SISTEM PEMBUMIAN GARDU INDUK HEMAT ELETRODA

Abstract

The grounding resistance can be determined when planning grounding system. Grounding resistance will be
depended on the length of electrodes and the low resistance will effect the mesh voltage. This study aims to determined
grounding systems is used a minimum electrodes at a level of security that is closed to the same. Is this study as a
sampel is Tallo Makassar substation with size 53 cm x 39m and the soil resistivity 100 ohm.m. Calcullation is done by
simple regression with the grid, grid-rod and grid unequally spaced systems and this result analized by quantitative and
qualitative methods. The results of the calcullation and analysis obtained are that the order of the grounding system the
saves or minimm the electrode is : a). Grid uneqully spaced, 463 volts mesh voltage with 722 m electrode length b). grid
system 522 vlts mesh voltage with 1422 m electrode length and c) grid-rod system 461 volts mesh voltages with 1578 m
electrode length.