CN109859943A - A kind of sheath assembly and bushing shell for transformer being homogenized electric field - Google Patents
A kind of sheath assembly and bushing shell for transformer being homogenized electric field Download PDFInfo
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- CN109859943A CN109859943A CN201910251866.2A CN201910251866A CN109859943A CN 109859943 A CN109859943 A CN 109859943A CN 201910251866 A CN201910251866 A CN 201910251866A CN 109859943 A CN109859943 A CN 109859943A
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- Prior art keywords
- insulation tube
- lower flange
- sheath
- sheath assembly
- conductive layer
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- 230000005684 electric field Effects 0.000 title claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 75
- 239000002131 composite material Substances 0.000 claims abstract description 34
- 229920000715 Mucilage Polymers 0.000 claims abstract description 31
- 239000000853 adhesive Substances 0.000 claims abstract description 31
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 17
- 230000004308 accommodation Effects 0.000 claims description 15
- 239000008601 oleoresin Substances 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims 1
- 239000008141 laxative Substances 0.000 abstract description 13
- 230000002475 laxative effect Effects 0.000 abstract description 13
- 239000012212 insulator Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- 230000007774 longterm Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 241001640558 Cotoneaster horizontalis Species 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- KHDSWONFYIAAPE-UHFFFAOYSA-N silicon sulfide Chemical compound S=[Si]=S KHDSWONFYIAAPE-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The present invention relates to transmission of electricity insulator arrangement fields, specifically disclose a kind of sheath assembly for being homogenized electric field, sheath assembly includes: insulation tube；Composite sheath is arranged and is fixed on outside the insulation tube, and the end of the insulation tube extends to outside the composite sheath；Lower flange is arranged and is fixed on outside the insulation tube and the composite sheath；The insulative pipe sleeve is equipped with the outer wall at the lower flange and is equipped with semi-conductive layer, and the semi-conductive layer is electrically connected with the lower flange.By the above method, semi-conductive layer plays the role of being homogenized electric field, and semi-conductive layer is electrically connected with lower flange, may make semi-conductive layer and laxative remedy your beautiful writings equipotential, prevents insulation tube and laxative remedy your beautiful writings from generating shelf depreciation because mucilage binding is bad or there are gap.Composite sheath substitutes insulator, alleviates quality, and installs more convenient；The gap of composite sheath and laxative remedy your beautiful writings is filled with composite material identical with composite sheath, thus the case where avoiding composite sheath and laxative remedy your beautiful writings there are gap, preventing shelf depreciation.
Description
Technical field
The present invention relates to transmission of electricity insulator arrangement fields, more particularly to a kind of sheath assembly and transformer set for being homogenized electric field
Pipe.
Background technique
Power transformer electric energy introduce and exit usually using low-voltage, high current bushing shell for transformer.The prior art
In, the bushing shell for transformer of low-voltage-grade generallys use insulator as external insulation, and insulator is big with weight, installation is difficult, resistance to pollution flashover
The disadvantages such as voltage is low.Meanwhile there are gaps between lower flange and insulator, the gap can not be filled up during oiling, easily lead to this
Shelf depreciation occurs for place.In addition, fixing between lower flange and insulation tube by mucilage binding, bubble is also easy to produce at mucilage binding so as to cause part
Electric discharge.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of sheath assemblies and bushing shell for transformer for being homogenized electric field, can
There are easily generate asking for shelf depreciation because mucilage binding is bad between gap and lower flange and insulation tube between solution lower flange and insulator
Topic.
In order to solve the above technical problems, one technical scheme adopted by the invention is that providing a kind of casing group for being homogenized electric field
Part, comprising: insulation tube；Composite sheath is arranged and is fixed on outside the insulation tube, and the end of the insulation tube extend to it is described multiple
It closes outside housing；Lower flange is arranged and is fixed on outside the insulation tube and the composite sheath；The insulative pipe sleeve is equipped with the laxative remedy
Outer wall at orchid is equipped with semi-conductive layer, and the semi-conductive layer is electrically connected with the lower flange.
