CN108074687A - Outdoor composite insulation high pressure lightning protection pillar - Google Patents
Outdoor composite insulation high pressure lightning protection pillar Download PDFInfo
- Publication number
- CN108074687A CN108074687A CN201810072875.0A CN201810072875A CN108074687A CN 108074687 A CN108074687 A CN 108074687A CN 201810072875 A CN201810072875 A CN 201810072875A CN 108074687 A CN108074687 A CN 108074687A
- Authority
- CN
- China
- Prior art keywords
- insulation
- lightning protection
- insulation tube
- metal oxide
- ring flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002184 metal Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 13
- 239000004945 silicone rubber Substances 0.000 claims abstract description 12
- 239000011152 fibreglass Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 10
- 230000032683 aging Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 4
- 230000003373 anti-fouling Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009422 external insulation Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound 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[Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
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- 239000004593 Epoxy Substances 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
- H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
Abstract
The present invention relates to electric system high-voltage technologies and equipment manufacturing technical field, more particularly to a kind of outdoor composite insulation high pressure lightning protection pillar, including insulation tube, the upper end of insulation tube sets upper metal ring flange, the lower end of insulation tube sets lower metal ring flange, the inside filling metal oxide valve block group of insulation tube, the outside of insulation tube is arranged silicone rubber jacket, full skirt is set on silicone rubber jacket；The present invention is combined the insulation of conventional high-pressure insulation column, support performance are integrated with the lightning protection properties of metal oxide arrester; both dielectric level is improved; there is good lightning protection effect again; it substation bus bar or access location can install and use outdoors; place space can either be saved; convenient for the compact Layout between electrical equipment; it can shorten and by the electrical mounting distance of protection equipment; effectively increase Transformer Substation Lightning Protection level; be conducive to improve the reliability of power supply, reduce a series of economic losses that equipment belt is damaged due to insulation breakdown.
Description
Technical field
The present invention relates to electric system high-voltage technologies and equipment manufacturing technical field, and in particular to a kind of open air is compound absolutely
Edge high pressure lightning protection pillar.
Background technology
Fast-developing with China's industrialization, urbanization, society's electricity consumption amount is significantly increased, national economy and power train construction in a systematic way
If development is swift and violent, installed capacity, power grid scale and Analyzing Total Electricity Consumption have beaten the world, but since All population capacities are big, with
Advanced country is still relatively low compared to electricity consumption level per capita, and following electricity needs will keep rapid growth trend for a long time, and power grid is built
It is increasing transporting and building substation if in the ascendant.Meanwhile requirement of the socio-economic development to power supply reliability is also more next
It is higher, requirements at the higher level are proposed to the safe and reliable operation of power supply unit.
The generation of dielectric breakdown accident, substation's construction caused by ensure electrical safety distance and preventing lightning surge
Substantial amounts of high-voltage insulation strut and metal oxide arrester are needed with old transformer station transformation, such as：Outdoor substation busbar
A large amount of high-voltage insulation struts and metal oxide arrester are just needed with circuit inlet wire, both as important transformation device, especially
Be existing structure composite insulation metal oxide arrester make moist problem of aging protrusion, running ageing rate and failure rate are inclined
Height, the security reliability of operation receive power supply safety the concern of insider always.At present conventional high-pressure insulation column and
Metal oxide arrester can only take independent mounting means.High-voltage insulation strut is installed on substation bus bar framework for branch
Support tube type bus simultaneously insulate, then by the lead of certain length with connecting mounted on metal oxide arrester on ground architecture
It connects, to limit the lightning surge on busbar；Circuit inlet wire segment distance reaches certain length, it is necessary to by mounted on ground structure
High-voltage insulation strut on frame is given to support and fix, prevent lead it is long cause over the ground with alternate electrical safety distance deficiency,
Or the excessive damage miscellaneous equipment of mechanical stress, since the metal oxide arrester of existing structure does not possess load function, simultaneously
To prevent lightning wave invades substation along overhead transmission line from causing transformer equipment dielectric breakdown accident, and need only in enter line side installation
Vertical metal oxide arrester, adds floor space, be also unfavorable for the performance of lightning protection function, it is necessary to explore more safety can
The thunder-lightning overvoltage measure leaned on.
