ANALYSIS OF IMPROVEMENT OF GROUNDING RESISTANCE VALUES TO PREVENT INTERFERENCE IN THE OLD CILEGON 150KV TRANSMISSION LINE MITSUI AT PT PLN (PERSERO) ULTG SURALAYA
DOI:
https://doi.org/10.47652/metadata.v7i2.622Kata Kunci:
Transmission Lines, Lightning Strikes, Grounding, Grounding Resistance Values, Grounding Repairs.Abstrak
The electric power transmission distribution system is a system that functions to channel electric power from the generator to the main substation, or substation with other substations that are close to the load center. One of these transmission distribution systems is overhead lines or overhead line systems. Transmission lines are vulnerable to disruption due to lightning strikes. Lightning strikes on transmission lines can be identified by the presence of flash marks on plating isolator and stringset. The tower itself has a protection system against lightning strikes, namely direct grounding or a direct grounding system and a grounding at the foot of the tower. To avoid interference with transmission lines, it is necessary to ensure that the resistance value of the grounding must be within the SPLN standard limit. The aim of this research is to determine the value of grounding resistance in transmission towers as well as how to improve the value of grounding resistance if it exceeds standard limits. The data collection method is through measuring the ground resistance value periodically using an earth tester, which can then be evaluated based on the applicable standard limits. The results of this evaluation can be used as a basis for carrying out improvements to the grounding. It is hoped that this grounding repair will minimize the possibility of disruption due to lightning strikes on transmission lines so that the electric power distribution system can run smoothly and reliably serve load centers and customers
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