(dian)(dian))，電(dian)控(kong)(kong)(kong)儀(yi)表等等節點(dian)(dian)。待確(que)認好(hao)后，方可執行(xing)開(kai)機(ji)操作，確(que)保冷(leng)(leng)水(shui)機(ji)組正(zheng)常(chang)運(yun)(yun)行(xing)。
冷水(shui)機組屬(shu)于(yu)大(da)功率機器，電(dian)壓基(ji)本都是工業電(dian)壓，380V，所以在安(an)裝冷水(shui)機時最好安(an)裝穩壓器。