Experimental study of pollution and simulation on insulators using COMSOL® under AC voltage

The knowledge of the behavior of both the electric potential and electric field is one of the main factors needed when designing an insulator. Using AutoCAD software a 2D cap and pin 1512L insulator model was created in the clean state and under pollution from one to five insulators separately making a chain of insulators for a total of 10 models. Later they are imported to COMSOL Multiphysics 5.6 software, simulations of the 1512L insulator were made to see the effect the pollution has and the differences that occur on the distribution with the addition of more insulators in the chain. The potential distribution starts to develop a pattern after a certain number of insulators in the chain while the pollution induces high value spikes in the field distribution. Finite-element-analysis for numerical simulation of the pollution effect in outdoor insulators: a review and a novel method.

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“…The electric potential allows the calculation of the electric field through the following equation: [13][14]]…”

Section: Design Of the Modelmentioning

confidence: 99%

Finite element modeling for electric field and voltage distribution along the cap and pin insulators under pollution

Ghermoul¹,

Benguesmia²,

Benyettou³

2023

Diagnostyka

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“…The gradient of the electric potential distribution is then used to measure the electric field distribution. The E-field calculation can be carried out as follows [23][24][25][26][27] E = −∇V (1) From Maxwell's equation:…”

Section: Governing Equationsmentioning

confidence: 99%

“…The calculation of the electric field distribution along an insulator can be effectively performed using various numerical analytic techniques, including the finite element method (FEM) and boundary element method (BEM) [27]. Due to its ability to handle complex geometries and regions, the FEM is highly recommended for such analyses.…”

Section: Characteristics Of Insulation Model In Comsol Multi-physics ...mentioning

confidence: 99%

Case Study: Optimizing Grading Ring Design for High Voltage Polymeric Insulators in Power Transmission Systems for Enhanced Electric Field and Voltage Distribution by Using a Finite Element Method

Aziz,

Aouabed,

Abdellah

et al. 2023

Energies

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This research paper aims to investigate the optimal design of grading rings for high-voltage polymeric insulators in an actual power transmission system, with a focus on improving the electrical representation of the insulator strings. One such subsidiary accessory commonly used with porcelain and polymer insulator strings is the grading ring, which is employed to improve the electric field and voltage distribution surrounding the insulator string. The efficiency of insulator strings can be enhanced by grading rings, as they facilitate a more linear potential division along the strings. The design parameters of grading rings significantly influence their performance on insulator strings. In this study, we examine the optimal design of the grading rings of high-voltage polymer insulators, since no uniform design methodology has been developed for high-voltage polymer insulators, and their optimization is currently the subject of many research studies. The electric field on an outdoor polymeric insulator is examined using finite element method (FEM) software and COMSOL Multi-Physics program. A 2D model is utilized to simulate a 220 kV polymeric insulator. The effectiveness of high-voltage polymeric insulators greatly depends on the dimensions and locations of the grading rings. Therefore, the impacts of the radius of the grading ring and that of its tube and the tube’s vertical position are thoroughly investigated, under dry and humid conditions. To achieve this objective, a search algorithm is employed to adjust the dimensions and locations of the grading ring. The optimization approach in this study is based on determining the maximum electric field across the insulator surface, while ensuring that it remains below the corona initiation level.

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Development and modeling of LED indicator of high voltage insulator status

Balobanov

Amirov

Razina

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The article discusses a non-contact method for monitoring the state of high-voltage insulation. The principle of operation of circuits of devices built using various electronic components is described. The results of modeling the operation of the device in the software complex of finite element modeling COMSOL Multiphysics are presented. The modeling was carried out by constructing and analyzing three-dimensional models of insulators of the LK70/35 and LK 70/110 brands with indicators installed on them. The presented method of insulation control will allow, during visual inspection of overhead lines, to additionally receive information about the change in the electric field and the appearance of partial discharges in the insulation. The main results of this article are the determination of the parameters and requirements for the electronic components of the considered circuits of indicators of the state of high-voltage insulators.

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Experimental study of pollution and simulation on insulators using COMSOL® under AC voltage

Cited by 7 publications

References 16 publications

Finite element modeling for electric field and voltage distribution along the cap and pin insulators under pollution

Finite element modeling for electric field and voltage distribution along the cap and pin insulators under pollution

Case Study: Optimizing Grading Ring Design for High Voltage Polymeric Insulators in Power Transmission Systems for Enhanced Electric Field and Voltage Distribution by Using a Finite Element Method

Development and modeling of LED indicator of high voltage insulator status

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