Effect of Corona Ring Design and Placement on the Distribution of Electric Fields on 500 kV Gantry Substation in Indonesia
Abstract
High electric field intensity in string isolators can trigger corona which results in premature aging of the insulator. One solution to overcome this problem is by installing the corona ring, the corona ring will uniform the electric field distribution of the insulator adjacent to the conductor. However, the dimensions and placement of the corona ring will affect the performance of the corona ring in distributing the electric field. therefore, this study will discuss the effect of dimensions and placement of the corona ring on the electric field distribution. Parameters observed were ring length, ring angle and height of corona ring. Simulation with the finite element method (FEM) is used to model the electric field distribution value for each parameter change. As a comparison, changes in corona ring parameters compared to the corona ring design are commonly used in 500 kv gantry substation in Indonesia.
Keywords: Corona ring, Electric field distribution, Finite element method (FEM), Insulator string, Porcelain Insulator.
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} B. M'hamdi, M. Teguar, A. Mekhaldi, "Optimal design of corona ring on HV composite insulator using PSO approach with dynamic population size", IEEE Trans. Dielectr. Electr. Insul., vol. 23, no. 2, pp. 1048-1057, Apr. 2016
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”, Iranian J. Electr. Electron. Eng., Vol. 9, pp. 58–66, 2013.
S. Ilhan, A. Ozdemir “Effects of Corona Ring Design upon Impulse
Voltage Withstand Level of 380 kV V-Strings”, IEEE Trans. Dielectr.Electr. Insul., Vol. 18, No. 5, pp. 1638-1646, 2011.
J. Du, Z. Peng, J. Li, S. Zhang, N. Li and C. Fan “Electric Field Calculation and Grading Ring Optimization for 1000 kV AC Post
Porcelain Insulator”, IEEE Conf. Solid Dielectr., Bologna, Italy, pp.
-201, 2013.
Ohio Brass Catalog 24 ,http://www.hubbellpowersystems.com
A. Phillips, A. Maxwell, C. Engelbrecht and I. Gutman, “ElectricField Limits for the Design of Grading Rings for Composite Line Insulators”, IEEE Trans. Power Delivery Vol. 30, No. 3, pp. 1110-1118, 2015.
S. Zhang, Z. Peng, L. Peng and H. Wang, “Optimization of CoronaRing Structure for UHV Composite Insulator Using Finite Element Method and PSO Algorithm”, IEEE Conf. Solid Dielectr., Bologna, Italy, pp. 210-213, 2013.
T. Doshi, R. S. Gorur and J. Hunt, “Electric Field Computation of Composite Line Insulators up to 1200 kV AC”, IEEE Trans. Dielectr. Electr. Insul., Vol. 18, No. 3, pp. 861- 867, 2011.
SPLN 10 - 1A : 1996.
R. Anbarasan and S. Usa Electrical Field Computation of Polymeric Insulator using Reduced Dimension Modeling”, IEEE Trans. Dielectr Electr. Insul., Vol. 22, No. 2, pp. 739-746, 2012.
MacLean Power System, http://www. macLeanpower.com
Ashouri, M., Mirzaie, M. and Gholami, A., "Calculation of Voltage Distribution along Porcelain Suspension Insulators Based on Finite Element Method" Journal of Electric Power Components and Systems, Vol. 38, pp. 820-831, May 2010.
Zhang Ziyang, Zhao Yanzhen, Li Hualiang, Ma Xikui, "Voltage distribution along glass insulator strings for 1000 kV ultra high voltage transmission lines", East China Electric Power, vol. 35, pp. 29-31, June 2007.
L. Jintao, P. Zongren, Z. Shiling, "Electric-field calculation and grading ring design for 750 kV AC composite insulator", Solid Dielectrics (ICSD) 2013 IEEE International Conference on Bologna, pp. 206-209, July 2013.
DOI: https://doi.org/10.12962/j25796216.v2.i2.53
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