The Implementation of Dynamic Rating and Transmission Line Protection Function in IED

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  • IEDにおけるダイナミックレーティング機能と送電線保護機能の実装
  • IED ニ オケル ダイナミックレーティング キノウ ト ソウデンセン ホゴ キノウ ノ ジッソウ

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Abstract

<p>The idea of dynamic rating system to maximize the use of existing facilities is effective for solving the lack of transmission line vacant capacity that prevents a large amount of dispersed generations from connecting power grids. Such system requires a new arithmetic device for implementing the complicated formula to calculate the current capacity together with the overload protection device for transmission line. This paper considers the implementation of a dynamic rating system and a transmission line overload protection using one Intelligent Electronic Device (IED) and contrives a formula for calculating the current capacity that can be implemented in IED. It also shows the result of implementation of the proposed capacity calculation formula and transmission line protection.</p>

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