Development of Waveform Reconstruction Method with Current Transformer Saturation

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  • 変流器飽和時の波形復元手法の開発
  • ヘンリュウキ ホウワジ ノ ハケイ フクゲン シュホウ ノ カイハツ

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This paper presents a new technique of waveform reconstruction method with CT (Current Transformer) saturation in power system. The authors have developed the method of waveform reconstruction using secondary current waveform of CT during a non-saturation. It is the method to identify variables of a mathematical model of primary current waveform of CT. We applied this technique to real current waveform in the fault of 66kV transmission line and confirmed the effectiveness. And we report the result that applied the proposed method to fault location of transmission line. In verification of fault location, we confirmed that the proposed method has improved fault location precision.

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