RS114904A - Safety device for protecting a railway crossing with distant external low voltage ac feeding elements - Google Patents

Abstract

In a building of a railway station that is far up to 5 km from the place of cross-section of traffic communication with a railway road are set and mutually connected controls and control elements of a transition safety device. Transition safety device with distanced external elements and feeding voltage 230 V, AC is characterized by a cooperation of a block (1) with a block (9) of input elements, with a block (10) of output elements, with a block (3) fed by an oscilloscope and a switch, with the control block (2), with a block (4) the control function of the light in cooperation with the a block (5) regulates the warning lights that further acts jointly to a block (6) of the warning lights, with a block (7) and switch-on of the bell that further cooperates with a block (12) and regulator at the spot, in case of use of a swing-gate also act jointly between block (14), braking electromagnets with a block (15) switching-on the swing-gate, as wing-gate drive and a block (17) following the position of the swing-gate, the switch-off that acts jointly with a block (18) and the position of the switch-off, cooperate of the control block (2) with a block (4) control of the function of the ligting devices, with a block (11) for control of the regulator at the spot, and in cases when switch-off are used, acting jointly of the block (2) with a block (17) and monitoring of the position of the switch-off, cooperaton between the block (3) feeding by oscillator and a circuit breaker with the control block (2), with the block (4) of the control function of the lights. With the block (7) switching on the bell and with the block (11) the monitoring the regulator at the spot, in case that switch-offs are in use, also acting jointly between the block (3) with the block (13) and switching on the braking segments, with the block (15) and switching on the switch-off and with the block (17) for monitoring of the switch-off position. Transitional safety device with distanced external elemetns fed by a supply 230 V, AC effectively solves the possibility of distancing the feeding, control and monitoring unts from the transition spot and that in the areas where set are some other for example stational safety devices. Transitonal safety device is supplied from the block (3) and feeding by an oscillator and a switch off at the same time a permanent spare voltage 230 V+- 20% AC and at the same time a spare frequency voltage 230 V +- 20% AC with safety control of its level, and also with appropriate frequency, when the central block (1), the control block (2), the block (3) feeding with oscillator and the circuit-breaker and the block (4) the control of the function of the lights are feeding 24 V+-20% DC.