Wherein, the outer wall of the insulation tube and/or the lower flange inner sidewall are equipped with mucilage binding slot, are equipped in the mucilage binding slot
Elastic component, the elastic component are electrically connected the lower flange and the semi-conductive layer.
Wherein, conducting rod is arranged in the insulation tube；Locating piece, described locating piece one end are connected to the conducting rod
Outer wall, the other end are connected to the insulation inside pipe wall, and then limit the radial deflection of the conducting rod.
Wherein, the outer wall of the conducting rod is equipped with the accommodation groove being caught in for the locating piece, and the locating piece is connected to institute
State accommodation groove inner wall.
Wherein, the accommodation groove is opened up around the outer wall of the conducting rod, and the locating piece is arc-shaped, and the circular arc
The circular arc of shape is major arc.
Wherein, the locating piece is located at the outer side of the accommodation groove and is provided with several oil-through-holes.
Wherein, the material of the locating piece is hard insulation.
Wherein, the lower flange is fixed with the insulation tube mucilage binding, is not filled by glue between the lower flange and the insulation tube
The gap of package material is filled with resistance to oleoresin.
Wherein, the material of the composite sheath includes high-temperature silicon disulfide rubber.
In order to solve the above technical problems, another technical solution used in the present invention is to provide a kind of bushing shell for transformer, institute
Bushing shell for transformer is stated using sheath assembly described in any of the above embodiments.
The beneficial effects of the present invention are: being in contrast to the prior art, by being arranged at lower flange outside insulation tube
Outer wall spray semi-conductive layer, semi-conductive layer plays the role of being homogenized electric field, and semi-conductive layer is electrically connected with lower flange, may make partly
Conductive layer and laxative remedy your beautiful writings equipotential prevent insulation tube from generating local put because mucilage binding is bad or there are gap with laxative remedy your beautiful writings
Electricity.Elastic component is equipped in the mucilage binding slot of insulation tube and flange, elastic component is electrically connected lower flange and semi-conductive layer, guarantees semi-conductive layer
It keeps stable between lower flange to be electrically connected, is further ensured that semi-conductive layer and laxative remedy your beautiful writings equipotential, further homogenizing electricity
Field distribution.The gap of encapsulated material is not filled between the lower flange and insulation tube of sheath assembly filled with resistance to oleoresin, oil resistant
Resin is filled with gap herein, is further homogenized field distribution, prevents shelf depreciation.Sheath assembly further includes conducting rod and determines
Position part, conducting rod are arranged in insulation tube, and locating piece one end is connected to conducting rod outer wall, the other end is connected to insulation inside pipe wall,
And then limit the radial deflection of conducting rod.Due to the restriction effect of locating piece, it is exhausted that conducting rod remains that it is located at during installation
The center of edge pipe is concentric cylinder electric field inside sheath assembly, and field distribution is uniform, prevent conducting rod installation hour offset and
Caused field strength distribution is uneven.In addition, the vibration in bushing shell for transformer operational process is easy to cause conducting rod to deviate and generate field
Strong distortion, field strength distorts caused by locating piece further prevents conducting rod to deviate because of the vibration in operational process, improves product
Long-term running stability.
Detailed description of the invention
Fig. 1 is the broken section structural schematic diagram of an embodiment of sheath assembly of the invention；
Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1；
Fig. 3 is the enlarged structure schematic diagram of part B in Fig. 1；
Fig. 4 is the broken section structural schematic diagram of the another embodiment of sheath assembly of the invention；
Fig. 5 is the structural schematic diagram of an embodiment of bushing shell for transformer of the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, rather than whole embodiments.Based on this
Embodiment in application, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall in the protection scope of this application.
Fig. 1 to Fig. 2 is please referred to, Fig. 1 is the broken section structural schematic diagram of an embodiment of sheath assembly of the invention；Figure
2 be the enlarged structure schematic diagram of part A in Fig. 1；Fig. 3 is the enlarged structure schematic diagram of part B in Fig. 1.
