FIELD: rail vehicles.
SUBSTANCE: invention relates to methods of monitoring stations of railway track circuits. In method, to one end of track is connected track generator, and to the other - track receiver, consisting of band-pass filter, rectifier, voltage divider, analogue-digital converter of station computer, track transformers are placed in track boxes directly near rail lines RL, circuit insulating joints are arranged on both sides at cross-piece on rail leading to deviation, rails behind insulating joints are connected, on boundary of station and distillation there installed is throttle-transformers for connection of traction current suction, low-voltage secondary windings of track supply and receiving relay transformers are connected to rails, and high-voltage primary through electronic switches - respectively to cable conductors of two-wire line of supply ends and two-wire line of receiving ends, two-wire line of supply ends is used for alternate supply of rail circuits, supply of microelectronic devices of track boxes, implementation of cycle and cycle synchronization of distributors of EC station and track boxes, setting duration of sending Tk = 3⋅(1/f) is short, and TD = 10⋅(1/f) is a long, where f is frequency of signal current, for selection of track circuits, which are checked in each cycle, connection of track transformers to track receiver and track generator is carried out at specified intervals of time, which are determined with participation of distributors and tuning jumpers.
EFFECT: possibility of controlling conditions of track sections of a station neck with a limited number of insulating joints without throttle-transformers using a four-wire cable line.
1 cl, 4 dwg
