Reliability Analysis of Aluminum Cable Steel Reinforced (Acsr) Conductors on the 275 Kv Nagan Raya - Sigli Transmission Line
Keywords:
ACSR Conductor Wire, 275 Kv Transmission Line Nagan Raya - SiglAbstract
Conductors are one of the important components of transmission lines that play a role in distributing electricity from power plants to substations and then to consumers. Conductors stretched between two transmission towers do not follow a straight line, but due to their own weight, they curve downward, which is called sag. The 275 kV Nagan Raya - Sigli Transmission Line passes through several cities and forests, so it is necessary to calculate the sag as well as the reliability and current carrying capacity (KHA) that can be accepted by the conductor and the maximum ambient temperature of 400C, so that the reliability value of the conductor used can be obtained. The method used in this study is a quantitative method. Line current and ambient temperature cause an increase in conductor temperature, resulting in conductor expansion and increased length, thereby increasing sag. However, the tensile stress on the conductor is inversely proportional to sag; every 10°C increase in temperature increases sag by 0.41% and reduces conductor tensile stress by 0.41%. The results of this study obtained a maximum sag of 8.80709 m, indicating that the reliability of the conductor in transmission and sag can still be considered satisfactory because the clearance between the conductor and objects below the conductor, as well as the conductor's resistance to temperature due to current flow, are still in good condition and in accordance with SNI 04-6918-2002.
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