CN105469958B - A kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer - Google Patents
A kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer Download PDFInfo
- Publication number
- CN105469958B CN105469958B CN201610001471.3A CN201610001471A CN105469958B CN 105469958 B CN105469958 B CN 105469958B CN 201610001471 A CN201610001471 A CN 201610001471A CN 105469958 B CN105469958 B CN 105469958B
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- capacitance
- voltage
- insulating cylinder
- thin
- aluminium pipe
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
-
- H—ELECTRICITY
- H01—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
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/28—Capacitor type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
This application discloses a kind of high current glue to soak fiber dry-type capacitance type bushing shell for transformer, and the bushing shell for transformer includes metallic conductor, thin-wall aluminium pipe, capacitance-voltage-distributing type insulating cylinder, silicon rubber umbrella skirt and metal flange；Thin-wall aluminium pipe is set on the outside of metallic conductor, cooling oil duct is provided between thin-wall aluminium pipe and metallic conductor, thin-wall aluminium pipe is connected with metallic conductor equipotential；Capacitance-voltage-distributing type insulation jacket casing is wrapped on the outside of thin-wall aluminium pipe；Some layer capacitance screens are provided with capacitance-voltage-distributing type insulating cylinder；Silicon rubber umbrella skirt is set on the outside of capacitance-voltage-distributing type insulating cylinder, and metal flange is fixedly connected with capacitance-voltage-distributing type insulating cylinder.The application uses capacitance partial pressure mode, is evenly distributed to according to the principle of " waiting electric capacity, wait voltage ", high voltage on each capacitor during design, the voltage that each capacitor undertakes is identical, ensure that the uniform of radial electric field intensity；Again due to the effect of the equidistant ladder difference of capacitance plate, axial electric field strength is also uniform.
Description
Technical field
The present invention relates to a kind of high current glue to soak fiber dry-type capacitance type bushing shell for transformer.
Background technology
At present, widely used strong current transformer sleeve pipe is mainly assembled by metallic conductor, insulator and metal flange
Form, used between insulator and electric conductor filled with 30mm thickness transformer oil as insulation and cooling.This structure transformer sleeve pipe is radially
It is uneven with axial electric field strength, the technological requirement height to filling transformer oil, easily produce shelf depreciation, and overall weight
Weight.
Therefore, a kind of in light weight, uniform bushing shell for transformer of the radial and axial electric-field intensity of bushing shell for transformer of design turns into
The technical problem of those skilled in the art's urgent need to resolve.
The content of the invention
For problem present in background technology, it is an object of the invention to provide a kind of high current glue leaching fiber dry type electricity
Appearance type bushing shell for transformer, the bushing shell for transformer use capacitance partial pressure mode, according to the principle of " waiting electric capacity, wait voltage " during design,
High voltage is evenly distributed on each capacitor, and the voltage that each capacitor undertakes is identical, ensure that radial electric field intensity
Uniformly；Again due to the effect of the equidistant ladder difference of capacitance plate, axial electric field strength is also uniform.
The purpose of the present invention is achieved through the following technical solutions：
A kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer, the bushing shell for transformer include metallic conductor,
Thin-wall aluminium pipe, capacitance-voltage-distributing type insulating cylinder, silicon rubber umbrella skirt and metal flange；Wherein, the thin-wall aluminium pipe is set in the gold
Belong on the outside of electric conductor, cooling oil duct, the electricity such as thin-wall aluminium pipe and metallic conductor are provided between thin-wall aluminium pipe and metallic conductor
Position is connected；The capacitance-voltage-distributing type insulating cylinder is set on the outside of the thin-wall aluminium pipe；If it is provided with capacitance-voltage-distributing type insulating cylinder
Dried layer capacitance plate；The silicon rubber umbrella skirt is set on the outside of the capacitance-voltage-distributing type insulating cylinder, the metal flange and electric capacity point
Pressure type insulating cylinder is fixedly connected.
Further, if the length of capacitance plate described in dried layer progressively shortens, shape from inside to outside according to the equal principle of capacitance
Poor into equidistant ladder, outermost layer capacitance plate passes through lead and the ejector being arranged on metal flange.
Further, the capacitance-voltage-distributing type insulating cylinder is made up of glass fibre and epoxy resin.
Further, the capacitance plate is made up of low resistance semi-conductive tape.
Further, cooling oil duct thickness is provided between the thin-wall aluminium pipe and the metallic conductor.
Further, the upper end junction of the capacitance-voltage-distributing type insulating cylinder and metallic conductor is provided with sealing ring, electric capacity
The lower end junction of partial pressure type insulating cylinder and metallic conductor is provided with spring attachment.
Further, the spring attachment is fixedly installed on the lower end of the metallic conductor, the spring compression dress
Put and be made up of several little springs and spring base.
Further, the sealing ring is made up of oil-resistant acrylonitrile-butadirubber rubber.
