通(tong)(tong)過(guo)視頻(pin)指導讓(rang)現場工(gong)(gong)作人員(yuan)測量機(ji)柜內部的(de)信號(hao)電(dian)(dian)(dian)流(liu)，電(dian)(dian)(dian)流(liu)一直到出信號(hao)隔(ge)離器(qi)都(dou)為(wei)(wei)正常，但(dan)是通(tong)(tong)過(guo)4017模塊(kuai)后，電(dian)(dian)(dian)流(liu)異常增大。隨后讓(rang)現場工(gong)(gong)作人員(yuan)登陸工(gong)(gong)控機(ji)進入運維管理，查看4017模塊(kuai)的(de)采(cai)集電(dian)(dian)(dian)壓，全部為(wei)(wei)0，此時判(pan)斷4017模塊(kuai)損壞。為(wei)(wei)了(le)進一步確認，讓(rang)現場工(gong)(gong)作人員(yuan)把氣體分析儀的(de)232傳(chuan)輸線(xian)插到工(gong)(gong)控機(ji)上，此時工(gong)(gong)控機(ji)SO2 NO O2數(shu)(shu)值恢復正常，其余數(shu)(shu)值還(huan)處于異常狀態。因232傳(chuan)輸線(xian)不經過(guo)4017模塊(kuai)，此時確定4017損壞。