該大型煉油化工企業選用廣州智光(guang)電(dian)(dian)(dian)氣股份有限(xian)公司的“相控(kong)消弧(hu)線(xian)圈(quan)+主動式擾動法選線(xian)”方案(an)：在(zai)總變(bian)(bian)電(dian)(dian)(dian)站(zhan)(zhan)兩段母(mu)線(xian)各加裝一(yi)套(tao)KD-XH01-400/6.3型消弧(hu)線(xian)圈(quan)成套(tao)裝置，總變(bian)(bian)電(dian)(dian)(dian)站(zhan)(zhan)及(ji)5個6kV分(fen)變(bian)(bian)電(dian)(dian)(dian)站(zhan)(zhan)，共安裝6套(tao)DDS型選線(xian)裝置，可實(shi)現上(shang)、下(xia)級變(bian)(bian)電(dian)(dian)(dian)站(zhan)(zhan)各線(xian)路單相接地(di)故障(zhang)的精(jing)準定位。