Open access
Sep 2026
Analysis of VFTO and Its Mitigation in a GIS through Additional Earthing Grid
Very Fast Transient Overvoltages (VFTOs) are one of the major insulation stress phenomena encountered in Gas Insulated Substations (GIS). VFTOs are generated primarily during disconnector switching operations and are characterized by extremely steep wavefronts, high frequency oscillations, and short durations. These tr...
M. Prabhakar, V. Anil, I. Chandramouli et al.
· International Journal for Re... · 0 citations