工(gong)(gong)業冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)機(ji)(ji)(ji)組應用廣泛，在(zai)有(you)工(gong)(gong)業的地方就要用到冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)設備，如(ru)：化(hua)工(gong)(gong)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)、電(dian)(dian)鍍冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)、食品(pin)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)、電(dian)(dian)子加工(gong)(gong)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)、模具冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)、印刷冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)等，而且大部分行業對于工(gong)(gong)業冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)要求(qiu)(qiu)很高的，大部分客(ke)戶(hu)的要求(qiu)(qiu)都是24小時運(yun)轉，所(suo)以(yi)對冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)的電(dian)(dian)源電(dian)(dian)壓要求(qiu)(qiu)也很高，如(ru)果冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)的幾相電(dian)(dian)壓不平衡太于2%時，操作時有(you)可能(neng)損壞冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)，所(suo)以(yi)要控制好冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)。
冷(leng)水(shui)機電源電壓的檢測(ce)
如(ru)果冷水機標(biao)準電壓為3相，380V，50Hz，測得UAB=376V，UAC=379V，UBC=385V。得出(chu)平均電壓=(376+379+385)/3=380V：確定與平均電壓的偏差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大(da)偏差值為5V，5/380=1.3%，得出(chu)最大(da)相電壓不平衡為1.3%。
如果測(ce)得該電源和電壓(ya)在正(zheng)(zheng)常(chang)(chang)范圍內，這樣(yang)就可(ke)以正(zheng)(zheng)常(chang)(chang)開機。如果冷水(shui)機電源控制不好(hao)，那么損壞(huai)的(de)話(hua)就會有很高的(de)一個(ge)維修(xiu)成(cheng)本，按正(zheng)(zheng)常(chang)(chang)來講(jiang)的(de)話(hua)電壓(ya)都會比較正(zheng)(zheng)常(chang)(chang)。
冷水(shui)機的電(dian)源電(dian)壓最大可允(yun)許(xu)的相(xiang)電(dian)壓不(bu)平(ping)衡(heng)(heng)(heng)為(wei)2%，相(xiang)電(dian)流不(bu)平(ping)衡(heng)(heng)(heng)為(wei)10%。注：當相(xiang)電(dian)壓不(bu)平(ping)衡(heng)(heng)(heng)大于2%，絕對不(bu)能開機操作。
冷水機(ji)的工作電(dian)(dian)源(yuan)(yuan)是3相(xiang)，380V，50Hz。在運(yun)行(xing)冷水機(ji)前，需要檢(jian)查電(dian)(dian)控(kong)(kong)柜中電(dian)(dian)源(yuan)(yuan)部(bu)分(fen)和控(kong)(kong)制(zhi)部(bu)分(fen)有無異常，并固緊(jin)接(jie)線(xian)端子(zi)，包括(kuo)總電(dian)(dian)源(yuan)(yuan)接(jie)線(xian)銅排，自動空氣(qi)(qi)斷路器(空氣(qi)(qi)開關)，Δ-Δ或Y-Δ壓(ya)縮機(ji)啟動電(dian)(dian)氣(qi)(qi)裝(zhuang)置(zhi)，PLC觸(chu)摸屏，靶流(liu)開關，冷凍(dong)水泵(beng)，冷卻(que)水泵(beng)聯(lian)動控(kong)(kong)制(zhi)線(xian)(控(kong)(kong)制(zhi)接(jie)點(dian)為(wei)無源(yuan)(yuan)接(jie)點(dian))，溫度傳感器，冷凍(dong)，冷卻(que)水泵(beng)，冷卻(que)水塔聯(lian)動控(kong)(kong)制(zhi)線(xian)(控(kong)(kong)制(zhi)接(jie)點(dian)為(wei)無源(yuan)(yuan)接(jie)點(dian))，電(dian)(dian)控(kong)(kong)儀表等(deng)(deng)等(deng)(deng)節點(dian)。待確認(ren)好后，方(fang)可執行(xing)開機(ji)操(cao)作，確保冷水機(ji)組(zu)正常運(yun)行(xing)。
冷水(shui)機(ji)組屬于大(da)功(gong)率機(ji)器，電(dian)壓基本都(dou)是工業電(dian)壓，380V，所以在(zai)安(an)裝冷水(shui)機(ji)時(shi)最好安(an)裝穩壓器。