As depicted in figs. 1 and 2,01 1 embodiment of sheath assembly of the invention include insulation tube 11, composite sheath 12 and under
Flange 13, composite sheath 12, which is arranged, to be fixed on outside insulation tube 11, and the end of insulation tube 11 extends to outside composite sheath 12, laxative remedy
Orchid 13, which is arranged, is fixed on outside insulation tube 11 and composite sheath 12.Composite sheath 12 is made of composite material, compared to traditional
Insulator quality is lighter, and the gap between composite sheath 12 and lower flange 13 is filled with composite material identical with composite sheath 12,
There are gaps to avoiding between composite sheath 12 and lower flange 13, and then the case where prevent shelf depreciation.In addition, compound outer
It covers 12 direct injections to take shape in outside insulation tube 11, compared with insulator, produce easy for installation.Insulation tube 11 is arranged at lower flange 13
Outer wall be equipped with semi-conductive layer 111, semi-conductive layer 111 is arranged around 11 outer wall of insulation tube, and semi-conductive layer 111 plays homogenizing electric field
Effect, semi-conductive layer 111 is electrically connected with lower flange 13, may make equipotential between semi-conductive layer 111 and lower flange 13, prevents absolutely
Shelf depreciation is generated because mucilage binding is bad or there are gap between edge pipe 11 and lower flange 13.Composite sheath 12 is equipped at lower flange 13
Outer wall can also be equipped with semi-conductive layer 111, semi-conductive layer 111 around 12 outer wall of composite sheath be arranged, further be homogenized electric field.
Further, as shown in Figure 1, composite sheath 12 uses high-temperature silicon disulfide rubber, there is good hydrophobicity and hate
Water migration, can reduce pollution flashover and rain dodges probability, and in other embodiments, composite sheath 12 can also be compound absolutely using other
Edge material, is not construed as limiting herein.
Further, as depicted in figs. 1 and 2, semi-conductive layer 111 is the semiconductive varnish in 11 external spray of insulation tube,
In other embodiments, semi-conductive layer 111 can also be other materials, be not construed as limiting herein.
Further, as shown in Fig. 2, the outer wall of insulation tube 11 and 13 inner sidewall of lower flange are respectively equipped with the glue being oppositely arranged
Tankage 15, insulation tube 11 and lower flange 13 are relatively fixed by the encapsulated material being filled in mucilage binding slot 15, outside insulation tube 11
Wall and 13 inner sidewall of lower flange are respectively equipped with three mucilage binding slots 15 being oppositely arranged, and in other embodiments, mucilage binding slot 15 can be with
Be provided with one, two or more.In other embodiments, mucilage binding slot 15 can only be provided with 11 outer wall of insulation tube or
13 inner sidewall of lower flange；Alternatively, mucilage binding slot 15 can be opened in 13 inner sidewall of 11 outer wall of insulation tube and lower flange, but insulation tube respectively
The mucilage binding slot 15 of 13 inner sidewall of mucilage binding slot 15 and lower flange of 11 outer walls is not oppositely arranged, and is not construed as limiting herein.
Further, it is equipped with semi-conductive layer 111 in mucilage binding slot 15, is equipped with elastic component 151, semi-conductive layer in mucilage binding slot 15
111 can be electrically connected with lower flange 13 and directly contacting, but make electrical connection unstable because of dimensional fits problem in order to prevent
Fixed, elastic component 151 is contacted and is electrically connected with lower flange 13 and semi-conductive layer 111 respectively, to guarantee laxative remedy by elastic component 151
It keeps stablizing electrical connection between orchid 13 and semi-conductive layer 111, is further ensured that equipotential between semi-conductive layer 111 and lower flange 13, into
One step is homogenized field distribution.Elastic component 151 is arranged in a mucilage binding slot 15 or elastic component 151 may be provided at every
In mucilage binding slot 15；May be provided with multiple elastic components 151 in every mucilage binding slot 15, for example, two, three or more, thus more
Being electrically connected between good guarantee flange 13 and semi-conductive layer 111.
Further, elastic component 151 is metal spring, and in other embodiments, elastic component 151 can also be with other same
The part of function replaces, such as conductive sponge, electric silica gel, is not construed as limiting herein.
