工(gong)(gong)業(ye)(ye)冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)機(ji)(ji)(ji)組應用(yong)廣(guang)泛，在(zai)有工(gong)(gong)業(ye)(ye)的(de)(de)地方就(jiu)要用(yong)到冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)設備(bei)，如：化工(gong)(gong)冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)、電(dian)(dian)鍍冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)、食(shi)品冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)、電(dian)(dian)子加(jia)工(gong)(gong)冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)、模具冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)、印(yin)刷冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)等，而且大(da)部分(fen)行業(ye)(ye)對(dui)于(yu)工(gong)(gong)業(ye)(ye)冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)要求很高(gao)的(de)(de)，大(da)部分(fen)客戶的(de)(de)要求都是24小時運(yun)轉，所(suo)以(yi)對(dui)冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)的(de)(de)電(dian)(dian)源電(dian)(dian)壓(ya)要求也很高(gao)，如果冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)的(de)(de)幾(ji)相(xiang)電(dian)(dian)壓(ya)不(bu)平衡太于(yu)2%時，操作時有可能(neng)損(sun)壞(huai)冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)，所(suo)以(yi)要控制(zhi)好冷(leng)水(shui)(shui)(shui)機(ji)(ji)(ji)。
冷(leng)水(shui)機(ji)電源電壓的(de)檢測
如(ru)果冷水機標準電壓(ya)(ya)為3相，380V，50Hz，測得UAB=376V，UAC=379V，UBC=385V。得出平(ping)均電壓(ya)(ya)=(376+379+385)/3=380V：確(que)定與平(ping)均電壓(ya)(ya)的偏(pian)差(cha)值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大(da)偏(pian)差(cha)值為5V，5/380=1.3%，得出最大(da)相電壓(ya)(ya)不平(ping)衡為1.3%。
如果(guo)測得該電(dian)(dian)源(yuan)和電(dian)(dian)壓在(zai)正(zheng)(zheng)常范圍內(nei)，這樣就(jiu)(jiu)可(ke)以正(zheng)(zheng)常開機(ji)。如果(guo)冷水機(ji)電(dian)(dian)源(yuan)控制不好，那么損壞的話就(jiu)(jiu)會(hui)有很高的一個維修成本，按(an)正(zheng)(zheng)常來講的話電(dian)(dian)壓都會(hui)比(bi)較正(zheng)(zheng)常。
冷水機的(de)(de)電(dian)(dian)源電(dian)(dian)壓最(zui)大可允許的(de)(de)相電(dian)(dian)壓不(bu)平衡(heng)為2%，相電(dian)(dian)流不(bu)平衡(heng)為10%。注：當相電(dian)(dian)壓不(bu)平衡(heng)大于2%，絕對不(bu)能開(kai)機操作。
冷(leng)水(shui)(shui)機的工作(zuo)電(dian)(dian)(dian)源(yuan)是3相，380V，50Hz。在運(yun)行冷(leng)水(shui)(shui)機前(qian)，需要檢(jian)查電(dian)(dian)(dian)控(kong)(kong)柜中電(dian)(dian)(dian)源(yuan)部分和(he)控(kong)(kong)制(zhi)(zhi)(zhi)部分有無(wu)異(yi)常(chang)，并(bing)固緊(jin)接(jie)(jie)線端子，包括總(zong)電(dian)(dian)(dian)源(yuan)接(jie)(jie)線銅排，自動空氣斷(duan)路器(空氣開關)，Δ-Δ或Y-Δ壓縮機啟動電(dian)(dian)(dian)氣裝置(zhi)，PLC觸摸屏，靶流(liu)開關，冷(leng)凍水(shui)(shui)泵(beng)(beng)，冷(leng)卻水(shui)(shui)泵(beng)(beng)聯(lian)動控(kong)(kong)制(zhi)(zhi)(zhi)線(控(kong)(kong)制(zhi)(zhi)(zhi)接(jie)(jie)點為無(wu)源(yuan)接(jie)(jie)點)，溫度傳感器，冷(leng)凍，冷(leng)卻水(shui)(shui)泵(beng)(beng)，冷(leng)卻水(shui)(shui)塔聯(lian)動控(kong)(kong)制(zhi)(zhi)(zhi)線(控(kong)(kong)制(zhi)(zhi)(zhi)接(jie)(jie)點為無(wu)源(yuan)接(jie)(jie)點)，電(dian)(dian)(dian)控(kong)(kong)儀表等等節點。待確(que)認好后，方可執行開機操作(zuo)，確(que)保冷(leng)水(shui)(shui)機組正常(chang)運(yun)行。
冷水(shui)機(ji)組屬于大功率機(ji)器，電(dian)壓(ya)基本都(dou)是工(gong)業電(dian)壓(ya)，380V，所以在安裝冷水(shui)機(ji)時最(zui)好(hao)安裝穩壓(ya)器。