FIELD: railway transport; signaling and communication.
SUBSTANCE: invention relates to voice track circuits. Proposed track circuit has generator 14, rail line, matching transformers, first rectifier 15, resistor 13, first analog-to-digital converter 16, track receiver and it is additionally furnished with change-over device 12, second rectifier 18, second analog-to-digital converter 19 and computer. Rail lines are connected through transformers with inputs/outputs of change-over device to inputs of which track generator is connected through resistor. Input of first rectifier is connected to poles of resistor, said rectifier being connected through first analog-to-digital converter to first input of computer, to second input of which output of change-over device is connected through second analog-to-digital and second rectifier. Output of computer is connected to input of change-over device.
EFFECT: improved serviceability of track circuit at reduced insulation resistance.
1 dwg
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