Calculation of Partial Discharge Inception Voltages in Ultradilute SF6 + N-2 Gas Mixtures


DÜZKAYA H. , Dincer M. S. , Hiziroglu H. R.

Annual Report Conference on Electrical Insulation and Dielectric Phenomena, Virginia, United States Of America, 18 - 21 October 2009, pp.5-7 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Virginia
  • Country: United States Of America
  • Page Numbers: pp.5-7

Abstract

This study proposes a method of calculation to estimate partial discharge inception voltages in ultradilute SF6+N-2 gas mixtures. The method is based on the condition necessary for the initial streamer to propagate in a gap where the electric field distribution is highly non uniform. The proposed method utilizes the finite element method (FEM) in determining the electric fields in ultradilute SF6+N-2 gas mixtures. The analysis is applied for rod-plane gaps. Since the average errors are less than 5%, it is recommended to use the proposed simulation model to predict partial discharge inception voltages in ultradilute SF6+N-2 gas mixtures.