A TLM-based Surge Analysis of Grounding Electrodes

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  • TLM法による接地電極のサージ解析
  • TLMホウ ニ ヨル セッチ デンキョク ノ サージ カイセキ

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Abstract

In this paper, representations of a perfectly conducting thin wire and an imperfectly conducting medium in the transmission-line-modeling (TLM) calculation are briefly explained. Then, the method is applied to analyzing surge responses of a vertical parallelepiped grounding electrode and a square-loop grounding electrode. Surge responses calculated using the TLM method agree reasonably well with the corresponding responses measured and calculated using the finite-difference time-domain method. It is probably the first time that surge responses of grounding electrodes have been analyzed reasonably accurately using the TLM method.

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