The electricswitchmachine is an essential part of the railway signal system and plays an important role in guaranteeing the safety of the trains and promoting the transportation efficiency.
电动转辙机是铁路信号系统的关键设备，对保障行车安全、提高运输效率具有极其重要的作用。
2
Though analyzing the disadvantages of the brush motor in ZD6 type ElectricSwitchMachine, this paper introduces the replacement of brush motor by brushless DC motor and specific reliability measures.
分析了ZD6型电动转辙机有刷电机的缺点，介绍了无刷直流电机取代有刷电机的方案及可靠性措施。
3
A kind of human-machine interface of intelligent-controlled switch used to control low-voltage electric equipments in coal mines is introduced.