工业(ye)冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)机(ji)(ji)(ji)组应用广泛(fan)，在(zai)有(you)工业(ye)的地(di)方就要(yao)用到冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)设备，如：化(hua)工冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)、电镀冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)、食品冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)、电子加工冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)、模具冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)、印刷(shua)冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)等，而且大(da)(da)部分(fen)(fen)行业(ye)对于(yu)工业(ye)冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)要(yao)求(qiu)很高(gao)的，大(da)(da)部分(fen)(fen)客户的要(yao)求(qiu)都是24小(xiao)时运转，所以(yi)对冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)的电源电压要(yao)求(qiu)也很高(gao)，如果冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)的几(ji)相电压不平衡(heng)太于(yu)2%时，操作时有(you)可能损坏冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)，所以(yi)要(yao)控制好冷(leng)(leng)水(shui)(shui)(shui)(shui)机(ji)(ji)(ji)。
冷水机电(dian)源(yuan)电(dian)压的检测
如果冷水机标准电(dian)压为3相，380V，50Hz，测得(de)(de)UAB=376V，UAC=379V，UBC=385V。得(de)(de)出平均(jun)电(dian)压=(376+379+385)/3=380V：确(que)定与平均(jun)电(dian)压的偏差值(zhi)：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最大偏差值(zhi)为5V，5/380=1.3%，得(de)(de)出最大相电(dian)压不平衡为1.3%。
如果(guo)测得该电(dian)(dian)源和电(dian)(dian)压在正常范围内，这样就可以(yi)正常开机。如果(guo)冷水机电(dian)(dian)源控制(zhi)不(bu)好，那么损坏的话就会有很(hen)高的一个(ge)维修成(cheng)本，按(an)正常来(lai)讲(jiang)的话电(dian)(dian)压都会比较正常。
冷水机的(de)电源电压最(zui)大可允许的(de)相电压不(bu)(bu)平(ping)(ping)衡(heng)为2%，相电流不(bu)(bu)平(ping)(ping)衡(heng)为10%。注(zhu)：当相电压不(bu)(bu)平(ping)(ping)衡(heng)大于2%，绝对(dui)不(bu)(bu)能开机操作。
冷水(shui)(shui)机(ji)(ji)的工作电(dian)源是3相，380V，50Hz。在(zai)运(yun)行(xing)(xing)冷水(shui)(shui)机(ji)(ji)前，需要检查(cha)电(dian)控(kong)(kong)(kong)(kong)(kong)柜中电(dian)源部分(fen)和控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)部分(fen)有无异常，并(bing)固紧接(jie)线端子，包(bao)括(kuo)总(zong)电(dian)源接(jie)线铜排，自动空气断路器(空气开关)，Δ-Δ或Y-Δ压缩机(ji)(ji)启(qi)动电(dian)气装(zhuang)置，PLC触(chu)摸(mo)屏，靶流开关，冷冻水(shui)(shui)泵(beng)(beng)，冷却水(shui)(shui)泵(beng)(beng)联(lian)动控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)线(控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)接(jie)点(dian)(dian)为无源接(jie)点(dian)(dian))，温度传感器，冷冻，冷却水(shui)(shui)泵(beng)(beng)，冷却水(shui)(shui)塔联(lian)动控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)线(控(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)接(jie)点(dian)(dian)为无源接(jie)点(dian)(dian))，电(dian)控(kong)(kong)(kong)(kong)(kong)仪表等(deng)等(deng)节点(dian)(dian)。待确认好后，方可(ke)执(zhi)行(xing)(xing)开机(ji)(ji)操(cao)作，确保(bao)冷水(shui)(shui)机(ji)(ji)组正常运(yun)行(xing)(xing)。
冷水机组属于大功率(lv)机器，电(dian)压基本(ben)都是(shi)工(gong)业(ye)电(dian)压，380V，所(suo)以在安装冷水机时(shi)最好安装稳压器。