RU2246137C2 - Traffic light double-filament lamp monitoring and switching device - Google Patents

Abstract

FIELD: railroad automatic equipment.

SUBSTANCE: device has light relay, basic filament lamp integrity check light relays, cable line, signal transformers, capacitors, resistors and diodes. Device also has relay for switching for reserve filament (hermetically sealed reel relays) disposed inside transformer's box or inside head of traffic light.

EFFECT: significant reduction in number of cable conductors.

1 dwg

Description

The invention relates to the field of railway automation and telemechanics, in particular to devices for regulating the movement of trains.

A device for switching and control of double-stranded lamps of output traffic lights at local power [Petrov AF, Tseiko LP, Ivensky IM Schemes of electrical centralization of intermediate stations. - M .: Transport, 1987, p. 91-93].

The disadvantage of this scheme is the use of a relay cabinet at the output traffic lights.

There is also a device for switching and control of double-stranded lamps of output traffic lights [GTSS instruction of November 22, 1996 No. 1247/1361, code PR 89: On devices of switching and control double-stranded lamps of traffic lights PKU-M, author of the development Assoc. MIIT Zenkovich Yu.I.].

The disadvantages of this device are the inability to use at traffic lights with two simultaneously burning lamps, the lack of lamp control with a double voltage reduction, the high cost of PKU-M equipment, which eliminates the use in new construction.

The closest in technical essence to the claimed device is the selected as a prototype device for switching and control of double-stranded lamps of output traffic lights with central power [Petrov AF, Tseiko LP, Ivensky IM Schemes of electrical centralization of intermediate stations. - M .: Transport, 1987, pp. 96-100, Fig. 54.], containing the control circuit (Fig. 54), cable conductors (on the main and backup threads for one core), signal transformers (for each thread on the transformer )

A disadvantage of the known device is a large cable consumption and a larger number of signal transformers.

The technical result, the achievement of which this invention is directed, is to reduce construction costs with a new design and the use of double-filament lamps during reconstruction without additional cable laying, as well as to increase the reliability of interval control devices for train movements.

The technical result with two simultaneously burning lamps at a traffic light is achieved by the fact that the switching device and control of two filament lamps of the output traffic lights, containing a power source, a first signal control relay, a first fuse, a first fire relay, a cable line, signal transformers, the first relay switch to backup a thread, and for controlling and monitoring the first lamp, it is additionally equipped with a first fire relay for monitoring the integrity of the main thread of the lamp, two capacitors, the first res a torus and a diode, and for controlling and monitoring the second lamp it is additionally equipped with a second fuse, a second control signal relay, a second fire relay, a second fire relay for monitoring the integrity of the main thread of the lamp, a third and fourth capacitor, a second resistor and a diode, a second switching relay a reserve thread, wherein the first line wire is connected to the first pole of the power source through the first fuse, the winding of the first fire relay, the first capacitor and the front contact of the first signal relay, the first fire relay for monitoring the integrity of the main thread of the lamp is connected between the common contact of the first signal relay and the second line wire connected to the second pole of the power source, the first and second input terminals of the first signal transformer are connected to the other ends of the first and second line wires through the second capacitor, and a circuit is connected, which consists of the first front contact of the first relay switching to the backup thread, the first resistor and the first diode connected in series to the first the main thread of the first lamp is connected to the second output terminals of the first signal transformer through the third front contact of the second switch to the backup thread and the winding of the first switch to the backup thread, and is connected to the third output terminal of the first signal transformer through the second rear contact of the first switch to the backup thread backup thread of the first lamp, the third rear contact of the second relay switch to the backup thread is connected to the fourth output terminal of the first signal transformer, the third line wire is connected to the first pole of the power source through the second fuse, the winding of the second fire relay, the third capacitor and the front contact of the second signal relay, the second fire relay for monitoring the integrity of the main thread of the lamp is connected between the common contact of the second signal relay and the second linear wire, to the other ends of the third and second line wires through the fourth capacitor are connected to the first and second input terminals of the second signal transformer, and also connected to the circuit, which consists of the first front contact of the second relay switch to the backup thread, the second resistor and the second diode connected in series to the first and second output terminals of the second signal transformer through the third front contact of the first relay to the backup thread and the winding of the second relay switch to the backup thread the thread of the second lamp, and to the third output terminal of the second signal transformer through the second rear contact of the second relay switch to the backup thread under the backup thread of the second lamp is turned on, the third rear contact of the first relay switch to the backup thread is connected to the fourth output terminal of the second signal transformer.

