CN206259194U - For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable - Google Patents
For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable Download PDFInfo
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- CN206259194U CN206259194U CN201621138234.3U CN201621138234U CN206259194U CN 206259194 U CN206259194 U CN 206259194U CN 201621138234 U CN201621138234 U CN 201621138234U CN 206259194 U CN206259194 U CN 206259194U
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Abstract
For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable, the ladder-shaped stranded conductor includes the solid soft copper bar, the first ladder-shaped layer, the second ladder-shaped layer, the 3rd ladder-shaped layer, the 4th ladder-shaped layer, the 5th ladder-shaped layer that set gradually from inside to outside；The first ladder-shaped layer includes the 8 ladder-shaped conductors for forming a circle, the second ladder-shaped layer includes the 12 ladder-shaped conductors for forming a circle, the 3rd ladder-shaped layer includes the 16 ladder-shaped conductors for forming a circle, the 4th ladder-shaped layer includes the 22 ladder-shaped conductors for forming a circle, and the 5th ladder-shaped layer includes the 24 ladder-shaped conductors for forming a circle；Material water-proof material is filled with space between the ladder-shaped conductor.Conductor in the utility model, can be used for heavy in section conductor structure design, save raw material, and block-water effect is good, and stability is high, with good development prospect.
Description
Technical field
The utility model belongs to field of cables, and in particular to a kind of for the trapezoidal of heavy in section high voltage direct current cable and extra large cable
Molded line stranded conductor.
Background technology
Technology of HVDC based Voltage Source Converter（VSC systems）Be one kind with voltage source converter, controllable shut-off device and pulsewidth modulation
VSC-HVDC technology based on technology, with can monopolar operation, Power Control is simple, line loss is small, transmission range
Long the features such as, the back-to-back connection of alternating current can be realized, and the built by separate periods and compatilizing mechanism of engineering can be carried out, it is especially suitable
Contact between different frequency or the AC system of the aperiodic operation of same frequency (new energy such as wind energy, tide energy) and remote
High-power seabed power transmission.
High voltage direct current cable and extra large cable with its power supply have it is safe and reliable, pollute small the features such as, in city electric distribution system and
Increasingly it is widely applied in remote seabed transmission of electricity.Heavy in section long length high voltage direct current cable and extra large cable are from now on
The inexorable trend of development.Such as, publication No. for CN103123823A Chinese invention patent application in disclose a kind of flexible transmission
The sky formed with direct current electric unit with direct current submarine cable, including two direct current electric units for being surrounded by inner liner outward, inner liner
Being filled in gap expires packing, and the flat armor of at least one of which is provided with outside inner liner, is surrounded with outside flat armor and drapes over one's shoulders layer outward, directly
Stream electric unit includes the water-blocking conductor, internal shield, insulating barrier and the external shielding layer that set gradually from inside to outside, external shielding layer it is outer around
Semiconductor waterstop is surrounded by, lead set and sheath are disposed with outside semiconductor waterstop, the material of insulating barrier is poly- for direct current is crosslinked
The material of ethene, internal shield and external shielding layer is that direct current shields material；The transfer efficiency of the direct current submarine cable is high, line loss is small,
Be conducive to remote large capacity transmission, and can easily be accommodated electric current and change power direction of transfer, stability is high.
At present, how rationally in the external diameter of effective control cable, the consumption high voltage direct current cable of reduction material one
Research direction, the utility model is studied on this direction.
Utility model content
In view of the shortcomings of the prior art, the utility model provide it is a kind of for heavy in section high voltage direct current cable and the ladder of extra large cable
Shape molded line stranded conductor, can improve the fill factor of conductor, on the premise of resistance is met, reduce conductor diameter.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals.
For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable, the ladder-shaped stranded conductor bag
Include set gradually from inside to outside solid soft copper bar, the first ladder-shaped layer, the second ladder-shaped layer, the 3rd ladder-shaped layer,
4th ladder-shaped layer, the 5th ladder-shaped layer；The first ladder-shaped layer includes that 8 ladder-shapeds for forming a circle are led
Body, the second ladder-shaped layer includes the 12 ladder-shaped conductors for forming a circle, and the 3rd ladder-shaped layer includes enclosing
Into 16 ladder-shaped conductors of a circle, the 4th ladder-shaped layer includes the 22 ladder-shaped conductors for forming a circle, institute
Stating the 5th ladder-shaped layer includes the 24 ladder-shaped conductors for forming a circle；Filled out in space between the ladder-shaped conductor
Filled with material water-proof material.
Relative to the direct current high voltage cable that the conductive core of circular cross-section of the prior art is made, pass through in the utility model
Replace round compacted comductor with ladder-shaped stranded conductor, highest can be realized by the ladder-shaped from different specification size
Up to 3500mm2The design of the cable conductor in section, this point is difficult on round conductor.With conventional DC high-tension cable and
The conductor of extra large cable is compared, and this technology can be greatly reduced external diameter, save material, while structure is more stablized, is easy to height
The long-distance sand transport of straightening stream, for submarine cable, more saves material water-proof material, increases block-water effect.
Preferably, the material water-proof material is waterproof paste, fill factor >=96% of waterproof paste reduces external diameter, saves material
Material.
