工(gong)(gong)(gong)業(ye)冷水(shui)(shui)機(ji)(ji)機(ji)(ji)組應用(yong)廣(guang)泛，在有工(gong)(gong)(gong)業(ye)的(de)地方(fang)就要(yao)用(yong)到冷水(shui)(shui)機(ji)(ji)設備，如：化工(gong)(gong)(gong)冷水(shui)(shui)機(ji)(ji)、電(dian)(dian)鍍冷水(shui)(shui)機(ji)(ji)、食(shi)品冷水(shui)(shui)機(ji)(ji)、電(dian)(dian)子(zi)加(jia)工(gong)(gong)(gong)冷水(shui)(shui)機(ji)(ji)、模具冷水(shui)(shui)機(ji)(ji)、印刷(shua)冷水(shui)(shui)機(ji)(ji)等(deng)，而(er)且(qie)大(da)部分行(xing)業(ye)對于(yu)工(gong)(gong)(gong)業(ye)冷水(shui)(shui)機(ji)(ji)要(yao)求很(hen)高(gao)的(de)，大(da)部分客戶的(de)要(yao)求都是(shi)24小時運轉，所以對冷水(shui)(shui)機(ji)(ji)的(de)電(dian)(dian)源電(dian)(dian)壓要(yao)求也(ye)很(hen)高(gao)，如果冷水(shui)(shui)機(ji)(ji)的(de)幾相電(dian)(dian)壓不平衡太于(yu)2%時，操作(zuo)時有可能損壞冷水(shui)(shui)機(ji)(ji)，所以要(yao)控(kong)制好(hao)冷水(shui)(shui)機(ji)(ji)。
冷(leng)水機電源電壓的(de)檢測
如果冷水(shui)機(ji)標準電壓(ya)為(wei)3相，380V，50Hz，測得UAB=376V，UAC=379V，UBC=385V。得出平均(jun)電壓(ya)=(376+379+385)/3=380V：確定與平均(jun)電壓(ya)的偏差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最(zui)大偏差值為(wei)5V，5/380=1.3%，得出最(zui)大相電壓(ya)不(bu)平衡為(wei)1.3%。
如果(guo)測(ce)得(de)該電源和電壓在(zai)正常范圍內，這樣就(jiu)可以正常開機。如果(guo)冷(leng)水機電源控(kong)制不(bu)好，那么損壞的話就(jiu)會有很高的一個(ge)維(wei)修成本，按正常來講的話電壓都會比較(jiao)正常。
冷水(shui)機(ji)的電(dian)(dian)源電(dian)(dian)壓(ya)最(zui)大(da)可允許的相(xiang)(xiang)電(dian)(dian)壓(ya)不平(ping)衡(heng)為2%，相(xiang)(xiang)電(dian)(dian)流不平(ping)衡(heng)為10%。注：當(dang)相(xiang)(xiang)電(dian)(dian)壓(ya)不平(ping)衡(heng)大(da)于2%，絕對不能開(kai)機(ji)操作。
冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)的工作電(dian)源(yuan)是3相，380V，50Hz。在運行(xing)(xing)冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)前，需要檢查電(dian)控柜中電(dian)源(yuan)部分(fen)和控制(zhi)(zhi)部分(fen)有無(wu)異常，并固緊接(jie)線(xian)(xian)端子，包括總電(dian)源(yuan)接(jie)線(xian)(xian)銅(tong)排，自動空氣斷路器(qi)(空氣開(kai)(kai)關)，Δ-Δ或Y-Δ壓縮(suo)機(ji)(ji)啟動電(dian)氣裝(zhuang)置(zhi)，PLC觸摸屏，靶流(liu)開(kai)(kai)關，冷(leng)(leng)(leng)凍水(shui)(shui)(shui)泵，冷(leng)(leng)(leng)卻水(shui)(shui)(shui)泵聯動控制(zhi)(zhi)線(xian)(xian)(控制(zhi)(zhi)接(jie)點(dian)為無(wu)源(yuan)接(jie)點(dian))，溫(wen)度傳感(gan)器(qi)，冷(leng)(leng)(leng)凍，冷(leng)(leng)(leng)卻水(shui)(shui)(shui)泵，冷(leng)(leng)(leng)卻水(shui)(shui)(shui)塔(ta)聯動控制(zhi)(zhi)線(xian)(xian)(控制(zhi)(zhi)接(jie)點(dian)為無(wu)源(yuan)接(jie)點(dian))，電(dian)控儀表等等節點(dian)。待確認好(hao)后，方可執行(xing)(xing)開(kai)(kai)機(ji)(ji)操(cao)作，確保(bao)冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)組正常運行(xing)(xing)。
冷水(shui)機組屬于大功(gong)率機器，電壓(ya)基(ji)本都是工業(ye)電壓(ya)，380V，所以(yi)在安裝冷水(shui)機時最好安裝穩壓(ya)器。