CN207705717U - Electric system compound inslation lightning protection wall bushing - Google Patents
Electric system compound inslation lightning protection wall bushing Download PDFInfo
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- CN207705717U CN207705717U CN201820130062.8U CN201820130062U CN207705717U CN 207705717 U CN207705717 U CN 207705717U CN 201820130062 U CN201820130062 U CN 201820130062U CN 207705717 U CN207705717 U CN 207705717U
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- tube body
- outdoor
- metal oxide
- insulation tube
- valve block
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Abstract
The utility model is related to electric system equipment manufacturing technical fields, more particularly to a kind of electric system compound inslation lightning protection wall bushing, including the tube body that insulate, electric conductor is arranged in the inside of insulation tube body, mounting flange is arranged in the middle part of insulation tube body, the portion outboard that insulation tube body is located at outdoor end is arranged metal oxide valve block group, the one end of metal oxide valve block group connect bolt with open air and outdoor conducting rod is connected, the other end of metal oxide valve block group is connected with mounting flange, and silicone rubber jacket full skirt is arranged in the outermost for the tube body that insulate；The utility model is by the combination integrated with the progress of the lightning protection properties of metal oxide arrester of the insulation performance of conventional wall bushing, both itself dielectric level of insulating sleeve had been improved, there is good lightning protection effect again, lightning surge when lightning stroke can be avoided to invade electric substation or switchgear house along overhead transmission line and indoor equipment is caused to damage, be conducive to improve power supply reliability.
Description
Technical field
The utility model is related to electric system equipment manufacturing technical fields, and in particular to a kind of electric system compound inslation
Lightning protection wall bushing.
Background technology
In recent years, due to the fast development of local economy and urban construction, society's electricity consumption amount is significantly increased, Indoor Substations
Or switchgear house is increasing in fortune and the quantity newly built, safe and reliable operation is most important, directly affects the reliable of power supply
Property, and lightning surge invades electric substation or distribution along overhead distribution (including 10 kilovolts, 35 kilovolts and 400 hint roads)
Room causes apparatus insulated accident to happen occasionally, over-voltage breakdown equipment, causes supply line and busbar to have a power failure, not only causes
The economic loss brought by equipment replacement, and seriously affect power supply safety, takes necessary lightning protection measures, reduction be struck by lightning into
It invades and to damage equipment breakdown extremely urgent.And the important dress that wall bushing is connect as overhead distribution with indoor equipment circuit
It sets, electric insulation level and the ability for itself bearing power-frequency overvoltage, switching overvoltage and lightning surge need further
Improve, block in this link or position, the lightning wave invaded along overhead transmission line of releasing, prevent mine transmitting device it is indoor cause it is other
Equipment breakdown is most important.
Country 13 starts new round city, the upgrading of rural power grids upgrades engineering, and to power supply reliability, more stringent requirements are proposed,
Distribution engineering is in the ascendant, and wall bushing also needs further as indispensable important device, requirement and reliability requirement
It increases.But till now always, to prevent lightning surge wave from invading, conventional wall bushing and arrester can only separate independently
Installation not only increases the application of supplementary material, and construction process requirement is high, also increases indoor equipment lightning impulse residual voltage
It is horizontal.Conventional measure is only mounted on metal oxide arrester in indoor switch cabinet or is mounted on special into line side at present
Be arranged on metallic support, electric substation or switchgear house because lightning stroke causes equipment damage cause the accident of power failure still when have hair
It is raw, there is an urgent need for taking technical measures, improve the protective capacities of overhead transmission line mine transmitting device.
Utility model content
In order to solve the above-mentioned technical problem the deficiency in, the purpose of this utility model is that：A kind of electric system use is provided
Compound inslation lightning protection wall bushing can improve itself dielectric level of insulation tube body and good lightning protection effect, can keep away
Lightning surge when exempting from lightning stroke invades electric substation or switchgear house along overhead transmission line and indoor equipment is caused to damage, and can improve confession
The reliability of electricity reduces a series of economic losses damaged equipment because of insulation breakdown and brought.
