CN107808763A - Voltage transformer primary winding high-tension shielding apparatus and preparation method thereof - Google Patents
Voltage transformer primary winding high-tension shielding apparatus and preparation method thereof Download PDFInfo
- Publication number
- CN107808763A CN107808763A CN201711222421.9A CN201711222421A CN107808763A CN 107808763 A CN107808763 A CN 107808763A CN 201711222421 A CN201711222421 A CN 201711222421A CN 107808763 A CN107808763 A CN 107808763A
- Authority
- CN
- China
- Prior art keywords
- paper
- extrusion coating
- primary winding
- capacitor
- voltage transformer
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
-
- 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
- H01F27/288—Shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
Abstract
The present invention relates to High-Voltage Electrical Appliances coil manufacture technology field, more particularly to a kind of voltage transformer primary winding high-tension shielding apparatus and preparation method thereof.Described device includes insulation flexible support, semiconductive crimped paper and overhang insulation support bar, and overhang insulation support bar is inlayed at the both ends of wherein insulation flexible support, and the outside of insulation flexible support is coated with semiconductive crimped paper.This invention ensures that the interlayer electric-field intensity in coil can be uniformly distributed, protective effect is implemented to insulation；After the processing of the method, the local discharging level of voltage transformer product is greatly improved simultaneously.
Description
Technical field
The present invention relates to High-Voltage Electrical Appliances coil manufacture technology field, more particularly to a kind of voltage transformer primary winding high pressure
Screening arrangement and preparation method thereof.
Background technology
At present, the single semiconductive crimped paper generally used is made most in transformer industry voltage transformer primary winding
Outer layer winding method, has the knowhow of more than 50 years in China, with the continuous development of technological equipment industry, coil manufacturing technology
Also constantly it is being gradually improved, compared to more ripe alone semiconductive crimped paper form, alone semiconductive crimped paper still has its technique
In place of imperfection, i.e. coil field strength distribution is very uneven, be mainly manifested in electric-field intensity excessively concentrate, inside and outside field strength difference very
Greatly, surface electric field intensity height etc..Therefore, it is badly in need of a kind of more perfect more advanced primary winding manufacture craft, further lifts transformer
Designing and manufacturing level.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of voltage transformer primary winding high-tension shielding apparatus and
Its preparation method, to solve the problems, such as existing voltage transformer primary winding external electric field skewness.
To achieve these goals, the present invention uses following technical scheme：
A kind of voltage transformer primary winding high-tension shielding apparatus, including insulation flexible support, semiconductive crimped paper and end
Inlay overhang insulation support bar, the outside of the insulation flexible support in the both ends of portion's insulating supporting bar, wherein insulation flexible support
It is coated with semiconductive crimped paper.
The insulation flexible support uses capacitor extrusion coating paper.
The overhang insulation support bar uses silicon rubber bar, and the silicon rubber bar is embedded in the two of the capacitor extrusion coating paper
End.
The semiconductive crimped paper is arranged at the side of the capacitor extrusion coating paper and both ends are around after the silicon rubber bar
It is connected with the opposite side of the capacitor extrusion coating paper.
The both ends of the semiconductive crimped paper pass through two-sided tape and another side bonds of the capacitor extrusion coating paper.
A kind of preparation method of voltage transformer primary winding high-tension shielding apparatus, this method include following steps：
1) capacitor extrusion coating paper, silicon rubber bar, two-sided tape and semiconductive crimped paper are cut by size；
2) silicon rubber bar is inlayed at the both ends of capacitor extrusion coating paper；
3) semiconductive crimped paper is coated in the outside of capacitor extrusion coating paper, forms screening arrangement；
4) screening arrangement made is arranged on to the outermost layer of every one-level of voltage transformer primary winding.
7th, according to the method for claim 6, it is characterised in that in step 3), the semiconductive crimped paper is arranged at
The side and both ends of the capacitor extrusion coating paper pass through two-sided tape and the semiconductive crimped paper after bypassing the silicon rubber bar
Another side bonds.
In step 4), the screening arrangement is Nian Jie with primary winding by double faced adhesive tape.
The invention has the advantages that and advantage：
1st, device of the invention and preparation method thereof is easy to operate, production efficiency is high：The technique is in voltage transformer one
A kind of mature technology innovation on the basis of secondary coil coiling, i.e., after the completion of primary winding is per one-level coiling, using PMP capacitors
Extrusion coating paper, silicon rubber bar, two-sided tape and semiconductive crimped paper are made high-tension shielding and installed and fixed, the operation of integrated artistic scheme
Simply, operating efficiency can be improved.
