工业冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)机(ji)(ji)组应用广(guang)泛(fan)，在有工业的(de)(de)地方就要用到(dao)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)设(she)备，如：化工冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)、电(dian)镀冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)、食品冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)、电(dian)子加工冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)、模具冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)、印刷冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)等，而且大部(bu)分行业对于工业冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)要求(qiu)很高的(de)(de)，大部(bu)分客户的(de)(de)要求(qiu)都是24小时运转，所(suo)以对冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)的(de)(de)电(dian)源电(dian)压(ya)要求(qiu)也(ye)很高，如果冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)的(de)(de)几相电(dian)压(ya)不(bu)平衡太(tai)于2%时，操作时有可能损坏冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)，所(suo)以要控(kong)制好冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)(shui)机(ji)(ji)。
冷水机(ji)电源电压的(de)检(jian)测(ce)
如果冷水机标准(zhun)电(dian)(dian)压(ya)(ya)为(wei)(wei)3相，380V，50Hz，测(ce)得UAB=376V，UAC=379V，UBC=385V。得出平(ping)均电(dian)(dian)压(ya)(ya)=(376+379+385)/3=380V：确定(ding)与平(ping)均电(dian)(dian)压(ya)(ya)的偏差值：△UAB=380-376=4V，△UAC=380-379=1V，△UBC=385-380=5V，最(zui)大偏差值为(wei)(wei)5V，5/380=1.3%，得出最(zui)大相电(dian)(dian)压(ya)(ya)不平(ping)衡为(wei)(wei)1.3%。
如果(guo)测(ce)得(de)该电(dian)源和电(dian)压(ya)在正(zheng)常范围内，这样(yang)就可以正(zheng)常开机。如果(guo)冷水机电(dian)源控制不好(hao)，那么损坏(huai)的话就会(hui)有很高的一个(ge)维(wei)修成本，按正(zheng)常来讲的话电(dian)压(ya)都会(hui)比(bi)较正(zheng)常。
冷水机(ji)的电源电压最(zui)大可允许的相电压不(bu)平衡(heng)(heng)为2%，相电流不(bu)平衡(heng)(heng)为10%。注(zhu)：当相电压不(bu)平衡(heng)(heng)大于2%，绝对不(bu)能开机(ji)操(cao)作。
冷(leng)水(shui)机(ji)(ji)的工作电(dian)源(yuan)是3相，380V，50Hz。在运行冷(leng)水(shui)机(ji)(ji)前，需要检查电(dian)控(kong)(kong)(kong)(kong)柜中电(dian)源(yuan)部分和控(kong)(kong)(kong)(kong)制(zhi)部分有无异常，并固紧(jin)接(jie)(jie)线(xian)端(duan)子，包括总电(dian)源(yuan)接(jie)(jie)线(xian)铜(tong)排(pai)，自(zi)动(dong)空气断路器(qi)(空气开关(guan)(guan))，Δ-Δ或Y-Δ压缩机(ji)(ji)启动(dong)电(dian)气装置，PLC触摸屏(ping)，靶流开关(guan)(guan)，冷(leng)冻水(shui)泵，冷(leng)却水(shui)泵联(lian)(lian)动(dong)控(kong)(kong)(kong)(kong)制(zhi)线(xian)(控(kong)(kong)(kong)(kong)制(zhi)接(jie)(jie)点(dian)(dian)为(wei)(wei)无源(yuan)接(jie)(jie)点(dian)(dian))，温度(du)传(chuan)感器(qi)，冷(leng)冻，冷(leng)却水(shui)泵，冷(leng)却水(shui)塔(ta)联(lian)(lian)动(dong)控(kong)(kong)(kong)(kong)制(zhi)线(xian)(控(kong)(kong)(kong)(kong)制(zhi)接(jie)(jie)点(dian)(dian)为(wei)(wei)无源(yuan)接(jie)(jie)点(dian)(dian))，电(dian)控(kong)(kong)(kong)(kong)仪表等(deng)等(deng)节点(dian)(dian)。待确(que)认好后，方可执行开机(ji)(ji)操作，确(que)保冷(leng)水(shui)机(ji)(ji)组正常运行。
冷水机组属于大功(gong)率机器，电压(ya)(ya)基本都是(shi)工(gong)业电压(ya)(ya)，380V，所(suo)以在(zai)安装冷水机时最好(hao)安装稳压(ya)(ya)器。