SU1289712A1

SU1289712A1 - Device for reducing electromagnetic effect of electrified railways on wire communication channels

Info

Publication number: SU1289712A1
Application number: SU853916360A
Authority: SU
Inventors: Геннадий Андреевич Минин; Владимир Петрович Семенчук; Михаил Петрович Бадер; Александр Петрович Просецкий
Original assignee: Московский Институт Инженеров Железнодорожного Транспорта
Priority date: 1985-06-21
Filing date: 1985-06-21
Publication date: 1987-02-15

Abstract

Изобретение относитс к электрифицированному железнодорожному транспорту, вдоль линии движени которого проложены воздушные и кабельные каналы проводной св зи. Целью изобретени вл етс повышение надежности и эффективности каналов проводной св зи. Устройство содержит дополнительный провод 1, проложенный вдоль т говой сети 2 и каналов 3 проводной св зи, контур заземлени , генератор компенсирующего напр жени , датчик 6 помехи и т говую сеть 2, а также провода 8 трехфазных линий , которые расположены на опорах 9. 2 ил. 00 со ч 1чэ фс/г.2The invention relates to electrified rail transport, along which the air and cable channels of wire communication are laid. The aim of the invention is to improve the reliability and efficiency of wired communication channels. The device contains an additional wire 1, laid along the cable network 2 and wire communication channels 3, a ground loop, a compensating voltage generator, a noise sensor 6 and a wire network 2, as well as wires 8 of three-phase lines that are located on supports 9. 2 silt 00 from h 1che fs / g.2

Description

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Изобретение относитс к электрифицированному железнодорожному транспорту , вдоль линий которого проложены воздушные и кабельные каналы проводной св зи, и может быть исполь- 5 зовано в других област х народного хоз йства дл ослаблени вли ни прот женных сильноточных сетей на указанные каналы св зи.The invention relates to electrified rail transport, along which lines air and cable channels of wire communication are laid, and can be used in other areas of national economy to weaken the influence of extensive high-current networks on said communication channels.

Цель изобретени . - повьшение на- О дежности и эффективности каналов проводной св зи путем исключени электромагнитного вли ни электрических железных дорог на каналы проводной св зи.The purpose of the invention. - increasing the reliability and efficiency of wired communication channels by eliminating the electromagnetic effect of electric railways on wired communication channels.

На фиг.1 показана электрическа схема включени устройства и расположение проводов, вид в плане; на фиг.2 - расположение проводов на опорах, сечение перпендикул рно оси железнодорожного пути.Figure 1 shows the electrical connection of the device and the location of the wires, a plan view; Fig. 2 shows the arrangement of wires on supports, the cross section perpendicular to the axis of the railway track.

Устройство дл снижени электромагнитного вли ни электрических железных дорог на каналы проводной св зи содержит дополнительный провод 1, проложенный вдоль т говой сети 2 и каналов 3 проводной св зи, контур 4 заземлени , генератор 5 компенсирующего напр жени , датчик 6 помехи, выполненный в виде прот женного проводника. Дополнительный провод 1 и каналы 3 проводной св зи расположены на отдельно сто щих опорах 7, Датчик 6 помехи и т гова сеть 2, а также провода 8 трехфазных высоко- 35 вольтных линий расположены на опорах 9 т говой сети 2.The device for reducing the electromagnetic effect of electric railways on wired communication channels contains an additional wire 1, laid along the traction network 2 and wired communication channels 3, a ground loop 4, a compensating voltage generator 5, an interference sensor 6 married conductor. Additional wire 1 and channels 3 of wire communication are located on separately standing supports 7, Sensor 6 interferences and a traction network 2, as well as wires 8 of three-phase high-voltage lines are located on supports 9 of a traction network 2.

