PROBLEM TO BE SOLVED: To achieve compactification of a system in a ground fault detection system of a railway vehicle capable of determining occurrence of a ground fault and a place of its occurrence when a ground fault occurs.SOLUTION: A ground fault detection system of a railway vehicle for detecting occurrence of a ground fault is mounted on an organization comprising a plurality of current collecting units for collecting current, a high voltage circuit driven by power captured by the current collecting units, and a high voltage bus electrically connected to the plurality of current collecting units. Further, the ground fault detection system comprises: a plurality of ammeters (11, 13) for measuring a current flowing through the plurality of current collecting units and a current flowing through the high voltage bus; a ground fault determination unit (24) for detecting occurrence of a ground fault by detecting that at least one of the plurality of ammeters is saturated; and a position determination unit (27) for determining a place of the occurrence of the ground fault based on a direction of the current flowing through the high voltage bus detected by the plurality of ammeters.SELECTED DRAWING: Figure 2
【課題】地絡の発生時に地絡の発生と発生箇所とを判定できる鉄道車両の地絡検出システムにおいて、システムのコンパクト化を図る。【解決手段】集電を行う複数の集電部と、集電部によって取り込まれた電力によって駆動される高電圧回路と、複数の集電部と電気的に接続される高圧母線とを備える編成に搭載されて、地絡の発生を検出する鉄道車両の地絡検出システムである。そして、複数の集電部を流れる電流と高圧母線に流れる電流とを計測する複数の電流計(11、13)と、複数の電流計の少なくとも1つが飽和したことを検知して地絡の発生を判定する地絡判定部(24)と、複数の電流計が検出した高圧母線に流れる電流の方向に基づいて地絡の発生箇所を判定する位置判定部(27)とを備える。【選択図】図2
GROUND FAULT DETECTION SYSTEM OF RAILWAY VEHICLE
鉄道車両の地絡検出システム
2018-03-08
Patent
Electronic Resource
Japanese
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