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    Apparatus for deicing of trolley wires
    1.
    发明授权
    Apparatus for deicing of trolley wires 失效
    电车导线除冰装置

    公开(公告)号：US4190137A

    公开(公告)日：1980-02-26

    申请号：US918168

    申请日：1978-06-22

    申请人： Akira Shimada ,  Kouichi Watanabe ,  Katsuji Nakajima

    发明人： Akira Shimada ,  Kouichi Watanabe ,  Katsuji Nakajima

    IPC分类号： B60M3/00 ,  B60M1/34

    CPC分类号： B60M3/00

    摘要： In a power transmission system comprising at least two trolley wires for supplying an alternating current power to an electric vehicle, and at least two feeder lines coupled to the trolley wires at feeding points of the corresponding trolley wires spaced apart a given interval for feeding a voltage to the trolley wires, with a closed loop formed between a portion of the trolley wires and a portion of the feeder lines through two adjacent feeding points, a throughtype current transformer is provided for each feeder line such that the feeder line extends through the transformer and the primary winding of the transformer is connected to receive an alternating current voltage between the above described at least two trolley wires, whereby a secondary alternating current induced in the feeder lines serving as a secondary conductor of the transformer flows through the above described closed loop, which causes a Joule heat along the trolley wires, thereby to deicing of the trolley wires. Preferably, an alternating voltage between the above described at least two trolley wires is selectively applied to the primary winding of the transformer, such that a supply of the alternating current voltage to the primary winding is controlled manually or automatically responsive to meteorological conditions. Such an automatic control of a supply to the primary winding of the transformer may be selectively effected, in association with the temperature of the trolley wires being lower than a preset temperature, a predetermined meteorological condition being met by an ambient temperature, water, snow and the like, a current normally flowing through the trolley wires being less than a predetermined value, and the like, singly or in combination.

    摘要翻译： 在包括用于向电动车辆提供交流电力的至少两个电车线的电力传输系统中，以及在给定间隔间隔一定时间间隔的给定间隔处与至少两条馈线相连的至少两条馈线， 通过两个相邻的馈电点，通过两个相邻的馈电点，在一部分电车线之间形成闭合回路和一部分供电线，为每个供电线路提供通气型电流互感器，使得馈线延伸穿过变压器， 变压器的初级绕组被连接以在上述至少两个电车线之间接收交流电压，由此在用作变压器的次级导体的馈线中感应的次级交流电流流过上述闭环， 这导致沿着电车线的焦耳热，从而对电车线进行除冰。 优选地，上述至少两条电车线之间的交流电压被选择性地施加到变压器的初级绕组，使得根据气象条件手动或自动地控制向初级绕组的供电。 可以选择性地实现对变压器的初级绕组的供应的这种自动控制，其与电车线的温度低于预设温度，预定的气象条件由环境温度，水，雪和 通常流过电车线的电流小于预定值，等等，单独或组合。