CN201017730Y - Extra-high voltage composite bottom prop insulator - Google Patents
Extra-high voltage composite bottom prop insulator Download PDFInfo
- Publication number
- CN201017730Y CN201017730Y CNU2007200186720U CN200720018672U CN201017730Y CN 201017730 Y CN201017730 Y CN 201017730Y CN U2007200186720 U CNU2007200186720 U CN U2007200186720U CN 200720018672 U CN200720018672 U CN 200720018672U CN 201017730 Y CN201017730 Y CN 201017730Y
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- high voltage
- insulator
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Abstract
The utility model relates to a post insulator, in particular to an ultra-high voltage compound post insulator used for an outdoor open type distribution device. The ultra-high voltage compound post insulator of the utility model consists of an insulating body and a shielding ring fixed at the upper end of the insulating body, the insulating body consists of a core body and an umbrella shape skirt sheath, the core body is a hollow circular cylinder and is made of glass reinforced plastic material, the umbrella shape skirt sheath is positioned at the periphery of the core body and is made of silicone rubber material. The ultra-high voltage compound post insulator of the utility model is that a core rod and the umbrella shape skirt sheath respectively bear the mechanical and electrical load, to separate the mechanical strength and the outer insulating property off, thereby integrating the advantages of atmospheric pollution resistance, superior ageing performance, and good tension mechanical behavior of the core rod material, to meet each performance index to operate the 1000 KV ultra-high voltage electric network.
Description
(1) technical field
The utility model 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 utility model 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 utility model is realized by following measure:
Ultra-high voltage compound brace insulator of the present utility model, 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 utility model, 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 utility model, 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 utility model 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 utility model 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 utility model
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
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, ultra-high voltage compound brace insulator of the present utility model 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 utility model 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 |
|---|---|---|---|
| CNU2007200186720U CN201017730Y (en) | 2007-02-09 | 2007-02-09 | Extra-high voltage composite bottom prop insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200186720U CN201017730Y (en) | 2007-02-09 | 2007-02-09 | Extra-high voltage composite bottom prop insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017730Y true CN201017730Y (en) | 2008-02-06 |
Family
ID=39058228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200186720U Expired - Lifetime CN201017730Y (en) | 2007-02-09 | 2007-02-09 | Extra-high voltage composite bottom prop insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017730Y (en) |
Cited By (1)
| 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 |
-
2007
- 2007-02-09 CN CNU2007200186720U patent/CN201017730Y/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |
|
| CX01 | Expiry of patent term |