FIELD: electricity.
SUBSTANCE: invention relates to a means of monitoring the states of unbranched track circuits. The electrical joint is a rail of the track section, to the ends of which capacitors are connected, the sections of the rail and capacitors form parallel oscillatory circuits to exclude spreading of the tone frequency current beyond the rail line, the TC is powered from the middle, the left and right rails of the track section are connected by an oblique connector, to fix the shunt at any point of the track section, the state of the TC is fixed by the current value of the supply end, power is supplied to the rail circuit from the track generator via a two-wire line connected to the primary winding of the track transformer, the secondary winding of which is connected to the middle of the TC, the track receiver is connected in series with the track generator using the method for monitoring relative track circuits, i.e. comparing the current value of the current of the supply end of the rail circuit with a threshold value, which is determined as the average value of three measurements of the current of the supply end, measured immediately after the occupation of one of the adjacent TCs.
EFFECT: increased shunt sensitivity in areas where electrical joints are located.
1 cl, 2 dwg
