變頻螺桿式冷水機(ji)(ji)運行前的(de)(de)檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)項(xiang)目(mu)，電(dian)源(yuan)及電(dian)控儀表(biao)系統(tong)的(de)(de)檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)。開機(ji)(ji)前檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)配電(dian)容(rong)量是(shi)(shi)(shi)否(fou)(fou)(fou)與機(ji)(ji)組(zu)功(gong)率一(yi)致(zhi)，選擇的(de)(de)電(dian)纜(lan)線(xian)(xian)(xian)徑(jing)是(shi)(shi)(shi)否(fou)(fou)(fou)能承受主(zhu)機(ji)(ji)的(de)(de)大(da)工作電(dian)流(liu)。檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)電(dian)氣(qi)(qi)系統(tong)是(shi)(shi)(shi)否(fou)(fou)(fou)與機(ji)(ji)組(zu)一(yi)致(zhi)。機(ji)(ji)組(zu)電(dian)氣(qi)(qi)系統(tong)為(wei)三相(xiang)五線(xian)(xian)(xian)制（三相(xiang)線(xian)(xian)(xian)，一(yi)根零線(xian)(xian)(xian)，一(yi)根地線(xian)(xian)(xian)，380V±10%）。檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)壓縮機(ji)(ji)電(dian)源(yuan)線(xian)(xian)(xian)是(shi)(shi)(shi)否(fou)(fou)(fou)連接良好。如果松(song)(song)動(dong)，請重新擰緊。壓縮機(ji)(ji)接線(xian)(xian)(xian)處(chu)使用的(de)(de)扭矩(ju)為(wei)500kg cm。由于(yu)主(zhu)機(ji)(ji)的(de)(de)長途運輸(shu)和吊(diao)裝，螺釘可能會松(song)(song)動(dong)。否(fou)(fou)(fou)則可能會損壞主(zhu)機(ji)(ji)控制柜和壓縮機(ji)(ji)內的(de)(de)電(dian)氣(qi)(qi)元件(jian)（如空氣(qi)(qi)開關、交(jiao)流(liu)接觸器(qi)等）。用萬(wan)用表(biao)仔細檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)所有(you)電(dian)路，看(kan)接線(xian)(xian)(xian)是(shi)(shi)(shi)否(fou)(fou)(fou)正確(que)；用兆歐測量，確(que)保外(wai)殼沒有(you)短路；檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)接地線(xian)(xian)(xian)是(shi)(shi)(shi)否(fou)(fou)(fou)正確(que)安(an)裝，對地絕緣電(dian)阻是(shi)(shi)(shi)否(fou)(fou)(fou)大(da)于(yu)2MΩ；檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)電(dian)源(yuan)線(xian)(xian)(xian)是(shi)(shi)(shi)否(fou)(fou)(fou)滿足容(rong)量要求(qiu)。檢(jian)(jian)(jian)查(cha)(cha)(cha)(cha)是(shi)(shi)(shi)否(fou)(fou)(fou)在設備的(de)(de)電(dian)源(yuan)線(xian)(xian)(xian)上(shang)安(an)裝了斷路器(qi)。

    控(kong)制(zhi)(zhi)(zhi)柜內主電(dian)(dian)路的所(suo)有(you)接(jie)線(xian)和控(kong)制(zhi)(zhi)(zhi)電(dian)(dian)路的外部接(jie)線(xian)在通(tong)電(dian)(dian)前都應對(dui)照接(jie)線(xian)圖進行全面檢(jian)查(cha)（如曲軸箱油加熱(re)器(qi)(qi)接(jie)線(xian)、壓(ya)縮機電(dian)(dian)子(zi)保(bao)護(hu)器(qi)(qi)、循環水溫度傳感器(qi)(qi)、目標流量開關(guan)、水泵聯(lian)合(he)控(kong)制(zhi)(zhi)(zhi)等）；檢(jian)查(cha)端子(zi)螺(luo)栓是否緊固無松(song)動。檢(jian)查(cha)電(dian)(dian)控(kong)儀表、電(dian)(dian)器(qi)(qi)是否安裝(zhuang)正(zheng)確、完整、有(you)效(xiao)，電(dian)(dian)控(kong)柜內外，特別是各點接(jie)線(xian)口是否清潔、無雜(za)物。檢(jian)查(cha)以上(shang)各項(xiang)后(hou)，當控(kong)制(zhi)(zhi)(zhi)柜通(tong)電(dian)(dian)時，電(dian)(dian)源指(zhi)示(shi)燈亮(liang)。這時，油加熱(re)器(qi)(qi)開始(shi)工(gong)作。觀察(cha)相序(xu)(xu)保(bao)護(hu)器(qi)(qi)是否正(zheng)常(chang)。如果(guo)相序(xu)(xu)保(bao)護(hu)器(qi)(qi)正(zheng)常(chang)（綠燈亮(liang)），閉(bi)合(he)控(kong)制(zhi)(zhi)(zhi)柜內的單*開關(guan)（QF2），控(kong)制(zhi)(zhi)(zhi)電(dian)(dian)路開始(shi)工(gong)作。觸摸屏（文字顯示(shi)）和PLC控(kong)制(zhi)(zhi)(zhi)器(qi)(qi)全部投(tou)入運行。