Investigation of the Electrical Field Distribution Along the Non-Ceramic Insulator with and without Corona Ring

Vinesh Thiruchelvam; Darnesh Pannirselvam

doi:10.15866/iree.v12i6.13147

Investigation of the Electrical Field Distribution Along the Non-Ceramic Insulator with and without Corona Ring

Vinesh Thiruchelvam^(1*), Darnesh Pannirselvam⁽²⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/iree.v12i6.13147

Abstract

Application of corona rings to insulators on High Voltage Transmission lines has become a very significant research in this era as it aids in the reduction and balancing of the electric field at the energized end of the insulator. Presently, non-ceramic insulators are commonly being used due to its encouraging properties compared to the ceramic insulators. The system will be beneficial as it avoids any breakdown or failures to transmission lines. The methodology applied on to this system is the Finite Element Method (FEM) which is used to identify the electric field using the COMSOL multi physics software. The optimum position of the corona ring will be identified by manipulating three main parameters which are the radius, height and distance to reduce the electric field at the energized end. Additionally, the system focuses on 132kV Transmission Lines as is it the commonly used voltage rating. By applying the methodology as mentioned, an average percentage reduction of 59% was achieved when the corona ring is present.
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Keywords

Finite Element Method (FEM); Non-Ceramic Insulator; Corona Ring

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