SU1325713A1 - Device for locating faulty place in circuit of remote power supply communication lines - Google Patents

Abstract

The invention relates to telecommunications. The purpose of the invention is to improve the accuracy of determining the location and type of malfunction. The device contains a serviceable point 1 consisting of a source of remote power supply 2 and a switch 3, a forward and return wires 12 and 13 of the chain of remote power supply and an unattended point 25 consisting of a temporary adder 14, a telecontrol unit 15, a communication line 16 telemechanics, resistor 17, diode 18, regenerator 19 and 20, zener diodes 21 and 22, and optoelectronic units (ОЭБ) 23 and 24. Running switch 3 as a three-position switch, as well as introducing zener diodes 21 and 22 and ОЭБ 23 and 24 allows for more complete and precise control l cables of the communication line, which are checked separately, in determining the place of the break and isolation. 1 il. 25 to (L with to 01 with

Description

1132571

The invention relates to electrical communication technology and can be used in equipment for monitoring linear ract.

The purpose of the invention is to determine the accuracy of determining the place and type of imbalance.

The drawing shows a block diagram of the proposed device. -e

A device for determining the location of a fault in a remote power supply chain of a communication line contains a serviced point 1, an auxiliary source 2 of a remote power supply, a nepe-.g switch 3 including the first 4 and second 5 moving contacts first 6, second 7, third 8, fourth 9, fifth 10 and sixth 11 non-moving contacts, direct wire 12 of the remote power supply circuit, return wire 13 of the remote power supply circuit, temporary with the cheater 14, telecontrol unit 15, telemechanics connection line 16, resistor 17, diode 18, the first regenerator 19, 25 the second regenerator Ator 20, first Zener diode 21, second Zener diode 22, first optoelectronic unit 23, second optoelectronic unit 24, unattended point 25. „„

 The device works as follows.

With the receipt of a malfunction of the remote power supply circuit on the serviced point 1 of the alarm, the fault test for direct 12 and reverse 13 wires is performed to determine the fault area.

When checking for a short circuit of the cable 40 to the ground in the serviced point 1, the switch 3 is set to the first or second position (separately for direct 12 and reverse 13 wires) .45

In these cases, the power from the auxiliary source 2 is fed to the corresponding wire with a polarity opposite to the operating mode.

For example, if for information transfer mode 50, the polarity of the forward voltage 12 and reverse 13 wires is set to plus and minus, respectively, then to test the forward cable (forward wire 12), it is connected to the negative pole of the auxiliary cable. source 2 with positive pole grounding.

32

In this case, in the case of cable insulation failure, all optoelectronic units 23 are triggered at all non-serving points 25 that are located before the breakdown point. These signals, via a temporary adder 14, arrive at the telecontrol unit 15, which generates the corresponding code packages, which signal from serviceability of the corresponding unattended points 25 to the point of damage.

Similarly, the check of the return wires 13 of the remote power supply circuit at the second position of the switch 3 is carried out. At the same time, the negative and positive terminals of the auxiliary source 2 are connected respectively to the forward 12 and the reverse 3 wires. The supply voltage is supplied through the first 23 and second 24 optoelectronic units in all serviceable unattended points 25 to the point of damage.

Corresponding health signals are received through the time adder 14 to the telecontrol unit 15, which ensures the transmission of code signals about the number of the healthy unattended point 25. I

Thus, the proposed device provides a more complete and accurate control of the communication cables inspected separately when determining the place of breakage and disturbance, insulation.

Formula inventions

A device for determining the location of a malfunction in the remote power supply circuit of the communication line, containing at the serviced point an auxiliary source of remote power supply and a switch, and at each un-servicing point the first and second regenerators, the inputs of which are connected to the forward and backward wires respectively, series-connected time adder and a telecontrol unit, the outputs of which are connected to the telemechanics communication line, a series-connected diode and a second resistor in water which is connected to the wire straight chain remote Momo

power supply, characterized in that, in order to improve the accuracy of determining the location and type of malfunction, the first and second opto-electronic units, the first and second zener diodes, the anode and cathode of which are connected to the output of the first and BTOpoVo regenerators, as well as respectively, to the first inputs of the first and second optoelectronic units, the outputs of which are connected respectively to the first and second inputs of the temporary adder, and the second inputs of the first to the second optocoupler unit are connected respectively about with a cathode gnfvogo zener diode and the anode of the second zener diode connected

Editor N. Bobkova

Compiled by, Panitsky

Tehred I.Popovich Proofreader M. Pojo

Order 3126/56 Circulation 638 Subscription

VNIIPI USSR State Committee

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

 . "." - - -

Production and printing company, Uzhgorod, UL Proektna, k

ten

15

7 1 3

respectively, to the forward and reverse passages of the remote power circuit, the anode of the diode connected to the reverse wire of the remote power circuit, and the switch at the serviced point is made in three positions, with the first and second movable contacts of the switch connected to the negative and positive poles of the auxiliary remote power source, and the first second, third and fourth are fixed. - the switch contacts are connected respectively to the forward and return wires of the remote circuit power, and the fifth and sixth fixed contacts of the switch are connected to the common bus.

Claims (1)

Claim A device for determining the place of a malfunction in the remote power supply circuit of a communication line, containing an auxiliary remote power supply and a switch on a serviced item, and at each non-servicing item, the first and second regenerators, the inputs of which are connected to the forward and reverse wires of the remote power circuit, respectively, connected in series to the time adder and a telecontrol unit, the outputs of which are connected to a telemechanics communication line, a diode and a resistor connected in series, a second terminal which is connected to a direct wire of the remote power supply circuit, characterized in that, in order to improve the accuracy of determining the location and type of malfunction, the first and second optoelectronic units, the first and second zener diodes, the anode and cathode of which are connected respectively to the output of the first and second regenerators, as well as, respectively, to the first inputs of the first and second optoelectronic units, the outputs of which are connected respectively to the first and second inputs of the temporary adder, and the second inputs The first and second optocoupler blocks are connected respectively to the cathode of the first zener diode and the anode of the second zener diode, respectively connected to the direct and return wires of the remote power circuit, and the anode of the diode is connected to the return wire of the remote power circuit, and the switch at the serviced point is made three-position, the first and the second movable contacts of the switch are connected respectively to the minus and plus poles of the auxiliary remote power source, and the first W swarm, third and fourth fixed contacts connected respectively to switch forward and reverse wire remote power circuit, and the fifth and sixth stationary switch contacts are connected to a common bus.