CN203690016U - Wire preformed armor rod suspended strand in 20 mm heavy ice area of +-800 kV extra-high voltage DC line - Google Patents
Wire preformed armor rod suspended strand in 20 mm heavy ice area of +-800 kV extra-high voltage DC line Download PDFInfo
- Publication number
- CN203690016U CN203690016U CN201320889424.9U CN201320889424U CN203690016U CN 203690016 U CN203690016 U CN 203690016U CN 201320889424 U CN201320889424 U CN 201320889424U CN 203690016 U CN203690016 U CN 203690016U
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- Prior art keywords
- insulator
- gold utensil
- string
- insulators
- transmission lines
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- 239000012212 insulator Substances 0.000 claims abstract description 74
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 239000000725 suspension Substances 0.000 claims description 57
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 41
- 239000010931 gold Substances 0.000 claims description 41
- 229910052737 gold Inorganic materials 0.000 claims description 41
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004020 conductor Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000035882 stress Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010042209 Stress Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a wire preformed armor rod suspended strand in a 20 mm heavy ice area of a +-800 kV extra-high voltage DC line, which comprises two suspended linked plates, and a first insulator chain and a second insulator chain which are distributed in a ''V'' shape, wherein the first insulator chain and the second insulator chain respectively comprise two insulators and a hanging point armor clamp which is connected to a tower cross arm, upper ends of the two insulators are connected to the hanging point armor clamp, and lower ends of the two insulators are connected to the two suspended linked plates; and the suspended linked plate is connected with a plurality of preformed armor rod suspended line clamps and a heavy hammer slice which can control sway angles of the insulator chains, wherein a transmission conductor respectively passes through the suspended line clamps on the two suspended linked plates. With the utility model, demands for the +-800 kV extra-high voltage DC line can be satisfied.
Description
Technical field
The utility model belongs to UHVDC Transmission Lines suspension insulator field, is specifically related to one ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string.
Background technology
For the electric energy that allows Energy Base produce reduces loss in the process that is transported to electricity needs center, improve transmission of electricity quality, China is building UHV transmission line at present energetically.Tangent tower, as a kind of iron tower structure, is widely used in UHV Overhead Transmission Line, for support wire and ground wire, is generally used between the strain section of circuit, is the more shaft tower type of usage quantity in a transmission line.Suspension insulator is a kind of vitals being used on tangent tower, on tangent tower, connect wire and steel tower and keep transmission pressure and steel tower between the vitals of electric insulation.
The feature of suspension insulator is the gravity laod bearing from wire, horizontal wind load and self gravitation load, and keep the electric insulation of transmission pressure and steel tower self.At present, in general UHV transmission line field, suspension insulator generally adopts connection gold utensil and insulator by rationally connecting to form.Through electric insulation calculating, Mechanics Calculation and carry out fail safe, economy etc. comprehensively relatively after determine.
The selectable V-type string that has vertically arranged I string, tilts to install as required in the installation of transmission line suspension insulator, the various ways such as Y type string and the installation of multi-series and parallel connection, different mounting meanss can produce Different Effects to insulator contamination characteristic.The I string of the most employing of hvdc transmission line suspension string both at home and abroad and two kinds of modes of V string at present, ruuning situation is good, the design of I string and V string and the existing rich experience of use.
The suspension insulator of at present general UHVDC Transmission Lines adopts V-structure more.Its V string left and right two symmetries, are used for connecting steel tower topmost, and centre forms by connecting gold utensil and insulator, becomes attached to and bears mechanical load in order to keep electric.Two lower ends are connected by metal yoke plate, hang with suspension clamp on yoke plate, for hanging wire.At present, the catenary that ultra high voltage power transmission sequence is conventional accompanies: above shoulder formula suspension clamp, handbag type suspension clamp, center steering formula suspension clamp and pre-hinged catenarian cable cleat.On shoulder formula suspension clamp and be mainly used in the smooth area of landform, if shoulder formula suspension clamp on adopting, its corona characteristic also needs further research.Developed country adopts center steering formula suspension clamp more, and China's extra high voltage line all uses handbag type suspension clamp substantially, has abundant operating experience.
Center steering formula and the handbag type suspension clamp main distinction are, the position relationship of the pivot center of suspension clamp and wire longitudinal axis.Should make the vibratory response minimum of wire and wire clamp self for the design of suspension clamp, avoid stress to concentrate the infringement to wire.The center steering formula suspension clamp that the wire of pattern of the same race tonnage grade are identical is installed heavier than handbag type suspension clamp, but because center steering formula suspension clamp steel part accounting is heavy larger, so the suspension clamp price of two kinds of structures is basic identical.Be compared to center steering formula and handbag type suspension clamp; pre reeled silk type suspension clamp; protection to wire is best; can alleviate the damage to wire; it is upper that this wire clamp is mainly applicable to OPGW, is abroad also useful on wire, and China Article 1 750kV transmission line is using expanded conductor location; in order better to protect expanded conductor, adopt pre-hinged catenarian cable cleat.For better guardwire, strengthen circuit reliability of operation, be necessary to attempt adopting pre-hinged catenarian cable cleat in ± 800kV UHVDC Transmission Lines engineering.
Utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides one ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, the demand of can meet ± 800kV of this suspension string UHVDC Transmission Lines.
For achieving the above object, described in the utility model ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string comprises the first insulator string and the second insulator string that two hanging yoke plates, " V " font distribute;
Described the first insulator string and the second insulator string include two insulators and the hitch point gold utensil for being connected with tower body cross-arm, the upper end of two insulators is all connected with hitch point gold utensil, and the lower end of two insulators is all connected with described two hanging yoke plates;
On described hanging yoke plate, be connected with several suspension clamps and for controlling the heavy punch piece of pendulum angle of insulator string, transmission pressure is respectively through the suspension clamp on two hanging yoke plates.
Described the first insulator string and the second insulator string all also comprise that the first connection gold utensil and second connects gold utensil, the upper end of two insulators is all connected with hitch point gold utensil by the first connection gold utensil, the lower end of two insulators is all connected gold utensil and is connected with second, and two hanging yoke plates are all connected gold utensil and are connected with second.
Described first connects gold utensil is connected by extending pull rod with hitch point gold utensil.
The upper end of described insulator is provided with first and is connected the ball-eye that gold utensil is connected, and the lower end of insulator is provided with second and is connected the socket-clevis eye that gold utensil is connected.
On described insulator, be connected with the aluminium grading ring for balanced insulator string surface voltage.
Described suspension clamp is pre reeled silk type suspension clamp.
Described insulator is disk insulator.
The utlity model has following beneficial effect:
Described in the utility model ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string is provided with two hanging yoke plates, hanging yoke plate is provided with suspension clamp, transmission pressure is respectively through the suspension clamp on two hanging yoke plates, suspension clamp by suffered transmission pressure stress distribution on a large region area, thereby effectively protection is due to transmission pressure bending, shear, the impact of the static stresss such as stretching on transmission pressure, greatly improve meeting with stresses of transmission pressure, and in the time that transmission pressure is waved, a little be difficult for causing the damage to transmission pressure dangling.Meanwhile, suspension clamp is held transmission pressure, makes suspension clamp can bear a unbalanced load; avoid the slippage of transmission pressure; greatly protect transmission pressure, made the wearing and tearing of transmission pressure be down to bottom line, thus the demand of meet ± 800kY UHVDC Transmission Lines.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the end view of two hanging yoke plates 7 in the utility model;
Fig. 3 is the end view of the first insulator string or the second insulator string in the utility model.
Wherein, 1 is that hitch point gold utensil, 2 is that ball-eye, 3 is that insulator, 4 is that aluminium grading ring, 5 is that socket-clevis eye, 6 is that suspension clamp, 7 is that hanging yoke plate, 8 is that heavy punch piece, 9 is extending pull rod.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1, Fig. 2 and Fig. 3, described in the utility model ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, comprises the first insulator string and the second insulator string that two hanging yoke plates 7, " V " font distribute; Described the first insulator string and the second insulator string include two insulators 3 and the hitch point gold utensil 1 for being connected with tower body cross-arm, the upper end of two insulators 3 is all connected with hitch point gold utensil 1, and the lower end of two insulators 3 is all connected with described two hanging yoke plates 7; Described first connects gold utensil is connected by extending pull rod 9 with hitch point gold utensil 1, and described insulator 3 is disk insulator.
