TY - GEN
T1 - Breakdown voltage estimation of insulator string at electrical tower transmission for different lightning strike
AU - Facta, Mochamad
AU - Ifada, Ulfi
AU - Hermawan,
AU - Umiati, Ngurah Ayu Ketut
AU - Fomba, Ahmed Jumui Sumoi
AU - Rakhmawan, Agung
N1 - Publisher Copyright:
© 2023 Author(s).
PY - 2023/6/2
Y1 - 2023/6/2
N2 - A transmission line is a vital backbone for electrical power delivery. Most of the electrical transmission in Java and Bali, Indonesia is dominated by a 150kV transmission line network. Java and Bali are considered volcanic islands, so the number of lightning strokes to the transmission line is more than two million every year. It was recorded that negative lightning stroke was dominated 93.03% of the lightning faults and positive lightning stroke took 6.97% of faults. A fault caused by direct lightning stroke to tower transmission may cause an electrical shutdown, so it is interesting to make an estimation of voltage breakdown at insulation string installed on the tower as lightning hits the ground wire on the top of the tower. This paper proposes the use of a tower model adapting the insulator string model attached to the surge impedance of tower transmission. The implementation of several different lightning waveforms to hits the tower model during simulation is aimed to calculate the maximum amplitude of voltage along the insulator string. If the voltage peak is above the critical flashover voltage of the insulator, then back flashover occurs and initiates the ground fault. The results and analysis of breakdown voltage obtained from this work give significant information to improve the performance of insulation string at electrical tower transmission.
AB - A transmission line is a vital backbone for electrical power delivery. Most of the electrical transmission in Java and Bali, Indonesia is dominated by a 150kV transmission line network. Java and Bali are considered volcanic islands, so the number of lightning strokes to the transmission line is more than two million every year. It was recorded that negative lightning stroke was dominated 93.03% of the lightning faults and positive lightning stroke took 6.97% of faults. A fault caused by direct lightning stroke to tower transmission may cause an electrical shutdown, so it is interesting to make an estimation of voltage breakdown at insulation string installed on the tower as lightning hits the ground wire on the top of the tower. This paper proposes the use of a tower model adapting the insulator string model attached to the surge impedance of tower transmission. The implementation of several different lightning waveforms to hits the tower model during simulation is aimed to calculate the maximum amplitude of voltage along the insulator string. If the voltage peak is above the critical flashover voltage of the insulator, then back flashover occurs and initiates the ground fault. The results and analysis of breakdown voltage obtained from this work give significant information to improve the performance of insulation string at electrical tower transmission.
UR - http://www.scopus.com/inward/record.url?scp=85163289577&partnerID=8YFLogxK
U2 - 10.1063/5.0140376
DO - 10.1063/5.0140376
M3 - Conference contribution
AN - SCOPUS:85163289577
T3 - AIP Conference Proceedings
BT - 11th International Seminar on New Paradigm and Innovation on Natural Sciences and Its Application, ISNPINSA 2021
A2 - Soesanto, Qidir Maulana Binu
A2 - Bima, Damar Nurwahyu
A2 - Prasetya, Nor Basid Adiwibawa
A2 - Sugito, Heri
A2 - Maulidiyah, Alik
PB - American Institute of Physics Inc.
T2 - 11th International Seminar on New Paradigm and Innovation on Natural Sciences and Its Application: Developing Science and Technology Toward the New Normal Era, ISNPINSA 2021
Y2 - 14 October 2021 through 15 October 2021
ER -