2nd, apparatus of the present invention and preparation method thereof make coil electric-field intensity distribution uniformly, product partial discharge quantity it is small：By line
It all plus shielding outside the every one-level of circle, ensure that coil electric-field intensity distribution is more uniform, interlayer high voltage electric field shielded more effectively,
Make coil outer field strength more uniform, so as to reach the small purpose of product partial discharge quantity.
Brief description of the drawings
Fig. 1 is the structural representation of high-tension shielding apparatus of the present invention；
Fig. 2 is the mounting structure schematic diagram of high-tension shielding apparatus of the present invention.
In figure：1 is capacitor extrusion coating paper；2 be silicon rubber bar；3 be semiconductive crimped paper；4 be two-sided tape；5 is once
Winding；6 be high-tension shielding.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
As shown in figure 1, a kind of voltage transformer primary winding high-tension shielding apparatus provided by the invention, including insulation flexible
Overhang insulation support bar is inlayed at the both ends of support, semiconductive crimped paper 3 and overhang insulation support bar, wherein insulation flexible support,
The outside of insulation flexible support is coated with semiconductive crimped paper 3.
In one embodiment of the invention, insulation flexible support uses capacitor extrusion coating paper 1, and overhang insulation support bar uses silicon
Rubber strip 2, silicon rubber bar 2 are embedded in the both ends of capacitor extrusion coating paper 1.Semiconductive crimped paper 3 is arranged at capacitor extrusion coating paper 1
Side and both ends are connected after bypassing silicon rubber bar 2 with the opposite side of capacitor extrusion coating paper 1.
Further, the both ends of semiconductive crimped paper 3 pass through two-sided tape 4 and another side bonds of capacitor extrusion coating paper 1.
Capacitor extrusion coating paper 1 is PMP capacitor extrusion coating papers.
A kind of preparation method of voltage transformer primary winding high-tension shielding apparatus, this method include following steps：
1) capacitor extrusion coating paper 1, silicon rubber bar 2, two-sided tape 4 and semiconductive crimped paper 3 are cut by size；
2) silicon rubber bar 2 is inlayed at the both ends of capacitor extrusion coating paper 1；
3) in the outside of capacitor extrusion coating paper 1 cladding semiconductive crimped paper 3, screening arrangement is formed；
4) screening arrangement made is arranged on to the outermost layer of every one-level of voltage transformer primary winding.
Further, in step 3), semiconductive crimped paper 3 is arranged at the side of capacitor extrusion coating paper 1 and both ends doubling,
Around another side bonds of two-sided tape 4 and semiconductive crimped paper 3 are passed through after silicon rubber bar 2, semiconductive crimped paper 3 into one is fixed
Generally primary winding high-tension shielding.
Further, in step 4), screening arrangement is Nian Jie with primary winding by double faced adhesive tape.
In summary, high-tension shielding apparatus of the present invention is the master operation that transformer manufactures process, is product cast
Coil production process before mould, the manufacturing process of high-tension shielding apparatus are followed successively by shielding fabrication and installation fixation etc..First will
Capacitor extrusion coating paper 1, silicon rubber bar, two-sided tape and semiconductive crimped paper are cut by size；Again by the both sides of capacitor extrusion coating paper 1
After inlaying silicon rubber bar 2, whole semiconductive crimped paper 3 wraps up capacitor extrusion coating paper 1 wherein, and it is electric capacity to be finally fabricated to centre
Inlay the high-tension shielding 6 of silicon rubber bar outsourcing semiconductive crimped paper in device extrusion coating paper both sides.By this screen while primary winding coiling
Cover and carry out, then install it between two parties in coil around one layer of two-sided tape after complete for every grade, wind with one circuit the first docking, further around extremely
Next stage, complete primary winding is formed to afterbody by that analogy, as shown in Figure 2.
Primary winding high-tension shielding apparatus of the present invention and preparation method thereof is to follow transformer production principle and relevant criterion
The novel process scheme of design, takes into full account electromagnetic induction principle, and special high-tension shielding effect is utilized in coil winding, enters one
Step reaches that coil external electronic field is more uniform, and product partial discharge quantity is small, makes coil outer field strength distribution more uniform, so as to
Reach the small purpose of product partial discharge quantity, so that it is guaranteed that product can safe operation, be transformer batch micro operations and quality control
System provides favourable guarantee.
