SISTEM PEMBUMIAN GARDU INDUK HEMAT ELETRODA

Abstract

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