CN107869271A - Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower - Google Patents
Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower Download PDFInfo
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- CN107869271A CN107869271A CN201610848808.4A CN201610848808A CN107869271A CN 107869271 A CN107869271 A CN 107869271A CN 201610848808 A CN201610848808 A CN 201610848808A CN 107869271 A CN107869271 A CN 107869271A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 239000012212 insulator Substances 0.000 claims abstract description 46
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241001339245 Callirhoe digitata Species 0.000 description 1
- 235000002259 Callirhoe involucrata Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
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Abstract
The present invention is pyramidal structure of one kind ± 1100kV extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower,Including tower body 4 and the tower head being arranged on tower body 4,The superiors' cross-arm of the tower head is ± 1100kV UHVDC Transmission Lines tower heads,Horizontal symmetrical ± 1100kV extra high voltage direct current transmission lines are hung under the superiors' cross-arm,The middle level cross-arm of tower head and the double loop 750kV ultrahigh-voltage alternating-current circuit tower heads set using lower floor's cross-arm as inverted triangle shape,The both upper ends thereof of the superiors' cross-arm 1 is respectively provided with earth wire support 12,Extra high voltage direct current transmission line and ultrahigh-voltage alternating-current circuit can pass through I types,The suspension connection of V-type insulator chain,The present invention is using super,The same Deethanizer design of extra high voltage direct current transmission line,UHVDC Transmission Lines wire horizontal symmetrical arranges and the arrangement of ultrahigh-voltage alternating-current line conductor inverted triangle,Circuit can be effectively reduced and toll breakdown area's width of corridor,Reasonable stress,Tower weight index is more excellent,Can the extensive use in UHVDC Transmission Lines and the simultaneous corridor congested area of ultrahigh-voltage alternating-current circuit.
Description
Technical field
The present invention relates to it is a kind of be used for surpass, extra high voltage direct current transmission line with the tower of tower, be used for especially with regard to one kind
Tower of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower.
Background technology
Conventional electrical power lines Lu Tongta is generally exchanged and is exchanged same tower or direct current and the same tower of direct current, ultrahigh-voltage alternating-current circuit and
Width of corridor is all wider needed for UHVDC Transmission Lines, and conventional ± more than 800kV extra high voltage direct current transmission lines typically use
" dry " font tower, the arrangement of polar conductor is usually horizontal arranging mode, conventional more than 330kV ultrahigh-voltage alternating-currents transmission line of electricity
Typically use wine cup shape and " dry " font tower.This cause its take corridor it is wider, the crowded location amount of demolition in corridor is larger.
Conventional UHVDC Transmission Lines wire vertical arrangement uses F type towers, and F types tower is due to itself asymmetric stress knot
Structure, tower material index are higher.With the continuous development of power grid construction, power transmission line corridor resource is increasingly in short supply, and ac and dc circuit is same
The shaft tower of tower is applied will be more and more wider, it would be highly desirable to a kind of shaft tower pattern of the common tower of new super extra-high voltage alternating current-direct current circuit, makes shaft tower
Stress is more reasonable, and tower weight index is more excellent.
Present invention is primarily directed to solve, the parallel distance of Hexi Corridor Region transmission line of electricity, circuit are more and gallery is nervous
The problems such as, 750kV circuits are the distinctive voltage class in the Northwest, and double loop width of corridor is about 46m-50m, and ± 1100kV is
Whole world highest voltage level at present, circuit width of corridor are about 100m；When ± 1100kV circuits and double loop 750kV circuits simultaneously
During row, and line space needs about 70m, i.e. gallery overall width about 145m；Employ the present invention ± 1100kV extra-high voltage direct-currents with
After 750kV ultrahigh-voltage alternating-currents circuit is with tower tower, width of corridor can be controlled in 56m, greatly reduces width of corridor, and house is torn open
The amount of moving can reduce about 60%, and economic benefit and social benefit are obvious.
