Analysis of Lightning Disruption Reduction in HVAD Tower 70 kV Parallel Inductance Grounding using NA2XSY Cable in West Java
DOI:
https://doi.org/10.31963/intek.v7i1.2092Abstract
The Sumadra - Pameungpeuk region has an uneven geographical location because it is traversed by mountains and beaches and has a high level of ISO Keraunic which causes many lightning strikes to occur in this region. The disturbance caused by lightning strikes is very worrying because it can disrupt the stability of electric power in West Java, Integrated Service Unit (ISU) Cirebon region in particular and can harm consumers as users of electricity. To minimize the disruption caused by lightning strikes in this study using the parallel mounting inductance method using NA2XSY cable. This study aims if there is a lightning strike on the GSW wire it can be immediately properly grounded. NA2XSY cable was chosen as direct grounding because the inductance value on the cable is smaller than the inductance value on the tower so that when NA2XSY cable is paralleled with the body tower it produces a low parallel inductance value so that it is expected to minimize the occurrence of back flashover due to the induction voltage resulting in the flash isolator. The results showed the lowest tower resistance value in the Sumadra-Pameungpeuk region of 0.21 ohms is located at tower number 77 and the highest resistance is 4.3 ohms at tower numbers 49 feet A and D, this meets PLN's standard of <5 ohms. Parallel inductance installation succeeded in reducing the disturbances caused by lightning, namely, in January-July 2018 the disruption occurred 4 times and in January - July 2019 became 2 times the disturbance.References
Zoro, R., Tropical Lightning Current Parameters and Protection of Transmission Lines. Volume 11, Number 3, September 2019
Woodworth, J., Protection Of Transmission Lines Using Externally Gapped Line Arresters (EGLA). 2015.
Pungsiri, B. and S. Chotigo. Design and Construction of Grounding System in High Voltage laboratory at KMUTT. in 2008 International Conference on Condition Monitoring and Diagnosis. 2008.
Datsios, Z.G., et al. Safety Performance Evaluation of Fence Grounding Configurations in High Voltage Installations. in 2014 49th International Universities Power Engineering Conference (UPEC). 2014.
Xiang, P. and S. Ping. Investigation of the Analysis Methods for Intermittent Arc Grounding Overvoltage. in 2012 International Conference on High Voltage Engineering and Application. 2012.
Yusu, W., et al. Influence of Grounding Mode on Surge Voltage in The Process of Pantograph Rising for High Speed Train. in 2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE). 2016.
Deng, L., et al., Modeling and Analysis of Parasitic Capacitance of Secondary Winding in High-Frequency High-Voltage Transformer Using Finite-Element Method. IEEE Transactions on Applied Superconductivity, 2018. 28(3): p. 1-5.
Probert, S., et al., Review of The Basic Insulation Level for 400 kV Oilâ€Filled Cable Systems: Switching and Temporary Overvoltages (TOV). European Transactions on Electrical power, 2003. 13(5): p. 277-283.
Abduh, S., Fenomena Petir (Lightning Phenomena). Universitas Trisakti Jakarta, 2004.
Nurwidi., B., Petir (Lightning) PLN Edisi Kedua PLN Research Institute, Jakarta 2018.
Nhat, C.H.V. and S.T. Minh. Influential Parameters in Lightning Current Passing A Grounding System of High Voltage Substation. In 2012 10th International Power & Energy Conference (IPEC). 2012.
Modeer, T., S. Norrga, and H. Nee, High-Voltage Tapped-Inductor Buck Converter Utilizing an Autonomous High-Side Switch. IEEE Transactions on Industrial Electronics, 2015. 62(5): p. 2868-2878.
Ghania, S.M. Optimum Design of Grounding System Inside High Voltage Substations for Transient Conditions. In 2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE). 2016.
