CN204680470U - Ultra high voltage large capacity transmission wire - Google Patents
Ultra high voltage large capacity transmission wire Download PDFInfo
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- CN204680470U CN204680470U CN201520419218.0U CN201520419218U CN204680470U CN 204680470 U CN204680470 U CN 204680470U CN 201520419218 U CN201520419218 U CN 201520419218U CN 204680470 U CN204680470 U CN 204680470U
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Abstract
The utility model discloses a kind of ultra high voltage large capacity transmission wire, comprises the tension unit that is positioned at center and stranded the first duralumin conductive layer in tension unit outer surface, the second duralumin conductive layer, the first trapezoidal conductive layer and the second trapezoidal conductive layer successively; Described first trapezoidal conductive layer forms by 19 ~ 21 first trapezoidal aluminium single lines are stranded, to be that the second trapezoidal aluminium single line of isosceles trapezoid is stranded by 24 ~ 26 cross sections form second trapezoidal conductive layer, all having a cross section in described first trapezoidal aluminium single line, the second trapezoidal aluminium single line is circular copper conductor, first circular steel twisted wire, the second circular steel twisted wire and the 3rd circular steel twisted wire are all made up of some steel wires and its outer surface is all coated with an aluminium lamination, are filled with polyester gluing filling part in described aluminium lamination between some steel wires.The utility model reduces the effect of the AC impedance (resistance) that high order harmonic component produces, and under the prerequisite not improving cross section, improves transmission line capability, original corridor does not change steel tower substantially, reach increase-volume 68%, ampacity is large, quality is light, sag characteristic is good, extend the useful life of circuit.
Description
Technical field
The utility model relates to a kind of transmission pressure, particularly relates to a kind of ultra high voltage large capacity transmission wire.
Background technology
Chinese national economy continues rapid growth to the demand of electric power in continuous increase, according to the planning of Guo Wang Construction Company Limited, will focus the consruction in recent years ± 800kV and above UHV transmission line.Transmission line construction, need more large-section lead but do not wish wire by wind impact strengthen.We design existing large cross section for this reason, have the extraordinary electric power conveying electricity wire reducing windage.Traditional wire, its single line structure is made up of circular single line, very large by high altitude wind effect after single line is stranded, causes wire to be subject to very large wind-force effect, overhead line structures are also subject to great wind-force effect, for the wire that cross section is little, its effect performance is not clearly, but for the wire of cross section more than 1000, due to this defect, cause the requirement that can not meet the transmission of modern power network large-capacity power, therefore need to develop a kind of novel wire, to meet the needs of China's power industry development.
Summary of the invention
The utility model provides a kind of ultra high voltage large capacity transmission wire, this ultra high voltage large capacity transmission wire reduces the effect of the AC impedance (resistance) that high order harmonic component produces, under the prerequisite not improving cross section, improve transmission line capability, original corridor does not change steel tower substantially, reaches increase-volume 68%, ampacity is large, quality is light, sag characteristic is good, extend the useful life of circuit, meet the requirement of modern power network large-capacity power transmission.
For achieving the above object, the technical solution adopted in the utility model is: a kind of ultra high voltage large capacity transmission wire, comprise the tension unit that is positioned at center and stranded the first duralumin conductive layer in tension unit outer surface, the second duralumin conductive layer, the first trapezoidal conductive layer and the second trapezoidal conductive layer successively, described first trapezoidal conductive layer is positioned at the second duralumin conductive layer outer surface, and described second trapezoidal conductive layer is positioned at the first trapezoidal conductive layer outer surface;
Described tension unit is made up of 1 first circular steel twisted wire, 6 second circular steel twisted wires and 12 the 3rd circular steel twisted wires, 6 second circular steel wires are stranded forms middle tensile layer in the first circular steel wire outer surface, and 12 the 3rd circular steel wires are stranded forms outer tensile layer in middle tensile layer outer surface;
Described first circular steel twisted wire, the second circular steel twisted wire and the 3rd circular steel twisted wire are all made up of some steel wires and its outer surface is all coated with an aluminium lamination, are filled with polyester gluing filling part in described aluminium lamination between some steel wires;
To be that circular the first circular aluminum single line is stranded by 10 ~ 14 cross sections form described first duralumin conductive layer, and to be that circular the second circular aluminum single line is stranded by 16 ~ 20 cross sections form described second duralumin conductive layer;
Described first trapezoidal conductive layer forms by 19 ~ 21 first trapezoidal aluminium single lines are stranded, to be that the second trapezoidal aluminium single line of isosceles trapezoid is stranded by 24 ~ 26 cross sections form second trapezoidal conductive layer, all having a cross section in described first trapezoidal aluminium single line, the second trapezoidal aluminium single line is circular copper conductor, the sectional area of this copper conductor be the first trapezoidal aluminium single line, the second trapezoidal aluminium single line sectional area 35 ~ 45%.