The content of the invention
In order to solve the above-mentioned technical problem the deficiency in, it is an object of the invention to：It is high to provide a kind of outdoor composite insulation
Lightning protection pillar is pressed, had not only ensured its electric insulation level, mechanical strength, but also has good lightning protection effect, when can avoid being struck by lightning
Lightning surge invades substation along overhead transmission line and transformer equipment is caused to damage, and can improve the reliability of power supply, reduce because
Insulation breakdown and a series of economic losses damaged equipment and brought.
The present invention is that technical solution is used by solving its technical problem：
The outdoor composite insulation high pressure lightning protection pillar, including insulation tube, the upper end of insulation tube sets upper metal flange
Disk, the lower end of insulation tube set lower metal ring flange, the inside filling metal oxide valve block group of insulation tube, insulation tube it is outer
Portion is arranged silicone rubber jacket, and full skirt is set on silicone rubber jacket.
Preferably, metal oxide valve block group is cylindric to be laminated by multi-disc metal oxide valve block suit, upper end
Cylindrical metal oxide valve block be connected with upper metal ring flange, the cylindrical metal oxide valve block of lower end and lower part
Metal flange is connected, specific to be connect using sealing sleeve structure is closely coupled, ensures that lightning current aerial drainage circuit is unimpeded, and energy
The integral insulation performance of device is improved, the anti-moisture superior performance of sealing sleeve structure effectively slows down metal oxide valve block fortune
Under row voltage the problem of aging.
Preferably, insulation tube is high-strength epoxy insulation resin pipe or fiberglass insulating tube, and insulation tube is hollow ring structure,
Tube wall thickness is uniform, and the tube length and electric insulation level of insulation tube can bear the normal operating voltage of corresponding voltage grade
With various overvoltage, load ability and mechanical strength meet the various stress demands in place to use, and the surface of internal cavity of insulation tube is smooth,
The mechanical strength and electrical insulation properties of the hollow ring structure of composition have a clear superiority compared with the cylindrical structural of homogenous quantities.
Preferably, silicone rubber jacket and full skirt are sleeved on the outer surface of insulation tube, forming apparatus by adhesive bonding
External insulation, for strengthening exterior insulation, increase creepage distance, improve antifouling work ability, and with the secondary seal in structure
Function.
Preferably, screw hole is opened up on upper metal ring flange and lower metal ring flange, main function is connection and consolidates
It is fixed, the effect of sealing is also functioned to, lower metal ring flange is connected with Equipment Foundations, is bolted；Upper metal ring flange
With fixing terminal, for fixing and supporting the metallic conductor in substation, to keep live part and ground connection or other charged
Electrical safety distance between body.
Compared with prior art, the invention has the advantages that：
The present invention is by the lightning protection properties one of the insulation of conventional high-pressure insulation column, support performance and metal oxide arrester
Bodyization combines, and not only improves dielectric level, but also has good lightning protection effect, can substation bus bar or access location installation outdoors
Use, place space can either be saved, convenient for the compact Layout between electrical equipment, but separately installed arrester can be saved must
Basis, shaft tower and the guide wire of palpus and its connection gold utensil etc., reduce construction and equipment maintenance work amoun, can shorten with being protected
The electrical mounting distance of equipment is protected, effectively increases Transformer Substation Lightning Protection level, is conducive to improve the reliability of power supply, reduces because absolutely
Edge punctures and damages a series of economic losses of equipment belt.