The content of the invention
Technical problem solved by the invention is providing a kind of symmetrical configuration and can effectively reduce circuit and toll breakdown area
Pyramidal structure of ± 1100kV the extra-high voltage direct-currents of corridor width with 750kV ultrahigh-voltage alternating-currents with tower.
The technology used in the present invention means are as follows.
Pyramidal structure of one kind ± 1100kV extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower, it is characterised in that
Including：Tower body and tower head, the tower head include upper strata cross-arm, middle level cross-arm and lower floor's cross-arm；The upper strata cross-arm for ±
1100kV UHVDC Transmission Lines tower heads, the symmetrical ± 1100kV extra-high voltage direct-current transmissions of upper strata cross-arm underhung level
Circuit, left side are positive pole, and right side is negative pole, collectively form a loop；The middle level cross-arm and lower floor's cross-arm are 750kV superelevation
Alternating current circuit tower head is pressed, middle level cross-arm is longer than upper strata cross-arm, and lower floor's cross-arm length is less than middle level cross-arm, 750kV ultrahigh-voltage alternating-currents
Transmission line wire hangs on middle level cross-arm and lower floor's cross-arm, and the 750kV ultrahigh-voltage alternating-current circuits tower head includes left and right two solely
Vertical loop, and the loop of left and right two is arranged symmetrically.
Wherein, the first V-type insulator chain and the second V-type insulator chain are hung respectively with right side on the left of the upper strata cross-arm.
Wherein, the V-type subtended angle angle in the first V-type insulator chain 11 and the second V-type insulator chain 12 is 85 °.
Wherein, left end hangs the first I type insulator chains below the middle level cross-arm, and adjacent inboard hangs the insulation of the 3rd V-type
Substring, lower floor's cross-arm lower section left end hang the 2nd I type insulator chains, and overall is in inverted triangle shape arrangement；The middle level cross-arm
Lower section right-hand member hangs the 3rd I type insulator chains, and adjacent inboard hangs the 4th V-type insulator chain, and right-hand member is hung below lower floor's cross-arm
4th I type insulator chains, overall is in inverted triangle shape arrangement.
Wherein, the V-type subtended angle angle of the 3rd V-type insulator chain and the 4th V-type insulator chain is 90 °.
Wherein, the upper strata cross-arm and middle level cross-arm spacing 25-28m, middle level cross-arm and lower floor cross-arm spacing 16-18m；On
Layer cross-arm outermost end hanging point to tower body Center Length be 24-25m, 2 ± 1100kV extra high voltage direct current transmission line wire pitch
26-27m, middle level cross-arm outermost hitch point to tower body Center Length are 24-25m, the I-V insulator chains of the side of middle level cross-arm 2
750kV ultrahigh-voltage alternating-current transmission line wire spacing 15-16m, lower floor's cross-arm outermost end hanging point to tower body Center Length is 13-
14m, tower body total height are 105-110m.
Wherein, the upper strata cross-arm and middle level cross-arm spacing 26.9m, middle level cross-arm and lower floor cross-arm spacing 16.3m, tower body
Total height 108.7m, upper strata cross-arm outermost end hanging point to tower body Center Length are 24.5m, and 2 ± 1100kV extra-high voltage direct-currents are defeated
Electric line wire pitch 26.5m, middle level cross-arm outermost hitch point to tower body Center Length are 24.9m, middle level cross-arm side
The 750kV ultrahigh-voltage alternating-current transmission line wire spacing 15m of I-V insulator chains, the outermost end hanging point of lower floor's cross-arm 3 to tower body center
Length is 13.1m.
Wherein, the left and right ends above the upper strata cross-arm are respectively arranged with earth wire support.
Wherein, the earth wire support outermost end hanging point to tower body Center Length be 27.8m, to the height of upper strata cross-arm downside
Spend for 0.55m.
Wherein, 8 × 1250mm of section selection of ± 1100kV DC line wires2, the section of 750kV alternating current circuits wire
Select 6 × 500mm2。
Had the beneficial effect that caused by the present invention.
