A Study on Numerical Calculation of Inrush Current in Three-Phase Transformers

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  • 変圧器励磁突入電流の数値計算方法に関する一考察
  • ヘンアツキレイジトツニュウ デンリュウ ノ スウチ ケイサン ホウホウ ニ カンスル イチ コウサツ

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Abstract

This paper presents numerical calculation method on the versatile spreadsheet software such as Microsoft® Excel® for instantaneous value of inrush current in three-phase transformers. This method was developed using the Ralston's Runge-Kutta method and φ-L magnetizing characteristics. Inrush current waveform calculated using this method was compared with them calculated by EMTP-ATP.

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