| 摘要 |
The device (20) has a determining unit for determining potential difference between two ends of sections (12a), proportional to current flowing on the sections of a current collecting unit e.g. pantograph (1), where the determining unit is constituted by a band(13), cable (14) and an operational amplifier (21). A multi-voltage pull chain of a railway vehicle e.g. rail car, is equipped with the collecting unit, where the current circulates on the collecting unit from a catenary line. A current transformer is integrated on a support frame (8) of the collecting unit. An independent claim is also included for a method for measuring current consumed by a multi-voltage pull chain of a railway vehicle. |
