MATHEMATICAL MODELING OF THE OPERATION OF AUDIO FREQUENCY (NO JUNCTION) AND JUNCTION RAIL CIRCUITS

Rail circuits are the basic elements of modern railway automation and telemechanics systems, performing functions track sensors telemechanical channels. It is shown that calculation their operating boundary conditions becomes more complicated with application junctionless audio frequency rail circuits. The analysis consists studying changes in operation various modes when circuit parameters changed. During analysis, optimal values power source determined for given conditions. An factors affecting currents voltages such schemes has been carried out. When analyzing calculating a circuit, it assumed line equipment linear, is, do not depend on flowing currents. To simplify calculations, represented by corresponding mathematical model (equivalent circuit) each mode. Depending type equivalent used, four-pole multi-pole models distinguished. At same time, reporting jointed Based results, directions allow accurate modeling non-joint have determined. Keywords: circuits, train traffic safety, (no junction) junction signaling system, sensors, model, remote conditioning monitoring.