The drawing shows a diagram of the inclusion of dual-filament lamps for a traffic light with two simultaneously lit signal lights. The circuit contains a pole of a power source 1 connected to one pole of a fuse 2, to the second pole of which a first fire relay 3 is connected, to another pole of which, through a first capacitor 4, one terminal of the coil of the fire relay of the main lamp 5 and a common contact of the signal relay 6 are connected, front contact which is connected to the first linear wire 7, the second end of which is connected to the second capacitor 8, the second pole of which is connected to the first input terminal of the first signal transformer 9, the second input terminal through the second line wire 10 is connected to the second pole of the power source 11 and the second terminal of the relay winding 5. The main thread of the traffic light 13 is connected to the first and second output terminals of the signal transformer 9 through the winding of the switching relay 12. The backup thread of the lamp is connected to the third output terminal of the signal transformer through the rear contact of the switching relay 12.2. A series circuit consisting of a front contact of a relay 12.1, a resistor 14 and a diode 15 is connected to the linear wires 7 and 10. In addition, the following devices are provided: a second fuse 16, a second fire relay 17, a third capacitor 18, a contact of the second signal relay 19 (СЖ - signal activation of the second yellow [green] light), the third line wire 20, the fourth capacitor 21, the second signal transformer 22. All of the above devices are connected in series and connected to the poles 1 and 11. In addition, to the first and second output terminals odes of the signal transformer 22 through the third front contact of the relay 12 and the winding of the second switching relay 23 is connected to the main thread of the second traffic light 24. The backup thread of this lamp is connected through the first contact of the second control relay 23.1 to the third output terminal of the transformer 22. To the fourth output terminal of the transformer 22 is connected the third rear contact of the first control relay 12.3. The relay 12 is connected to the transformer 9 in the same way as the relay 23 is connected to the transformer 22. A line consisting of the first front contact of the second switching relay 23.1, the second resistor 25, and the second diode 26 is connected in series to the linear wires 10 and 20. Fire relay of the main thread the second lamp is connected to the pole 11 and the common contact of the second signal relay.

