CFD Analysis of 72.5kV${\sim}$800kV GIS with Moving Grid

이동격자를 이용한 72.5kV${\sim}$800kv 초고압 차단기 유동해석

  • 윤자홍 (현대중공업(주) 신제품개발실) ;
  • 최병화 (현대중공업(주) 신제품개발실) ;
  • 이기헉 (현대중공업(주) 신제품개발실) ;
  • 윤치영 (현대중공업(주) 신제품개발실) ;
  • 고경석 (현대중공업(주) 신제품개발실) ;
  • 민병수 (산업기술연구소) ;
  • 박일석 (산업기술연구소)
  • Published : 2002.07.10

Abstract

To develop GIS (Gas Insulated Switchgear), prediction of the flow field including pressure in GIS is very important. The transport phenomena in GIS including arc is also being studied in these days. In this study, to predict the arc behaviour for GIS with voltage rating up to 800kV developed by HHI (Hyundai Heavy Industries Co. Ltd.), the analysis of flow and electric field in GIS were investigated. To simulate the compressible flow in GIS, the CFX, commercial CFD code, was used. The movement of the piston and the electrode of the GIS was simulated with moving grid method, which was superior to the method of varying the property of cells in the aspect of accuracy and convergence of solution. The calculated maximum pressure within the puffer cylinder was matched with experimental data within 5% error. Also, the oscillation of pressure in GIS after the movement of electrode was well predicted.

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