Analysis of the Soiling System on Peatland at the Distribution Substation of PT PLN (Persero) ULP Bagan Siapi Api
Keywords:
Peatland, Grounding, Fall-of-Potential, PUIL 2011Abstract
The grounding system is an important component in the reliability and safety of the electric power distribution system. This study aims to analyze the performance of the grounding system at the distribution substation owned by PT. PLN (Persero) ULP Bagan Siapi Api, especially on peatland. The data collection method was carried out by measuring the grounding resistance using the Fall-of-Potential method with a Digital Earth Tester. The study was conducted on two types of soil, namely peatland and barren land, to compare their resistance values. The measurement results showed that peatland has a very low resistance, with an average of 1.25 Ω using a single electrode (single rod), far below the maximum limit set by the 2011 PUIL standard of 5 Ω. Meanwhile, the barren land showed a high resistance (14.30 Ω) which could only be reduced to meet the standard by adding electrodes in parallel. These findings conclude that the peatland in the Bagan Siapi Api area actually supports an effective and efficient grounding system, contrary to the general assumption that peatland has a high resistance. These results can be the basis for making technical policies for installing grounding systems in similar areas.
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