Finite Element Analysis of Disc Insulator Type and Corona Ring Effect on Electric Field Distribution over 230-kV Insulator Strings

  • Authors

    • Ebrahim Akbari Department of ECE, Babol University of Technology, Babol, Iran
    • Mohammad Mirzaie Department of ECE, Babol University of Technology, Babol, Iran
    • Abolfazl Rahimnejad Department of ECE, Babol University of Technology, Babol, Iran
    • Mohammad Bagher Asadpoor Department of ECE, Babol University of Technology, Babol, Iran
    2012-09-07
    https://doi.org/10.14419/ijet.v1i4.330
  • Insulator strings are widely used in power systems for the dual task of mechanically supporting and electrically isolating the live phase conductors from the support tower. However, the electric field and voltage distribution of insulator string is uneven which may easily lead to corona, insulators’ surface deterioration and even flashover. So the calculation of the electric field and voltage distribution along them is a very important factor in the operation time. Besides, despite the variety of insulator material and profiles, no remarkable endeavor regarding their impacts upon electric field distribution has been made so far. In this paper, three-dimensional Finite Element Method (3-D FEM) software–Maxwell is employed to simulate several 230-kV insulator strings with various types of porcelain and glass disc insulators and the electric field along them were compared, to investigate the effect of insulator types on electric field distribution.

    Author Biographies

    • Ebrahim Akbari, Department of ECE, Babol University of Technology, Babol, Iran
      Ebrahim Akbari received the B.Sc. degree in electrical engineering from Birjand University, Birjand, Iran, in 2009. He is currently working toward M.Sc. degree of electrical engineering in Babol University of Technology, Babol, Iran. His research interests are High Voltage Engineering, Finite Element Method, Artificial Intelligence and Power System Operation.
    • Mohammad Mirzaie, Department of ECE, Babol University of Technology, Babol, Iran
      Mohammad Mirzaie obtained B.Sc and M.Sc Degrees in Electrical  Engineering from  University of Shahid Chamran, Ahvaz, Iran and Iran University of Science and Technology, Tehran, Iran in 1997 and 2000 respectively and PhD Degree in Electrical Engineering from the Iran University of Science and Technology in 2007. He worked as an Assistant Professor in the electrical and computer engineering department of Babol University of technology from 2007. His research interests include life management of high voltage equipments, high voltage engineering, intelligence networks for internal faults assessment in equipment and studying of insulation systems in transformers, cables, generators, breakers, insulators, electrical motors.
    • Abolfazl Rahimnejad, Department of ECE, Babol University of Technology, Babol, Iran

      Abolfazl Rahimnejad received the B.Sc degree in electrical engineering from Babol Noshirvani University of Technology, Mazandaran, Iran, in 2009, and now is student on M.Sc. degree of electrical engineering in Babol University of Technology, Babol, Iran. His research interests are electric field and magnetic field analysis, high-voltage engineering and also power quality in power systems.

    • Mohammad Bagher Asadpoor, Department of ECE, Babol University of Technology, Babol, Iran
      Mohammad Bagher Asadpoor received the B.Sc degree in electrical engineering from Semnan University, Semnan, Iran, in 2009, and now is student on M.Sc. degree of electrical engineering in Babol University of Technology, Babol, Iran. His research interests are electric field and magnetic field analysis and high-voltage engineering.

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  • How to Cite

    Akbari, E., Mirzaie, M., Rahimnejad, A., & Asadpoor, M. B. (2012). Finite Element Analysis of Disc Insulator Type and Corona Ring Effect on Electric Field Distribution over 230-kV Insulator Strings. International Journal of Engineering & Technology, 1(4), 407-419. https://doi.org/10.14419/ijet.v1i4.330