Talking about the improvement on local ground pole;

Design of grounding electrode feeder system of Three Gorges Longquan Converter Station;

Based on the equivalence of steady current field and static electric field, for the two common forms of horizontal linear grounding electrode and parallel vertical grounding electrode, a new method is presented to calculate the non-uniform of current distribution in two kinds grounding electrode, and the rule of current distribution in grounding electrode is discussed.

In view of the corrosion of underground metal components caused by the grounding electrode of HVDC power transmission project, the features of electro-corrosion are analyzed and the limit values of corrosion to grounding metal components are determined.

The effectivity and merit of slanting grounding electrode on improving grounding grid performance are analyzed in this paper by comparing the effect of all kinds of grounding electrode.