受电弓直流融冰技术研究

Research on Pantograph DC Current Ice Melting Technology

以HXD3C电力机车上的DSA250型受电弓为研究对象,设计了一套受电弓直流融冰技术方案,分别从受电弓(升、降)融冰点、直流电源的选取、电气布线、高低压隔离、加热设备等5个方面分析了该方案的可行性,并对受电弓直流融冰技术进行总结,提出该设计的优缺点,对受电弓的设计及运行维护具有指导意义。

With DSA250 pantograph on HXD3C electric locomotive as the object of research, a technical scheme of ice melting by pantograph DC short circuit current is prepared, the paper analyzes feasibilities of the scheme in terms of 5 aspects of ice melting point of pantograph （raising or dropping）, selection of DC power supply, electric wiring, isolation between high voltage and low voltage and heating equipment, summarizes the pantograph DC ice melting technology, lists out the advantages and disadvantages of the scheme, providing a reference for design, operation and maintenance of pantograph.