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Lightning impulse strength of 275 kV and 132 kV tower with composite crossarm


Abd Rahman, Muhammad Syahmi and Ab Kadir, Mohd Zainal Abidin and Abd. Rahman, Muhamad Safwan and Osman, Miszaina and Mohd Nor, Shamsul Fahmi (2019) Lightning impulse strength of 275 kV and 132 kV tower with composite crossarm. In: 11th Asia-Pacific International Conference on Lightning (APL 2019), 12-14 June 2019, Hong Kong, China. .


Severe lightning overvoltage is regarded to the multiple flashovers on the overhead lines. Therefore, it signifies the needs of having a robust insulation system, especially to those which highly susceptible to lightning strikes. In order to minimize the impact of lightning, it is necessary to evaluate lightning performance of the tower and its components before implementing any proposed design. Therefore, in this work, a feasibility study was done on proposed 275 kV and 132 kV transmission tower with composite crossarm installed. In order to assess the insulation strength of the tower against the lightning activities, lightning caused events i.e. backflashover and shielding failure were applied onto the tower models by using FEM based software. The CFO of the tower insulation were calculated based on the design provided, whereby it was complementary verified by the voltage and electric field profiles of the simulation. For each case, none had shown a voltage magnitude higher than the voltage supposed to possibly cause 50% chance of flashover.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/APL.2019.8816041
Publisher: IEEE
Keywords: Composite crossarm; Tower insulation; ANSYS Maxwell; CFO
Depositing User: Nabilah Mustapa
Date Deposited: 15 Jun 2020 02:02
Last Modified: 15 Jun 2020 02:02
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/APL.2019.8816041
URI: http://psasir.upm.edu.my/id/eprint/78152
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