The technical scheme improved further in technique scheme is as follows:
1., in such scheme, the area of section of described tension unit accounts for the total cross-sectional area 9 ~ 12% of falling blast wire.
2. in such scheme, in described first duralumin conductive layer, the first circular aluminum single line direction of lay is dextrad, and in described second duralumin conductive layer, the second circular aluminum single line direction of lay is left-hand.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the utility model ultra high voltage large capacity transmission wire, its first trapezoidal conductive layer is positioned at the second duralumin conductive layer outer surface, described second trapezoidal conductive layer is positioned at the first trapezoidal conductive layer outer surface, first trapezoidal aluminium single line, all having a cross section in second trapezoidal aluminium single line is circular copper conductor, the sectional area of this copper conductor is the first trapezoidal aluminium single line, 35 ~ 45% of the sectional area of the second trapezoidal aluminium single line, circular copper conductor is provided with in the trapezoidal aluminium single line that cross section is isosceles trapezoid, reduce the effect of the AC impedance (resistance) that high order harmonic component produces, under the prerequisite not improving cross section, improve transmission line capability, original corridor does not change steel tower substantially, reach increase-volume 68%, ampacity is large, quality is light, sag characteristic is good, extend the useful life of circuit, meet the requirement of modern power network large-capacity power transmission.
2. the utility model ultra high voltage large capacity transmission wire, it comprises the tension unit that is positioned at center and stranded in the first duralumin conductive layer of tension unit outer surface successively, second duralumin conductive layer, first trapezoidal conductive layer and the second trapezoidal conductive layer, to be that circular the first circular aluminum single line is stranded by 10 ~ 14 cross sections form first duralumin conductive layer, to be that circular the second circular aluminum single line is stranded by 16 ~ 20 cross sections form described second duralumin conductive layer, described first trapezoidal conductive layer forms by 19 ~ 21 first trapezoidal aluminium single lines are stranded, second trapezoidal conductive layer by 24 ~ 26 cross sections be the second trapezoidal aluminium single line of isosceles trapezoid stranded and, the wire that design is produced is extremely tight, space availability ratio is up to 93%, smooth surface, not concavo-convex, make wire windward surface area greatly reduce, produce and reduce wind effects.
3. the utility model ultra high voltage large capacity transmission wire, first circular steel twisted wire, the second circular steel twisted wire and the 3rd circular steel twisted wire described in it are all made up of some steel wires and its outer surface is all coated with an aluminium lamination, polyester gluing filling part is filled with in described aluminium lamination between some steel wires, make stranded tension unit rounding, also be conducive to fixing twisting pitch, ensure that the advantage keeping bending diameter little for a long time.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model ultra high voltage large capacity transmission conductor structure schematic diagram;
Accompanying drawing 2 is tension cellular construction schematic diagram in accompanying drawing 1.
