CN202816507U - A 160kN double-connected V-shaped suspension insulator string of a plus-minus 400kV DC line - Google Patents
A 160kN double-connected V-shaped suspension insulator string of a plus-minus 400kV DC line Download PDFInfo
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- CN202816507U CN202816507U CN2012201521534U CN201220152153U CN202816507U CN 202816507 U CN202816507 U CN 202816507U CN 2012201521534 U CN2012201521534 U CN 2012201521534U CN 201220152153 U CN201220152153 U CN 201220152153U CN 202816507 U CN202816507 U CN 202816507U
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- insulator
- suspension insulator
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- suspension
- duplex
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Abstract
The utility model discloses a 160kN double-connected V-shaped suspension insulator string of a plus-minus 400kV DC line. The 160kN double-connected V-shaped suspension insulator string comprises suspension point fittings, connecting fittings, composite insulator strings, grading rings, and suspension clamps. The suspension point fittings are suspended on the top of the suspension insulator strings and are used for being connected with the cross arm of a tower body. The grading rings are arranged at the middle and lower portion of the suspension insulator strings and are used for balancing voltage on the surface of the insulator strings. The suspension clamps are arranged at the lower portion of the suspension insulator strings and are used for suspending transmission wires. The insulator of the 160kN double-connected V-shaped suspension insulator string uses a composite insulator which uses a connecting format of zero-degree connection between rings. The 160kN double-connected V-shaped suspension insulator string uses a V-shaped serial connecting manner. The embodiment of the utility model is capable of satisfying requirement of plus-minus 400kV DC transmission line.
Description
Technical field
The utility model relates to the High-Voltage Insulation field, particularly relates to a kind of ± 400kV DC line 160kN duplex V-type suspension insulator.
Background technology
Before this ± and 500kV is the minimum voltage grade of China's direct current high tension transmission circuit, for picture Golmud～Lhasa work transmission line, because the load of Tibet Power Grid is less, employing ± 500kV economy is not good.In order to carry out the strategic objective of the Party Central Committee, State Council's enforcement " development of the West Regions ", alleviate the recent short of electricity situation of electrical network in the Tibetan, satisfy Tibet at a specified future date social economy to the requirement of electric power development, taking into account simultaneously economic feasibility, China is successfully completed ± the developing of 400kV HVDC Transmission Technology.
± 400kV DC power transmission line load less, insulator string is also different simultaneously, can not indiscriminately imitate the line insulator string of existing other electric pressure.Therefore, design ± 400kV DC power transmission line 160kN duplex V-type suspension insulator is the technical problem that those skilled in the art are badly in need of solving.
The utility model content
Technical problem to be solved in the utility model provides a kind of ± 400kV DC power transmission line 160kN duplex V-type suspension insulator can satisfy ± requirement of 400kV DC power transmission line.
For achieving the above object, the utility model provides a kind of ± 400kV DC power transmission line 160kN duplex V-type suspension insulator, described 160kN duplex V-type suspension insulator comprise the hitch point gold utensil, connect gold utensil, composite insulator string, grading ring and suspension clamp; Wherein,
Described hitch point gold utensil is used for being connected with the body of the tower cross-arm at the suspension insulator top; Described grading ring is positioned at described suspension insulator middle and lower part, is used for uniform insulation substring surface voltage; Described suspension clamp is positioned at described suspension insulator bottom, is used for hanging transmission pressure;
The insulator of described 160kN duplex V-type suspension insulator adopts composite insulator, and type of attachment adopts ring, 0 ° of connection of ring; The assembly type of described 160kN duplex V-type suspension insulator adopts V serial type formula.
Preferably, the wire hitch point of described suspension insulator adopts LT trunnion hanging panel gold utensil to be connected with the body of the tower cross-arm.
Preferably, the hanging conductor clamp of described suspension insulator adopts the anti-corona suspension clamp of handbag type.
Preferably, the connection gold utensil of described suspension insulator adopts New Type Material, has good cryogenic property, can guarantee the safe operation of engineering.
The material of the connection gold utensil of described suspension insulator is container slab, structural alloy steel, carbon constructional quality steel, austenitic stainless steel, aluminum or aluminum alloy.
Compared with prior art, the utlity model has following advantage:
The utility model provides a kind of ± 400kV DC power transmission line 160kN duplex V-type suspension insulator.In order to prevent that composite insulator from coming off, the connected mode of insulator string adopts the ring ring to connect; In order to reduce the circuit width of corridor, alleviate environmental disruption, the assembly type of insulator string adopts V serial type formula; For satisfy height above sea level more than 3500 meters regional hvdc transmission line press all that the specific (special) requirements of shielding, the grading ring of insulator string and shading ring have been carried out multiplely all pressing, the corona experiment of Shielding plan; The connection gold utensil of suspension insulator adopts special substance, has good cryogenic property, can guarantee the safe operation of engineering.
