Determination of the striking distance of a lightning rod using finite element analysis

Bakar, Ab Halim Abu; Abidin, Alyaa Zainal; Illias, Hazlee Azil; Mokhlis, Hazlie; Halim, Syahirah Abd; Hassan, Nor Hidayah Nor; Tan, Chia Kwang

doi:10.3906/elk-1311-175

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…Since the size of the triangular elements has substantial effect on the simulation time, the size of the triangular elements used was normal for air, finer for all domains of the model except for ZnO, which is extremely fine because it is the important element of the model. While constraining the potential on edges, it can produce a current outflow that is mesh-dependent [26][27][28][29]. The meshing elements of the surge arrester are shown in Figure 4.…”

Section: Finite Element Analysis (Fea) Leakage Current Modelmentioning

confidence: 99%

Measurement and Modelling of Leakage Current Behaviour in ZnO Surge Arresters under Various Applied Voltage Amplitudes and Pollution Conditions

et al. 2018

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In zinc oxide (ZnO) surge arresters, leakage current usually flows across the arrester under normal operating condition. Leakage current is one of the factors which contribute towards degradation of surge arresters and therefore, it is very important to monitor the condition of surge arrester. In this work, the behaviour of leakage current in a ZnO surge arrester during normal operation, under different voltage amplitudes, wetness and pollution conditions was analysed. An 11 kV surge arrester model in three-dimensional space was subjected to finite element analysis (FEA) to determine the leakage current under different conditions. The results from the FEA model were compared with the measurement results to validate the model that has been developed. From comparison between the measurement and simulation results, physical parameters of a surge arrester that influence the leakage current under different conditions of the surge arrester were identified from the model. Through this work, a better understanding of leakage current behaviour can be attained, which may help in condition monitoring analysis on surge arrester in electrical utilities.

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Section: Finite Element Analysis (Fea) Leakage Current Modelmentioning

confidence: 99%

Measurement and Modelling of Leakage Current Behaviour in ZnO Surge Arresters under Various Applied Voltage Amplitudes and Pollution Conditions

et al. 2018

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“…The assumptions made used to develop the model Corona ring design for composite insulator are the surface of the insulator string is clean, the overall model is surrounded by air at atmosphere pressure and the calculation is independent of temperature. The equation for solving the electric potential distribution in the 3D model is (Bakar et al, 2016;Illias et al, 2015):…”

Section: Kv Non-ceramic Insulator and Corona Ring Modelmentioning

confidence: 99%

Optimisation of corona ring design for composite insulator strings

Aramugam

Illias

Ching

2019

COMPEL

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Purpose The purpose of this paper is to propose an optimum design of a corona ring for insulator strings using optimisation techniques, which are gravitational search algorithm (GSA) and imperialist competitive algorithm (ICA). Design/methodology/approach An insulator string model geometry with a corona ring was modelled in a finite element analysis software, and it was used to obtain the electric field distribution in the model. The design was optimised using GSA and ICA. The variables were the corona ring diameter, ring tube diameter and vertical position of the ring along the insulator string. Findings Using optimisation method, the minimum electric field magnitude on the insulator string with a corona ring design is lower than without using optimisation method. GSA yields better results than ICA in terms of the optimised corona ring design. Practical implications The proposed methods can help in improvement of corona ring design in reducing the electric field magnitude on the energised end of insulator strings. Originality/value A new method to design an optimum corona ring for insulator strings, which is using optimisation methods, has been developed in this work.

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Comparison of various receivers in wind turbines for the Lightning Protection system

Abdelbari

Mimouni

2022

2022 2nd International Conference on Advanced Electrical Engineering (ICAEE)

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Determination of the striking distance of a lightning rod using finite element analysis

Cited by 5 publications

References 21 publications

Measurement and Modelling of Leakage Current Behaviour in ZnO Surge Arresters under Various Applied Voltage Amplitudes and Pollution Conditions

Measurement and Modelling of Leakage Current Behaviour in ZnO Surge Arresters under Various Applied Voltage Amplitudes and Pollution Conditions

Optimisation of corona ring design for composite insulator strings

Comparison of various receivers in wind turbines for the Lightning Protection system

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