... Line Capacity Actual Units Produced(Previous Year) Wind turbine, SF6 CB, Outdoor disconnect switch, Outdoor AC VCB USD 30, ... , high-voltage load break switch combined fuse, high-voltage cable conjunction box; 252Kv and below disconnect switch and earthing switch ... system; DC power supply panel; 40.5kV and below oil-immersed power transformer; 126kV and below gas-insulated switchgear (GIS) 2010/06/28 ...