變頻螺桿式冷水機(ji)(ji)運(yun)行前(qian)的(de)檢(jian)(jian)查(cha)項目，電(dian)(dian)(dian)(dian)源(yuan)及電(dian)(dian)(dian)(dian)控儀表(biao)系統(tong)的(de)檢(jian)(jian)查(cha)。開(kai)機(ji)(ji)前(qian)檢(jian)(jian)查(cha)配電(dian)(dian)(dian)(dian)容量是(shi)否(fou)(fou)(fou)(fou)與(yu)機(ji)(ji)組功率一致(zhi)，選(xuan)擇的(de)電(dian)(dian)(dian)(dian)纜(lan)線(xian)(xian)徑是(shi)否(fou)(fou)(fou)(fou)能承受主(zhu)(zhu)機(ji)(ji)的(de)大工作電(dian)(dian)(dian)(dian)流。檢(jian)(jian)查(cha)電(dian)(dian)(dian)(dian)氣系統(tong)是(shi)否(fou)(fou)(fou)(fou)與(yu)機(ji)(ji)組一致(zhi)。機(ji)(ji)組電(dian)(dian)(dian)(dian)氣系統(tong)為(wei)三相(xiang)(xiang)五(wu)線(xian)(xian)制(zhi)（三相(xiang)(xiang)線(xian)(xian)，一根零線(xian)(xian)，一根地(di)線(xian)(xian)，380V±10%）。檢(jian)(jian)查(cha)壓(ya)縮機(ji)(ji)電(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)是(shi)否(fou)(fou)(fou)(fou)連接(jie)良(liang)好。如果(guo)松動(dong)，請重新擰緊。壓(ya)縮機(ji)(ji)接(jie)線(xian)(xian)處(chu)使用(yong)(yong)的(de)扭矩為(wei)500kg cm。由于(yu)主(zhu)(zhu)機(ji)(ji)的(de)長途運(yun)輸(shu)和吊裝(zhuang)(zhuang)，螺釘(ding)可能會松動(dong)。否(fou)(fou)(fou)(fou)則可能會損壞主(zhu)(zhu)機(ji)(ji)控制(zhi)柜和壓(ya)縮機(ji)(ji)內的(de)電(dian)(dian)(dian)(dian)氣元件（如空氣開(kai)關、交流接(jie)觸器等）。用(yong)(yong)萬(wan)用(yong)(yong)表(biao)仔細檢(jian)(jian)查(cha)所有電(dian)(dian)(dian)(dian)路(lu)，看接(jie)線(xian)(xian)是(shi)否(fou)(fou)(fou)(fou)正(zheng)確(que)；用(yong)(yong)兆歐(ou)測量，確(que)保(bao)外殼沒有短路(lu)；檢(jian)(jian)查(cha)接(jie)地(di)線(xian)(xian)是(shi)否(fou)(fou)(fou)(fou)正(zheng)確(que)安(an)裝(zhuang)(zhuang)，對地(di)絕(jue)緣電(dian)(dian)(dian)(dian)阻是(shi)否(fou)(fou)(fou)(fou)大于(yu)2MΩ；檢(jian)(jian)查(cha)電(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)是(shi)否(fou)(fou)(fou)(fou)滿足容量要求。檢(jian)(jian)查(cha)是(shi)否(fou)(fou)(fou)(fou)在(zai)設備的(de)電(dian)(dian)(dian)(dian)源(yuan)線(xian)(xian)上安(an)裝(zhuang)(zhuang)了斷路(lu)器。

    控(kong)制柜(ju)(ju)內(nei)主電(dian)(dian)(dian)路(lu)的所有接線(xian)(xian)和控(kong)制電(dian)(dian)(dian)路(lu)的外部接線(xian)(xian)在通(tong)(tong)電(dian)(dian)(dian)前都(dou)應對照接線(xian)(xian)圖進行(xing)全(quan)面檢查(cha)（如曲軸箱(xiang)油加熱(re)器(qi)(qi)(qi)接線(xian)(xian)、壓縮機電(dian)(dian)(dian)子保護(hu)器(qi)(qi)(qi)、循(xun)環水(shui)溫度傳感器(qi)(qi)(qi)、目標流(liu)量開關、水(shui)泵聯合(he)控(kong)制等）；檢查(cha)端子螺栓是(shi)否(fou)緊固無(wu)松動。檢查(cha)電(dian)(dian)(dian)控(kong)儀(yi)表、電(dian)(dian)(dian)器(qi)(qi)(qi)是(shi)否(fou)安裝正(zheng)(zheng)確、完(wan)整、有效，電(dian)(dian)(dian)控(kong)柜(ju)(ju)內(nei)外，特別(bie)是(shi)各點(dian)接線(xian)(xian)口是(shi)否(fou)清潔(jie)、無(wu)雜物(wu)。檢查(cha)以上各項(xiang)后，當控(kong)制柜(ju)(ju)通(tong)(tong)電(dian)(dian)(dian)時(shi)(shi)，電(dian)(dian)(dian)源指示(shi)燈亮。這時(shi)(shi)，油加熱(re)器(qi)(qi)(qi)開始(shi)工(gong)作。觀察相序保護(hu)器(qi)(qi)(qi)是(shi)否(fou)正(zheng)(zheng)常。如果相序保護(hu)器(qi)(qi)(qi)正(zheng)(zheng)常（綠燈亮），閉合(he)控(kong)制柜(ju)(ju)內(nei)的單*開關（QF2），控(kong)制電(dian)(dian)(dian)路(lu)開始(shi)工(gong)作。觸摸屏（文(wen)字(zi)顯示(shi)）和PLC控(kong)制器(qi)(qi)(qi)全(quan)部投入運行(xing)。