1st, using super, the same Deethanizer design of extra high voltage direct current transmission line, UHVDC Transmission Lines wire is horizontally arranged, super-pressure
Alternating current circuit wire inverted triangle arrangement, can effectively reduce circuit and toll breakdown area's width of corridor.
2nd, tower head is using the structure type being arranged symmetrically, relative to " F " type tower of conventional UHVDC Transmission Lines, its structure
Symmetrically, stress is more reasonable, and tower weight index is more excellent.
3rd, the present invention can be in UHVDC Transmission Lines and the simultaneous corridor congested area of ultrahigh-voltage alternating-current circuit
Extensive use.
4th, the present invention efficiently solves the parallel distance of Hexi Corridor Region transmission line of electricity, circuit are more and gallery is nervous etc.
Problem, 750kV circuits are the distinctive voltage class in the Northwest, and double loop width of corridor is about 46m-50m, and ± 1100kV is mesh
Preceding whole world highest voltage level, circuit width of corridor are about 100m；When ± 1100kV circuits and double loop 750kV circuits are parallel
When, and line space needs about 70m, i.e. gallery overall width about 145m；Employ the present invention ± 1100kV extra-high voltage direct-currents with
After 750kV ultrahigh-voltage alternating-currents circuit is with tower tower, width of corridor can be controlled in 56m, greatly reduces width of corridor, and house is torn open
The amount of moving can reduce about 60%, and economic benefit and social benefit are obvious.
Brief description of the drawings
Fig. 1 is the pyramidal structure schematic diagram of the present invention.
Fig. 2 is the enlarged diagram of tower body in the present invention.
Fig. 3 is the scale diagrams of each layer of tower in the present invention（Arithemetic unit is millimeter (mm) in figure）.
Embodiment
Pyramidal structure of present invention protection one kind ± 1100kV extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower,
As shown in figure 1, it includes tower body 4 and tower head, tower head includes upper strata cross-arm 1, middle level cross-arm 2 and the lower floor being arranged on tower body 4
Cross-arm 3, wherein, the transverse width of middle level cross-arm 2 is slightly larger than the transverse width of upper strata cross-arm 1, during the transverse width of lower floor's cross-arm 3 is shorter than
Layer cross-arm 2.
Wherein, upper strata cross-arm 1 is ± 1100kV UHVDC Transmission Lines tower heads, the underhung of upper strata cross-arm 1 level or so
Symmetrically ± 1100kV extra high voltage direct current transmission lines, left side are positive pole, and right side is negative pole, collectively form a loop.Such as Fig. 2
Shown, the left side of upper strata cross-arm 1 and right side hang the first V-type insulator chain 11 and the second V-type insulator chain 12, the first V-type respectively
V-type subtended angle angle [alpha] in the V-type insulator chain 12 of insulator chain 11 and second, it is preferably 85 °.The left and right of the top of upper strata cross-arm 1
Both ends are respectively arranged with earth wire support 13.
Wherein, middle level cross-arm 2 and lower floor's cross-arm 3 are 750kV ultrahigh-voltage alternating-current circuit tower heads, and the length of lower floor's cross-arm 3 is less than
Middle level cross-arm 2.750kV ultrahigh-voltage alternating-current transmission line wires hang on middle level cross-arm and lower floor's cross-arm, and the 750kV super-pressure is handed over
Flow Line tower head includes left and right two independent loops, and the loop of left and right two is arranged symmetrically.As shown in Fig. 2 middle level cross-arm 2
Lower section left end hangs the first I types insulator chain 21, and adjacent inboard hangs the 3rd V-type insulator chain 22, the lower section left end of lower floor's cross-arm 3
Hang the 2nd I types insulator chain 23.The lower section right-hand member of middle level cross-arm 2 hangs the 3rd I types insulator chain 24, adjacent inboard suspension the 4th
V-type insulator chain 25, the lower section right-hand member of lower floor's cross-arm 3 hang the 4th I types insulator chain 26.Wherein, the I type insulator chains of left side the first
21 and the 3rd the 2nd I types insulator chain 23 of V-type insulator chain 22 and lower floor form and supply 750kV ultrahigh-voltage alternating-currents transmission line of electricity one
The line support in individual loop, overall is in inverted triangle shape arrangement.Wherein, the I types insulator chain 24 of right side the 3rd and the 4th V-type are exhausted
Edge substring 25 and the 4th I types insulator chain 26 of lower floor form the line for another loop of 750kV ultrahigh-voltage alternating-current transmission lines of electricity
Road supports, and same entirety is in inverted triangle shape arrangement.Above-mentioned 3rd V-type insulator chain 22 and the 4th V-type insulator chain 25
V-type subtended angle angle beta, it is preferably 90 °.
