CN101017717A - Ultra-high voltage compound brace insulator - Google Patents
Ultra-high voltage compound brace insulator Download PDFInfo
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- CN101017717A CN101017717A CN 200710013556 CN200710013556A CN101017717A CN 101017717 A CN101017717 A CN 101017717A CN 200710013556 CN200710013556 CN 200710013556 CN 200710013556 A CN200710013556 A CN 200710013556A CN 101017717 A CN101017717 A CN 101017717A
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Abstract
The very-high voltage composite post insulator used for outdoor open-type power distribution unit comprises: an insulator included a hollow fiberglass-made core body and a silastic-made shed sheath, and a shielding ring fixed on top end of the insulator. This invention divides mechanical strength and outer insulation performance, integrates material advantages, such as resistance to atmospheric pollution, well aging performance and good tension, and fit to running performance index of 1000kV very-high voltage power network.
Description
(1) technical field
The present invention relates to a kind of post insulator, particularly a kind of outdoor open type power distribution equipment ultra-high voltage compound brace insulator.
(2) background technology
Traditional insulator such as porcelain and glass insulator are made by a kind of insulating element, this insulating element is that pottery or glass had both born mechanical load, bear electrical load again, raising along with electric pressure, increasing the weight of of the electromechanics load that insulator is suffered, and the aggravation of air pollution, adding the hydrophily of pottery or glass surface, porcelain or glass insulator in use expose defective intrinsic on the performance.Mainly show as: insulator punctures; Insulation property reduce under the filth condition, and are easily broken, and wet sudden strain of a muscle pollution flashover voltage is low etc.
At present, the post insulator great majority that are used for power plant, substation equipment both at home and abroad are porcelain insulator, because the electric pressure height, electric, mechanical performance requires high, complex manufacturing, the composite post insulator that the 1000KV extra-high voltage equipment is used is not also succeeded in developing.
(3) summary of the invention
The present invention is in order to overcome the deficiency of above technology; a kind of ultra-high voltage compound brace insulator is provided; plug and umbrella sheath are born machinery and electrical load respectively; mechanical strength and external insulation performance are separated, thereby combine the anti-air pollution of umbrella sheath material, ageing properties is superior and the mandrel material drawing mechanical performance is good advantage.
The present invention realizes by following measure:
Ultra-high voltage compound brace insulator of the present invention, form by insulator and the shading ring that is fixed with the insulator upper end, described insulator is that core body and umbrella sheath are formed, core body is the cylinder of hollow, make by glass-reinforced plastic material, umbrella sheath is positioned at the periphery of core body, is made by silastic material.
Ultra-high voltage compound brace insulator of the present invention, for easy to process, described core body and umbrella sheath are divided into two parts up and down, and two parts core body connects by flange.
Ultra-high voltage compound brace insulator of the present invention, described shading ring are twin nuclei, have both improved the whole Electric Field Distribution of insulator, again lead are connected gold utensil and play shielding action, greatly reduce radio interference level.
The present invention adopts dimensional finite element method, and electric, the mechanical performance of 1000KV ultra-high voltage compound brace insulator have been carried out detail analysis calculating, has optimized the post insulator structure, makes it satisfy every performance index of 1000KV extra-high voltage grid operation.Solve the production technology difficult problem of 1000KV ultra high voltage macrostructure size composite post insulator, produced qualified ultra-high voltage compound brace insulator.
Ultra-high voltage compound brace insulator of the present invention has the following advantages:
(1) satisfy 1000KV extra-high voltage grid service requirement, production technology advanced person, with short production cycle, percent defective is low, has good economic benefit.
(2) the intensity height is in light weight.The strength-weight ratio of composite insulator is very high, and promptly specific strength is very high.Its high mechanical properties comes from the excellent mechanical performance of expoxy glass rod, and its hot strength can reach 300MPa, and the tensile strength of porcelain only is 40MPa, and epoxy plug and only be 2g/cm as the silicon rubber density of full skirt material
3About, be significantly less than the density of porcelain.
(3) the good dirty performance of resistant, the wet pollution flashover voltage height that dodges.The hydrophobicity of silicon rubber low-energy surface is the main cause of the dirty performance of the excellent moisture-proof of insulator, moreover, operation a period of time, after the contamination of composite insulator surface, hydrophobicity can be moved to the pollution layer surface, under identical filthy degree, its pollution flashover voltage can reach identical leakage 2 times apart from porcelain insulator.
(4) operation maintenance is easy, is difficult for fragmentation, prevents contingency.The resistant of organic external insulation excellence is dodged the reliability that performance has improved power system operation, need not greatly reduce the operation and maintenance cost in filthy area as porcelain and the regular cleaning of glass insulator in filthy area.
(5) be difficult for fragmentation, prevent that contingency from taking place.The shock-resistant ability of composite insulator is strong, has significantly reduced cause in installation, the transportation unexpected damaged, and the destruction that can effectively prevent artificial destruction factors such as gunslinging.
