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Influence of nozzle on electric field of SF6 tank-type circuit breaker

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3 Author(s)
Liu Zhigang ; Sch. of Electr. Eng., Xi''an Jiaotong Univ., Shanxi, China ; Lin Xin ; Geng Yingsan

The isoparametric finite element method is used to calculate the three-dimensional electric field of a tank-type circuit breaker and the large sparse matrix equation is solved using the ICCG (incomplete Cholesky-conjugate gradient) algorithm. The pointer addressing of the coefficient matrix is studied and a new data structure is adopted. The calculations show that the ICCG method can solve large sparse matrix equations effectively. Graph processing techniques on the display of three-dimensional meshes are also studied and a rapid hidden eliminating algorithm is taken to display the mesh graph of the nozzle and chamber. The effects of the nozzle on the electric field are studied.

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Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on  (Volume:4 )

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