CN201336189Y - Plus or minus 500kV direct current rod post porcelain insulator - Google Patents
Plus or minus 500kV direct current rod post porcelain insulator Download PDFInfo
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- CN201336189Y CN201336189Y CNU200820228485XU CN200820228485U CN201336189Y CN 201336189 Y CN201336189 Y CN 201336189Y CN U200820228485X U CNU200820228485X U CN U200820228485XU CN 200820228485 U CN200820228485 U CN 200820228485U CN 201336189 Y CN201336189 Y CN 201336189Y
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- porcelain insulator
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Abstract
本实用新型涉及一种±500kV直流棒形支柱瓷绝缘子，包括绝缘子单元件和法兰，其特征在于：所述绝缘子由五个或五个以上绝缘子单元件通过法兰依次连接组成，所述绝缘子单元件的伞形为等径深棱伞结构。该种瓷绝缘子的伞形设计为等径深棱形结构，易于阻止直流污秽电弧的发展，并且在同样的机械强度要求下，该瓷绝缘子比传统瓷绝缘子高度低，合格率高。并且本实用新型的均压环采用单环结构，不但无线电干扰水平很低，而且电晕熄灭电压较高。
The utility model relates to a ±500kV DC rod-shaped pillar porcelain insulator, which includes insulator unit elements and flanges, and is characterized in that: the insulator is composed of five or more than five insulator unit elements sequentially connected through flanges, and the insulator The umbrella shape of the single element is an equal-diameter deep-prismatic umbrella structure. The umbrella shape of this kind of porcelain insulator is designed as an equal-diameter deep prismatic structure, which is easy to prevent the development of DC dirty arcs, and under the same mechanical strength requirements, the porcelain insulator is lower in height than traditional porcelain insulators and has a higher pass rate. Moreover, the pressure equalizing ring of the utility model adopts a single-ring structure, which not only has a very low level of radio interference, but also has a relatively high corona extinguishing voltage.
Description
Technical field
The utility model belongs to high-tension insulator and makes the field, relates to a kind of high-tension insulator, relates in particular to a kind of ± 500kV direct-current solid-core post porcelain insulator.
Background technology
The general four joint porcelain insulator elements that adopt of ± 500kV direct-current solid-core post porcelain insulator assemble.Under the constant situation of dry arcing distance, entire product show as in appearance height, big, to make qualification rate low.Be difficult to make in batches, be difficult to satisfy the needs of China's direct current transportation fast development.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of ± 500kV direct-current solid-core post porcelain insulator is provided, the umbrella shape of this kind porcelain insulator is designed to isometrical dark prismatic structure, be easy to stop the development of the filthy electric arc of direct current, and under same requirement of mechanical strength, this porcelain insulator is lower than traditional porcelain insulator height, the qualification rate height.
The purpose of this utility model solves by the following technical programs:
This ± the 500kV direct-current solid-core post porcelain insulator, comprise grading ring, insulator unit piece and flange, it is characterized in that: described insulator is connected to form by flange successively by five or five above insulator unit pieces, and the unary umbrella shape of described insulator is isometrical dark rib umbrella structure.
The unary height of above-mentioned insulator is 1700mm.
Above-mentioned insulator equalizing ring diameter of section is φ 120mm.
The unary umbrella spacing of above-mentioned insulator is 1 with the ratio of gamp outreach.
Because the utility model is to be connected to form successively by five joint insulator unit pieces, whole insulator height overall 8500mm, the high 500mm of height than the product of being made up of four joint porcelain insulator unit pieces can reduce manufacture difficulty so greatly.Under same requirement of mechanical strength, the porcelain insulator element heights is low, and qualification rate and product quality all increase.The utility model is guaranteeing under the creepage condition than distance umbrella shape to be designed to isometrical dark prismatic structure, and this kind beveled structure is easy to stop the development of the filthy electric arc of direct current.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an isometrical dark rib umbrella structural representation of the present utility model;
Fig. 3 is the physical dimension figure of grading ring 6.
Fig. 4 is ± the physical dimension figure of 500kV direct current solid core post insulator.
Wherein: 1 is the first insulator unit piece; 2 is the second insulator unit piece; 3 is the 3rd insulator unit piece; 4 is the 4th insulator unit piece; 5 is pentasyllabic quatrain edge subelement spare; 6 is grading ring.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
With reference to Fig. 1 is structural representation of the present utility model, and this insulator is connected to form by flange successively by five or five above insulator unit pieces, and the unary umbrella shape of described insulator is an isometrical dark rib umbrella structure (as Fig. 2).The unary height of described each insulator is 1700mm; The unary umbrella spacing of described insulator is 1 with the ratio of gamp outreach.