On described hanging yoke plate 7, be connected with several suspension clamps 6 and for controlling the heavy punch piece 8 of pendulum angle of insulator string, transmission pressure is respectively through the suspension clamp 6 on two hanging yoke plates 7.Described suspension clamp 6 is pre reeled silk type suspension clamp.
Described the first insulator string and the second insulator string all also comprise that the first connection gold utensil and second connects gold utensil, the upper end of two insulators 3 is all connected with hitch point gold utensil 1 by the first connection gold utensil, the lower end of two insulators 3 is all connected gold utensil and is connected with second, and two hanging yoke plates 7 are all connected gold utensil and are connected with second.The upper end of described insulator 3 is provided with and is connected the ball-eye 2 that gold utensil is connected with first, the lower end of insulator 3 is provided with and is connected the socket-clevis eye 5 that gold utensil is connected with second, described first connects gold utensil is connected by extending pull rod 9 with hitch point gold utensil 1, is connected with the aluminium grading ring 4 for balanced insulator string surface voltage on described insulator 3.
Above provided by the utility model ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string is described in detail, applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (7)
1. ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, is characterized in that, comprises the first insulator string and the second insulator string that two hanging yoke plates (7), " V " font distribute;
Described the first insulator string and the second insulator string include two insulators (3) and the hitch point gold utensil (1) for being connected with tower body cross-arm, the upper end of two insulators (3) is all connected with hitch point gold utensil (1), and the lower end of two insulators (3) is all connected with described two hanging yoke plates (7);
On described hanging yoke plate (7), be connected with several suspension clamps (6) and for controlling the heavy punch piece (8) of pendulum angle of insulator string, transmission pressure is respectively through the suspension clamp (6) on two hanging yoke plates (7).
2. according to claim 1 ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, it is characterized in that, described the first insulator string and the second insulator string all also comprise that the first connection gold utensil and second connects gold utensil, the upper end of two insulators (3) all connects gold utensil by first and is connected with hitch point gold utensil (1), the lower end of two insulators (3) is all connected gold utensil and is connected with second, and two hanging yoke plates (7) are all connected gold utensil and are connected with second.
3. according to claim 2 ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, is characterized in that, described first connects gold utensil is connected by extending pull rod (9) with hitch point gold utensil (1).
4. according to claim 2 ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, it is characterized in that, the upper end of described insulator (3) is provided with and is connected the ball-eye (2) that gold utensil is connected with first, and the lower end of insulator (3) is provided with and is connected the socket-clevis eye (5) that gold utensil is connected with second.
5. according to claim 1 ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, it is characterized in that, on described insulator (3), be connected with the aluminium grading ring (4) for balanced insulator string surface voltage.
6. according to claim 1 ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, is characterized in that, described suspension clamp (6) is pre reeled silk type suspension clamp.
7. according to claim 1 ± 800kV UHVDC Transmission Lines 20mm heavy icing area wire pre reeled silk type suspension string, is characterized in that, described insulator (3) is disk insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889424.9U CN203690016U (en) | 2013-12-23 | 2013-12-23 | Wire preformed armor rod suspended strand in 20 mm heavy ice area of +-800 kV extra-high voltage DC line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889424.9U CN203690016U (en) | 2013-12-23 | 2013-12-23 | Wire preformed armor rod suspended strand in 20 mm heavy ice area of +-800 kV extra-high voltage DC line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690016U true CN203690016U (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889424.9U Expired - Lifetime CN203690016U (en) | 2013-12-23 | 2013-12-23 | Wire preformed armor rod suspended strand in 20 mm heavy ice area of +-800 kV extra-high voltage DC line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376934A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type tri-connection V-shaped suspension string for light-ice area |
-
2013
- 2013-12-23 CN CN201320889424.9U patent/CN203690016U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376934A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type tri-connection V-shaped suspension string for light-ice area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee after: State Grid Corporation of China Patentee after: CHINA POWER ENGINEERING CONSULTING (Group) Corp. Patentee after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Patentee after: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: EAST CHINA ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee before: State Grid Corporation of China Patentee before: CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Patentee before: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: CHINA POWER ENGINEERING CONSULTING Group CORPORATION EAST CHINA ELECTRIC POWER DESIGN INSTITUTE Patentee before: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: NORTHWEST ELECTRIC POWER DESIGN INST. OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group |
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| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |