An Identification of Insulation Defects in HVDC XLPE Cable based on the Analysis of PD Detection

High Voltage Direct Current (HVDC) technology has many advantages over the traditional High Voltage Alternating Current (HVAC) due to its overall efficiency, high current carrying capability and small power losses over long distance transmission. Ascribed to these benefits, the demand for long-distance HVDC power transmission is increasing to interconnect power grids between land and islands or for wind farm, as most of the renewable energy resources are located far from urban cities. Therefore it is required to develop XLPE cable for HVDC grids with high reliability by considering insulation diagnosis to avoid unexpected failures. One of the diagnostic methods for power cables in AC grids is the detection of Partial discharge (PD) taking place inside the apparatus. For that PRPDA (Phase…