工(gong)業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)機(ji)(ji)組應(ying)用廣泛，在有工(gong)業(ye)的(de)地(di)方就要(yao)用到冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)設備，如(ru)：化工(gong)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)、電(dian)鍍冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)、食品冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)、電(dian)子加工(gong)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)、模具冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)、印刷(shua)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)等，而且大(da)部分(fen)行業(ye)對于工(gong)業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)要(yao)求(qiu)很(hen)(hen)高的(de)，大(da)部分(fen)客(ke)戶的(de)要(yao)求(qiu)都(dou)是24小(xiao)時運轉，所以對冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)的(de)電(dian)源電(dian)壓要(yao)求(qiu)也很(hen)(hen)高，如(ru)果冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)的(de)幾相(xiang)電(dian)壓不(bu)平衡太于2%時，操作時有可(ke)能損壞冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)，所以要(yao)控制好冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)。
冷(leng)水機電源(yuan)電壓(ya)的檢測
如果冷水機標準電(dian)(dian)壓為(wei)(wei)3相，380V，50Hz，測得(de)(de)UAB=376V，UAC=379V，UBC=385V。得(de)(de)出(chu)平均(jun)電(dian)(dian)壓=(376+379+385)/3=380V：確定與平均(jun)電(dian)(dian)壓的偏差值(zhi)：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最(zui)大(da)偏差值(zhi)為(wei)(wei)5V，5/380=1.3%，得(de)(de)出(chu)最(zui)大(da)相電(dian)(dian)壓不平衡為(wei)(wei)1.3%。
如果測(ce)得(de)該(gai)電源和電壓(ya)在正常范圍(wei)內，這樣就可以正常開機。如果冷水(shui)機電源控制不(bu)好，那么損壞的(de)話(hua)就會(hui)有很高的(de)一個維修成本，按正常來(lai)講的(de)話(hua)電壓(ya)都會(hui)比較(jiao)正常。
冷水機的電源電壓最大可(ke)允(yun)許的相電壓不(bu)(bu)平衡(heng)為(wei)(wei)2%，相電流不(bu)(bu)平衡(heng)為(wei)(wei)10%。注：當相電壓不(bu)(bu)平衡(heng)大于(yu)2%，絕(jue)對不(bu)(bu)能開(kai)機操作(zuo)。
冷水(shui)(shui)機(ji)(ji)的工作電(dian)(dian)源(yuan)是3相，380V，50Hz。在運行冷水(shui)(shui)機(ji)(ji)前，需要(yao)檢查電(dian)(dian)控(kong)(kong)柜中(zhong)電(dian)(dian)源(yuan)部分(fen)(fen)和控(kong)(kong)制(zhi)(zhi)(zhi)部分(fen)(fen)有無異常(chang)，并固緊接線(xian)端(duan)子，包括總電(dian)(dian)源(yuan)接線(xian)銅排，自動(dong)空(kong)氣(qi)斷路器(空(kong)氣(qi)開關(guan))，Δ-Δ或Y-Δ壓(ya)縮機(ji)(ji)啟動(dong)電(dian)(dian)氣(qi)裝置，PLC觸(chu)摸屏(ping)，靶(ba)流開關(guan)，冷凍水(shui)(shui)泵，冷卻(que)水(shui)(shui)泵聯動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)線(xian)(控(kong)(kong)制(zhi)(zhi)(zhi)接點為無源(yuan)接點)，溫度傳感器，冷凍，冷卻(que)水(shui)(shui)泵，冷卻(que)水(shui)(shui)塔聯動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)線(xian)(控(kong)(kong)制(zhi)(zhi)(zhi)接點為無源(yuan)接點)，電(dian)(dian)控(kong)(kong)儀表等(deng)等(deng)節點。待(dai)確認好后，方可(ke)執行開機(ji)(ji)操作，確保冷水(shui)(shui)機(ji)(ji)組正常(chang)運行。
冷水機(ji)組屬于大(da)功率機(ji)器(qi)，電壓基本都是工業電壓，380V，所以在安裝冷水機(ji)時最好(hao)安裝穩壓器(qi)。