Effective Installation Strategies of Fault Current Interrupting Arcing Horns Considering Operational Coordination with Responses of Line Protection Relays

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  • Ohtaka Toshiya
    Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry
  • Kameda Hideyuki
    System Engineering Research Laboratory, Central Research Institute of Electric Power Industry

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  • 送電線保護リレーとの動作協調を考慮した続流遮断型アークホーンの効果的な導入方法
  • ソウデンセン ホゴ リレー ト ノ ドウサ キョウチョウ オ コウリョ シタ ゾク リュウ シャダンガタ アークホーン ノ コウカテキ ナ ドウニュウ ホウホウ

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Abstract

The Fault Current Interrupting Arcing Horns (FCIAH) is a new type of arcing horns, which operates to break fault current within one cycle of alternating current and contributes to reducing the instantaneous power interruption due to the opening of a circuit breaker. However, reportedly the transmission line is often tripped by the line protection relay in some power utilities, even though the FCIAH successfully could break fault current. In this paper, we have investigated primary factors in the unwanted operation of the line protection relays at the current interruption by the FCIAH, and have proposed effective installation strategies of the FCIAH considering the operational coordination with the responses of the line protection relays.

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