Embodiment
As Fig. 4 is a kind of physical dimension figure of ± 500kV direct current solid core post insulator, this product is assembled successively by five joint insulator unit pieces, be respectively: the first insulator unit piece 1, the second insulator unit piece 2, the 3rd insulator unit piece 3, the 4th insulator unit piece 4 and pentasyllabic quatrain edge subelement spare 5, height overall 8500mm, each insulator unit piece element heights is 1700mm.The umbrella number of the first insulator unit piece 1 is 15, and average diameter is φ 265mm, and for making things convenient for formed product, last main body directly is φ 170mm, and following main body is φ 200mm directly, and bending stress has only 27.7MPa, and hanging burning stress is 0.078MPa; The size of the second insulator unit piece 2 is identical with the first insulator unit piece 1, but its bending stress has only 55.4MPa, and hanging burning stress is 0.078MPa; The umbrella number of the 3rd insulator unit piece 3 is 15, and average diameter is φ 290mm, and main body directly is φ 200mm, and bending stress is 51MPa, and hanging burning stress is 0.066MPa; The umbrella number of the 4th insulator unit piece 4 is 14, and average diameter is φ 310mm, and main body directly is φ 215mm, and bending stress is 54.7MPa, and hanging burning stress is 0.067MPa; The umbrella number of pentasyllabic quatrain edge subelement spare 5 is 14, and average diameter is φ 325mm, and main body directly is φ 230mm, lower diameter φ 235mm, and bending stress is 52.3MPa, hanging burning stress is 0.062MPa; Maximum stress hangs and burns stress less than 0.08MPa less than 65MPa under the unary bending failure situation of each insulator; Product is reliable, and nargin is bigger.Under 8 earthquake intensity earthquake conditions, nargin is 1.782 times, greater than 1.67 requirements.In addition the physical dimension figure of the grading ring in the present embodiment 6 as shown in Figure 3, grading ring 6 adopts single ring architectures, its ring diameter of section is φ 120mm, radio interference is 279 μ v under 750kV; The corona extinction voltage is 640.2kV.
The average diameter of whole post product is φ 291mm, and less than φ 300mm, creepage distance does not need to proofread and correct.In order to increase reliability of products, this product creepage distance is pressed 28000mm.
The utility model adopts five joint insulator unit pieces to connect to form successively, whole insulator height overall 8500mm, the high 500mm of height than the product of forming by four joint porcelain insulator unit pieces, but single porcelain insulator unit piece is lower than the unary height of four joint porcelain insulators, can reduce manufacture difficulty greatly like this.Satisfying under the same requirement of mechanical strength, the qualification rate and the quality of product all increase.Grading ring of the present utility model adopts single ring architecture, and not only radio interference level is very low, and the corona extinction voltage is higher.The utility model is guaranteeing under the creepage condition than distance umbrella shape to be designed to isometrical dark prismatic structure, and this kind beveled structure is easy to stop the development of the filthy electric arc of direct current.
Claims (4)
1. one kind ± 500kV direct-current solid-core post porcelain insulator, comprise grading ring, insulator unit piece and flange, it is characterized in that: described insulator is connected to form by flange successively by five or five above insulator unit pieces, and the unary umbrella shape of described insulator is isometrical dark rib umbrella structure.
2. according to claim 1 ± the 500kV direct-current solid-core post porcelain insulator, it is characterized in that: the unary height of described insulator is 1700mm.
3. according to claim 1 ± the 500kV direct-current solid-core post porcelain insulator, it is characterized in that: described insulator equalizing ring diameter of section is φ 120mm.
4. according to claim 1 ± the 500kV direct-current solid-core post porcelain insulator, it is characterized in that: the unary umbrella spacing of described insulator is 1 with the ratio of gamp outreach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820228485XU CN201336189Y (en) | 2008-12-26 | 2008-12-26 | Plus or minus 500kV direct current rod post porcelain insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820228485XU CN201336189Y (en) | 2008-12-26 | 2008-12-26 | Plus or minus 500kV direct current rod post porcelain insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201336189Y true CN201336189Y (en) | 2009-10-28 |
Family
ID=41287849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820228485XU Expired - Lifetime CN201336189Y (en) | 2008-12-26 | 2008-12-26 | Plus or minus 500kV direct current rod post porcelain insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201336189Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110050312A (en) * | 2016-12-06 | 2019-07-23 | 拜耳沃克有限公司 | High-tension insulator with arcing ring |
-
2008
- 2008-12-26 CN CNU200820228485XU patent/CN201336189Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110050312A (en) * | 2016-12-06 | 2019-07-23 | 拜耳沃克有限公司 | High-tension insulator with arcing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XI'AN XD HIGH VOLTAGE PORCELAIN INSULATOR CO., LTD. Assignor: China XD Electronic Corporation Contract record no.: 2013610000028 Denomination of utility model: Plus or minus 500kV direct current rod post porcelain insulator Granted publication date: 20091028 License type: Exclusive License Record date: 20130425 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |