工(gong)(gong)業冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機機組應(ying)用廣泛，在(zai)有(you)工(gong)(gong)業的地方就要(yao)用到冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機設備(bei)，如：化工(gong)(gong)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機、電(dian)(dian)(dian)(dian)鍍冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機、食(shi)品(pin)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機、電(dian)(dian)(dian)(dian)子加工(gong)(gong)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機、模具冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機、印刷冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機等，而且大部分(fen)行業對于工(gong)(gong)業冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機要(yao)求(qiu)(qiu)很高的，大部分(fen)客戶的要(yao)求(qiu)(qiu)都是24小時(shi)運轉，所(suo)以對冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機的電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓要(yao)求(qiu)(qiu)也(ye)很高，如果冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機的幾相電(dian)(dian)(dian)(dian)壓不平衡太于2%時(shi)，操作時(shi)有(you)可能損壞冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機，所(suo)以要(yao)控(kong)制好冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機。
冷水機電(dian)源電(dian)壓的檢測
如果(guo)冷水機標(biao)準電(dian)(dian)壓(ya)為(wei)3相(xiang)，380V，50Hz，測(ce)得UAB=376V，UAC=379V，UBC=385V。得出平(ping)均電(dian)(dian)壓(ya)=(376+379+385)/3=380V：確定與平(ping)均電(dian)(dian)壓(ya)的偏差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最(zui)大(da)(da)偏差值為(wei)5V，5/380=1.3%，得出最(zui)大(da)(da)相(xiang)電(dian)(dian)壓(ya)不平(ping)衡(heng)為(wei)1.3%。
如果(guo)測(ce)得該電(dian)源(yuan)和電(dian)壓(ya)在正常(chang)范(fan)圍內，這樣就(jiu)可以(yi)正常(chang)開機。如果(guo)冷水機電(dian)源(yuan)控制不好，那么損壞的(de)話(hua)就(jiu)會(hui)(hui)有很高的(de)一個維修成(cheng)本，按正常(chang)來講的(de)話(hua)電(dian)壓(ya)都會(hui)(hui)比較正常(chang)。
冷水機(ji)的電(dian)(dian)源電(dian)(dian)壓(ya)最大可允許(xu)的相電(dian)(dian)壓(ya)不(bu)平(ping)(ping)衡為(wei)(wei)2%，相電(dian)(dian)流不(bu)平(ping)(ping)衡為(wei)(wei)10%。注：當(dang)相電(dian)(dian)壓(ya)不(bu)平(ping)(ping)衡大于(yu)2%，絕對不(bu)能開(kai)機(ji)操作。
冷(leng)(leng)水(shui)機的工作電(dian)(dian)源(yuan)(yuan)是(shi)3相，380V，50Hz。在運行(xing)冷(leng)(leng)水(shui)機前(qian)，需要檢查電(dian)(dian)控(kong)柜中電(dian)(dian)源(yuan)(yuan)部(bu)分和控(kong)制(zhi)(zhi)(zhi)部(bu)分有無(wu)(wu)異常，并固緊(jin)接(jie)線(xian)(xian)端子，包括總電(dian)(dian)源(yuan)(yuan)接(jie)線(xian)(xian)銅排(pai)，自動(dong)空氣斷路器(空氣開關(guan)(guan))，Δ-Δ或Y-Δ壓縮機啟動(dong)電(dian)(dian)氣裝置，PLC觸摸屏(ping)，靶流開關(guan)(guan)，冷(leng)(leng)凍水(shui)泵，冷(leng)(leng)卻(que)(que)水(shui)泵聯動(dong)控(kong)制(zhi)(zhi)(zhi)線(xian)(xian)(控(kong)制(zhi)(zhi)(zhi)接(jie)點為無(wu)(wu)源(yuan)(yuan)接(jie)點)，溫(wen)度傳感(gan)器，冷(leng)(leng)凍，冷(leng)(leng)卻(que)(que)水(shui)泵，冷(leng)(leng)卻(que)(que)水(shui)塔聯動(dong)控(kong)制(zhi)(zhi)(zhi)線(xian)(xian)(控(kong)制(zhi)(zhi)(zhi)接(jie)點為無(wu)(wu)源(yuan)(yuan)接(jie)點)，電(dian)(dian)控(kong)儀表等(deng)等(deng)節點。待確認好后(hou)，方可執行(xing)開機操作，確保冷(leng)(leng)水(shui)機組正(zheng)常運行(xing)。
冷水(shui)機(ji)組屬于大功率機(ji)器，電(dian)(dian)壓基本都(dou)是工業電(dian)(dian)壓，380V，所以(yi)在安裝(zhuang)冷水(shui)機(ji)時最(zui)好安裝(zhuang)穩壓器。