The Electrical Behaviour of a Medium Voltage Polymer Insulator with Deposited Moss Layer on the Surface
F A Abd. Rahman1, M Izadi2, M Z A Ab. Kadir3, M Osman4
1F A Abd. Rahman, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia; Engineering Faculty, Politeknik Kota Kinabalu, Jalan Politeknik, KKIP Barat, Kota Kinabalu Industrial Park, Kota Kinabalu, Sabah
2M Izadi, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia; Electrical Department, Islamic Azad University, Firoozkooh Branch, Froozkooh, Iran
3M Z A Ab. Kadir, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia; Centre for Electromagnetic and Lightning Protection Research (CELP),Universiti Putra Malaysia, UPM, Serdang, Malaysia
4M Osman, Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia.
Manuscript received on November 20, 2019. | Revised Manuscript received on November 28, 2019. | Manuscript published on 30 November, 2019. | PP: 6409-6414 | Volume-8 Issue-4, November 2019. | Retrieval Number: D5149118419/2019©BEIESP | DOI: 10.35940/ijrte.D5149.118419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper presents a study on the voltage and electric fields behaviours of a 10kV polymer insulator with moss deposited under dry (air) condition. The aim of this study is considering on the electrical behaviour of insulator by having a surface layer of moss on it that can change the withstand voltage of insulators. It should be mentioned that these moss layers are commonly crated in the jungles especially in the tropical countries. To study on the above mentioned case, simulations were carried out using ANSYS High Frequency Structure Simulator (HFSS). The simulation insulator modelling includes the computerized evaluation of voltage and electric field distribution at three different locations for both clean and moss contaminated insulators. Noted that the electric field and also voltage profiles at different parts of insulators has been determined using applied simulated model. The moss contamination polymer insulator displayed a discontinuous distribution of the electric field compared to the clean insulator and their voltage distribution decreased with distances from the source. The results indicated that electric field along the insulator surface were greatly affected by hydrophobicity characteristic of the polymer. Therefore, the surrounding air of the moss contaminated insulator was prone to initiate a flashover. This study can be helpful for designing the distribution lines especially in high risk areas to set a proper design from the point of view of insulation coordination.
Keywords: Electric Feld, Polymer Insulator, Tropical Countries and Voltage.
Scope of the Article: Frequency Selective Surface.