Fault and secondary strikes to power system may occur when the reclosing devices for traditional transmission lines blindly reclose without identifying fault characteristic. The existing studies of fault characteristic identification based on electric parameters cannot adapt to three-phase reclosure of transmission lines without shunt reactor because the electric parameters will damp quickly after its three-phase tripping. Therefore

we proposed an adaptive three-phase reclosing scheme of transmission lines in the absence of shunt reactors using additional capacitors. The status of transmission line was tested through the discharging（charging） current of additional capacitors installed at one end of the transmission line.The arc extinguish time and fault characteristic were determined by cycle judgment. Theoretical analysis and simulation based on PSCAD/EMTDC verify that the proposed transmission line adaptive three-phase reclosing scheme can identify the fault characteristic accurately under various kind of transmission line faults

is not influenced by transition resistance and fault location

and recloses reliably afterwards.