The utility model is that technical solution used by solving its technical problem is：
The inside setting of electric system compound inslation lightning protection wall bushing, including insulation tube body, the tube body that insulate is led
Mounting flange is arranged in the middle part of electric body, the tube body that insulate, and insulation tube body is divided into outdoor end and indoor end by mounting flange, and insulate tube body
The outdoor end cover of outdoor end setting, the outdoor connection bolt of setting and outdoor conducting rod on outdoor end cover, insulate tube body
Indoor end indoor end cover is set, indoor connection bolt and indoor conducting rod, insulation tube body are set on indoor end cover
It is arranged metal oxide valve block group positioned at the portion outboard of outdoor end, the one end of metal oxide valve block group connect spiral shell with open air
Bolt and outdoor conducting rod are connected, and the other end of metal oxide valve block group is connected with mounting flange, and insulate tube body
Silicone rubber jacket full skirt is arranged in outermost, and insulation is arranged between the silicone rubber jacket full skirt and metal oxide valve block group of outdoor end
Insulating layer is equally arranged between the silicone rubber jacket full skirt and insulation tube body at indoor end in layer.
Further preferably, insulation tube body is epoxy resin tube body or glass fibre reinforced plastic insulating tube body, and electric insulation level can
The various overvoltage of corresponding voltage grade are born, insulation tube body is hollow ring structure, and electric conductor is arranged in hollow ring structure
It is internal.
Further preferably, metal oxide valve block group is annular shape, is laminated by multi-disc metal oxide valve block suit,
It connect bolt with outdoor conducting rod and open air by the valve block of upper end and is connected, pass through the valve block and and non-magnet material of lower end
Metal mounting flange connection.
Further preferably, insulating layer is epoxy resin insulating layers, is sealed by the way of cast, and sealing structure is used for
With raising insulation performance.
Further preferably, mounting flange is the metal mounting flange of non-magnet material, is in integral structure with insulating layer, uses
The metal of non-magnet material is that galvanic circle generates eddy-current loss wherein and generates heat in order to prevent, and the setting of metal mounting flange exists
At wall mounting hole, be integrated with epoxy resin insulating layers, both connect with metal oxide valve block group on circuit, again with connect
Earth polar connects, and constitutes overvoltage leakage path.
Further preferably, electric conductor is steel-cored aluminium strand, annealed copper wire or copper aluminium row, is connected with the electrification in high voltage circuit of indoor and outdoor
It connects.
Compared with prior art, the utility model has the advantages that：
The lightning protection properties of the insulation performance of conventional wall bushing and metal oxide arrester are carried out one by the utility model
Bodyization combines, and has not only improved itself dielectric level of insulating sleeve, but also have good lightning protection effect, can avoid thunder when lightning stroke
Electric overvoltage invades electric substation or switchgear house along overhead transmission line and indoor equipment is caused to damage, and is conducive to improve power supply reliability,
Reduce a series of economic losses that equipment belt is damaged because of insulation breakdown；In addition, since the setting of metal oxide valve block group exists
Therefore the outside of inner insulating layer, the various overvoltage that the electric insulation level of itself can bear corresponding voltage grade avoid
It needs conventional wall bushing and arrester can only separate independently installed situation in the prior art, apparatus integration manufactures comprehensive
It closes at low cost, reduces and need installation cost caused by supplementary material, reduce difficulty of construction and equipment maintenance work amoun, energy
Indoor equipment electric insulation breakdown accident caused by lightning impulse is enough reduced, is conducive to improve power supply reliability.
Device integrally has simple in structure, and more light-weight than porcelain wall bushing, comprehensive cost is cheap, and installation O＆M is convenient, resistance to
The strong good characteristic of repetitive operation ability, is alternatively arranged as the back-up protection of internal overvoltage；Since metal oxide valve block is exclusive
Voltammetric features, keep the residual voltage of the lightning surge of installation place lower, interspike intervals are short, security performance higher.
Using epoxy resin or glass fibre reinforced plastic insulating tube body, it is easy to accomplish, good moldability, epoxy resin or fiberglass insulating tube
Body itself has high impact resistance, and high mechanical strength, corrosion resistance is strong, and electrical insulation properties are high, with the materials such as epoxy resin
Expect good compatibility, anti-thermal-electrical aging, long lifespan, and personalizable design and customization, is conducive to the preparation process of wall bushing
Realization, be also conducive to it is integrated with metal oxide valve block, serve external insulation silicon rubber insulation sheath and its parachute skirt just
In installation and replacement, there is excellent antifouling work and electric erosion resistance energy.
