COLLECTION CURRENT MONITORING DEVICE

PROBLEM TO BE SOLVED: To provide a collection current monitoring device capable of detecting electric line separation.SOLUTION: There is provided a collection current monitoring device 1 including a transformer current acquisition unit 7 for acquiring a current value Iof current that flows through s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKAMURA KOTARO, AHIKO YUICHI, SHIMOYAMA HIROKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a collection current monitoring device capable of detecting electric line separation.SOLUTION: There is provided a collection current monitoring device 1 including a transformer current acquisition unit 7 for acquiring a current value Iof current that flows through some transformers of a plurality of transformers, a total collection current calculation unit 9 for calculating a current value Iof collection current supplied by a plurality of current collection devices from the current value Iusing the undermentioned formula (1), a collection current acquisition unit 11 for acquiring a current value Iof collection current supplied by current collection devices other than one current collection device, and a collection current calculation unit 13 for calculating a current value Iof collection current supplied by the one current collection device by subtracting the current value Ifrom the current value I. The formula (1): I=I×(M/M) (Mbeing the number of main converters connected to some transformers, and Mbeing the sum of the number of main converters connected to any one of the plurality of transformers.)SELECTED DRAWING: Figure 2 【課題】電気離線を検出することができる集電電流監視装置を提供すること。【解決手段】複数の変圧器のうち、一部の変圧器に流れる電流の電流値Ipを取得する変圧器電流取得ユニット7と、電流値Ipから、下記式(1)を用いて、複数の集電装置が供給する集電電流の電流値Iallを算出する総集電電流算出ユニット9と、1個の集電装置以外の集電装置が供給する集電電流の電流値IXを取得する集電電流取得ユニット11と、電流値Iallから電流値IXを差し引くことで、1個の集電装置が供給する集電電流の電流値IYを算出する集電電流算出ユニット13とを備える集電電流監視装置1。式(1):Iall=Ip×(Mall/Mp)(前記式(1)においてMpは前記一部の変圧器に接続する主変換装置の個数であり、Mallは前記複数の変圧器のいずれかに接続する主変換装置の個数の総和である。)【選択図】図2