工(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)機(ji)(ji)組(zu)應用廣(guang)泛，在有工(gong)(gong)業(ye)的(de)地方就要(yao)用到冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)設(she)備(bei)，如：化工(gong)(gong)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)、電(dian)鍍冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)、食品冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)、電(dian)子加工(gong)(gong)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)、模具冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)、印刷冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)等，而且大(da)部(bu)分行業(ye)對(dui)于(yu)工(gong)(gong)業(ye)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)要(yao)求很(hen)(hen)高(gao)的(de)，大(da)部(bu)分客戶的(de)要(yao)求都是24小時(shi)運(yun)轉，所(suo)以對(dui)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)的(de)電(dian)源電(dian)壓(ya)要(yao)求也很(hen)(hen)高(gao)，如果冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)的(de)幾相(xiang)電(dian)壓(ya)不平衡太于(yu)2%時(shi)，操作時(shi)有可(ke)能(neng)損壞(huai)冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)，所(suo)以要(yao)控制好冷(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)。
冷水機電源(yuan)電壓(ya)的檢測
如果冷水機標準電(dian)壓為3相，380V，50Hz，測(ce)得(de)UAB=376V，UAC=379V，UBC=385V。得(de)出平均電(dian)壓=(376+379+385)/3=380V：確定與平均電(dian)壓的偏(pian)差(cha)值(zhi)：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大(da)(da)偏(pian)差(cha)值(zhi)為5V，5/380=1.3%，得(de)出最大(da)(da)相電(dian)壓不平衡為1.3%。
如果測得該(gai)電(dian)源和電(dian)壓(ya)在正(zheng)常范圍內(nei)，這樣就(jiu)可以正(zheng)常開機(ji)。如果冷水機(ji)電(dian)源控制(zhi)不(bu)好，那么損壞的話就(jiu)會(hui)(hui)有很高的一個(ge)維(wei)修成本，按正(zheng)常來講的話電(dian)壓(ya)都會(hui)(hui)比較正(zheng)常。
冷(leng)水(shui)機的(de)電源(yuan)電壓最大(da)可允許(xu)的(de)相(xiang)電壓不(bu)平(ping)衡(heng)(heng)為(wei)2%，相(xiang)電流不(bu)平(ping)衡(heng)(heng)為(wei)10%。注：當(dang)相(xiang)電壓不(bu)平(ping)衡(heng)(heng)大(da)于2%，絕(jue)對不(bu)能開(kai)機操(cao)作。
冷(leng)(leng)水機的工作電(dian)源是3相，380V，50Hz。在運行(xing)(xing)冷(leng)(leng)水機前，需(xu)要檢查(cha)電(dian)控(kong)(kong)(kong)(kong)柜中電(dian)源部(bu)分和控(kong)(kong)(kong)(kong)制部(bu)分有(you)無異常，并固緊接(jie)(jie)線(xian)(xian)端(duan)子，包括總電(dian)源接(jie)(jie)線(xian)(xian)銅排，自動(dong)(dong)空氣斷路器(qi)(qi)(空氣開關)，Δ-Δ或Y-Δ壓縮機啟動(dong)(dong)電(dian)氣裝置，PLC觸(chu)摸屏，靶(ba)流開關，冷(leng)(leng)凍(dong)水泵(beng)，冷(leng)(leng)卻水泵(beng)聯動(dong)(dong)控(kong)(kong)(kong)(kong)制線(xian)(xian)(控(kong)(kong)(kong)(kong)制接(jie)(jie)點(dian)(dian)為無源接(jie)(jie)點(dian)(dian))，溫度傳感器(qi)(qi)，冷(leng)(leng)凍(dong)，冷(leng)(leng)卻水泵(beng)，冷(leng)(leng)卻水塔聯動(dong)(dong)控(kong)(kong)(kong)(kong)制線(xian)(xian)(控(kong)(kong)(kong)(kong)制接(jie)(jie)點(dian)(dian)為無源接(jie)(jie)點(dian)(dian))，電(dian)控(kong)(kong)(kong)(kong)儀表等等節點(dian)(dian)。待確認(ren)好(hao)后，方可執行(xing)(xing)開機操作，確保冷(leng)(leng)水機組正(zheng)常運行(xing)(xing)。
冷(leng)(leng)水(shui)機(ji)(ji)組屬于大(da)功(gong)率機(ji)(ji)器，電壓基本都是工業(ye)電壓，380V，所以在安裝(zhuang)(zhuang)冷(leng)(leng)水(shui)機(ji)(ji)時最好(hao)安裝(zhuang)(zhuang)穩壓器。