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ЭДС наводитс в проводе 1 помехи, подвешенном над т говой сетью 2, затем усиливаетс генератором 5 компен сирующего напр жени . Генератор 5 имеет регулирование коэффициента усилени входного сигнала при установке требуемого уровн компенсирующего напр жени . Усиленный сигнал сдвигаетс инвертором на 180 эл.град и создает в дополнительном проводе 1, который расположен над каналом 3 про водной св зи, ЭДС с противоположным знаком, котора , в свою очередь, на- водит в канале 3 проводной св зи ЭДС компенсирзтащзто вли ни т говой сети 2 и проводов 8 трехфазных линий. Генератор 5 компенсирующего напр жени включаетс в конце дополнительного проводу 1, поскольку в этом- случае создаетс один пространственно сдвинутый ток, навод щий соответственно ЭДС в канале 3 проводной св зи.The EMF is induced in the conductor 1 of the interference suspended over the traction network 2, then amplified by the voltage compensating generator 5. Generator 5 has an input gain control when the required level of compensating voltage is set. The amplified signal is shifted by the inverter 180 electr. And creates in the additional wire 1, which is located above the channel 3 for the water communication, an emf with opposite sign, which, in turn, causes the emf to compensate for the electromotive force in channel 3. traction network 2 and wires 8 three-phase lines. The compensating voltage generator 5 is turned on at the end of the additional wire 1, since in this case one spatially shifted current is created, which causes, respectively, EMF in channel 3 of the wired connection.

Дополнительный провод 1 имеет параметры , эквивалентные вли ющей т го вой сети ji проводов 8 трехфазной линии , что позвол ет уменьшить мешающе вли ние указанных линий.The additional wire 1 has parameters equivalent to the influencing th junction network ji of the wires 8 of the three-phase line, which makes it possible to reduce the interfering effect of the indicated lines.

Claims

Invention Formula

A device for reducing the electromagnetic effect of electric railways on wired communication channels, comprising an additional wire laid along the traction network and wired communication channels, characterized in that it is intended to increase. reliability, it is equipped with a ground loop, a compensating voltage generator and an interference sensor made in the form of a traction network located on the supports on the side affected by the wired connection channel, an extended conductor, one end of which is connected to the input of a compensating voltage generator , one output of which is connected to one end of the additional wire, and the other end and the other ends of the additional wire and the extended conductor are connected to the ground loop.

The device works as follows.

A network 2 and wires of 8 three-phase lines create an electromagnetic field. EMF is induced in the wired communication channels 3.

Three-phase lines receive power from busbar traction substations to which DC converters are connected (not shown). Such a connection causes the presence of a complex spectrum in the wires of 8 three-phase lines, which has an interfering effect on the channels 3 of the wired connection, commensurate with the influence of the traction network 2, and

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The EMF is induced in the conductor 1 of the noise suspended above the traction network 2, then amplified by the compensating voltage generator 5. Generator 5 has an input gain control when the required level of compensating voltage is set. The amplified signal is shifted by the inverter 180 electr. And creates in the additional wire 1, which is located above the channel 3 of the wired connection, an emf with opposite sign, which, in turn, drives the electromotive force in the channel 3, compensates for traction network 2 and wires 8 three-phase lines. The compensating voltage generator 5 is turned on at the end of the additional wire 1, since in this case one spatially shifted current is created, which causes, respectively, EMF in channel 3 of the wired connection.

The additional wire 1 has the parameters equivalent to the influencing pulling network ji of the wires 8 of the three-phase line, which allows reducing the interfering influence of the indicated lines.

Invention Formula

A device for reducing the electromagnetic effect of electric railways on wired communication channels, which contains an additional wire laid along the traction network and wired communication channels, characterized in that, in order to increase reliability, it is equipped with a ground circuit, a compensating generator voltage and interference sensor, made in the form of a traction network located on the supports from the side affected by the wired communication channel, a lengthy conductor, one end of which is connected to the generator input of the compensating voltage, one output of which is connected to one end of the additional wire, and the other of the code and the other ends of the additional wire and the extended conductor are connected to the ground loop.

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Editor I. Casard

Compiled by V. Kochetkov

Tehred V. Kadar Proofreader A.T.

Order 7855/16 Circulation 620 Subscription

VNSHPI State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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