Preferably, the smooth outer surface of the 5th ladder-shaped layer, makes the appearance Surface charge distribution stabilization of conductor, carry
The quality of height insulation, improves the stability of cable.
Preferably, TR soft copper bar of the solid soft copper bar for diameter 11.5mm, the ladder-shaped conductor is electrician
Copper into ladder-shaped conductor, long service life, electrical conductivity is high, meets national standard.
Compared with prior art, the utility model has the advantages that：There is provided a kind of filled with material water-proof material
Ladder-shaped stranded conductor, can be used for heavy in section conductor structure design, save raw material, and block-water effect is good, and stability is high, tool
There is good development prospect.
Brief description of the drawings
Fig. 1 is the structural representation of ladder-shaped stranded conductor of the present utility model.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Reference picture 1, for heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable, the ladder-shaped is twisted
Closing conductor includes the solid soft copper bar 1, the first ladder-shaped the 2, second ladder-shaped of the layer layer the 3, the 3rd that set gradually from inside to outside
Ladder-shaped layer the 4, the 4th ladder-shaped the 5, the 5th ladder-shaped of layer layer 6；The first ladder-shaped layer 2 includes what is formed a circle
8 ladder-shaped conductors, the second ladder-shaped layer 3 includes the 12 ladder-shaped conductors for forming a circle, the 3rd ladder
Shape molded line layer 4 includes the 16 ladder-shaped conductors for forming a circle, and the 4th ladder-shaped layer 5 includes 22 formed a circle
Ladder-shaped conductor, the 5th ladder-shaped layer 6 includes the 24 ladder-shaped conductors for forming a circle；The ladder-shaped is led
Material water-proof material is filled with space between body.
In present embodiment, the material water-proof material is waterproof paste, fill factor >=96% of waterproof paste；Described 5th is trapezoidal
The smooth outer surface of molded line layer 6, makes the appearance Surface charge distribution stabilization of conductor, improves the quality of insulation.
In a kind of specific embodiment of the present utility model, cross-sectional area of conductor is 3000mm2, solid soft copper bar 1 therein is straight
The TR soft copper bars of footpath 11.5mm, the ladder-shaped conductor be electrician's copper into ladder-shaped conductor, ladder-shaped conductor is
Meet TR trade mark electrician's circular copper wires of the equivalent diameter of standard GB/T3953-2009, conversion diameter between listed by standard close to
When between two values, using the respective performances of larger nominal diameter value.
In sum, the utility model is applied to direct current high voltage cable and extra large cable, by with ladder-shaped stranded conductor generation
Can realize reaching as high as 3500mm for round compacted comductor and from the ladder-shaped of different specification size2The cable conductor in section
Design, the conductor of this structure can save material compared with common ac cable conductor, be easy to the remote of HVDC
Conveying, for submarine cable, can save material water-proof material, increase block-water effect, while surface charge distribution stabilization, improves
The quality of insulation, improves the stability of cable, with good development prospect.
Protection domain of the present utility model includes but is not limited to embodiment of above, and protection domain of the present utility model is weighing
Sharp claim is defined, and any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within
Protection domain of the present utility model.
Claims (4)
1. the ladder-shaped stranded conductor of heavy in section high voltage direct current cable and extra large cable is used for, it is characterised in that the ladder-shaped
Stranded conductor includes the solid soft copper bar for setting gradually from inside to outside（1）, the first ladder-shaped layer（2）, the second ladder-shaped layer
（3）, the 3rd ladder-shaped layer（4）, the 4th ladder-shaped layer（5）, the 5th ladder-shaped layer（6）；The first ladder-shaped layer
（2）Including the 8 ladder-shaped conductors for forming a circle, the second ladder-shaped layer（3）12 including forming a circle trapezoidal
Molded line conductor, the 3rd ladder-shaped layer（4）Including the 16 ladder-shaped conductors for forming a circle, the 4th ladder-shaped
Layer（5）Including the 22 ladder-shaped conductors for forming a circle, the 5th ladder-shaped layer（6）Including 24 ladders for forming a circle
Shape molded line conductor；Material water-proof material is filled with space between the ladder-shaped conductor.
2. according to claim 1 for heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable, it is special
Levy and be, the material water-proof material is waterproof paste, fill factor >=96% of waterproof paste.
3. according to claim 2 for heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable, it is special
Levy and be, the 5th ladder-shaped layer（6）Smooth outer surface.
4. the ladder-shaped for heavy in section high voltage direct current cable and extra large cable according to any one of claims 1 to 3 is stranded
Conductor, it is characterised in that the solid soft copper bar（1）It is the TR soft copper bars of diameter 11.5mm, the ladder-shaped conductor is electricity
Work copper into ladder-shaped conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138234.3U CN206259194U (en) | 2016-10-20 | 2016-10-20 | For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138234.3U CN206259194U (en) | 2016-10-20 | 2016-10-20 | For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206259194U true CN206259194U (en) | 2017-06-16 |
Family
ID=59022607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621138234.3U Active CN206259194U (en) | 2016-10-20 | 2016-10-20 | For heavy in section high voltage direct current cable and the ladder-shaped stranded conductor of extra large cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206259194U (en) |
-
2016
- 2016-10-20 CN CN201621138234.3U patent/CN206259194U/en active Active
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