該(gai)大型煉油化工企業選(xuan)用(yong)廣(guang)州智光電(dian)(dian)氣股份有限公司(si)的(de)“相控消弧線圈+主(zhu)動式擾動法(fa)選(xuan)線”方案：在總(zong)變電(dian)(dian)站(zhan)(zhan)(zhan)兩段母線各(ge)加裝(zhuang)(zhuang)一(yi)套(tao)KD-XH01-400/6.3型消弧線圈成套(tao)裝(zhuang)(zhuang)置(zhi)，總(zong)變電(dian)(dian)站(zhan)(zhan)(zhan)及5個6kV分(fen)變電(dian)(dian)站(zhan)(zhan)(zhan)，共安裝(zhuang)(zhuang)6套(tao)DDS型選(xuan)線裝(zhuang)(zhuang)置(zhi)，可實現上、下(xia)級(ji)變電(dian)(dian)站(zhan)(zhan)(zhan)各(ge)線路(lu)單相接地故(gu)障的(de)精準定位。