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Design and Analysis of Extra High Voltage Non-Ceramic Insulator by Finite Element Method

Authors: M. Nageswara Rao, V. S. N. K. Chaitanya, P. Pratyusha


High voltage insulator has to withstand sever electrical stresses. Higher electrical stresses lead to erosion of the insulator surface. Degradation of insulating properties leads to flashover and in some extreme cases it may cause to puncture. For analyzing these electrical stresses and implement necessary actions to diminish the electrical stresses, numerical methods are best. By minimizing the electrical stresses, reliability of the power system will improve. In this paper electric field intensity at critical regions of 400 kV silicone composite insulator is analyzed using finite element method. Insulator is designed using FEMM-2D software package. Electric Field Analysis (EFA) results are analyzed for five cases i.e., only insulator, insulator with two sides arcing horn, High Voltage (HV) end grading ring, grading ring-arcing horn arrangement and two sides grading ring. These EFA results recommended that two sides grading ring is better for minimization of electrical stresses and improving life span of insulator.

Keywords: Polymer insulator, electric field analysis, numerical methods, finite element method, FEMM-2D.

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[1] B. M'hamdi,“Optimal design of corona ring on HV composite insulator using PSO approach with dynamic population size,” IEEE Transactions on Dielectrics and Electrical Insulation Vol. 23, No. 2,pp.1048-1057, April 2016
[2] D Harimurugan, “A comparative study of field computation methods: Charge simulation method and method of moments,” 2018 International Conference on Power, Signals, Control and Computation (EPSCICON), ISBN: 978-1-5386-4208-5,Jan 2018.
[3] M. Nageswara Rao, “Electric Field Analysis of Polymer Insulators for Various Geometrical Configurations,” IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI-2017), ISBN: 978-1-5386-0814-2, pp.1722-1727, Sep 2017.
[4] IEC -61109 “Insulators for Overhead Lines Composite Suspension and Tension Insulators for A.C. Overhead Lines with a Nominal Voltage Greater Than 1 000 V Definitions, Test Methods and Acceptance Criteria,” 2008.
[5] IS -731 “Specification for Porcelain Insulators for Overhead Power Lines With A Nominal Voltage Greater Than 1000 V,” 2001.
[6] IEC -60383-2 “Insulators for Overhead Lines with a Nominal Voltage Greater Than 1000 V Definitions, Insulator string and Insulator sets for A.C system test Methods and acceptance criteria,” 1993.
[7] M. Nageswara Rao, “Design of corona mitigation device and application of ZnO microvaristor on 66kV insulators by finite element method,” IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI-2017), ISBN: 978-1-5386-0814-2, pp.1047-1051, Sep 2017.
[8] V.S.N.K. Chaitanya, “Electric field analysis and experimental evaluation of 400kV Silicone composite insulator”, International Journal Electrical computer Energetic Electronic and Computer Engineering, vol. 10, no. 7, pp. 484-487, 2016.
[9] Ravi S. Gorur “Charge Simulation Based Electric Field Analysis of Composite Insulators for HVDC Lines,” IEEE Transactions on Dielectrics and Electrical Insulation., vol. 21, no. 6, pp.2541- 2548, Dec. 2014.
[10] Zongren Peng, “Electric Field Calculation and Grading Ring Optimization of Composite Insulator for 500kV AC Transmission Lines,” International Conference on Solid Dielectrics, Potsdam, Germany, pp.1-4, July. 2010.
[11] Rahul Krishnan “Electric Field Analysis of High Voltage Insulators,” International Journal of Computer Science and Informatics. ISSN:2231-5292, vol. 1, Iss.4, pp.31-35, 2012.
[12] Xingliang Jiang, “AC Flashover Performance of Porcelain, Glass and Polymeric Insulators at High Altitudes,” IEEE 11thInternational Conference on the Properties and Applications of Dielectric Materials, pp. 376-385, 2015.
[13] G. Haddad, “Evaluation of the aging process of composite insulator based on surface characterization techniques an die electrical method,” IEEE Transaction on Dielectrics and electrical Insulation, vol. 23, no.1, pp. 732-737, Feb 2016.
[14] R. Add-Rahman, “Stress Control on polymeric outdoor insulators using zinc oxide microvaristor composites,” IEEE Transaction on Dielectrics and electrical Insulation, vol. 19, no.2, pp. 705-713, April 2012.