Further, as shown in figures 1 and 3, it is fixed between lower flange 13 and insulation tube 11 by mucilage binding, but lower flange 13
Far from easily there is the gap for being not filled with encapsulated material between 12 one end of composite sheath and insulation tube 11, gap is also easy to produce part and puts
Electricity is not filled with the gap of encapsulated material filled with resistance to oleoresin 16 between lower flange 13 and insulation tube 11, resistance to oleoresin 16 is filled out
Gap herein has been filled, field distribution is further homogenized, has prevented shelf depreciation, has improved the long-term running stabilization of product
Property.Resistance to oleoresin 16 has the characteristic of high temperature resistant oil resistant, can stablize and be filled in gap, is immersed in high-temperature transformer oil for a long time
It is not in the phenomenon that resistance to oleoresin 16 falls off.
In a specific implement scene, when sheath assembly 01 is installed, it is arranged with outside insulation tube 11 at lower flange 13
Outer wall spray semi-conductive layer 111, then set flange 13 in insulation tube 11 and 12 outer cover of composite sheath, lower flange 13 and absolutely
11 mucilage binding of edge pipe is fixed, and the semi-conductive layer 111 between lower flange 13 and insulation tube 11 plays the role of being homogenized electric field, semi-conductive layer
111 are electrically connected with lower flange 13, may make equipotential between semi-conductive layer 111 and lower flange 13, prevent insulation tube 11 and lower flange
Shelf depreciation is generated because mucilage binding is bad or there are gap between 13.And it is equipped in the mucilage binding slot 15 between lower flange 13 and insulation tube 11
Elastic component 151, elastic component 151 are electrically connected lower flange 13 and semi-conductive layer 111, ensure that lower flange 13 and semi-conductive layer 111 it
Between stable electrical connection, be further ensured that equipotential between semi-conductive layer 111 and lower flange 13, be further homogenized field distribution.It is multiple
It closes the useful composite material identical with composite sheath 12 in the gap between housing 12 and lower flange 13 to fill, to avoid composite sheath
There are gaps between 12 and lower flange 13, and then the case where prevent shelf depreciation.It is not filled by between lower flange 13 and insulation tube 11
There is the gap of encapsulated material filled with resistance to oleoresin 16, resistance to oleoresin 16 is filled with gap herein, is further homogenized electric field
Distribution, prevents shelf depreciation.
Referring to Fig. 4, Fig. 4 is the broken section structural schematic diagram of the another embodiment of sheath assembly of the invention.
The sheath assembly 02 of the present embodiment and the sheath assembly 01 in above-described embodiment are essentially identical, the difference is that,
As shown in figure 4, sheath assembly 02 further includes conducting rod 23 and locating piece 24.Conducting rod 23 is arranged in insulation tube 21, locating piece
24 one end are connected to 23 outer wall of conducting rod, the other end is connected to 21 inner wall of insulation tube, and then limit the radial deflection of conducting rod 23.
Due to the restriction effect of locating piece 24, conducting rod 23 remains that it is located at the center of insulation tube 21 during installation, that is, leads
The central axis of electric pole 23 and the central axis of insulation tube 21 are located at same straight line, are concentric cylinder electric field, electricity inside sheath assembly 02
Field distribution is uniform, and field strength distribution is uneven caused by preventing conducting rod 23 from installing hour offset.In addition, bushing shell for transformer operational process
In vibration be easy to cause conducting rod 23 deviate and cause field strength to distort, locating piece 24 further prevents conducting rod 23 because running
Field strength distorts caused by vibration offset in journey, improves the long-term running stability of product.
Further, as shown in figure 4, the material of locating piece 24 is hard insulation, so that locating piece 24 has more preferably
Supporting role.In the present embodiment, the material of locating piece 24 is polytetrafluoroethylene (PTFE), and in other embodiments, locating piece 24 is also
It can be other materials, be not construed as limiting herein.