Cylindrical metal oxide valve block is set with stepped construction using multicolumn, and sealing is inside insulation tube, the annular of composition
The electrical insulation properties and mechanical strength of structure have a clear superiority compared with the cylindrical structural of homogenous quantities, and homogenous quantities annular diameter
It is big compared with body diameter, be conducive to the performance that electric field is distributed more uniform single valve block performance, absorb the ability of overvoltage more
Superior, upper and lower part metal flange connects with metal oxide valve block group using sealing sleeve structure is closely coupled, ensures lightning current
Aerial drainage circuit is unimpeded, and can improve the integral insulation performance of device, and the anti-moisture superior performance of sealing sleeve structure effectively slows down
Problem of aging under metal oxide valve block working voltage.
The epoxy resin or fiberglass insulating tube of use are easily fabricated, and molding assembly is good, and epoxy resin or fiberglass are exhausted
Edge pipe itself has high mechanical shock resistance, and intensity is high, corrosion-resistant, ageing-resistant performance is strong, and electrical insulation properties are good, with use
Other materials good compatibility, and it is anti-electricity, heat ageing and service life it is long, for external insulation silicon rubber insulation sheath and its absolutely
Edge full skirt has the characteristics that antifouling work, electric erosion resistance are strong convenient for manufacture and suit.
This lightning protection pillar, more light-weight than porcelain high-voltage insulation strut, the comprehensive cost of integral structure is cheap, metal oxide
Valve block field strength distribution uniformly makes its robust to repeated Motor ability strong, also can as the back-up protection measure of substation's internal overvoltage,
Due to the exclusive voltammetric features of metal oxide valve block, the residual voltage for making the lightning surge of installation place is lower, and interspike intervals are short, peace
Full performance higher.
Description of the drawings
Fig. 1 the structural representation of present invention.
In figure：1st, screw hole；2nd, upper metal ring flange；3rd, metal oxide valve block group；4th, metal oxide valve block；5th, absolutely
Edge pipe；6th, silicone rubber jacket；7th, full skirt；8th, lower metal ring flange.
Specific embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figure 1, outdoor composite insulation high pressure lightning protection pillar of the present invention, including insulation tube 5, insulation tube 5 is height
Strong epoxy resins insulation pipe or fiberglass insulating tube, insulation tube 5 are hollow ring structure, and tube wall thickness is uniform, the pipe of insulation tube 5
Body length and electric insulation level can bear the normal operating voltage of corresponding voltage grade and various overvoltage, load ability and
Mechanical strength meets the various stress demands in place to use, and the surface of internal cavity of insulation tube 5 is smooth, the machine of the hollow ring structure of composition
Tool intensity and electrical insulation properties have a clear superiority compared with the cylindrical structural of homogenous quantities；The upper end of insulation tube 5 sets top gold
Belong to ring flange 2, the lower end of insulation tube 5 sets lower metal ring flange 8, the inside filling metal oxide valve block group of insulation tube 5
3, metal oxide valve block group 3 is cylindric, is laminated by the suit of multi-disc metal oxide valve block 4, the cylinder gold of upper end
Belong to oxide valve block 4 with upper metal ring flange 2 to be connected, cylindrical metal oxide valve block 4 and the lower metal method of lower end
Blue disk 8 is connected, specific to be connect using sealing sleeve structure is closely coupled, ensures that lightning current aerial drainage circuit is unimpeded, and can improve
The integral insulation performance of device, the anti-moisture superior performance of sealing sleeve structure, effectively slows down metal oxide valve block 4 and runs electricity
The problem of depressing aging；The outside of insulation tube 5 is arranged silicone rubber jacket 6, and full skirt 7, silicone rubber jacket are set on silicone rubber jacket 6
6 and full skirt 7 outer surface of insulation tube 5 is sleeved on by adhesive bonding, the external insulation of forming apparatus, for strengthen it is external absolutely
Edge increases creepage distance, improves antifouling work ability, and with the secondary sealing function in structure.
