RU186734U1 - PASSIVE TRANSMITTER - SIGNAL PLC CHARGER ON 6-35 kV VOLTAGE ELECTRIC TRANSMISSIONS - Google Patents

Abstract

The utility model relates to a communication system for overhead power lines using PLC technology, and more particularly to communication devices with passive signal booster amplifiers. Passive repeater is a suppressor of a plc signal on overhead power lines with a voltage of 6-35 kV, consisting of wires for connecting to overhead power lines power lines, as well as a capacitor connected by an additional wire. It is additionally equipped with two high-voltage capacitors, from 1 to 2 nF, which are connected by wires to high-voltage PLC amplification transformers with a frequency of 20 to 34 MHz, made with a doubled number of turns on the secondary winding. The device operates on the principle of passing the received signal through the arresters in the form of capacitors with an output to ground, through high-voltage transformers with an increased number of turns on the secondary winding, to increase the distance of signal transmission in a passive way along overhead lines ES using PLC technology.

Description

The invention relates to a communications system using overhead power transmission lines using PLC technology, and more particularly, to communication devices with passive signal traps.

Known reflective antenna array (USSR author's certificate No. 1022245, publ. 06/07/1983). Consisting of an irradiator and a reflector, made in the form of a metal screen, with re-emitters placed parallel to its surface, made in the form of metal disks, in each of which a radial gap is cut.

The disadvantages of this repeater are the distortion of the transmitted information for low-channel broadband messages, as well as the low efficiency of signal amplification

Known high-frequency trap and protective device of a high-frequency trap (RF patent No. 12311, publ. 16.12.1999) containing parallel connected power reactor, tuner and protective device, the tuner is formed by a capacitor and a serial RLC circuit, which is connected in parallel with the capacitor.

The disadvantages of the device are the decrease in electrical strength during transients that occur inside the tuner from the effects of overvoltages from the electrical network.

Known high-frequency choke (RF patent No. 41927, publ. 10.11.2004) containing a power reactor connected in parallel with each other, a protective device in the form of a surge protector and a tuner consisting of a first capacitor connected in parallel with a protective device and connected in parallel to the first capacitor of the circuit connected in series to the second capacitor, and a third capacitor introduced in parallel with the second inductor, the first inductor and connected parallel to each other of the resistor and the second inductor.

The disadvantages of the device are the decrease in electrical strength during transients that occur inside the tuner from the effects of overvoltages from the electrical network.

Known passive repeater (USSR author's certificate No. 1408481, publ. 07/07/1988), consisting of a radio-opaque ring and a flat dielectric disk mounted concentrically with the radio-opaque ring in the same plane.

The disadvantage of this repeater is the low level of communication stability when changing the angles of arrival of the wave, as well as poor dispersion characteristics of the relay signal.

Known passive repeater (JPH 10209732 A SANWA INSATSU KK, 08/07/1998). This passive repeater contains many closed parts made of various metals, the electrodes of which are connected to a flat base on one side of the receiving section with the formation of a metal circuit in which the pairs of electrodes are parallel to each other.

A disadvantage of the known passive amplifier is the high complexity of the design, this repeater is easily affected by electromagnetic interference, which significantly reduces the amplification efficiency of the radio signal.

Known high-frequency suppressor for linear communication channels (USSR author's certificate No. 132319, publ. 00.00.1960), adopted as a prototype, containing inductance and in parallel connected with it the required capacity, terminals for connecting to the power line, a capacitor connected by an additional wire.

A disadvantage of the known device is the narrow focus, the lack of the ability to relay the signal, low efficiency of protection against pulses.

The technical result is to expand the scope of relay devices, increasing the distance of signal transmission between repeaters, the use of which will help to create a favorable environment for transmitting data overhead power lines using PLC technology.

The technical result is achieved by the fact that two high-voltage capacitors are additionally installed, from 1 to 2 nF, which are connected by wires to high-voltage PLC amplification transformers with a frequency of 20 to 34 MHz, made with a doubled number of turns on the secondary winding.

The device is illustrated by the following figure:

FIG. 1 is a general diagram;

1 - phase of the alternating current;

2 - terminals for connecting the device to the network;

3 - high voltage capacitor, from 1 to 2 nF;

1 - phase of the alternating current;

2 - terminals for connecting the device to the network;

3 - high voltage capacitor, from 1 to 2 nF;

4 - high-voltage capacitor of not less than 0.1 μF, and not more than 1 μF;

5 - transformer amplification of PLC frequencies from 2 to 15 MHz;

6 - transformer amplification of PLC frequencies from 20 to 34 MHz;

7 - terminals for connecting a neutral wire;

8 - transmission line support;

Passive repeater - signal plc suppressor

On the power line section, the terminals for connecting the device to network 2 (Fig. 1) are connected to high-voltage capacitors, from 1 to 2 nF 3, as well as to a high-voltage capacitor of at least 0.1 μF and not more than 1 μF 4. Transformer gain A PLC frequency from 2 to 15 MHz 5 is installed in series and connected by a copper wire with a cross section of 1 mm to a transformer PLC frequency amplification from 20 to 34 MHz 6. A PLC frequency gain transformer from 2 to 15 MHz 5 and a PLC frequency transformer from 20 to 34 MHz 6 connected in series with the terminal for neutral 7 th wires for grounding to the anvil 8. The transmission line transformer gain PLC frequencies from 2 MHz to 15 MHz and the transformer 5 strengthening PLC frequencies from 20 MHz to 34 6 are enlarged twice the number of turns on the secondary winding.

The operation of the device is as follows. The device under development provides for connecting to an alternating current network through which a signal will be transmitted at three points through the terminals, for connecting the device to network 2. The distance between connecting terminals for connecting the device to the network 2 is at least 1 meter. Two terminals for connecting to network 2 are connected to two high-voltage capacitors from 1 to 2 nF 3, to protect the transformer for amplification of the PLC frequency from 2 to 15 MHz 5, and the transformer for amplification of the PLC frequency from 20 to

34 MHz 6 from high voltage. The third terminal for connecting to network 2 is connected to a high-voltage capacitor of at least 0.1 μF, and not more than 1 μF 4 to suppress mutual harmonics. Next, two high-voltage capacitors, from 1 to 2 nF 3 and a high-voltage capacitor of at least 0.1 μF, and not more than 1 μF 4 are connected by a copper wire with a cross section of 1 mm to a PLC amplification transformer of frequencies from 2 to 15 MHz 5 and a PLC amplification transformer of frequencies from 20 to 34 MHz 6, having a doubled number of turns on the secondary winding, to enhance the relay signal.

The device operates on the principle of transmitting the received signal through the arresters in the form of capacitors with grounding, through high-voltage transformers with an increased number of turns on the secondary winding, to increase the distance of signal transmission in a passive way via high-voltage lines using PLC technology.

Claims (1)

Passive repeater - PLC signal suppressor on overhead power lines with a voltage of 6-35 kV, consisting of wires for connecting to overhead power lines, as well as a capacitor connected by an additional wire between two supports of power lines to one of three phases, characterized in that they are additionally installed two high-voltage capacitors from 1 to 2 nF, which are connected by wires to a high-voltage PLC amplification transformer of frequency from 20 to 34 MHz and a PLC amplification transformer of frequency from 2 to 15 MHz, ennymi enlarged twice the number of turns on the secondary winding, which in turn are connected to ground via the neutral wire.

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