(4) description of drawings
Fig. 1 is a parts decomposition texture schematic diagram of the present invention
Among the figure, 1 shading ring, 2 upper sealing panels, 3 upper end flanges save umbrella sheath on 4, upper flanges in the middle of 5, lower flanges in the middle of 6,7 times joint umbrella sheaths, 8 flange in the bottom, 9 lower seal plates, 10 core bodys.
(5) embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, ultra-high voltage compound brace insulator of the present invention is divided into two joints up and down, structure height is identical, be followed successively by from the top down shading ring 1, upper sealing panel 2, upper end flange 3, on save umbrella sheath 4, middle upper flange 5, middle lower flange 6, save umbrella sheath 7, flange in the bottom 8, lower seal plate 9 down, umbrella sheath is inner for being divided into two-part core body 10, and core body is connected as one by middle upper flange 5 and middle lower flange 6.
The shading ring 1 of unique twin nuclei had both improved the whole Electric Field Distribution of insulator, again lead was connected gold utensil and played shielding action, greatly reduced radio interference level.Upper end flange 3 is installed and is connected gold utensil and shading ring 1, and following joint flange in the bottom 8 is installed on the bottom base.All gold utensil is made up of aluminium alloy ZL101A, does not have the oxidation and rusting problem, and core body adopts the epoxy glass fiber material, the mechanical performance height, tensile strength height, core body hollow, be filled with the SF6 gas that drying is handled, the micro-water content of control core body inside prevents that the core body inner surface is subjected to cargo sweat.External insulation adopts liquid silastic to be injected directly into core outer surface and forms, and has excellent resistant and dodges, wets and dodge performance, and external insulation (umbrella sheath) directly bonds on the core outer surface, prevents that again core outer surface is subjected to cargo sweat.
The unique texture of silicon rubber composite post insulator of the present invention is a kind of cordwood system type assembling, is convenient to the mechanized operation automated production.At first finish the assembling of core body and flange, carry out liquid silastic injection moulding after the drying, fill SF6 gas after the vacuumize, can carry out delivery test after the leak detection, in order to transport, to store conveniently, shading ring can be installed when test and on-the-spot the use.
Claims (3)
1. ultra-high voltage compound brace insulator, form by insulator and the shading ring that is fixed with the insulator upper end, it is characterized in that: described insulator is that core body and umbrella sheath are formed, core body is the cylinder of hollow, make by glass-reinforced plastic material, umbrella sheath is positioned at the periphery of core body, is made by silastic material.
2. ultra-high voltage compound brace insulator according to claim 1 is characterized in that: described core body and umbrella sheath are divided into two parts up and down, and two parts core body connects by flange.
3. ultra-high voltage compound brace insulator according to claim 1 and 2 is characterized in that: described shading ring is a twin nuclei.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710013556 CN101017717A (en) | 2007-02-09 | 2007-02-09 | Ultra-high voltage compound brace insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710013556 CN101017717A (en) | 2007-02-09 | 2007-02-09 | Ultra-high voltage compound brace insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101017717A true CN101017717A (en) | 2007-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710013556 Pending CN101017717A (en) | 2007-02-09 | 2007-02-09 | Ultra-high voltage compound brace insulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN101017717A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005271A (en) * | 2010-12-20 | 2011-04-06 | 东莞市高能电气股份有限公司 | Sectional extra-high-voltage composite post insulator with inner umbrella structure |
| CN101645337B (en) * | 2009-09-03 | 2011-11-16 | 山东彼岸电力科技有限公司 | Compound insulating sleeve of extra-high voltage GIS incoming and outgoing line |
| CN102360646A (en) * | 2011-10-25 | 2012-02-22 | 保定天威集团有限公司 | Hollow composite insulator for 500-kV gas current transformer |
| CN107481818A (en) * | 2017-09-29 | 2017-12-15 | 扬州市双宝电力设备有限公司 | The ultra-high-voltage post composite insulator of unique construction |
| WO2018036083A1 (en) * | 2016-08-22 | 2018-03-01 | 江苏智达高压电气有限公司 | Novel structure extra-high-voltage direct current transformer bushing |
-
2007
- 2007-02-09 CN CN 200710013556 patent/CN101017717A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645337B (en) * | 2009-09-03 | 2011-11-16 | 山东彼岸电力科技有限公司 | Compound insulating sleeve of extra-high voltage GIS incoming and outgoing line |
| CN102005271A (en) * | 2010-12-20 | 2011-04-06 | 东莞市高能电气股份有限公司 | Sectional extra-high-voltage composite post insulator with inner umbrella structure |
| CN102005271B (en) * | 2010-12-20 | 2012-07-25 | 东莞市高能电气股份有限公司 | Sectional extra-high-voltage composite post insulator with inner umbrella structure |
| CN102360646A (en) * | 2011-10-25 | 2012-02-22 | 保定天威集团有限公司 | Hollow composite insulator for 500-kV gas current transformer |
| WO2018036083A1 (en) * | 2016-08-22 | 2018-03-01 | 江苏智达高压电气有限公司 | Novel structure extra-high-voltage direct current transformer bushing |
| CN107481818A (en) * | 2017-09-29 | 2017-12-15 | 扬州市双宝电力设备有限公司 | The ultra-high-voltage post composite insulator of unique construction |
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