工(gong)業(ye)(ye)冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)組應用(yong)廣(guang)泛，在(zai)有工(gong)業(ye)(ye)的(de)地方就要用(yong)到冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)設備(bei)，如：化工(gong)冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)(dian)(dian)鍍冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)、食(shi)品冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)(dian)(dian)子加工(gong)冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)、模具(ju)冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)、印刷冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)等(deng)，而且大(da)部分行業(ye)(ye)對于工(gong)業(ye)(ye)冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)要求很高(gao)的(de)，大(da)部分客戶的(de)要求都是24小時運轉，所以對冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)的(de)電(dian)(dian)(dian)源電(dian)(dian)(dian)壓要求也很高(gao)，如果冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)的(de)幾相(xiang)電(dian)(dian)(dian)壓不(bu)平衡太于2%時，操作時有可(ke)能損壞冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)，所以要控(kong)制好冷(leng)(leng)(leng)(leng)水(shui)(shui)機(ji)(ji)(ji)(ji)。
冷水(shui)機電源電壓的檢測(ce)
如果冷水(shui)機標準電(dian)(dian)壓(ya)為(wei)3相，380V，50Hz，測得UAB=376V，UAC=379V，UBC=385V。得出平均(jun)電(dian)(dian)壓(ya)=(376+379+385)/3=380V：確定與平均(jun)電(dian)(dian)壓(ya)的偏(pian)差值(zhi)：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大偏(pian)差值(zhi)為(wei)5V，5/380=1.3%，得出最大相電(dian)(dian)壓(ya)不平衡為(wei)1.3%。
如果測得該電(dian)源和電(dian)壓在正(zheng)常(chang)(chang)范圍內(nei)，這樣(yang)就(jiu)可以(yi)正(zheng)常(chang)(chang)開機。如果冷水機電(dian)源控制不好，那么損壞的(de)(de)話(hua)就(jiu)會有很高的(de)(de)一個維修成本(ben)，按正(zheng)常(chang)(chang)來講的(de)(de)話(hua)電(dian)壓都會比較正(zheng)常(chang)(chang)。
冷(leng)水機的(de)電(dian)源電(dian)壓最大(da)可(ke)允許(xu)的(de)相電(dian)壓不(bu)(bu)(bu)平衡為2%，相電(dian)流不(bu)(bu)(bu)平衡為10%。注：當相電(dian)壓不(bu)(bu)(bu)平衡大(da)于2%，絕對不(bu)(bu)(bu)能開機操作。
冷(leng)水(shui)機(ji)的工作電(dian)源(yuan)是3相(xiang)，380V，50Hz。在運行冷(leng)水(shui)機(ji)前，需要檢(jian)查電(dian)控(kong)(kong)柜中(zhong)電(dian)源(yuan)部分和(he)控(kong)(kong)制部分有無異常(chang)(chang)，并固緊接(jie)線(xian)端子(zi)，包括總(zong)電(dian)源(yuan)接(jie)線(xian)銅(tong)排，自動(dong)(dong)空(kong)氣斷路器(qi)(空(kong)氣開關(guan))，Δ-Δ或Y-Δ壓縮(suo)機(ji)啟動(dong)(dong)電(dian)氣裝置，PLC觸摸屏，靶流開關(guan)，冷(leng)凍水(shui)泵(beng)，冷(leng)卻水(shui)泵(beng)聯(lian)動(dong)(dong)控(kong)(kong)制線(xian)(控(kong)(kong)制接(jie)點(dian)(dian)(dian)為(wei)(wei)無源(yuan)接(jie)點(dian)(dian)(dian))，溫度(du)傳感(gan)器(qi)，冷(leng)凍，冷(leng)卻水(shui)泵(beng)，冷(leng)卻水(shui)塔(ta)聯(lian)動(dong)(dong)控(kong)(kong)制線(xian)(控(kong)(kong)制接(jie)點(dian)(dian)(dian)為(wei)(wei)無源(yuan)接(jie)點(dian)(dian)(dian))，電(dian)控(kong)(kong)儀表(biao)等等節點(dian)(dian)(dian)。待確認(ren)好后，方可執行開機(ji)操作，確保冷(leng)水(shui)機(ji)組正常(chang)(chang)運行。
冷水機組屬于(yu)大(da)功(gong)率機器，電壓基本都是(shi)工業(ye)電壓，380V，所(suo)以在安(an)裝冷水機時最好(hao)安(an)裝穩壓器。