A novel method for energizing transformers for reducing inrush currents
Sharifian, M.B.B., Shahnia, F., Shasvand, A. and Hasanzadeh, I. (2006) A novel method for energizing transformers for reducing inrush currents. In: 3rd International Conference on "Technical and Physical Problems in Power Engineering" (TPE-2006), 29 - 31 May 2006, Gazi University, Ankara, TURKEY
Control and reduction of inrush currents of energizing transformers and reactors is an important problem in electric power systems where different methods are utilized for this purpose. In this paper, reviewing the most common methods, a novel method has been proposed and utilized for inrush current reduction in energizing transformers. In the proposed method, non simultaneous three phase switching is done within 10 cycles of time difference and a more little neutral point resistance has been utilized. Through the simulation results done with PSCAD/EMTDC, the efficiency of the proposed method in reducing the inrush current of energizing transformers as fast as possible is proved.
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