Special high-tension shielding preparation method is added to coil winding per one-level by the present invention by primary winding winding process
Outside.The screening arrangement and preparation method thereof ensure that the interlayer electric-field intensity in coil can be uniformly distributed, and insulation is implemented
Protective effect；After the processing of the method, the local discharging level of voltage transformer product is greatly improved simultaneously.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within made any modification, equivalent substitution and improvements, extension etc., be all contained in protection scope of the present invention
It is interior.
Claims (8)
1. a kind of voltage transformer primary winding high-tension shielding apparatus, it is characterised in that including insulation flexible support, semiconductive wrinkle
Inlay overhang insulation support bar, the insulation flexible in the both ends of line paper (3) and overhang insulation support bar, wherein insulation flexible support
Semiconductive crimped paper (3) is coated with the outside of support.
2. voltage transformer primary winding high-tension shielding apparatus according to claim 1, it is characterised in that the insulation is soft
Property support use capacitor extrusion coating paper (1).
3. voltage transformer primary winding high-tension shielding apparatus according to claim 2, it is characterised in that the end is exhausted
Edge support bar uses silicon rubber bar (2), and the silicon rubber bar (2) is embedded in the both ends of the capacitor extrusion coating paper (1).
4. voltage transformer primary winding high-tension shielding apparatus according to claim 3, it is characterised in that the semiconductive
Crimped paper (3) be arranged at the side of the capacitor extrusion coating paper (1) and both ends around the silicon rubber bar (2) afterwards with the electricity
The opposite side connection of container extrusion coating paper (1).
5. voltage transformer primary winding high-tension shielding apparatus according to claim 4, it is characterised in that the semiconductive
The both ends of crimped paper (3) pass through two-sided tape (4) and another side bonds of the capacitor extrusion coating paper (1).
6. a kind of preparation method of voltage transformer primary winding high-tension shielding apparatus according to claim 5, its feature
It is, this method includes following steps：
1) capacitor extrusion coating paper (1), silicon rubber bar (2), two-sided tape (4) and semiconductive crimped paper (3) are cut by size；
2) silicon rubber bar (2) is inlayed at the both ends of capacitor extrusion coating paper (1)；
3) in the outside of capacitor extrusion coating paper (1) cladding semiconductive crimped paper (3), screening arrangement is formed；
4) screening arrangement made is arranged on to the outermost layer of every one-level of voltage transformer primary winding.
7. according to the method for claim 6, it is characterised in that in step 3), the semiconductive crimped paper (3) is arranged at institute
State after the side of capacitor extrusion coating paper (1) and both ends bypass the silicon rubber bar (2) and partly led with described by two-sided tape (4)
Another side bonds of electric crimped paper (3).
8. according to the method for claim 6, it is characterised in that in step 4), the screening arrangement passes through double faced adhesive tape and one
Secondary coil is bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222421.9A CN107808763A (en) | 2017-11-29 | 2017-11-29 | Voltage transformer primary winding high-tension shielding apparatus and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222421.9A CN107808763A (en) | 2017-11-29 | 2017-11-29 | Voltage transformer primary winding high-tension shielding apparatus and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107808763A true CN107808763A (en) | 2018-03-16 |
Family
ID=61582076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222421.9A Withdrawn CN107808763A (en) | 2017-11-29 | 2017-11-29 | Voltage transformer primary winding high-tension shielding apparatus and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107808763A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444377A (en) * | 2019-09-09 | 2019-11-12 | 大连北方互感器集团有限公司 | A kind of voltage transformer primary coil high-tension shielding apparatus and preparation method thereof |
| CN113838654A (en) * | 2021-09-24 | 2021-12-24 | 大连第二互感器集团有限公司 | High-voltage end screen manufacturing method and high-voltage end screen |