In above accompanying drawing: 1, tension unit; 2, the first duralumin conductive layer; 21, the first circular aluminum single line; 3, the second duralumin conductive layer; 31, the second circular aluminum single line; 4, the first trapezoidal conductive layer; 41, the first trapezoidal aluminium single line; 5, the second trapezoidal conductive layer; 51, the second trapezoidal aluminium single line; 6, the first circular steel twisted wire; 7, middle tensile layer; 71, the second circular steel twisted wire; 8, outer tensile layer; 81, the 3rd circular steel twisted wire; 9, copper conductor; 10, aluminium lamination; 11, polyester gluing filling part; 12, steel wire.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment 1: a kind of ultra high voltage large capacity transmission wire, comprise the tension unit 1 that is positioned at center and stranded in the first duralumin conductive layer 2, second duralumin conductive layer 3, first trapezoidal conductive layer 4 and the second trapezoidal conductive layer 5 of tension unit 1 outer surface successively, described first trapezoidal conductive layer 4 is positioned at the second duralumin conductive layer 3 outer surface, and described second trapezoidal conductive layer 5 is positioned at the first trapezoidal conductive layer 4 outer surface;
Described tension unit 1 is made up of 1 first circular steel twisted wire, 6,6 second circular steel twisted wires, 71 and 12 the 3rd circular steel twisted wires 81,6 second circular steel wires 71 are stranded forms in the first circular steel wire 6 outer surface that middle tensile layer 7,12 the 3rd circular steel wires 81 are stranded forms outer tensile layer 8 in middle tensile layer 7 outer surface;
Described first circular steel twisted wire 6, second circular steel twisted wire 71 and the 3rd circular steel twisted wire 81 are all made up of some steel wires and its outer surface is all coated with an aluminium lamination 10, are filled with polyester gluing filling part 11 in described aluminium lamination 10 between some steel wires 12;
To be that circular the first circular aluminum single line 21 is stranded by 10 ~ 14 cross sections form described first duralumin conductive layer 2, and to be that circular the second circular aluminum single line 31 is stranded by 16 ~ 20 cross sections form described second duralumin conductive layer 3;
To be that the first trapezoidal aluminium single line 41 of isosceles trapezoid is stranded by 19 ~ 21 cross sections form described first trapezoidal conductive layer 4, to be that the second trapezoidal aluminium single line 51 of isosceles trapezoid is stranded by 24 ~ 26 cross sections form second trapezoidal conductive layer 5, all having a cross section in the trapezoidal aluminium single line 51 of described first trapezoidal aluminium single line 41, second is circular copper conductor 9, and the sectional area of this copper conductor 9 is 35 ~ 45% of the sectional area of the trapezoidal aluminium single line 51 of the first trapezoidal aluminium single line 41, second.
The area of section of above-mentioned tension unit 1 accounts for the total cross-sectional area 10% of falling blast wire.
Embodiment 2: a kind of ultra high voltage large capacity transmission wire, comprise the tension unit 1 that is positioned at center and stranded in the first duralumin conductive layer 2, second duralumin conductive layer 3, first trapezoidal conductive layer 4 and the second trapezoidal conductive layer 5 of tension unit 1 outer surface successively, described first trapezoidal conductive layer 4 is positioned at the second duralumin conductive layer 3 outer surface, and described second trapezoidal conductive layer 5 is positioned at the first trapezoidal conductive layer 4 outer surface;
Described tension unit 1 is made up of 1 first circular steel twisted wire, 6,6 second circular steel twisted wires, 71 and 12 the 3rd circular steel twisted wires 81,6 second circular steel wires 71 are stranded forms in the first circular steel wire 6 outer surface that middle tensile layer 7,12 the 3rd circular steel wires 81 are stranded forms outer tensile layer 8 in middle tensile layer 7 outer surface;
Described first circular steel twisted wire 6, second circular steel twisted wire 71 and the 3rd circular steel twisted wire 81 are all made up of some steel wires and its outer surface is all coated with an aluminium lamination 10, are filled with polyester gluing filling part 11 in described aluminium lamination 10 between some steel wires 12;
To be that the first trapezoidal aluminium single line 41 of isosceles trapezoid is stranded by 19 ~ 21 cross sections form described first trapezoidal conductive layer 4, to be that the second trapezoidal aluminium single line 51 of isosceles trapezoid is stranded by 24 ~ 26 cross sections form second trapezoidal conductive layer 5, all having a cross section in the trapezoidal aluminium single line 51 of described first trapezoidal aluminium single line 41, second is circular copper conductor 9, and the sectional area of this copper conductor 9 is 35 ~ 45% of the sectional area of the trapezoidal aluminium single line 51 of the first trapezoidal aluminium single line 41, second.
