HVDC system has charging current but no skin effect while transferring the power through it.

HVDC systems do have a charging current associated with the cables, especially when using long underground or undersea transmission lines, which can lead to significant reactive power and voltage drop issues. However, since DC does not alternate, there is no skin effect, which is a phenomenon observed in alternating current (AC) systems where the current tends to flow near the surface of conductors at higher frequencies. In summary, HVDC systems experience charging current, but the absence of skin effect is a distinguishing characteristic compared to AC systems.