The present invention has following positive technique effect：
The bushing shell for transformer of the application uses capacitance partial pressure mode, high according to the principle of " waiting electric capacity, wait voltage " during design
Voltage is evenly distributed on each capacitor, and the voltage that each capacitor undertakes is identical, ensure that the equal of radial electric field intensity
It is even；Again due to the effect of the equidistant ladder difference of capacitance plate, axial electric field strength is also uniform.
Brief description of the drawings
Fig. 1 is the semi-section structural map of the bushing shell for transformer of the present invention；
Fig. 2 is the semi-section structural map of the capacitance-voltage-distributing type insulating cylinder of the present invention；
Fig. 3 is the circuit diagram of the equivalent capacitance of the present invention.
Embodiment
Below, refer to the attached drawing, the utility model is more fully illustrated, shown shown in the drawings of of the present utility model
Example property embodiment.However, the utility model can be presented as a variety of multi-forms, it is not construed as being confined to what is described here
Exemplary embodiment.And these embodiments are to provide, so that the utility model is fully and completely, and will be of the present utility model
Scope is fully communicated to one of ordinary skill in the art.
For ease of explanation, space relative terms such as " on " " under " " left side " " right sides " can be used herein, for saying
The element or feature shown in bright figure is relative to another element or the relation of feature.It should be understood that except in figure
Outside the orientation shown, spatial terminology is intended to include the different azimuth of device in use or operation.If for example, in figure
Device is squeezed, be stated as positioned at other elements or feature " under " element will be located into other elements or feature " on ".Cause
This, exemplary term " under " both upper and lower orientation can be included.Device can be positioned otherwise（It is rotated by 90 ° or is located at
Other orientation）, can correspondingly be explained used herein of the relative explanation in space.
As Figure 1-3, high current glue of the invention leaching fiber dry-type capacitance type bushing shell for transformer includes metallic conductor
1st, thin-wall aluminium pipe 3, capacitance-voltage-distributing type insulating cylinder 4, insulation full skirt 7 and metal flange 9；Wherein, thin-wall aluminium pipe 3 is set in metal and led
The electric outside of body 1, is provided with cooling oil duct 6, thin-wall aluminium pipe 3 and metallic conductor 1 etc. between thin-wall aluminium pipe 3 and metallic conductor 1
Current potential is connected；4 sets of capacitance-voltage-distributing type insulating cylinder is wrapped in the outside of thin-wall aluminium pipe 3；It is provided with capacitance-voltage-distributing type insulating cylinder 4 some
Layer capacitance screen 5；Insulation full skirt 7 is set in the outside of capacitance-voltage-distributing type insulating cylinder 4, and metal flange 9 is solid with capacitance-voltage-distributing type insulating cylinder 4
Fixed connection.
In addition, the length of some layer capacitance screens 5 of the application progressively contracts from inside to outside according to the equal principle of capacitance
Short, the equidistant ladder of formation is poor, and outermost layer capacitance plate is connected by lead 11 with the ejector 8 being arranged on metal flange 9；Press
According to the principle of " waiting electric capacity, wait voltage ", high voltage is evenly distributed on each capacitor, the voltage phase that each capacitor undertakes
Together, it ensure that the uniform of radial electric field intensity；Again due to the effect of the equidistant ladder difference of capacitance plate, axial electric field strength is also uniform
's.
Preferably, the capacitance-voltage-distributing type insulating cylinder 4 of the application is made up of glass fibre and epoxy resin, and its advantage is insulation
Performance is good, high mechanical strength；And capacitance plate 5 is made up of low resistance semi-conductive tape；Set between thin-wall aluminium pipe 3 and metallic conductor 1
Cooling oil duct 6 is put.
Preferably, the capacitance-voltage-distributing type insulating cylinder 4 of the application and the upper end junction of metallic conductor 1 are provided with sealing ring
2, sealing ring 2 is made up of oil-resistant acrylonitrile-butadirubber rubber；The lower end junction of capacitance-voltage-distributing type insulating cylinder 4 and metallic conductor 1 is provided with
Spring attachment 10.Spring attachment 10 is fixedly installed on the lower end of metallic conductor 1, and spring attachment 10 is by some
Individual little spring and spring base are formed；By setting spring attachment 10 ensure that, sealing ring 2 has certain decrement, will not seepage
Transformer oil.
The capacitance-voltage-distributing type insulating cylinder 4 of the application is to be entangled in the outside of thin-wall aluminium pipe 3 using glass fibre infiltration epoxy resin
It is made；And some layer capacitance screens 5 are made of the outermost by adding low resistance semiconductor band inside capacitance-voltage-distributing type insulating cylinder 4
Layer capacitance screen is coupled with a lead 11 draws, then winds 5mm or so protective layers, the material of the protective layer be similarly glass fibre and
Epoxy resin；The capacitance-voltage-distributing type insulating cylinder 4 wound is put into curing oven, is processed into given size shape after solidification from the flat
Shape.
It is described above simply to illustrate that the utility model, it is understood that the utility model be not limited to the above implementation
Example, meets the various variants of the utility model thought within the scope of protection of the utility model.
