SU1521648A1 - Track circuit - Google Patents

Abstract

The invention relates to railway automation and can be used in interval train control systems. The purpose of the invention is to increase reliability. When the voltage on the track relay 8 is overestimated, it continuously holds its measles and by contact 8.1 it breaks the self-locking circuit of the reverse repeater of the track relay 10. The latter turns the decoder 9 on and off together with the executive relay 13, the contacts of which turn on the red light at a traffic light. 1 il.

Description

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The invention relates to automation and telemechanics in railway transport and can be used in the systems of interval control of the movement of trains.

The purpose of the invention is to increase reliability.

The drawing shows a diagram of the proposed track circuit.

The power of the track circuit is carried out from the source-1 power through the pin 2 of the pendulum transmitter and the control relay 3, namely via pin 3.1. To limit and control the pulses, as well as provide a shunt effect, a current limiter 4, -a is provided for adjusting the weakened pulse, an additional current limiter 5. The control over the continuous supply (for the flow of current in the weakened pulses) is carried out by the relay 3. The voltage on the relay 3 with the weakened pulse is set at the expense of the adjusting resistor 6 somewhat higher than the drop voltage. At the other end a track relay 8 is connected to the rail line 7. With contacts 8.1, relay 8 supplies power to the decoder 9 and the winding of the slow-acting reverse repeater of the path relay 10. Track relay 10 has a contact 10.1 and deceleration and, with a properly adjusted rail circuit, it continuously keeps its measles . The poles 11 and 12 of the power supply source 1 through the decoder 9 feed the executive relay 13.

Rail circuit operates as follows.

If the supply voltage is too high, then the track relay 8 is continuously energized, which leads to the switching on of the track relay 10, which, by contact 10.1, turns off the power from the decoder 9, and also clears itself from the lock.

When the voltage on the overload relay 8 is overestimated, it continuously keeps its measles and by contact 8.1 breaks the self-locking circuit of the reverse repeater of the overload relay 10, which turns off and off the decoder 9 together with the executive relay 13 (the executive relay 13 switches on a red light at the traffic light). You can restore the effect of the scheme

 only with the participation of man.

Claims (1)

Invention Formula Rail circuit containing power supply through current limiter and contact a mating transmitter with one pole connected to one rail at one end of a rail line, a track relay connected to a rail line at its other end, connected by an output to an executive relay a decoder, to one and the other inputs of which are connected respectively the rear and front contacts of a track relay, characterized in that, in order to increase reliability, it is equipped with an additional current limiter, the reverse 5 by a track relay repeater, a control relay, one output of which is connected to another rail on the first end of the rail line through an adjusting resistor and from its own rear contact to the other pole of the power source, and the other 0 the output of the control relay is connected to another rail directly, with an additional current limiter connected in parallel to the pin of the transmitter transmitter, and the track follower follower is connected to the second input by one output 5 of the decoder, the other output is to the first pole of the power source, and the axial contact of the path relay is connected via the rear contact of the reverse repeater of the path relay to the other pole of the power source.