Complete active lightning protection grounding device for transformer substation in complex terrain

The invention belongs to the field of transformer substation lightning protection, and particularly relates to a complex terrain transformer substation active lightning protection grounding complete device which comprises a plasma lightning protection device which is fixed to the top end of a lightning protection support and electrically connected with the lightning protection support, and the lower end of the lightning protection support is connected with a grounding grid horizontal connecting line. A plurality of radioactive rays are led out from a horizontal connecting line of the earth screen, each radioactive ray is provided with a resistance reduction unit and a discharge unit, each resistance reduction unit comprises a resistance reduction body and an electrolytic ion system, pole cores in the resistance reduction bodies are connected through pole core supports, straight-bar flow diffusion supports are welded in the vertical direction of the pole core supports, and circular ring supports are welded to