Insulating layer uses the packaging technology of poured with epoxy resin, and the electrical insulation properties of wall bushing and sealing performance is made to carry
Height improves the ability that wall bushing itself bears all kinds of overvoltage, is conducive to device safe and reliable operation.
Description of the drawings
The structural schematic diagram of Fig. 1 the utility model；
The vertical view of Fig. 2 the utility model.
In figure：1, outdoor conducting rod；2, outdoor connection bolt；3, outdoor end cover；4, silicone rubber jacket full skirt；5, golden
Belong to oxide valve block group；6, insulate tube body；7, outdoor end；8, mounting flange；9, insulating layer；10, indoor connection bolt；11, family
Interior sealing end cap；12, indoor conducting rod；13, indoor end.
Specific implementation mode
The utility model embodiment is described further below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figs. 1-2, electric system described in the utility model compound inslation lightning protection wall bushing, including insulation tube body
6, electric conductor is arranged in the inside of insulation tube body 6, and electric conductor is steel-cored aluminium strand, annealed copper wire or copper aluminium row, the high pressure with indoor and outdoor
Energized circuit connects, and insulation tube body 6 is epoxy resin tube body or glass fibre reinforced plastic insulating tube body, and electric insulation level can be born pair
It is hollow ring structure to answer the various overvoltage of voltage class, insulation tube body 6, and electric conductor is arranged in the inside of hollow ring structure,
Mounting flange 8 is arranged in the middle part of insulation tube body 6, and mounting flange 8 divides insulation tube body 6 for outdoor end 7 and indoor end 13, insulation tube
Outdoor end cover 3 is arranged in the outdoor end 7 of body 6, and outdoor connection bolt 2 and outdoor conducting rod 1 are arranged on outdoor end cover 3,
Indoor end cover 11 is arranged in the indoor end 13 of insulation tube body 6, and indoor connection bolt 10 and family are arranged on indoor end cover 11
Interior conducting rod 12, the portion outboard that insulation tube body 6 is located at outdoor end 7 are arranged metal oxide valve block group 5, metal oxide valve block
The one end of group 5 connect bolt 2 and outdoor conducting rod 1 is connected with outdoor, the other end of metal oxide valve block group 5 and
Mounting flange 8 is connected, specifically, metal oxide valve block group 5 is annular shape, is set with and is laminated by multi-disc metal oxide valve block
It forms, is directly sleeved on the outside of insulation tube body 6,2 phase of bolt is connect with outdoor conducting rod 1 and open air by the valve block of upper end
Connection, by the valve block of lower end with and the metal mounting flange 8 of non-magnet material connect, the outermost setting silicon for the tube body 6 that insulate
Rubber sheath full skirt 4 for exterior insulation and increases creepage distance, the silicone rubber jacket full skirt 4 and metal oxide of outdoor end 7
Insulating layer 9 is set between valve block group 5, insulating layer is equally set between the silicone rubber jacket full skirt 4 and insulation tube body 6 at indoor end 13
9。
Wherein, insulating layer 9 is epoxy resin insulating layers, is sealed by the way of cast, casts directly over outdoor end 7
Silicone rubber jacket full skirt 4 and metal oxide valve block group 5 between and indoor end 13 silicone rubber jacket full skirt 4 with insulation
Between tube body 6, for sealing structure and insulation performance is improved；Mounting flange 8 is the metal mounting flange 8 of non-magnet material, with
Insulating layer 9 is in integral structure, the metal using non-magnet material be in order to prevent galvanic circle generate eddy-current loss wherein and
Fever, metal mounting flange 8 be arranged at wall mounting hole, be integrated with epoxy resin insulating layers, on circuit both with metal
Oxide valve block group 5 connects, and is connect again with earthing pole, constitutes overvoltage leakage path.
The operation principle and specific work process of the utility model：
It is used as the insulation tube body 6 of support and basis insulation, electric insulation level can bear each of corresponding voltage grade
Kind overvoltage, the internal electric conductor being arranged are used to pass through indoor connection bolt 10 and open air connection bolt 2 and indoor and outdoor
Electrification in high voltage circuit connects, and metal oxide valve block group 5 is arranged only at 7 part of outdoor end, and the electrification of one end and outdoor side is returned
Road connects, and one end is electrically connected with mounting flange 8, and high resistance state of insulation is presented under normal operating voltage, once overvoltage wave
It is invaded along overhead transmission line, low-resistance conducting state is presented in moment, passes through the metal mounting flange 8 and its earthing or grounding means of non-magnet material
It releases lightning current, lightning wave terminates that high resistant state of insulation can be restored to.It is integrated between wall bushing each section material,
Realize that organic cooperation of mechanical property and electrical characteristic, the existing conventional energized circuit effect through walls of this wall bushing improve
The mechanical strength of wall bushing electric insulation level and structure, and restricted lightning overvoltage function, improve device bear it is various
The ability of overvoltage reduces indoor equipment electric insulation breakdown accident caused by lightning impulse, and being conducive to raising power supply can
By property.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example
Protect range.
Claims (6)
1. a kind of electric system compound inslation lightning protection wall bushing, including insulation tube body (6), the inside of insulation tube body (6) are set
Electric conductor, the middle part setting mounting flange (8) of insulation tube body (6) are set, insulation tube body (6) is divided into outdoor end by mounting flange (8)
(7) outdoor end cover (3) is set, is set on outdoor end cover (3) with indoor end (13), the outdoor end (7) of insulation tube body (6)
Outdoor connection bolt (2) and outdoor conducting rod (1) are set, indoor end cover (11) is arranged in the indoor end (13) of insulation tube body (6),
Indoor connection bolt (10) and indoor conducting rod (12) are set on indoor end cover (11), which is characterized in that insulation tube body (6)
Be arranged metal oxide valve block group (5) positioned at the portion outboard of outdoor end (7), the one end of metal oxide valve block group (5) with
Outdoor connection bolt (2) and outdoor conducting rod (1) are connected, the other end of metal oxide valve block group (5) and fixation
Blue (8) are connected, the outermost setting silicone rubber jacket full skirt (4) of insulation tube body (6), the silicone rubber jacket umbrella of outdoor end (7)
Between skirt (4) and metal oxide valve block group (5) be arranged insulating layer (9), the silicone rubber jacket full skirt (4) of indoor end (13) with absolutely
Insulating layer (9) is equally set between edge tube body (6).
2. electric system according to claim 1 compound inslation lightning protection wall bushing, which is characterized in that insulation tube body
(6) it is epoxy resin tube body or glass fibre reinforced plastic insulating tube body (6), insulation tube body (6) is hollow ring structure.
3. electric system according to claim 1 compound inslation lightning protection wall bushing, which is characterized in that metal oxide
Valve block group (5) is annular shape, is laminated by multi-disc metal oxide valve block suit.
4. electric system according to claim 1 compound inslation lightning protection wall bushing, which is characterized in that insulating layer (9)
For epoxy resin insulating layers, it is sealed by the way of cast.
5. electric system according to claim 1 compound inslation lightning protection wall bushing, which is characterized in that mounting flange
(8) it is the metal mounting flange (8) of non-magnet material, is in integral structure with insulating layer (9).
6. electric system according to claim 1 compound inslation lightning protection wall bushing, which is characterized in that electric conductor is steel
Core aluminum stranded wire, annealed copper wire or copper aluminium row, connect with the electrification in high voltage circuit of indoor and outdoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130062.8U CN207705717U (en) | 2018-01-25 | 2018-01-25 | Electric system compound inslation lightning protection wall bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130062.8U CN207705717U (en) | 2018-01-25 | 2018-01-25 | Electric system compound inslation lightning protection wall bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207705717U true CN207705717U (en) | 2018-08-07 |
Family
ID=63035676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820130062.8U Active CN207705717U (en) | 2018-01-25 | 2018-01-25 | Electric system compound inslation lightning protection wall bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207705717U (en) |
-
2018
- 2018-01-25 CN CN201820130062.8U patent/CN207705717U/en active Active
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