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Line trap for transmission systems on medium/high voltage ac power lines

A technology of AC power supply and wave trap, applied in the direction of electrical components, impedance networks, multi-terminal pair networks, etc., can solve the problems of unreliable prevention of coil turns sliding or mutual movement, unreliable deflection, etc.

Active Publication Date: 2018-03-02
贝尔特尔股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The metal turns and spacers described above have the disadvantage that one coil turn cannot be reliably prevented from sliding or moving relative to each of its adjacent coil turns, or that the turns cannot be reliably prevented from flexing after a high voltage current has passed through the turn. song
[0008] Prior art documents US3991394A, US2497516A and DE2241975A discuss line traps for transmission systems on medium / high voltage AC power lines, but none of these documents disclose such windings made of conductive metal coil turns A wave trap formed in which each turn remains in a safe position relative to turns adjacent to said turn in a continuous helical coil winding or solenoid of which the turn forms a part

Method used

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  • Line trap for transmission systems on medium/high voltage ac power lines

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Embodiment Construction

[0020] will first refer to figure 1 , which shows a cutaway perspective view through a portion of a winding or solenoid formed from a continuous spiral of conductive metal coil turns and associated spacers forming a modular circuit A part of the wave trap, other parts or components of the modular line wave trap have been omitted since its structure is well known and obvious to a person skilled in the art.

[0021] The figure shows three parts of a metal coil turn 1 (which is wound as a solenoid in a line trap) held apart by spacers 2 of insulating material. The spacer may be formed from spacer pieces or sections that are separate but placed together in a continuous helix, with the turns being formed from a continuous rod of conductive metal such as Al or Cu, The rod is wound to form a continuous helix, with multiple side-by-side turns spaced apart by spacers 2 .

[0022] The main feature of the line trap according to the invention is that the coil turn 1 has a substantially ...

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Abstract

The invention provides line traps for transmission systems on medium / high voltage AC power lines, each trap comprising a metal coil (1) and a spacer (2).

Description

technical field [0001] The invention relates to a line trap for transmission systems on medium / high voltage AC medium / high voltage. Background technique [0002] Line traps are well known and widely used for transmission (by means usually indicated by the symbol PLC) of electrical waves transmitted along medium / high voltage AC power lines, i.e. for segmented transmission of signals along long distance lines, Information, voice and data, the segments of these long-distance lines are delimited by line traps connected in series with the line to form a high impedance for the frequency of signal transmission and a high impedance for the frequency of the current carried by the medium / high voltage line Negligible impedance. Because these line traps must be able to withstand high voltage line currents (whose voltage can be tens of KV or hundreds of KV) and short-term short-circuit currents at the point where these coils are installed, these line traps are subject to very high stre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H7/06
Inventor G·贝托里尼
Owner 贝尔特尔股份公司