The traction return current of electrified railways has always affected the safe and reliable operation of railway signal equipment,so the performance of an effective digital monitoring of the traction return current is quite essential.To solve the power supply problem of monitoring equipment of outdoor return current,studies are made for the power supply of self-powered sensor.Analyzing is made for the impacts to the power supply quality on the basis of the calculation of coil air gap.Production process for self-powered sensors is introduced,the simulation and experiments verify that the self-powered sensor is able to meet the power supply requirements for monitoring equipment of traction return current.
self-poweredmonitoring equipment for traction return currentpower inductionsoft magnetic material
NETL
NSTL
万方数据
