SU1525062A1 - Monitoring device for traffic light two-filament lamp - Google Patents

Abstract

The invention relates to railway automation and telemechanics and can be used in automatic blocking and electrical interlocking systems with local power supply of double-strand traffic lights. The purpose of the invention is to increase reliability. With a valid yarn 2, the current flows from the pole to the power source through the main executive relay 6, contacts 7.5, 22, 17 and 7.2 to the negative terminal 11. When the yarn 2 burns out, the relay 6 de-energizes and the positive terminal 10 is connected via contacts 6.2 and 7.1 to the control the output of the key element 8, with the result that the auxiliary executive relay 7 is energized. Contacts 7.2 and 7.4 switch the polarity of the power supply and through diode 12 a current flows through the second filament 3, and relay 6 is energized. The slow repeater 9 remains energized. Contacts 17, 18, 21 and 22 of the linear relay select the traffic lights, and contacts 23, 24, 20, 15, 16.9.1 and 9.2 switch off the relay 7 by changing the direction of motion and switching the traffic lights.

Description

The invention relates to railway automation and can be used in automatic blocking systems and electrical interlocking with local power supply of two-way traffic lights.

The purpose of the invention is to increase reliability.

The drawing shows the principle of the device.

The device contains a double-strand 1 traffic light lamp with the main and backup filaments 2 and 3, with which the main cable is connected via wires 4 and 5 of the cable line 6 with contacts 6.1 and 6.2.

An additional actuating relay 7 with contacts 7.1 7.5 is connected to the key: segment 8. Slow-acting repeat .1b 9 with contacts 9.1 and 9.2 connected to the positive and negative terminals 10 and I 1 of the power supply.

The drawing also shows diode 12, resistances 13 and 14, as well as contacts 15–18 of the signal relay, contacts 19–22 of the linear relay, contacts 23 and 24 of the correction relay (the relays themselves are not shown).

The device works as follows.

With a good yarn 2, the direct current from iiode 10 flows through the winding pe.ie 6, contacts 7.5, 22, 17, 7.3. c () right (), 1 1 14 on 11. Relay 6 is under current and controls the integrity of the thread 2. Pe.ie | under current, pe; ie 7 without current, K, iK 4CBoii e, 1 (1. ng 8 closed.

When a 2 pe, ie (o6etT04n vaags and through the rear KTiii 6.1 and 7.1. Counter, 1 1.3 1.3) is fed into the control input:, ts-mA X is shifted, and op, opening 1 npc. 7. Switches 7.2 and 7.4 when the conditioner changes the polarity of the current in the power supply circuit of lamp 1. At the same time, diode 12 is unlocked and the power supply circuit of reserve thread 3 closes. Relay 1 is again energized and removes the bias power supply, power 1 8, but it continues to remain , since the current flowing through it is 6, the holding current for this type of thyristor. When changing the indication of a traffic light, when turning from automatic locking, occupation and release of the haul by train, contacts 15, 16, 19, 20, 23, 24 a break occurs

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power element 8, and it closes, after which the relay 14 is de-energized. Similarly, the main thread is supplied for other traffic lights (not shown). The circuit also provides protection against the “failure of the signals of the traffic lights when switching, for which, in the linear circuit of the signal point, the contacts of the main executive relay 1 replace the contacts of the repeater 9 of the executive relay 1. Contact 7.1 provides for the elimination of the continuous overload of the control electrode of the element 8 in case of a burnout both strands.

Claims (1)

Invention Formula A device for monitoring two-lamp traffic lights, containing the main executive relay connected via the cable line to the main and backup threads of the traffic lights by the first winding, the second terminal of which is connected to one output of the power source, and an additional executive relay connected to the source power supply via a terminal (interconnected control contacts - iiutN pe.ie, and a key element, the control input of which is connected to one of the t | 1lovy contacts of additional use: - pipm, pg ()) relay, characterized by what, sir, 1k ) to increase reliability, it is replicated by the repetitive 1 st 1, the current relay, connected to the power source through the front contact of the main executive relay, TI, I .ioBoii, the contact, connected to the aaral-1, 1, on its front contact, connected to the memory of the first rear contact) additional (), tnp 1 e, t of the executive relay, the first B1, | th front and second rear contacts of which are connected between the cable line and the first1 1m output winding of the main executable relay, and the second front, paral its third rear contact, and the third rear contact, connected in parallel with its first front contact, are connected to another output of the power supply, and the first rear and front contacts of the slow repeater of the main relay, connected in parallel, are connected to the circuit supply additional executive relay.