| Title |
Research on Grounding Design using Distribution Line Impedance and Lattice Plate Electrodes |
| Authors |
김규원(Gyu-Won Kim) ; 지평식(Pyeong-Shik Ji) |
| DOI |
https://doi.org/10.5370/KIEEP.2023.72.4.250 |
| Keywords |
Distribution line impedance; Lattice grounding electrode; deep grounding electrode; Ground electrode impedance |
| Abstract |
This paper studied effective grounding design methods according to the application of distribution line impedance. It has been proven that the construction cost and grounding area can be reduced and economic feasibility improved by calculating and reflecting the ground fault current at the customer's actual receiving point rather than the theoretical maximum value as the fault current standard during grounding design. In addition, when this method was adopted, a Lattice ground plate that satisfied KEC was applied to the mesh ground electrode to compensate for the increase in transient impedance due to the reduced ground electrode area. It has been shown to be effective in improving the transient grounding impedance of the mesh grounding system compared to the increase in construction cost, and is believed to be applicable to the mesh grounding method currently being designed and constructed. |