To provide a technique that suppresses wide range spread of accidents to protect a DC feeder system while protecting a DC breaker.SOLUTION: A transformation system comprises: a power reception part of first transformation equipment that receives electric power from a power network; a transformer which transforms a voltage of the electric power received by the power reception part; a power supply part which supplies the electric power of which the voltage has been transformed by the transformer to a feeder cable; a breaker which is installed between the transformer and the power supply part for each line of the feeder cable; a protection interlocking device. The protection interlocking device can detect failure current generation and interruption failure in the breaker, and when detecting interruption failure in a first breaker after opening the first breaker in which failure current generation has been detected, inputs the first breaker, gives an open command to a second breaker of second transformation equipment different from the first transformation equipment that is connected to a line same as the first breaker, and opens the first breaker after electric current flowing through the first breaker becomes zero.SELECTED DRAWING: Figure 1

    【課題】直流遮断器を保護しつつ事故の広範囲な波及を抑制して直流き電系統を保護する技術を提供する。【解決手段】変電システムは、第1の変電設備の、電力網から電力を受ける受電部と、受電部で受けた電力の電圧を変換する変圧器と、変圧器で電圧を変換された電力をき電線へ供給する給電部と、変圧器と給電部との間に、き電線の回線ごとに設置される遮断器と、保護連動装置と、を備え、保護連動装置は、遮断器における故障電流の発生および遮断失敗を検出することができ、故障電流の発生を検出された第1の遮断器を開放した後に第1の遮断器における遮断失敗を検出した場合に、第1の遮断器を投入し、第1の変電設備とは異なる第2の変電設備の、第1の遮断器と同一の回線に接続された第2の遮断器に開放指令を与え、第1の遮断器を流れる電流が零になった後に第1の遮断器を開放する。【選択図】図1


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    Titel :

    TRANSFORMATION SYSTEM AND CONTROL METHOD FOR TRANSFORMATION SYSTEM


    Weitere Titelangaben:

    変電システムおよび変電システムの制御方法


    Beteiligte:
    FURUI HIROKAZU (Autor:in) / FUJITA YASUNOBU (Autor:in) / MATSUDA YOSHIHIKO (Autor:in) / KIKUKAWA SHUICHI (Autor:in)

    Erscheinungsdatum :

    07.07.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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