工(gong)業(ye)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)機(ji)組應用(yong)廣泛(fan)，在有工(gong)業(ye)的(de)(de)(de)地方就要(yao)用(yong)到冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)設備，如：化工(gong)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)、電(dian)(dian)鍍(du)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)、食(shi)品冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)、電(dian)(dian)子加工(gong)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)、模具冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)、印(yin)刷冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)等，而且大部分行(xing)業(ye)對于工(gong)業(ye)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)要(yao)求很(hen)高(gao)的(de)(de)(de)，大部分客戶的(de)(de)(de)要(yao)求都是24小(xiao)時(shi)運轉(zhuan)，所以對冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)的(de)(de)(de)電(dian)(dian)源電(dian)(dian)壓要(yao)求也很(hen)高(gao)，如果冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)的(de)(de)(de)幾相電(dian)(dian)壓不平衡(heng)太于2%時(shi)，操作時(shi)有可能損壞(huai)冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)，所以要(yao)控制好冷(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)。
冷水機電(dian)源(yuan)電(dian)壓(ya)的檢(jian)測
如果冷水機標準電壓(ya)為3相，380V，50Hz，測得(de)(de)UAB=376V，UAC=379V，UBC=385V。得(de)(de)出(chu)(chu)平(ping)均電壓(ya)=(376+379+385)/3=380V：確定與平(ping)均電壓(ya)的偏(pian)差(cha)值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大偏(pian)差(cha)值為5V，5/380=1.3%，得(de)(de)出(chu)(chu)最大相電壓(ya)不平(ping)衡為1.3%。
如果測得該電(dian)源和電(dian)壓(ya)在(zai)正常(chang)范圍(wei)內，這樣就可以正常(chang)開機。如果冷水機電(dian)源控制不好，那么損壞的(de)話就會有很高的(de)一個維修(xiu)成(cheng)本(ben)，按正常(chang)來講的(de)話電(dian)壓(ya)都(dou)會比較正常(chang)。
冷水機的(de)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓最大可允許的(de)相(xiang)電(dian)(dian)(dian)(dian)壓不平衡為(wei)2%，相(xiang)電(dian)(dian)(dian)(dian)流不平衡為(wei)10%。注：當相(xiang)電(dian)(dian)(dian)(dian)壓不平衡大于(yu)2%，絕(jue)對不能開(kai)機操作(zuo)。
冷(leng)(leng)(leng)水(shui)(shui)機(ji)的工作電源(yuan)是(shi)3相，380V，50Hz。在運行冷(leng)(leng)(leng)水(shui)(shui)機(ji)前，需要檢查(cha)電控柜中電源(yuan)部(bu)分和(he)控制(zhi)部(bu)分有無異常(chang)，并(bing)固緊接(jie)線端(duan)子，包括總電源(yuan)接(jie)線銅排，自(zi)動空氣斷路器(qi)(空氣開(kai)關)，Δ-Δ或Y-Δ壓縮機(ji)啟動電氣裝置，PLC觸(chu)摸屏(ping)，靶流開(kai)關，冷(leng)(leng)(leng)凍水(shui)(shui)泵(beng)，冷(leng)(leng)(leng)卻水(shui)(shui)泵(beng)聯(lian)動控制(zhi)線(控制(zhi)接(jie)點(dian)為(wei)無源(yuan)接(jie)點(dian))，溫度傳(chuan)感器(qi)，冷(leng)(leng)(leng)凍，冷(leng)(leng)(leng)卻水(shui)(shui)泵(beng)，冷(leng)(leng)(leng)卻水(shui)(shui)塔(ta)聯(lian)動控制(zhi)線(控制(zhi)接(jie)點(dian)為(wei)無源(yuan)接(jie)點(dian))，電控儀表等(deng)等(deng)節點(dian)。待確認好(hao)后，方可執行開(kai)機(ji)操作，確保冷(leng)(leng)(leng)水(shui)(shui)機(ji)組正(zheng)常(chang)運行。
冷水機(ji)組(zu)屬于大功率(lv)機(ji)器，電壓(ya)基本都是工業電壓(ya)，380V，所以(yi)在(zai)安裝冷水機(ji)時最好安裝穩(wen)壓(ya)器。