Investigation of the Effect of Corona Ring Design Parameters on Electric Field Distribution by Finite Element Method

Year 2023, Volume: 3 Issue: 1, 20 - 27, 27.02.2023

Mete Uzar Yunus Berat Demirol , Mehmet Aytaç Çınar , Bora Alboyacı

https://doi.org/10.5152/tepes.2023.22031

https://izlik.org/JA63BX44HK

Abstract

Insulators and auxiliary equipment are used to provide electrical isolation in energy transmission. The high electric field distribution on composite insulators causes a decrease in hydrophobicity and increases the aging of the insulator over time. Corona rings are used to balance the electric field distribution on insulators. The corona rings used are designed according to thickness, diameter, and height parameters. In this study, the design parameters of the corona ring used in composite insulators are evaluated by finite element analysis. In this context, different types of corona rings were modeled in real scale in the computer environment and transferred to the Ansys Electronics Suite finite element software program. Analyses were performed with appropriate analysis settings and material definitions. Different design parameters were examined in the analysis, and the results were interpreted and shown in detail in the article. As a result, the necessity of system evaluation with finite element analyses in designing insulation systems used in energy transmission has been demonstrated.

Keywords

Composite insulator , corona ring , electric field , finite element analysis

References

• L. Lan, and R. S. Gorur, “Computation of ac wet flashover voltage of ceramic and composite insulators,” IEEE Trans. Dielect. Electr. Insul., vol. 15, no. 5, pp. 1346–1352, 2008.
• B. Alboyacı, M. A. Çınar, Y. B. Demirol, and A. İnce, “Evaluation of the effect of structural defects in the heat-shrink cable terminal on electric field distribution,” Eng. Fail. Anal., vol. 132, p. 105920, 2022.
• CIGRE Technical Brochure 284, “Use of corona rings to control the electrical field along transmission line composite insulators,” WG B2.03, 2005. Available: https://e-cigre.org/publication/284-use-of-corona-rings-to-control-the-electrical-field-along-transmission-line-composite-insulators
• A. J. Phillips et al., “Electric fields on AC composite transmission line insulators,” IEEE Trans. Power Deliv., vol. 23, no. 2, pp. 823–830, 2008.
• I. Gutman, J. Lundquist, V. Dubickas, L. Carlshem, and R. Kleveborn, “Design of corona/arcing rings when replacing cap-and-pin insulators by composite insulators,” XVII International Symposium on High Voltage Engineering, Hannover, Germany, August 22–26, 2011. Available: http://vlabs.iitkgp.ac.in/vhvlab/html/pages/CD/topics_a-h/A-007-GUT-F.pdf
• A. J. Phillips, A. J. Maxwell, C. S. Engelbrecht, and I. Gutman, “Electric-field limits for the design of grading rings for composite line insulators,” IEEE Trans. Power Deliv., vol. 30, no. 3, pp. 1110–1118, 2015.
• IEEE, IEEE Guide for Application of Composite Insulators, 2001.
• S. İlhan, and A. Özdemir, “380 kV corona ring optimization for AC voltages,” IEEE Trans. Dielect. Electr. Insul., vol. 18, no. 2, pp. 408–417, 2011.
• J. Li, Z. Peng, Y. Feng, X. Fu, and T. Xie, “Electric field calculation and grading ring optimization of composite insulator for 500 kV AC transmission lines,” in Proc. 2010 IEEE International Conference on Solid Dielectrics (ICSD), 2010, pp. 1–4.
• M. S. Kalimurugan, and R. V. Maheswari, “Investigation of electric field distribution on AC composite insulator using corona ring,” in ICIIECS 2015 – 2015 IEEE International Conference on Innovations in Information, Embedded and Communication Systems, 2015, pp. 1–6.
• B. M’Hamdi, M. Teguar, and A. Mekhaldi, “Optimal design of corona ring on HV composite insulator using PSO approach with dynamic population size,” IEEE Trans. Dielect. Electr. Insul., vol. 23, no. 2, pp. 1048–1057, 2016.
• S. İlhan, A. Özdemir, and H. İsmailoğlu, “Impacts of corona rings on the insulation performance of composite polymer insulator strings,” IEEE Trans. Dielect. Electr. Insul., vol. 22, no. 3, pp. 1605–1612, 2015.
• E. Akbari, M. Mirzaie, M. B. Asadpoor, and A. Rahimnejad, “Effects of disc insulator type and corona ring on electric field and voltage distribution over 230-kV insulator string by numerical method,” Iran. J. Electr. Electron. Eng., vol. 9, no. 1, pp. 58–66, 2013.
• B. Alboyacı, M. A. Çınar, Y. B. Demirol, and M. Uzar, “Reducing the failures with adding glass insulators to composite insulators of 400 kV transmission line at high altitude,” Eng. Fail. Anal., vol. 141, p. 106678, 2022.