CN212624822U - Novel overhead transmission line lightning conductor - Google Patents

Novel overhead transmission line lightning conductor Download PDF

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Publication number
CN212624822U
CN212624822U CN202021370190.3U CN202021370190U CN212624822U CN 212624822 U CN212624822 U CN 212624822U CN 202021370190 U CN202021370190 U CN 202021370190U CN 212624822 U CN212624822 U CN 212624822U
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China
Prior art keywords
conductor
transmission line
lightning
wire
conductor wire
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Active
Application number
CN202021370190.3U
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Chinese (zh)
Inventor
余德平
孟益标
梁增显
张勇豪
李金堂
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Zhejiang Wanma Co Ltd
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Zhejiang Wanma Co Ltd
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Priority to CN202021370190.3U priority Critical patent/CN212624822U/en
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Abstract

The utility model discloses a novel overhead transmission line lightning conductor, which comprises a conductor wire, wherein a protective sleeve is arranged outside the conductor wire, an insulating layer is arranged between the conductor wire and the protective sleeve, the protective sleeve is connected with a lightning arrester, the conductor wire is connected with a grounding lead, the conductor wire comprises a plurality of metal stranded wires and an optical fiber cable, conductive sand is arranged in the plurality of metal stranded wires, and the plurality of metal stranded wires and the optical fiber cable are twisted to form the conductor wire; the utility model discloses can be quick when overhead line suffers the thunderbolt lead-in ground of thunder and lightning electric current, prevent that transmission line from suffering the thunderbolt, also reduce the power consumption who causes because of the lightning conductor induced voltage simultaneously, provide the guarantee for transmission line steady operation.

Description

Novel overhead transmission line lightning conductor
Technical Field
The utility model relates to an electric power system transmission of electricity technical field especially relates to a novel overhead transmission line lightning conductor.
Background
An overhead transmission line is a main link in an electric power system, and is a main method for carrying out electric power transmission in modes of electric power transmission, exchange, regulation, distribution and the like. During working, because the overhead transmission line is erected outdoors, the overhead transmission line has the main characteristics and factors that the distribution area is wide, the environment of a passing area is complex, and different faults and form differences are easily formed under the restriction and influence of various factors. Once a transmission line fails, power supply safety and power supply efficiency of a power supply area may be caused, and in a severe case, even immeasurable loss may be caused, thereby endangering social safety and development.
Lightning damage is one of the most common disease forms in the current overhead transmission line, and overvoltage is formed due to the influence of thunderstorm weather and lightning in the normal transmission process, so that the influence on circuit transmission equipment is caused.
The overhead lightning conductor plays a decisive role in ensuring the power grid structure and the power system to operate safely and stably on the power transmission line; at present, the lightning conductor can not completely protect the power transmission line in some special cases (such as lightning around). The novel lightning conductor of the power transmission line can better protect the power transmission line from being struck by lightning and reduce the loss of the power transmission line.
In order to reduce the electric energy loss of a transmission line, high-voltage (110 kV-750 kV) alternating current is adopted for long-distance transmission at present, various geographical environmental conditions are passed by the high-voltage transmission line, so that the high-voltage transmission line passes through a plurality of lightning strike serious disaster areas and is difficult to avoid, in order to prevent the damage of the lightning strike, a lightning conductor (overhead ground wire) needs to be erected on the overhead line, the lightning conductor of the original traditional overhead line is a galvanized steel stranded wire and is erected at the top end of an iron tower and connected with a grounding lead, when the lightning strikes the transmission line, the lightning current can flow into the ground through the lightning conductor and the grounding lead too fast, the normal operation of the overhead line is ensured, but under some special conditions (such as lightning strike around), the traditional lightning conductor can not completely protect the transmission line from the lightning strike accidents, once the transmission line is struck by the lightning, immeasurable loss and influence are brought to national economy and resident life. Meanwhile, as the high-voltage alternating current transmitted by the overhead conductor generates induced voltage on the lightning conductor, and the lightning conductor is directly connected with the ground by adopting a bare copper stranded wire, the induced current passes through the lightning conductor, so that the power loss (P = I2R) is generated on the lightning conductor, and the defects of large power consumption and resource waste exist in the conventional lightning conductor.
For example, a "lightning conductor using a double split conductor for an extra-high voltage converter station" disclosed in chinese patent literature has a publication number: CN203747055U, filing date thereof: 27 th 12 th month in 2013, comprising two lightning conductors; the two parallel lightning conductors are connected between the two lightning conductor towers in parallel, one ends of the two parallel lightning conductors are in conductive connection with a top plate of the first lightning conductor tower, and the other ends of the two parallel lightning conductors are in conductive connection with a top plate of the second lightning conductor tower; the device also comprises a spacer; the two parallel lightning conductors are fixed by at least one spacer. The lightning conductor of this application does not improve the structure of itself of lightning conductor, only improves the mounted position and the quantity of lightning conductor, and it still uses the lightning conductor that traditional galvanized steel strand wires made, easily produces induction circuit when the lightning conductor carries out the lightning current drainage, causes the problem of the electric energy waste in a large number.
Disclosure of Invention
The utility model mainly solves the problems that the lightning conductor in the prior art is easy to generate induced current and cause electric energy waste when lightning current drainage is carried out; the utility model provides a novel overhead transmission line lightning conductor adopts brand-new structural design, ensures that the lightning conductor can play the protection transmission of electricity wire completely and does not receive the thunderbolt, has induced-current's production and cause the electric energy extravagant on the lightning conductor again simultaneously.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a novel overhead transmission line lightning conductor for connect arrester and ground lead, includes the conductor wire, the conductor wire is equipped with the protective sheath outward, install the insulating layer between conductor wire and the protective sheath, the protective sheath is connected with the arrester, the conductor wire is connected with ground lead, the conductor wire includes a plurality of metal strand wires and fiber optic cable, a plurality of the metal strand wires all embeds there is electrically conductive sand, a plurality of the metal strand wires and the fiber optic cable transposition form the conductor wire. The utility model discloses an overhead transmission line lightning-arrest line frame is established and is installed in the transmission line top, and the protective sheath is connected with the arrester when erectting, and the conductor wire is connected with the ground lead, can bear great pressure, also can not produce the eddy current loss in normal alternating current transmission process, reduces the loss of electric energy, built-in conductive sand for metal strand wires and fiber cable's transposition is inseparabler.
Preferably, the metal stranded wire is a stainless steel stranded wire. The stainless steel stranded wire is arranged, so that the eddy current loss cannot be generated in daily alternating current transportation.
Preferably, the material of the protective sleeve is a conductive material. The protective sleeve conductor is combined with the insulating layer and the inner conducting wire, so that the transformer is equivalent to a coupling transformer, and the electric energy loss is further reduced.
Preferably, the insulating layer is a polyethylene insulator. And the polyethylene material is adopted as the insulating layer, so that the insulating effect is better.
Preferably, the conductor material is aluminum. When the thunder and lightning hit novel overhead transmission line lightning conductor on, aluminium sheath resistance is a lot less than original galvanized steel strand wires, and lightning current can be quick like this by leading-in ground, protection transmission line normal operating ensures that the lightning conductor can play protection transmission of electricity wire completely and does not receive the thunderbolt.
Preferably, the diameter of the stainless steel stranded wire is more than or equal to 0.5 mm.
The utility model has the advantages that: the utility model discloses can be quick when overhead line suffers the thunderbolt lead-in ground of thunder and lightning electric current, prevent that transmission line from suffering the thunderbolt, also reduce the power consumption who causes because of the lightning conductor induced voltage simultaneously, provide the guarantee for transmission line steady operation.
Drawings
Fig. 1 is a schematic structural view of a lightning conductor according to the first embodiment.
In the figure, 1 is a conducting wire, 2 is an insulating layer, and 3 is a protective sleeve.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
The first embodiment is as follows: the utility model provides a novel overhead transmission line lightning conductor for connect arrester and ground lead, as shown in figure 1, including conductor wire 1, conductor wire 1 is equipped with protective sheath 3 outward, installs polyethylene insulating layer 2 between conductor wire 1 and the protective sheath 3, and protective sheath 3 is connected with the arrester, and conductor wire 1 is connected with ground lead, and conductor wire 1 includes a plurality of stainless steel strands and fiber optic cable, and a plurality of stainless steel strands all embed electrically conductive sand, and a plurality of stainless steel strands and fiber optic cable transposition form conductor wire 1.
The protective sleeve 3 is made of aluminum conductor material, and the diameter of the stainless steel stranded wire is more than or equal to 0.5 mm.
In specific application, the lightning protection wire is arranged between two tower poles and positioned above a power transmission line, the aluminum protective sleeve 3 is connected with a lightning arrester when the lightning protection wire is erected, and the stainless steel stranded wire is connected with a grounding lead wire, so that the lightning protection wire can bear large pulling force, eddy current loss cannot be generated in the normal alternating current transmission process, and the loss of electric energy is reduced; when the thunder and lightning hit novel overhead transmission line lightning conductor on, 3 resistance on the aluminium protective sheath are a lot less than original galvanized steel strand wires, and lightning current can be quick like this by leading-in ground, protection transmission line normal operating. In the operation process of a daily line, the inner conductor is made of stainless steel, so that eddy current cannot be generated, and in addition, a polyethylene insulating layer 2 exists between the outer conductor (the aluminum protective sleeve 3) and the inner conductor, which is equivalent to a coupling transformer, so that electric energy loss cannot be caused, and the stable operation of the overhead transmission line is guaranteed.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims (6)

