Title:
集電電流監視装置
Document Type and Number:
Japanese Patent JP7068065
Kind Code:
B2
Abstract:
A collected current monitoring device is provided which includes a current-value obtaining unit that obtains a current value I1 and a current value I2, a first RMS-calculation unit that calculates a root mean square RMS1, a second RMS-calculation unit that calculates a root mean square RMS2, an Iu calculation unit that calculates an imbalance current Iu, a change calculation unit that calculates an amount of change ΔIu, an average calculation unit that calculates a time average value aveΔIu, a determining unit that determines whether the time average value aveΔIu is larger than a threshold value, and a signal output unit that outputs an abnormality signal when the time average value aveΔIu is larger than the threshold value.
Inventors:
Hiroyasu Kakunan
Toshiki Tanaka
Yuji Morita
▲真▼柄 勇
Yuichi Ahiko
Kotaro Nakamura
Takuki Shimoyama
Toshiki Tanaka
Yuji Morita
▲真▼柄 勇
Yuichi Ahiko
Kotaro Nakamura
Takuki Shimoyama
Application Number:
JP2018118835A
Publication Date:
May 16, 2022
Filing Date:
June 22, 2018
Export Citation:
Assignee:
Tokai Passenger Railway Co., Ltd.
International Classes:
B60L5/26; B60L3/00; B60L5/04; G01R31/50
Domestic Patent References:
| JP201793022A | ||||
| JP2003319505A | ||||
| JP2009281790A |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation