庞巴迪公司正在德国鲍芩演示一种名为“Primove”的无架空输电网轻轨。这种轻轨采用一种崭新的供电方式,无须架空输电网。这种轻轨的供电采用了变压器的原理:轻轨所需能量由安置在两轨道之间的电缆提供,电缆相当于变压器的初级线圈,当通电时产生交变磁场,该磁场又被安装在轻轨 Bombardier is demonstrating a ballastless transmission grid light rail called “Primove” in Germany. This light rail uses a new way of power supply, without overhead transmission lines. The power supply of this light rail uses the principle of a transformer: the energy required for the light rail is provided by a cable placed between the two rails, which is equivalent to the primary coil of the transformer and generates an alternating magnetic field when energized, which in turn is mounted on the light rail