The area of section of above-mentioned tension unit 1 accounts for the total cross-sectional area 12% of falling blast wire.
In above-mentioned first duralumin conductive layer 2, the first circular aluminum single line 21 direction of lay is dextrad, and in described second duralumin conductive layer 3, the second circular aluminum single line 31 direction of lay is left-hand.
When adopting above-mentioned ultra high voltage large capacity transmission wire, it reduces the effect of the AC impedance (resistance) that high order harmonic component produces, under the prerequisite not improving cross section, improve transmission line capability, original corridor does not change steel tower substantially, reaches increase-volume 68%, ampacity is large, quality is light, sag characteristic is good, extend the useful life of circuit, meet the requirement of modern power network large-capacity power transmission; Secondly, the wire that design is produced is extremely tight, and space availability ratio is up to 93%, and smooth surface, does not have concavo-convex, make wire windward surface area greatly reduce, produce and reduce wind effects.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection range of the present utility model.
Claims (3)
1. a ultra high voltage large capacity transmission wire, it is characterized in that: comprise the tension unit (1) that is positioned at center and stranded the first duralumin conductive layer (2) in tension unit (1) outer surface, the second duralumin conductive layer (3), the first trapezoidal conductive layer (4) and the second trapezoidal conductive layer (5) successively, described first trapezoidal conductive layer (4) is positioned at the second duralumin conductive layer (3) outer surface, and described second trapezoidal conductive layer (5) is positioned at the first trapezoidal conductive layer (4) outer surface;
Described tension unit (1) is made up of 1 first circular steel twisted wire (6), 6 second circular steel twisted wires (71) and 12 the 3rd circular steel twisted wires (81), 6 second circular steel wires (71) are stranded forms middle tensile layer (7) in the first circular steel wire (6) outer surface, and 12 the 3rd circular steel wires (81) are stranded forms outer tensile layer (8) in middle tensile layer (7) outer surface;
Described first circular steel twisted wire (6), the second circular steel twisted wire (71) and the 3rd circular steel twisted wire (81) all have some steel wires (12) to form and its outer surface is all coated with an aluminium lamination (10), is positioned between some steel wires (12) and is filled with polyester gluing filling part (11) in described aluminium lamination (10);
To be that circular the first circular aluminum single line (21) is stranded by 10 ~ 14 cross sections form described first duralumin conductive layer (2), and to be that circular the second circular aluminum single line (31) is stranded by 16 ~ 20 cross sections form described second duralumin conductive layer (3);
To be that the first trapezoidal aluminium single line (41) of isosceles trapezoid is stranded by 19 ~ 21 cross sections form described first trapezoidal conductive layer (4), to be that the second trapezoidal aluminium single line (51) of isosceles trapezoid is stranded by 24 ~ 26 cross sections form second trapezoidal conductive layer (5), all having a cross section in described first trapezoidal aluminium single line (41), the second trapezoidal aluminium single line (51) is circular copper conductor (9), the sectional area of this copper conductor (9) be the first trapezoidal aluminium single line (41), the second trapezoidal aluminium single line (51) sectional area 35 ~ 45%.
2. ultra high voltage large capacity transmission wire according to claim 1, is characterized in that: the area of section of described tension unit (1) accounts for the total cross-sectional area 9 ~ 12% of falling blast wire.
3. ultra high voltage large capacity transmission wire according to claim 1, it is characterized in that: in described first duralumin conductive layer (2), the first circular aluminum single line (21) direction of lay is dextrad, in described second duralumin conductive layer (3), the second circular aluminum single line (31) direction of lay is left-hand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419218.0U CN204680470U (en) | 2015-06-17 | 2015-06-17 | Ultra high voltage large capacity transmission wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419218.0U CN204680470U (en) | 2015-06-17 | 2015-06-17 | Ultra high voltage large capacity transmission wire |
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| Publication Number | Publication Date |
|---|---|
| CN204680470U true CN204680470U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520419218.0U Active CN204680470U (en) | 2015-06-17 | 2015-06-17 | Ultra high voltage large capacity transmission wire |
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| CN (1) | CN204680470U (en) |
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- 2015-06-17 CN CN201520419218.0U patent/CN204680470U/en active Active
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