Because DC line wire is in tower body the top, higher away from ground, ground field strength is mainly controlled by alternating current circuit, ground
Ion current density very little.Alternating current circuit is arranged vertically, ground big with the radio interference of inverted triangle arrangement and audible noise
Field strength is small；The ground field strength of positive triangle arrangement is big, and radio interference and audible noise are small.It is arranged vertically and is arranged with inverted triangle
The distance to the ground of mode is suitable, but tower weight is big by 9% or so compared with inverted triangle arrangement, and the distance to the ground of positive triangle arrangement is than three
Angle arrangement wants big 0.4-1m, and steel tower weight is substantially suitable.The alternating current-direct current determined from normalization ground field strength is the same as tower circuit
Width of corridor from the point of view of, the width of corridor of positive triangle arrangement is most wide, inverted triangle arrangement width of corridor than vertically arranged
Narrow but width is substantially suitable, thus the present invention in, lower floor alternating current circuit preferably use inverted triangle arrangement.
In this programme, the upper strata cross-arm 1 and spacing 25-28m of middle level cross-arm 2, the middle level cross-arm 2 and spacing 16- of lower floor's cross-arm 3
18m.The outermost end hanging point of upper strata cross-arm 1 is 24-25m to tower body Center Length, and 2 ± 1100kV extra high voltage direct current transmission lines are led
Line spacing 26-27m, the outermost hitch point of middle level cross-arm 2 to tower body Center Length are 24-25m, and the I-V of the side of middle level cross-arm 2 is exhausted
The 750kV ultrahigh-voltage alternating-current transmission line wire spacing 15-16m of edge substring, the outermost end hanging point of lower floor's cross-arm 3 to tower body center are grown
It is 105-110m to spend for 13-14m, tower body total height.
The fact that Fig. 3 is optimal in this programme mode, it have recorded when basic wind speed 27m/s, ice covering thickness 10mm, highest
During height above sea level 1500m, the upper strata cross-arm 1 and spacing 26.9m of middle level cross-arm 2, the middle level cross-arm 2 and spacing 16.3m of lower floor's cross-arm 3,
Tower body total height 108.7m, the outermost end hanging point of upper strata cross-arm 1 to tower body Center Length are 24.5m, 2 extra-high straightenings of ± 1100kV
Transmission line wire spacing 26.5m is flowed, the outermost hitch point of middle level cross-arm 2 to tower body Center Length is 24.9m, middle level cross-arm 2
The 750kV ultrahigh-voltage alternating-current transmission line wire spacing 15m of the I-V insulator chains of side, the outermost end hanging point of lower floor's cross-arm 3 to tower
Body Center Length is 13.1m.The outermost end hanging point of earth wire support 13 to tower body Center Length be 27.8m, to upper strata cross-arm downside
Height be 5.5m.8 × 1250mm of section selection of ± 1100kV DC line wires2, the section of 750kV alternating current circuits wire
Select 6 × 500mm2。
The result of the test influenceed according to Chinese DianKeYuan ion stream on the air gap, direct-current ion stream is to exchanging the air gap
The influence of flash-over characteristic can be ignored, thus alternating current-direct current with tower circuit the air gap according to each respective sky of voltage class circuit
Gas gap is designed.During 1500m height above sea level, ± 1100kV circuit power frequency voltage gaps take 3.5m, switching overvoltage gap
（1.6p.u.）Take 9.7m；750kV double circuit line power-frequency voltages gap takes 2.15m, and I strings in switching overvoltage gap take 4.7m, V
String takes 5m, and lightning surge gap takes 4.6m.During actual design parameter, the height between each layer cross-arm should meet direct current, exchange
Clearance joints, the left and right side wire of upper strata cross-arm suspension for the minimum air void value control that transmission line wire is required tower body
Between horizontal range, to meet the requirement of UHVDC Transmission Lines die opening.