Further, as shown in figure 4, the outer wall of conducting rod 23 is equipped with the accommodation groove 231 being caught in for locating piece 24, locating piece
24 one end are connected to the inner wall of accommodation groove 231, the other end is connected to 21 inner wall of insulation tube.By the way that locating piece 24 is caught in accommodation groove
It in 231, is then arranged in insulation tube 21 together with conducting rod 23, locating piece 24 can be installed, peace simple with structure
Fill convenient advantage.In other embodiments, locating piece 24 can also be installed on by way of being fixed on 23 outer wall of conducting rod
On conducting rod 23, it is not construed as limiting herein.
Further, as shown in figure 4, locating piece 24, which is located at the outer side of accommodation groove 231, is provided with several oil-through-holes 241, lead to oil
Hole 241 passes through for the oil inside insulation tube 21, so that the oil circulation in insulation tube 21 is more abundant, prevents office in insulation tube 21
Portion's temperature is excessively high.
Further, as shown in figure 4, accommodation groove 231 is opened up around the outer wall of conducting rod 23, locating piece 24 be it is arc-shaped,
And arc-shaped circular arc is major arc.Conducting rod 23 can be preferably supported to be greater than the locating piece 24 of semicircle, prevents conducting rod
23 deviate to all directions.When installation is greater than the locating piece 24 of semicircle, locating piece 24 need to be stuck in accommodation groove 231 with biggish power
It is interior.In other embodiments, locating piece 24 can also be semicircle, and two semicircular locating pieces 24 are opposite to be stuck in accommodation groove
In 231, installation is more convenient, and plays preferable supporting role to conducting rod 23, is not construed as limiting herein.
In a specific implement scene, when conducting rod 23 is installed, locating piece 24 is stuck in the appearance of conducting rod 23 first
It sets in slot 231, then conducting rod 23 and locating piece 24 is caught in together in insulation tube 21, conducting rod 23 remains during installation
Its center for being located at insulation tube 21 is concentric cylinder electric field inside sheath assembly 02, and field distribution is uniform, prevents conducting rod
Field strength distribution is uneven caused by 23 installation hour offsets.Locating piece 24 further prevents conducting rod 23 to lead in operation because of vibration
The offset of cause, and then prevent field strength caused by deviating because of conducting rod 23 from distorting, improve the long-term running stability of product.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of an embodiment of bushing shell for transformer of the invention.
Further embodiment of this invention provides a kind of bushing shell for transformer, and bushing shell for transformer includes sheath assembly 03, casing group
Part 03 is any one above-mentioned sheath assembly.As shown in figure 5, being arranged with outside the insulation tube of sheath assembly 03 outer at lower flange
Wall sprays semi-conductive layer, and semi-conductive layer plays the role of being homogenized electric field, and semi-conductive layer is electrically connected with lower flange, may make semiconductive
Layer and laxative remedy your beautiful writings equipotential, prevent insulation tube and laxative remedy your beautiful writings from generating shelf depreciation because mucilage binding is bad or there are gap.Set
Elastic component is equipped in the insulation tube of tube assembly 03 and the mucilage binding slot of lower flange, elastic component is electrically connected lower flange and semi-conductive layer, protects
It has demonstrate,proved and has kept stablizing electrical connection between lower flange and semi-conductive layer, semi-conductive layer and laxative remedy your beautiful writings equipotential have been further ensured that, into one
Step homogenizing field distribution.The gap of encapsulated material is not filled between the lower flange and insulation tube of sheath assembly 03 filled with oil resistant
Resin, resistance to oleoresin are filled with gap herein, are further homogenized field distribution, prevent shelf depreciation.Sheath assembly 03 also wraps
Conducting rod and locating piece are included, conducting rod is arranged in insulation tube, and locating piece one end is connected to conducting rod outer wall, the other end is connected to
Insulate inside pipe wall, and then limits the radial deflection of conducting rod.Due to the restriction effect of locating piece, conducting rod is protected always during installation
Its center for being located at insulation tube is held, i.e. the central axis of the central axis of conducting rod and insulation tube is located at same straight line, casing group
It is concentric cylinder electric field inside part 03, field distribution is uniform, and field strength distribution is uneven caused by preventing conducting rod from installing hour offset.