1. The utility model provides a novel overhead transmission line lightning conductor for connect arrester and ground lead, a serial communication port, include:
the conductor wire, the conductor wire is equipped with the protective sheath outward, install the insulating layer between conductor wire and the protective sheath, the protective sheath is connected with the arrester, the conductor wire is connected with ground lead, the conductor wire includes a plurality of metal strand wires and fiber optic cable, a plurality of the metal strand wires all embed electrically conductive sand, a plurality of the metal strand wires and the transposition of fiber optic cable form the conductor wire.
2. The novel overhead transmission line lightning conductor according to claim 1,
the metal stranded wire is a stainless steel stranded wire.
3. A novel overhead transmission line lightning conductor according to claim 1 or 2,
the protective sleeve is made of a conductor material.
4. The novel overhead transmission line lightning conductor according to claim 1,
the insulating layer is a polyethylene insulator.
5. The novel overhead transmission line lightning conductor according to claim 3,
the conductor material is aluminum.
6. The novel overhead transmission line lightning conductor according to claim 2,
the diameter of the stainless steel stranded wire is more than or equal to 0.5 mm.
CN202021370190.3U 2020-07-13 2020-07-13 Novel overhead transmission line lightning conductor Active CN212624822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021370190.3U CN212624822U (en) 2020-07-13 2020-07-13 Novel overhead transmission line lightning conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021370190.3U CN212624822U (en) 2020-07-13 2020-07-13 Novel overhead transmission line lightning conductor

Publications (1)

Publication Number Publication Date
CN212624822U true CN212624822U (en) 2021-02-26

Family

ID=74706132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021370190.3U Active CN212624822U (en) 2020-07-13 2020-07-13 Novel overhead transmission line lightning conductor

Country Status (1)

Country Link
CN (1) CN212624822U (en)

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