随着电气铁道車辆的高速化,对于現在所使用的导电弓架的供电方式中,就必須解决綫架的脱綫或由于接触所引起的火花等問題。最近,日本研究出了一种新型的供电方式,以求根本上解决上述問題。这一方式的特点,是在軌道的适当地方装设变压器的一次綫圈,而在車辆的車軸上則装置变压器的二次綫圈,由二次綫圈所感应 With the rapid increase of electric railroad cars, the problems of the off-line of the bobbin or the spark caused by the contact must be solved in the power supply method of the currently used pantograph. Recently, Japan developed a new type of power supply, in order to fundamentally solve the above problems. The characteristic of this mode is that the primary coil of the transformer is installed at an appropriate place of the track and the secondary coil of the transformer is arranged on the axle of the vehicle, which is induced by the secondary coil