In addition, the vibration in bushing shell for transformer operational process is easy to cause conducting rod to deviate and generates field strength distortion, locating piece is further
Field strength distorts caused by preventing conducting rod from deviating because of the vibration in operational process, improves the long-term running stability of product.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure made by description of the invention and accompanying drawing content or principle of equal effects transformation, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of sheath assembly for being homogenized electric field characterized by comprising
Insulation tube；
Composite sheath is arranged and is fixed on outside the insulation tube, and the end of the insulation tube extends to outside the composite sheath；
Lower flange is arranged and is fixed on outside the insulation tube and the composite sheath；
The insulative pipe sleeve is equipped with the outer wall at the lower flange and is equipped with semi-conductive layer, the semi-conductive layer and lower flange electricity
Connection.
2. sheath assembly as described in claim 1, which is characterized in that in the outer wall of the insulation tube and/or the lower flange
Side wall is equipped with mucilage binding slot, and elastic component is equipped in the mucilage binding slot, and the elastic component is electrically connected the lower flange and the semiconductive
Layer.
3. sheath assembly as described in claim 1, which is characterized in that further include:
Conducting rod is arranged in the insulation tube；
Locating piece, described locating piece one end is connected to the conducting rod outer wall, the other end is connected to the insulation inside pipe wall, in turn
Limit the radial deflection of the conducting rod.
4. sheath assembly as claimed in claim 3, which is characterized in that the outer wall of the conducting rod, which is equipped with, supplies the locating piece card
The accommodation groove entered, the locating piece are connected to the accommodation groove inner wall.
5. sheath assembly as claimed in claim 4, which is characterized in that the accommodation groove is opened around the outer wall of the conducting rod
If the locating piece is arc-shaped, and the arc-shaped circular arc is major arc.
6. sheath assembly as claimed in claim 4, which is characterized in that the locating piece is located at the outer side of the accommodation groove and is provided with
Several oil-through-holes.
7. sheath assembly as claimed in claim 3, which is characterized in that the material of the locating piece is hard insulation.
8. sheath assembly as described in claim 1, which is characterized in that the lower flange is fixed with the insulation tube mucilage binding, institute
The gap that encapsulated material is not filled by between lower flange and the insulation tube is stated filled with resistance to oleoresin.
9. sheath assembly as described in claim 1, which is characterized in that the material of the composite sheath includes high-temperature vulcanized silicon rubber
Glue.
10. a kind of bushing shell for transformer, which is characterized in that the bushing shell for transformer is using of any of claims 1-9
Sheath assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251866.2A CN109859943A (en) | 2019-03-29 | 2019-03-29 | A kind of sheath assembly and bushing shell for transformer being homogenized electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910251866.2A CN109859943A (en) | 2019-03-29 | 2019-03-29 | A kind of sheath assembly and bushing shell for transformer being homogenized electric field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109859943A true CN109859943A (en) | 2019-06-07 |
Family
ID=66902700
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910251866.2A Pending CN109859943A (en) | 2019-03-29 | 2019-03-29 | A kind of sheath assembly and bushing shell for transformer being homogenized electric field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109859943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110211805A (en) * | 2019-06-27 | 2019-09-06 | 国网河北省电力有限公司沧州供电分公司 | Bushing shell for transformer oiling tool |
| CN115458259A (en) * | 2022-10-09 | 2022-12-09 | 西安西电避雷器有限责任公司 | Lightning arrester and manufacturing method thereof |
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| CN110211805A (en) * | 2019-06-27 | 2019-09-06 | 国网河北省电力有限公司沧州供电分公司 | Bushing shell for transformer oiling tool |
| CN110211805B (en) * | 2019-06-27 | 2022-03-01 | 国网河北省电力有限公司沧州供电分公司 | Oiling tool for transformer bushing |
| CN115458259A (en) * | 2022-10-09 | 2022-12-09 | 西安西电避雷器有限责任公司 | Lightning arrester and manufacturing method thereof |
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