一种新型交流转辙机控制电路在地铁中的应用

城市轨道交通正线多采用交流转辙机,既有的五线制交流道岔控制电路因为动作电路和表示电路合用,常导致2DQJ在转极的时候发生带电动作,产生拉弧现象。而终端站或折返站因道岔动作次数多.造成2DQJ频繁更换。为此,北京地铁八通线率先在城市轨道交通中.将动作电路和表示电路分开.为交流转辙机控制电路提供新的参考。

Application of one New Control Circuit of AC Switch Machine in Subway

The main line of urban rail transit usually adopts AC switch machine.The existing five-wire switch control circuit uses the action circuit and the display circuit together,which often causes charged actions and discharge of the relay's contact when the 2DQJ contact turns to reverse the polarity during its conversion process.Whereas,too many movements of the switch at a terminal station or a turn-around station may lead to frequent replacement of the 2DQJ contact.Therefore,the action circuit and the display circuit are firstly set up in separation in Beijing Metro's Batong line,providing a new reference for the AC switch control circuit in urban rail transit.