TRACK CIRCUIT Russian patent published in 1996 - IPC

FIELD: railway transport; automatic control devices. SUBSTANCE: track circuit has track generator 1, voltage regulator 2, matching elements 3 and 5, control duty setting unit 6, switch element 7, track receiver 8, unit 9 to clamp functional dependence of dielectric conductance of two track lines. OR gate 10 and dielectric conductance measuring unit 11. Unit 9 is connected to units measuring dielectric conductance of two track lines and is coupled with voltage regulator connected to output of track generator. EFFECT: enhanced reliability of operation. 1 dwg