該大(da)型煉(lian)油化工(gong)企業(ye)選用(yong)廣州智光電(dian)(dian)氣股份有限公(gong)司的“相(xiang)控(kong)消弧線圈(quan)+主動式擾動法選線”方案：在總(zong)變電(dian)(dian)站(zhan)兩(liang)段母線各加裝(zhuang)(zhuang)一套(tao)KD-XH01-400/6.3型消弧線圈(quan)成套(tao)裝(zhuang)(zhuang)置，總(zong)變電(dian)(dian)站(zhan)及5個6kV分變電(dian)(dian)站(zhan)，共安裝(zhuang)(zhuang)6套(tao)DDS型選線裝(zhuang)(zhuang)置，可實(shi)現上、下級變電(dian)(dian)站(zhan)各線路單相(xiang)接地故障的精準定(ding)位(wei)。