變頻螺桿式(shi)冷水機(ji)(ji)運行前的(de)(de)檢(jian)(jian)(jian)(jian)(jian)(jian)查項目，電(dian)源及(ji)電(dian)控儀表(biao)系統的(de)(de)檢(jian)(jian)(jian)(jian)(jian)(jian)查。開(kai)(kai)機(ji)(ji)前檢(jian)(jian)(jian)(jian)(jian)(jian)查配電(dian)容量是否(fou)與機(ji)(ji)組(zu)功率一(yi)(yi)致，選擇的(de)(de)電(dian)纜(lan)線(xian)(xian)(xian)(xian)徑是否(fou)能承(cheng)受主機(ji)(ji)的(de)(de)大工作電(dian)流。檢(jian)(jian)(jian)(jian)(jian)(jian)查電(dian)氣系統是否(fou)與機(ji)(ji)組(zu)一(yi)(yi)致。機(ji)(ji)組(zu)電(dian)氣系統為(wei)三相五線(xian)(xian)(xian)(xian)制(zhi)（三相線(xian)(xian)(xian)(xian)，一(yi)(yi)根(gen)零線(xian)(xian)(xian)(xian)，一(yi)(yi)根(gen)地線(xian)(xian)(xian)(xian)，380V±10%）。檢(jian)(jian)(jian)(jian)(jian)(jian)查壓(ya)縮機(ji)(ji)電(dian)源線(xian)(xian)(xian)(xian)是否(fou)連接(jie)良好。如果松動(dong)，請重(zhong)新(xin)擰(ning)緊。壓(ya)縮機(ji)(ji)接(jie)線(xian)(xian)(xian)(xian)處使用(yong)(yong)的(de)(de)扭矩為(wei)500kg cm。由于主機(ji)(ji)的(de)(de)長途(tu)運輸和吊(diao)裝(zhuang)，螺釘可(ke)能會松動(dong)。否(fou)則可(ke)能會損壞主機(ji)(ji)控制(zhi)柜和壓(ya)縮機(ji)(ji)內(nei)的(de)(de)電(dian)氣元件（如空(kong)氣開(kai)(kai)關、交流接(jie)觸器(qi)等）。用(yong)(yong)萬(wan)用(yong)(yong)表(biao)仔細檢(jian)(jian)(jian)(jian)(jian)(jian)查所有電(dian)路(lu)(lu)，看接(jie)線(xian)(xian)(xian)(xian)是否(fou)正確；用(yong)(yong)兆歐測量，確保外殼沒有短路(lu)(lu)；檢(jian)(jian)(jian)(jian)(jian)(jian)查接(jie)地線(xian)(xian)(xian)(xian)是否(fou)正確安裝(zhuang)，對地絕緣(yuan)電(dian)阻是否(fou)大于2MΩ；檢(jian)(jian)(jian)(jian)(jian)(jian)查電(dian)源線(xian)(xian)(xian)(xian)是否(fou)滿足容量要求。檢(jian)(jian)(jian)(jian)(jian)(jian)查是否(fou)在(zai)設備的(de)(de)電(dian)源線(xian)(xian)(xian)(xian)上安裝(zhuang)了斷路(lu)(lu)器(qi)。

    控(kong)制(zhi)柜內(nei)主(zhu)電(dian)(dian)路的所有(you)(you)接(jie)(jie)線和(he)控(kong)制(zhi)電(dian)(dian)路的外部(bu)接(jie)(jie)線在通(tong)電(dian)(dian)前都應(ying)對照接(jie)(jie)線圖進行全面檢(jian)(jian)查（如曲軸箱(xiang)油加熱器(qi)(qi)接(jie)(jie)線、壓(ya)縮機電(dian)(dian)子保(bao)護(hu)器(qi)(qi)、循環水(shui)溫(wen)度傳感器(qi)(qi)、目標流量(liang)開(kai)關、水(shui)泵聯(lian)合(he)控(kong)制(zhi)等(deng)）；檢(jian)(jian)查端子螺栓是否緊固無(wu)松動。檢(jian)(jian)查電(dian)(dian)控(kong)儀表、電(dian)(dian)器(qi)(qi)是否安裝正(zheng)確、完(wan)整、有(you)(you)效，電(dian)(dian)控(kong)柜內(nei)外，特別是各(ge)點接(jie)(jie)線口是否清潔、無(wu)雜物。檢(jian)(jian)查以上各(ge)項后，當控(kong)制(zhi)柜通(tong)電(dian)(dian)時(shi)，電(dian)(dian)源指示燈(deng)(deng)亮(liang)。這(zhe)時(shi)，油加熱器(qi)(qi)開(kai)始工作(zuo)。觀察相序保(bao)護(hu)器(qi)(qi)是否正(zheng)常(chang)。如果(guo)相序保(bao)護(hu)器(qi)(qi)正(zheng)常(chang)（綠燈(deng)(deng)亮(liang)），閉合(he)控(kong)制(zhi)柜內(nei)的單*開(kai)關（QF2），控(kong)制(zhi)電(dian)(dian)路開(kai)始工作(zuo)。觸摸屏(ping)（文字(zi)顯示）和(he)PLC控(kong)制(zhi)器(qi)(qi)全部(bu)投(tou)入運行。