SU1192144A1 - Device for information transmission via phase wires of electric power lines - Google Patents

Abstract

DEVICE FOR TRANSMITTING INFORMATION BY phase conductor LINRSH TRANSMISSION comprising a high-frequency chokes, incorporated at the ends of the transmission lines in the gap phase conductor between the respective line substation and attachment point series-connected capacitor communication coupling filter and compaction apparatus earthing knife, whose fixed terminal is connected to the input of the attachment filter, and the movable contact of the grounding knife, as well as the second outputs of the attachment filter and apparatus lotneni earthed, characterized in that, in order to reduce the loss of high-frequency signal introduced matching capacitors first electrode which are incorporated at the ends of the phase conductors of power lines between the respective substation bus and high-frequency chokes, each soder-. lives in parallel the first inductance, the first capacitor and the chain of series-connected second inductance and the second capacitor, and the second plates of matching capacitors are grounded-. (Loops, each filter device contains connected in parallel the first capacitor and the first inductance, the first terminals of which are connected to the second plate of the coupling capacitor, and the second terminals of the first capacitor and the first inductance are connected in series with the second inductance and the second capacitor, the second plate which is connected to the input of the apparatus N (; sealing tours, and the first terminal of the third inductance is connected to the junction point NU of the second inductance and the second capacitor a swarm whose output is grounded.

Description

1 The invention relates to electrical engineering, in particular to information transmission systems for phase conductors of power lines with a voltage of 35 kV. The purpose of the invention is to reduce the loss of a high frequency signal. FIG. 1 shows a block diagram of a device for transmitting information over the phase conductors of power lines; in fig. 2 — Realization of a high-frequency barrier and filter attachment. The device contains (Fig. 1) the façade wires 1, the high-frequency protector 2, the coupling capacitor 3, the connection filters 4, the sealing equipment 5, the grounding blades of the substation bus 7, the matching capacitors 8. The high-frequency contactor 2 (Fig. 2) contains the first inductance 9, the first capacitor 10, the inductance 11, the second capacitor 12. 777 / Y 4.2 Connection filter 4. (Fig. 2) contains the first inductance 13, the first capacitor 14, the second inductance 15., the third inductance 16, the second capacitor 16. The device works as follows azom. The information transmission channel is formed by a circuit of serially connected seal equipment 5, an attachment filter 4, a coupling capacitor 3 at the first end of the transmission lines, a phase conductor 1 and serially connected communication capacitor 3, an attachment filter 4, and a seal equipment 5 at the other end of the transmission line. . The features of the implementation of the filter of attachment 4 and the high-frequency prohibitor 2 (Fig. 2) make it possible to organize information transmission channels in two bands arranged randomly on the frequency axis. 7 7 7 / / /

Claims (1)

DEVICE FOR TRANSMISSION OF INFORMATION ON PHASE WIRES OF ELECTRIC TRANSMISSION LINES, containing high-frequency arresters included at the ends of the power lines in the gap of the phase wire between the corresponding substation line and the connection point of the communication capacitor connected in series, the connection filter and the sealing equipment, the grounding knife of which has a fixed contact, the input terminal of which has a fixed contact the connection filter, and the movable contact of the grounding knife, as well as the second outputs of the connection filter and equipment seal grounding, characterized in that, in order to reduce the loss of high-frequency signal, matching capacitors are introduced, the first plates of which are included at the ends of the phase wire of the power lines between the corresponding substation bus and a high-frequency choke, each of which contains a first inductance, a first capacitor and a circuit connected in parallel from the second inductance and the second capacitor connected in series, and the second plates of the matching capacitors are grounded, each filter with The manual contains a parallel connected first capacitor and first inductance, the first terminals of which are connected to the second plate of the coupling capacitor, and the second terminals of the first capacitor and first inductance are connected to the second inductance and the second capacitor connected in series, the second plate of which is connected to the input of the sealing equipment, and the connection point of the second inductance and the second capacitor is connected to the first terminal of the third inductance, the second terminal of which is grounded. SU ,,, 1192144 1192144.