SU80433A1 - Method of blackout of traffic lights on the line of automatic blocking - Google Patents

Description

The object of the present invention is a method of svetoskrynki lights of traffic lights on the lines of an automatic blocking in the period of the threatened position.

The blackening of incandescent lamps by means of a supply of reduced, for example half, voltage is known. However, this method, especially under conditions of a three-phase line with many consumers distributed along it, presents considerable difficulties.

According to the proposed method, it is in such a system, for example, in an avtoblokirovka device with many traffic lights, that the masking position is transferred simply by turning off the single-pole disconnector at the supply substation. At the same time, the number of switching on traffic lights does not fundamentally change, but only a grouping of consumers is made.

The drawing shows the scheme of switching on the lights of traffic lights on the self-blocking line according to the proposed method (the devices located in the traffic light device are not shown).

All high-voltage transformers 6000-380 in, adventure to the high-voltage line, are grouped into two groups, even and odd.

One of these groups — TI, T3, TS, and so on — is connected between wires 1 and 3, and the other — T2, T4, Te — is connected between wires 2 and 3.

Between wires 1 and 2, automatic blocking transformers are not included. In normal mode, the operation of the circuit does not differ from the normal operation of such devices. The voltage from the high-voltage line through the mast transformer transformed from 6000 to 120 V enters the traffic light well, where with the help of CT transformers it decreases from 120 to 12 V and through the corresponding contacts of the control relays it supplies power to the traffic lights

lamps.

Switching to the camouflage position is achieved by simply turning off the single-pole disconnector located at the supply substation. In this case, one high-voltage wire 3 is turned off. Both transformer groups are even and odd are connected in series between wires 1 and 2. Thus, the voltage on each transformer will be equal to half of the normal mains voltage, i.e. 3000 V.

After transformation, the voltage at the traffic lights will be 6 V, i.e., the required one.

Other devices, such as relays and track circuits, are powered by batteries during the ikirechny mode.

  -.- Subject of the invention. ......

The method of interrupting the signaling of traffic lights on an automatic interlocking line with connection to a three-phase high-voltage network of linear transformers, supplying traffic lights, in order to centrally control all the transformers at the beginning of the high-voltage line to reduce voltage on the primary windings of transformers doubled.

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