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公 司: 武漢華巨冷制冷機電有限公司
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華巨制冷:電源電壓在工業冷水機中的意義是什么?

時間:2021-07-10瀏覽量:1587

  工業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)組應用廣(guang)泛,在有工業(ye)的(de)地方就要(yao)用到冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)設備(bei),如:化工冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)(dian)鍍冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、食(shi)品冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、電(dian)(dian)子加工冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、模具冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)、印(yin)刷(shua)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)等(deng),而(er)且大部分行業(ye)對(dui)于(yu)工業(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)要(yao)求很高的(de),大部分客戶的(de)要(yao)求都是24小(xiao)時運轉,所以(yi)對(dui)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)的(de)電(dian)(dian)源電(dian)(dian)壓要(yao)求也(ye)很高,如果冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)的(de)幾相電(dian)(dian)壓不平衡(heng)太于(yu)2%時,操作時有可能損壞冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji),所以(yi)要(yao)控(kong)制好冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)(shui)機(ji)(ji)(ji)(ji)。

  冷水機(ji)電源電壓的檢(jian)測

  如果(guo)冷水(shui)機標準電(dian)壓(ya)為(wei)3相,380V,50Hz,測得UAB=376V,UAC=379V,UBC=385V。得出(chu)平(ping)均電(dian)壓(ya)=(376+379+385)/3=380V:確定與平(ping)均電(dian)壓(ya)的偏差值(zhi):△UAB=380-376=4V,△UAC=380-379=1V,△UBC=385-380=5V,最大偏差值(zhi)為(wei)5V,5/380=1.3%,得出(chu)最大相電(dian)壓(ya)不(bu)平(ping)衡為(wei)1.3%。

  如(ru)果測得該電(dian)源(yuan)和電(dian)壓在正(zheng)常(chang)(chang)范圍內,這樣就(jiu)可以正(zheng)常(chang)(chang)開機。如(ru)果冷水機電(dian)源(yuan)控(kong)制不好(hao),那么損壞(huai)的話就(jiu)會(hui)有很(hen)高(gao)的一個維修成本(ben),按正(zheng)常(chang)(chang)來講的話電(dian)壓都(dou)會(hui)比較正(zheng)常(chang)(chang)。

  冷水機(ji)(ji)的(de)電源電壓最大可允許的(de)相電壓不平(ping)衡(heng)為2%,相電流不平(ping)衡(heng)為10%。注:當(dang)相電壓不平(ping)衡(heng)大于2%,絕對不能開機(ji)(ji)操作。

  冷(leng)水(shui)(shui)機(ji)(ji)(ji)的工作電(dian)源是3相(xiang),380V,50Hz。在(zai)運(yun)行冷(leng)水(shui)(shui)機(ji)(ji)(ji)前,需要(yao)檢(jian)查電(dian)控(kong)(kong)(kong)柜中(zhong)電(dian)源部分和控(kong)(kong)(kong)制(zhi)(zhi)部分有無(wu)(wu)(wu)異常(chang),并固緊接(jie)(jie)(jie)線端子,包(bao)括總電(dian)源接(jie)(jie)(jie)線銅(tong)排(pai),自動空氣斷(duan)路器(空氣開(kai)關),Δ-Δ或Y-Δ壓縮機(ji)(ji)(ji)啟動電(dian)氣裝置,PLC觸摸屏,靶流(liu)開(kai)關,冷(leng)凍水(shui)(shui)泵,冷(leng)卻水(shui)(shui)泵聯(lian)動控(kong)(kong)(kong)制(zhi)(zhi)線(控(kong)(kong)(kong)制(zhi)(zhi)接(jie)(jie)(jie)點為無(wu)(wu)(wu)源接(jie)(jie)(jie)點),溫度傳感器,冷(leng)凍,冷(leng)卻水(shui)(shui)泵,冷(leng)卻水(shui)(shui)塔聯(lian)動控(kong)(kong)(kong)制(zhi)(zhi)線(控(kong)(kong)(kong)制(zhi)(zhi)接(jie)(jie)(jie)點為無(wu)(wu)(wu)源接(jie)(jie)(jie)點),電(dian)控(kong)(kong)(kong)儀表等等節點。待確認(ren)好(hao)后,方可執行開(kai)機(ji)(ji)(ji)操(cao)作,確保冷(leng)水(shui)(shui)機(ji)(ji)(ji)組(zu)正常(chang)運(yun)行。

  冷(leng)水(shui)機組屬于大(da)功率機器,電壓(ya)基(ji)本都是(shi)工業電壓(ya),380V,所以在(zai)安裝冷(leng)水(shui)機時最好安裝穩壓(ya)器。

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