該大型(xing)煉油化工(gong)企業選用(yong)廣州智光電氣股(gu)份有(you)限公(gong)司的“相(xiang)控消弧線(xian)圈+主動式(shi)擾動法選線(xian)”方案：在總變電站兩段母線(xian)各加裝一套KD-XH01-400/6.3型(xing)消弧線(xian)圈成套裝置，總變電站及5個(ge)6kV分變電站，共(gong)安裝6套DDS型(xing)選線(xian)裝置，可實現(xian)上(shang)、下級變電站各線(xian)路單相(xiang)接地故障的精準定位。