| CN115631945A (en) * | 2022-10-26 | 2023-01-20 | 江苏靖江互感器股份有限公司 | Method for manufacturing primary winding of voltage transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252216A (en) * | 1989-03-27 | 1990-10-11 | Hitachi Cable Ltd | Transformer with optical fiber |
| CN202058572U (en) * | 2011-05-11 | 2011-11-30 | 浙江南极互感器有限公司 | Small local discharge outdoor dry-type voltage transformer |
| CN102360877A (en) * | 2011-07-06 | 2012-02-22 | 浙江南极互感器有限公司 | Dry capacitive electromagnetic type voltage transformer |
| CN104144600A (en) * | 2013-08-19 | 2014-11-12 | 国家电网公司 | Shielding ring, shielding structure and poured voltage transformer |
| CN205248084U (en) * | 2015-12-08 | 2016-05-18 | 中国西电电气股份有限公司 | Built -in current transformer of oil -immersed transformer uses ground connection screen structure |
-
2017
- 2017-11-29 CN CN201711222421.9A patent/CN107808763A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02252216A (en) * | 1989-03-27 | 1990-10-11 | Hitachi Cable Ltd | Transformer with optical fiber |
| CN202058572U (en) * | 2011-05-11 | 2011-11-30 | 浙江南极互感器有限公司 | Small local discharge outdoor dry-type voltage transformer |
| CN102360877A (en) * | 2011-07-06 | 2012-02-22 | 浙江南极互感器有限公司 | Dry capacitive electromagnetic type voltage transformer |
| CN104144600A (en) * | 2013-08-19 | 2014-11-12 | 国家电网公司 | Shielding ring, shielding structure and poured voltage transformer |
| CN205248084U (en) * | 2015-12-08 | 2016-05-18 | 中国西电电气股份有限公司 | Built -in current transformer of oil -immersed transformer uses ground connection screen structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444377A (en) * | 2019-09-09 | 2019-11-12 | 大连北方互感器集团有限公司 | A kind of voltage transformer primary coil high-tension shielding apparatus and preparation method thereof |
| CN110444377B (en) * | 2019-09-09 | 2024-04-23 | 大连北方互感器集团有限公司 | Primary coil high-voltage shielding device of voltage transformer and manufacturing method thereof |
| CN113838654A (en) * | 2021-09-24 | 2021-12-24 | 大连第二互感器集团有限公司 | High-voltage end screen manufacturing method and high-voltage end screen |
| CN115631945A (en) * | 2022-10-26 | 2023-01-20 | 江苏靖江互感器股份有限公司 | Method for manufacturing primary winding of voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107808763A (en) | Voltage transformer primary winding high-tension shielding apparatus and preparation method thereof | |
| CN102074332B (en) | Common mode choke and manufacturing method thereof | |
| CN109767897A (en) | Voltage transformer coil first winding and its winding method | |
| CN210245282U (en) | Transformer | |
| CN102176372A (en) | Cylindrical dry type high-voltage capacitor core | |
| CN203982986U (en) | A kind of sandwich winding transformer | |
| CN106683855A (en) | High-voltage line outlet structure of electric reactor at voltage of less than or equal to 500kV | |
| CN108335872A (en) | A kind of voltage transformer coil first winding and its winding method | |
| CN210110490U (en) | Transformer foil coil end insulator capable of increasing winding speed | |
| CN203056721U (en) | Rich-resin mold-pressed thinned optimized structure of 15.75kV generator stator | |
| CN203260458U (en) | Electrostatic shielding device for dry-type isolation transformer of more than 6kV | |
| CN205582707U (en) | Can reduce partial discharge's single -phase voltage mutual -inductor | |
| CN203931761U (en) | A kind of high frequency transformer that removes Y electric capacity | |
| CN204290545U (en) | A kind of novel high pressure INCREASEDSAFETY stator winding corona preventing construction | |
| CN202422944U (en) | Transformer | |
| CN202917305U (en) | Winding lead wire of high-frequency transformer | |
| CN207183054U (en) | EI type transformers | |
| CN208706439U (en) | A kind of inner screen continuous winding using fractional turns integer winding | |
| CN103915166A (en) | Anti-ultraviolet insulating dual-shielding reinforced control cable | |
| CN206098109U (en) | Transposition line of reactor winding coil | |
| CN104917320A (en) | 6KV high-voltage motor shaped coil and processing method thereof. | |
| CN110444377A (en) | A kind of voltage transformer primary coil high-tension shielding apparatus and preparation method thereof | |
| CN102682999A (en) | Multilayer foil type coil winding machine of harmonic-eliminating compensation power transformation device | |
| CN109166728A (en) | The insulating process of first winding and secondary winding, structure and voltage transformer | |
| CN203490963U (en) | Special shaped single-surface self-adhesive enameled composite wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180316 |