Claims (3)
1. a kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer, it is characterised in that the bushing shell for transformer includes gold
Belong to electric conductor, thin-wall aluminium pipe, capacitance-voltage-distributing type insulating cylinder, insulation full skirt and metal flange；Wherein, the thin-wall aluminium pipe is set in
On the outside of the metallic conductor, cooling oil duct, thin-wall aluminium pipe and metallic conduction are provided between thin-wall aluminium pipe and metallic conductor
Body equipotential is connected；The capacitance-voltage-distributing type insulating cylinder is enclosed on the outside of the thin-wall aluminium pipe；Set in capacitance-voltage-distributing type insulating cylinder
There are some layer capacitance screens；The insulation full skirt is set on the outside of the capacitance-voltage-distributing type insulating cylinder, the metal flange and electric capacity
Partial pressure type insulating cylinder is fixedly connected；The capacitance-voltage-distributing type insulating cylinder is made up of glass fibre and epoxy resin；The insulated umbrella
Skirt is made up of silicon rubber, is bonded in outside capacitance-voltage-distributing type insulating cylinder.
2. high current glue according to claim 1 soaks fiber dry-type capacitance type bushing shell for transformer, it is characterised in that if dried layer
The length of the capacitance plate progressively shortens, the equidistant ladder of formation is poor, outermost layer electricity from inside to outside according to the equal principle of capacitance
Rong Ping is connected by lead with the ejector being arranged on metal flange.
3. high current glue according to claim 1 soaks fiber dry-type capacitance type bushing shell for transformer, it is characterised in that the electricity
Rong Ping is made up of low resistance semi-conductive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001471.3A CN105469958B (en) | 2016-01-05 | 2016-01-05 | A kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001471.3A CN105469958B (en) | 2016-01-05 | 2016-01-05 | A kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105469958A CN105469958A (en) | 2016-04-06 |
| CN105469958B true CN105469958B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610001471.3A Active CN105469958B (en) | 2016-01-05 | 2016-01-05 | A kind of high current glue soaks fiber dry-type capacitance type bushing shell for transformer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109872848A (en) * | 2017-12-01 | 2019-06-11 | 江苏神马电力股份有限公司 | Composite insulator and its manufacturing method, composite bushing |
| CN112420290B (en) * | 2020-10-12 | 2022-09-16 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Integrated pure-dry high-voltage bushing with mounting flange insulation structure and manufacturing method thereof |
| CN112630696B (en) * | 2020-12-07 | 2022-09-09 | 广西电网有限责任公司电力科学研究院 | Capacitive screen coupling simulation testing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419250A (en) * | 2003-01-07 | 2003-05-21 | 孙闻峰 | Dry type high-voltage capacitor core and making method thereof |
| CN201130591Y (en) * | 2007-12-20 | 2008-10-08 | 南京智达电气有限公司 | Oil paper condenser type low-voltage great current transformer tube |
| CN101814347A (en) * | 2009-02-19 | 2010-08-25 | 日本碍子株式会社 | Insulating sleeve for oil filling |
| CN103093906A (en) * | 2013-02-07 | 2013-05-08 | 北京国电四维电力技术有限公司 | High voltage casing pipe |
| CN202940110U (en) * | 2012-10-29 | 2013-05-15 | 姚文秋 | Multi-terminal coil out casing pipe of magnetic reactor |
| CN204332499U (en) * | 2014-12-03 | 2015-05-13 | 常州市拓源电缆成套有限公司 | 400-40500 lies prostrate condenser type compound insulated bus structure |
| CN205303142U (en) * | 2016-01-05 | 2016-06-08 | 北京中联科创高压电器有限公司 | Heavy current glue soaks fibre dry -type electric capacity type transformer bushing |
-
2016
- 2016-01-05 CN CN201610001471.3A patent/CN105469958B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1419250A (en) * | 2003-01-07 | 2003-05-21 | 孙闻峰 | Dry type high-voltage capacitor core and making method thereof |
| CN201130591Y (en) * | 2007-12-20 | 2008-10-08 | 南京智达电气有限公司 | Oil paper condenser type low-voltage great current transformer tube |
| CN101814347A (en) * | 2009-02-19 | 2010-08-25 | 日本碍子株式会社 | Insulating sleeve for oil filling |
| CN202940110U (en) * | 2012-10-29 | 2013-05-15 | 姚文秋 | Multi-terminal coil out casing pipe of magnetic reactor |
| CN103093906A (en) * | 2013-02-07 | 2013-05-08 | 北京国电四维电力技术有限公司 | High voltage casing pipe |
| CN204332499U (en) * | 2014-12-03 | 2015-05-13 | 常州市拓源电缆成套有限公司 | 400-40500 lies prostrate condenser type compound insulated bus structure |
| CN205303142U (en) * | 2016-01-05 | 2016-06-08 | 北京中联科创高压电器有限公司 | Heavy current glue soaks fibre dry -type electric capacity type transformer bushing |
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| Publication number | Publication date |
|---|---|
| CN105469958A (en) | 2016-04-06 |
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