Wherein, screw hole 1 is opened up on upper metal ring flange 2 and lower metal ring flange 8, main function is connection and consolidates
It is fixed, the effect of sealing is also functioned to, lower metal ring flange 8 is connected with Equipment Foundations, is bolted；Upper metal ring flange
2 carry fixing terminal, for fixing and supporting the metallic conductor in substation, to keep live part and ground connection or other charged
Electrical safety distance between body.
The operation principle and specific work process of the present invention：
Metal oxide valve block group 3 has good nonlinear characteristic, under system normal operating voltage, metal oxide
3 leakage current of valve block group is only microampere order, and state of insulation is presented, once lightning surge ripple is invaded along overhead transmission line, moment is in
The grounded net of lightning current is leaked into the earth, thunder and lightning by existing conducting state, lightning current by lower metal ring flange 8 and its earthing or grounding means
Ripple terminates and recovers to state of insulation.
The above is only the preferable case study on implementation of the present invention, is not that the invention has other forms of limitations,
Any person skilled in the art is changed or is modified as equivalent variations possibly also with the technology contents of the disclosure above
Equivalent embodiment.But it is every without departing from technical solution of the present invention content, technical spirit according to the invention is to above example
Any simple modification, equivalent variations and the remodeling made still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. a kind of outdoor composite insulation high pressure lightning protection pillar, including insulation tube (5), the upper end of insulation tube (5) sets upper metal
Ring flange (2), the lower end of insulation tube (5) set lower metal ring flange (8), which is characterized in that the inside filling of insulation tube (5)
Metal oxide valve block group (3), the outside of insulation tube (5) are arranged silicone rubber jacket (6), and silicone rubber jacket sets full skirt on (6)
(7)。
2. outdoor composite insulation high pressure lightning protection pillar according to claim 1, which is characterized in that metal oxide valve block group
(3) to be cylindric, it is laminated by multi-disc metal oxide valve block (4) suit.
3. outdoor composite insulation high pressure lightning protection pillar according to claim 1, which is characterized in that insulation tube (5) is high-strength
Epoxy resins insulation pipe or fiberglass insulating tube, insulation tube (5) are hollow ring structure, and surface of internal cavity is smooth.
4. the outdoor composite insulation high pressure lightning protection pillar according to claim 1 or 3, which is characterized in that silicone rubber jacket (6)
And full skirt (7) is sleeved on the outer surface of insulation tube (5) by adhesive bonding.
5. outdoor composite insulation high pressure lightning protection pillar according to claim 1, which is characterized in that upper metal ring flange
(2) and on lower metal ring flange (8) screw hole (1) is opened up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072875.0A CN108074687A (en) | 2018-01-25 | 2018-01-25 | Outdoor composite insulation high pressure lightning protection pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810072875.0A CN108074687A (en) | 2018-01-25 | 2018-01-25 | Outdoor composite insulation high pressure lightning protection pillar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108074687A true CN108074687A (en) | 2018-05-25 |
Family
ID=62157050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810072875.0A Withdrawn CN108074687A (en) | 2018-01-25 | 2018-01-25 | Outdoor composite insulation high pressure lightning protection pillar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108074687A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729097A (en) * | 2019-10-16 | 2020-01-24 | 江苏海开电气有限公司 | Light-transmitting box-type transformer |
| CN111585203A (en) * | 2020-05-26 | 2020-08-25 | 广东电网有限责任公司 | Lightning protection grounding system |
-
2018
- 2018-01-25 CN CN201810072875.0A patent/CN108074687A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729097A (en) * | 2019-10-16 | 2020-01-24 | 江苏海开电气有限公司 | Light-transmitting box-type transformer |
| CN111585203A (en) * | 2020-05-26 | 2020-08-25 | 广东电网有限责任公司 | Lightning protection grounding system |
| CN111585203B (en) * | 2020-05-26 | 2021-10-26 | 广东电网有限责任公司 | Lightning protection grounding system |
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Application publication date: 20180525 |
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| WW01 | Invention patent application withdrawn after publication |