For the present invention due to taking above technical scheme, it has advantages below：1st, using super, extra high voltage direct current transmission line
Same Deethanizer design, UHVDC Transmission Lines wire is horizontally arranged, the arrangement of ultrahigh-voltage alternating-current line conductor inverted triangle, can effectively reduce
Circuit tolls breakdown area's width of corridor；2nd, tower head is using the structure type being arranged symmetrically, relative to " F " of conventional UHVDC Transmission Lines
Type tower, its symmetrical configuration, stress is more reasonable, and tower weight index is more excellent.Thus the present invention can be in UHVDC Transmission Lines and superelevation
Press extensive use in the simultaneous corridor congested area in alternating current circuit.
Claims (10)
1. pyramidal structure of one kind ± 1100kV extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower, it is characterised in that bag
Include：Tower body and tower head, the tower head include upper strata cross-arm, middle level cross-arm and lower floor's cross-arm；
The upper strata cross-arm is ± 1100kV UHVDC Transmission Lines tower heads, upper strata cross-arm underhung level is symmetrical ±
1100kV extra high voltage direct current transmission lines, left side are positive pole, and right side is negative pole, collectively form a loop；
The middle level cross-arm and lower floor's cross-arm are 750kV ultrahigh-voltage alternating-current circuit tower heads, and middle level cross-arm is longer than upper strata cross-arm, lower floor
Cross-arm length is less than middle level cross-arm, and 750kV ultrahigh-voltage alternating-current transmission line wires hang on middle level cross-arm and lower floor's cross-arm, should
750kV ultrahigh-voltage alternating-current circuits tower head includes left and right two independent loops, and the loop of left and right two is arranged symmetrically.
2. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 1 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that,
On the left of the upper strata cross-arm and right side hangs the first V-type insulator chain and the second V-type insulator chain respectively.
3. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 2 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that,
V-type subtended angle angle in the first V-type insulator chain 11 and the second V-type insulator chain 12 is 85 °.
4. the tower knot of ± 1100kV extra-high voltage direct-currents as claimed in claim 1 or 2 with 750kV ultrahigh-voltage alternating-currents circuit with tower
Structure, it is characterised in that
Left end hangs the first I type insulator chains below the middle level cross-arm, and adjacent inboard hangs the 3rd V-type insulator chain, lower floor
Left end hangs the 2nd I type insulator chains below cross-arm, and overall is in inverted triangle shape arrangement；
Right-hand member hangs the 3rd I type insulator chains below the middle level cross-arm, and adjacent inboard hangs the 4th V-type insulator chain, lower floor
Right-hand member hangs the 4th I type insulator chains below cross-arm, and overall is in inverted triangle shape arrangement.
5. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 4 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that,
The V-type subtended angle angle of the 3rd V-type insulator chain and the 4th V-type insulator chain is 90 °.
6. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 5 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that, the upper strata cross-arm and middle level cross-arm spacing 25-28m, middle level cross-arm and lower floor cross-arm spacing 16-18m；Upper strata
Cross-arm outermost end hanging point to tower body Center Length be 24-25m, 2 ± 1100kV extra high voltage direct current transmission line wire pitch 26-
27m, middle level cross-arm outermost hitch point to tower body Center Length are 24-25m, the I-V insulator chains of the side of middle level cross-arm 2
750kV ultrahigh-voltage alternating-current transmission line wire spacing 15-16m, lower floor's cross-arm outermost end hanging point to tower body Center Length are 13-
14m, tower body total height are 105-110m.
7. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 6 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that, the upper strata cross-arm and middle level cross-arm spacing 26.9m, middle level cross-arm and lower floor cross-arm spacing 16.3m, tower body are total
Height 108.7m, upper strata cross-arm outermost end hanging point to tower body Center Length are 24.5m, 2 ± 1100kV extra-high voltage direct-current transmissions
Line conductor spacing 26.5m, middle level cross-arm outermost hitch point to tower body Center Length are 24.9m, the I-V of middle level cross-arm side
The 750kV ultrahigh-voltage alternating-current transmission line wire spacing 15m of insulator chain, the outermost end hanging point of lower floor's cross-arm 3 to tower body center are grown
Spend for 13.1m.
8. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 7 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that, the left and right ends above the upper strata cross-arm are respectively arranged with earth wire support.
9. the pyramidal structure of ± 1100kV extra-high voltage direct-currents as claimed in claim 8 with 750kV ultrahigh-voltage alternating-currents circuit with tower,
Characterized in that, the earth wire support outermost end hanging point to tower body Center Length be 27.8m, to the height of upper strata cross-arm downside
For 5.5m.
10. the tower knot of ± 1100kV extra-high voltage direct-currents as claimed in claim 9 with 750kV ultrahigh-voltage alternating-currents circuit with tower
Structure, it is characterised in that 8 × 1250mm of section selection of ± 1100kV DC line wires2, section of 750kV alternating current circuits wire
Face selects 6 × 500mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610848808.4A CN107869271A (en) | 2016-09-23 | 2016-09-23 | Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610848808.4A CN107869271A (en) | 2016-09-23 | 2016-09-23 | Pyramidal structure of ± 1100kV the extra-high voltage direct-currents with 750kV ultrahigh-voltage alternating-currents circuit with tower |
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|---|---|
| CN107869271A true CN107869271A (en) | 2018-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11901711B1 (en) | 2020-08-07 | 2024-02-13 | Inventus Holdings, Llc | Type H compact electric transmission line support structure |
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| CN103046794A (en) * | 2012-12-27 | 2013-04-17 | 国核电力规划设计研究院 | Ultrahigh-voltage direct current crank arm tangent tower |
| CN103726703A (en) * | 2013-11-22 | 2014-04-16 | 国家电网公司 | Alternating current extra-high voltage same-tower double-circuit tangent tower |
| CN203879087U (en) * | 2013-11-22 | 2014-10-15 | 国家电网公司 | Extra-high-tension AC double-loop shared iron tower |
| CN203808590U (en) * | 2013-12-31 | 2014-09-03 | 国家电网公司 | Tangent tower for 60-millimeter heavily iced area of +/-800-kilovolt ultrahigh-voltage direct current line |
| CN104538921A (en) * | 2014-12-12 | 2015-04-22 | 国家电网公司 | Method for improving lightning protection performance of altering/direct current joint circuit |
| CN204464916U (en) * | 2015-04-10 | 2015-07-08 | 中国电力工程顾问集团中南电力设计院有限公司 | ± 800kV and ± 500kV is with tower mixed pressure transmission line polar conductor arrangement |
| CN105178677A (en) * | 2015-08-21 | 2015-12-23 | 国家电网公司 | Linear tower for ultrahigh-voltage direct-current lines and with two poles arranged vertically |
| CN106099818A (en) * | 2016-08-15 | 2016-11-09 | 中国电力工程顾问集团西北电力设计院有限公司 | ± 1100kV direct current exchanges same tower wire arrangements structure with double back 330kV |
| CN206053502U (en) * | 2016-09-23 | 2017-03-29 | 国家电网公司 | The pyramidal structure of ± 1100kV extra-high voltage direct-currents and 750kV ultrahigh-voltage alternating-currents circuit with tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11901711B1 (en) | 2020-08-07 | 2024-02-13 | Inventus Holdings, Llc | Type H compact electric transmission line support structure |
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Application publication date: 20180403 |