The device operates as follows. With the excitation of the signal relay 6, a power circuit of the signal transformer 9 is created from the power source with poles 1 and 11 through the elements 2, 3, 4, 6, 7, 8, and 10. The induced emf of the secondary winding creates the main current (left and right conclusions of the lamp 13) and reserve (lower and right conclusions of the lamp 13) threads of the lamp 13. In this case, the switching relay 12 is activated and its contact 12.2 opens the circuit of the backup thread of the lamp 13. Another contact of this relay 12.1 closes the circuit of the diode 15 through the resistor 14, so that the fire monitoring relay is excited 5 main threads of the lamp. Fire relay 3 is also energized. Capacitors 4 and 8 exclude the shunting of the relay coil 5 by the windings of the supply (not shown) and signal transformers. Without the mentioned capacitors, the excitation of relay 5 would not have been possible. Resistor 14 reduces the current of the diode. A switching relay (reed switch) 12 together with a signal transformer 9, a resistor 14 and a diode 15 are placed in the transformer box of the traffic light. Other devices, except for a traffic light, are located at the EC post. When the main thread of the lamp 13 burns out, the relay 12 is de-energized, which closes the backup thread circuit with one contact 12.2 and the diode 15 circuit with the other 12.1, so the main thread 5 fire relay is de-energized. Relay 3 continues to hold the armature until the backup lamp thread is intact 13. To avoid overstating the voltage on the backup filament of the lamp, it is connected only to part of the secondary winding of the transformer 9. The total voltage of the secondary winding is calculated under the condition that part of the voltage drops on the relay winding 12. Relay contacts 5 are used to inform the duty officer at the station on the main lamp filament burns out. In addition, relay contacts 3 and 5 can be used to control traffic lights. Due to the fact that a relay of a non-first reliability class can be used as a relay 12, it is necessary to take into account the consequences of a relay malfunction. If contact 12.2 does not open, then both threads of the lamp will burn, which does not lead to a dangerous situation. If contact 12.2 does not close, the backup thread will not burn, and when the main burnout fails, both fire relays 3 and 5 will be de-energized, information will appear on the burnout of both threads, which also does not entail dangerous consequences. If the contact 12.1 is not closed with a working lamp, information about the burning of the main thread will appear. Non-opening contact 12.1 is most undesirable. In this case, there is no control of the burnout of the main thread. However, the signal indication at the traffic light is reliable and does not entail a dangerous situation. The presence of a resistor 14 minimizes the possibility of sintering of the contact 12.1. In addition, a relay contact 23.3 is provided in the main thread circuit of the lamp 13, and a relay contact 12.3 in the lamp circuit 24. In the event of the burnout of the main thread of the lamp 13 on the main thread of the lamp 24 by contact 12.3, the voltage decreases to a value at which the visibility range of both lamps will be the same. When the main thread of the lamp 24 burns out with the contact 23.3, the voltage on the main thread of the lamp 13 decreases. If the lamp 13 should blink, then the relay 23 is taken to slow down. If decelerations are not foreseen, then the voltage 24 will pulsate on the lamp 24 in time with the blinking of the lamp 13.

The implementation of the proposed device provides significant savings in cable cores both in new construction and in the reconstruction of the station.

Claims (1)

A device for switching and monitoring two-wire lamps of output traffic lights, containing a power source, a first signal control relay, a first fuse, a first fire relay, a cable line, signal transformers, a first relay switching to a backup thread, characterized in that it is for controlling and monitoring the first lamp additionally equipped with a first fire relay for monitoring the integrity of the main thread of the lamp, two capacitors, the first resistor and diode, and for controlling and monitoring the second lamp it is additionally Shown with a second fuse, a second control signal relay, a second fire relay, a second fire relay for monitoring the integrity of the main thread of the lamp, a third and fourth capacitor, a second resistor and a diode, a second relay for switching to a backup thread, while the first line wire is connected to the first pole of the power source through the first fuse, the winding of the first fire relay, the first capacitor and the front contact of the first signal relay, the first fire relay of the integrity control of the main thread of the lamp is connected between by the contact of the first signal relay and the second linear wire connected to the second pole of the power source, the first and second input terminals of the first signal transformer are connected to the other ends of the first and second linear wires through a second capacitor, and a circuit is connected that consists of a first front the contact of the first relay switch to the backup thread, the first resistor and the first diode, to the first and second output terminals of the first signal transformer through the third FR the main contact of the second relay switch to the backup thread and the winding of the first relay switch to the backup thread connects the main thread of the first lamp, and to the third output terminal of the first signal transformer through the second rear contact of the first relay to the backup thread, the backup thread of the first lamp is connected, the third rear contact of the second the switch for switching to the backup thread is connected to the fourth output terminal of the first signal transformer, the third line wire is connected to the first pole of the power supply through the second fuse, the winding of the second fire relay, the third capacitor and the front contact of the second signal relay, the second fire relay of the integrity control of the main thread of the lamp is connected between the common contact of the second signal relay and the second line wire, to the other ends of the third and second linear wires through the fourth capacitor the first and second input terminals of the second signal transformer are connected, as well as a circuit that consists of a series of connected first front contact w The second relay switch to the backup thread, the second resistor and the second diode, to the first and second output terminals of the second signal transformer through the third front contact of the first switch to the backup thread and the winding of the second switch to the backup thread, the main thread of the second lamp is connected, and the third output the output of the second signal transformer through the second rear contact of the second relay switch to the backup thread connected to the backup thread of the second lamp, the third rear contact of the first relay switch The backup thread is connected to the fourth output terminal of the second signal transformer.