Description of drawings
Fig. 1 is of the present utility model ± 400kV DC power transmission line 160kN duplex V-type suspension insulator structural representation.
Fig. 2 is of the present utility model ± 400kV DC power transmission line 160kN duplex V-type suspension insulator structure side view.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1-2, be of the present utility model ± 400kV DC power transmission line 160kN duplex V-type suspension insulator figure.
Described 160kN duplex V-type suspension insulator comprises: hardware 1, connection gold utensil 4, composite insulator 6, grading ring 7 and suspension clamp 9.
Described hardware 1 is arranged on described suspension insulator top, adopts the superior LT trunnion hanging panel gold utensil of stress performance, is used for being connected with the body of the tower cross-arm.
Described connection gold utensil 4 is positioned at the middle part of described suspension insulator, is used for the connection between hardware, composite insulator, the suspension clamp.Connect gold utensil and adopt New Type Material, have good cryogenic property.
Described composite insulator 6 is positioned at the middle part of described suspension insulator.The insulator of described 160kN duplex V-type suspension insulator adopts composite insulator, have excellent resistant and dodge ability, composite insulator adopts ring, 0 ° of connection form of ring to replace a ball bowl connecting structure, can fundamentally solve the wire composite insulator V-type string bulb problem that comes off.
Described grading ring 7 is arranged between composite insulator and the suspension clamp, is used for improving voltage distribution on the insulator string, can make insulator avoid flash burn.
Described equal suspension clamp 9 is used for hanging both sides phase transmission pressure, adopts handbag type, has anti-corona performance.
Preferably, the assembly type of described suspension insulator adopts V serial type formula, can reduce tower weight on the one hand, can reduce the circuit width of corridor on the other hand, alleviates environmental disruption.
Preferably, the grading ring of described suspension insulator and shading ring have carried out multiplely all pressing, the corona experiment of Shielding plan, filled up height above sea level more than 3500 meters regional hvdc transmission line all press the blank of Shielding plan.
More than provided by the utility model ± 400kV DC power transmission line 160kN duplex V-type suspension insulator is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, 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.
Claims (4)
1. one kind ± 400kV DC line 160kN duplex V-type suspension insulator is characterized in that, described 160kN duplex V-type suspension insulator comprises the hitch point gold utensil, connects gold utensil, composite insulator string, grading ring and suspension clamp; Wherein,
Described hitch point gold utensil is used for being connected with the body of the tower cross-arm at the suspension insulator top; Described grading ring is positioned at described suspension insulator middle and lower part, is used for uniform insulation substring surface voltage; Described suspension clamp is positioned at described suspension insulator bottom, is used for hanging transmission pressure;
The insulator of described 160kN duplex V-type suspension insulator adopts composite insulator, and type of attachment adopts ring, 0 ° of connection of ring; The assembly type of described 160kN duplex V-type suspension insulator adopts V serial type formula.
2. according to claim 1 ± 400kV DC line 160kN duplex V-type suspension insulator is characterized in that, the wire hitch point of described suspension insulator adopts LT trunnion hanging panel gold utensil to be connected with the body of the tower cross-arm.
3. according to claim 1 ± 400kV DC line 160kN duplex V-type suspension insulator is characterized in that, the hanging conductor clamp of described suspension insulator adopts the anti-corona suspension clamp of handbag type.
4. according to claim 1 ± 400kV DC line 160kN duplex V-type suspension insulator, it is characterized in that the material of the connection gold utensil of described suspension insulator is container slab, structural alloy steel, carbon constructional quality steel, austenitic stainless steel, aluminum or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201521534U CN202816507U (en) | 2012-04-12 | 2012-04-12 | A 160kN double-connected V-shaped suspension insulator string of a plus-minus 400kV DC line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201521534U CN202816507U (en) | 2012-04-12 | 2012-04-12 | A 160kN double-connected V-shaped suspension insulator string of a plus-minus 400kV DC line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816507U true CN202816507U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201521534U Expired - Lifetime CN202816507U (en) | 2012-04-12 | 2012-04-12 | A 160kN double-connected V-shaped suspension insulator string of a plus-minus 400kV DC line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816507U (en) |
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2012
- 2012-04-12 CN CN2012201521534U patent/CN202816507U/en not_active Expired - Lifetime
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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 |
Owner name: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA Free format text: FORMER NAME: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Patentee after: DC Construction Branch, State Grid Corp. of China Patentee after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: Shaanxi Electric Power Design Institute Address before: 22 No. 710075, unity South Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Patentee before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee before: DC Construction Branch, State Grid Corp. of China Patentee before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Patentee before: Shaanxi Electric Power Design Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |