COLLECTED CURRENT MONITORING DEVICE

To provide a collected current monitoring device capable of analyzing collected current of each current collecting device while decreasing facility cost.SOLUTION: A collected current monitoring device 1 is installed in a railway vehicle including: a plurality of current collecting devices 11 and 12; a plurality of main transformers 21, 22, 23, and 24; and a plurality of main conversion devices 31, 32, 33, and 34. The collected current monitoring device includes: a supply current sensor 2 measuring current supplied to an arbitrary one main transformer; at least one inter-current collecting device current sensor 3 disposed for each communicating passage 41 connecting adjacent two current collecting devices, and measuring current flowing in the communicating passage; and a processing unit for calculating current measured by respective sensors of the supply current sensor and the at least one inter-current collecting device current sensor, and current flowing in respective devices of a plurality of current collecting devices on the basis of distribution ratio of the current supplied to the plurality of main transformers.SELECTED DRAWING: Figure 1 【課題】設備コストを低減しつつ、各集電装置の集電電流を解析できる集電電流監視装置を提供する。【解決手段】集電電流監視装置１は、複数の集電装置１１、１２と、複数の主変圧器２１、２２、２３、２４と、複数の主変換装置３１、３２、３３、３４とを備える鉄道車両に設置される。集電電流監視装置は、任意の１つの主変圧器に供給される電流を測定する供給電流センサ２と、隣接する２つの集電装置を接続する連絡経路４１ごとに配置されると共に、連絡経路を流れる電流を測定する少なくとも１つの集電装置間電流センサ３と、供給電流センサ及び少なくとも１つの集電装置間電流センサそれぞれによって測定される電流と、複数の主変圧器に供給される電流の分配比とに基づいて、複数の集電装置それぞれに流れる電流の算出を行う処理部とを備える。【選択図】図１