CN105529119B - Insulation paper used for high-overload transformer - Google Patents
Insulation paper used for high-overload transformer Download PDFInfo
- Publication number
- CN105529119B CN105529119B CN201610049176.5A CN201610049176A CN105529119B CN 105529119 B CN105529119 B CN 105529119B CN 201610049176 A CN201610049176 A CN 201610049176A CN 105529119 B CN105529119 B CN 105529119B
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- China
- Prior art keywords
- insulating paper
- epoxy
- layer insulating
- high overload
- paper according
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Classifications
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- 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
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
- H01B3/421—Polyesters
-
- 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
Abstract
The invention discloses an insulation paper used for a high-overload transformer. The insulation paper comprises base paper and a cementing layer and is characterized in that the base paper consists of high-purity insulation wood pulp fibers, and the cementing layer consists of modified epoxy resin. The insulation paper used for the high-overload transformer has good thermostability, mechanical performance and electrical performance.
Description
Technical field
The disclosure relates generally to insulating paper field, more particularly to high overload layer insulating paper.
Background technology
High overload oil-filled transformer is set up the project by net rural power portion of state, the Novel electric depressor researched and developed by Chinese DianKeYuan,
Wherein in terms of insulant, high density point gummed paper was originally adopted, when transformer load is significantly increased, transformator easily occurred
Overload scaling loss, and have the situation of low voltage.
Later, have research institution using the NOMEX paper of Dupont production as layer insulation, because material surface it is smooth；
Manufacture difficulty is big, and production cost is high, and the later stage reclaims difficult and is unfavorable for environmental protection and is gradually eliminated.
Through the retrieval to prior art, a kind of 200810045837.2 diamond dotted glue composite dielectric paper of application number, which is special
Levying is：By laminated polyester film, fine with polyester in the electric insulation of laminated polyester film upper and lower surface with F levels adhering polyurethane adhesive
Dimension nonwoven fabric layer and the modified epoxy being coated in form diamond checks in each electric insulation nonwoven polyester fabric layer surface
Composition.The preparation method of the diamond dotted glue composite dielectric paper, it is compound exhausted including preparing 3-layer composite material and preparing Pedicellus et Pericarpium Trapae lattice glue
The steps such as edge paper.Using the present invention, properties of product are excellent, simple production process, can save the manufacture of oil-immersed power transformer
Cost, improve quality；The invention product is particularly well-suited to oil-immersed power transformer Foil winding coil and makees layer insulation, turn-to-turn
Insulation and transformer make the insulant of turn-to-turn insulation；Application number 201210508791.X discloses insulating paper technical field, bag
Include by Modified polyester chips biaxial tension into mylar, one layer of form diamond checks glue-line is coated with the mylar, it is described
Form diamond checks glue-line is epoxide-resin glue；As mylar has excellent mechanical performance, machinability and has good electricity
Insulating properties；Epoxide-resin glue has excellent adhesive strength simultaneously, and dielectric properties are good, and good stability of the dimension, hardness are high, flexible
Property is good.But mylar thermostability and breakdown voltage are poor, its service life is affected.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, a kind of high overload layer insulating paper of present invention offer, bag
Base paper and upper glue layer are included, the base paper is made up of high-purity insulation pulps fiber, and the upper glue layer is made up of modified epoxy.
Preferably, the high-purity insulation pulps fiber Jing amines stabilizers are processed and are obtained.
Preferably, the addition of the amines stabilizer is 0.5%-5%.
Preferably, the amines stabilizer is selected from tripolycyanamide, cyanamid dimerization, one or more in polyacrylamide.
Preferably, the modified epoxy includes following components：Novolac epoxy resin, flexible-epoxy, polyglycols
2-glycidyl ether resin, dicyandiamide, accelerator.
Preferably, also include DADPS in the modified epoxy.
Preferably, the component proportion of the modified epoxy is made up of following components according to weight portion：
Novolac epoxy resin 50-70,
Flexible-epoxy 5-20,
Polyglycols 2-glycidyl ether resin 5-20,
Dicyandiamide 5-20,
DADPS 2-10,
Accelerator 2-8.
Preferably, the preferred ingredient proportioning of the modified epoxy is made up of following components according to weight portion：
Novolac epoxy resin 60,
Flexible-epoxy 10,
Polyglycols 2-glycidyl ether resin 10,
Dicyandiamide 10,
DADPS 5,
Accelerator 5.
Preferably, the shape of the upper glue layer can be rhombus, circle, square.
Preferably, the upper glue layer is preferably shaped to rhombus.
The present invention can realize following beneficial effect, and high overload layer insulating paper prepared by the present invention has preferable
Heat stability, mechanical performance and electric property.
Specific embodiment
The application is described in further detail with reference to embodiment.It is understood that tool described herein
Body embodiment is used only for explaining related invention, rather than the restriction to the invention.It should be noted that in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be mutually combined.
Embodiment 1
The present embodiment provides the composition and preparation method of high overload layer insulating paper
The base paper of high overload layer insulating paper is passed through the tripolycyanamide of addition 3% by high-purity insulation pulps fiber
Reason is prepared from, and upper glue layer is by 50 parts of novolac epoxy resin, 5 parts of flexible-epoxy, polyglycols 2-glycidyl ether resin 5
Part, 5 parts of dicyandiamide, 2 parts of DADPS, 2 parts of compositions of accelerator.
Embodiment 2
The base paper of high overload layer insulating paper is passed through the cyanamid dimerization of addition 2% by high-purity insulation pulps fiber
Reason is prepared from, and upper glue layer is by 60 parts of novolac epoxy resin, 10 parts of flexible-epoxy, polyglycols 2-glycidyl ether resin 10
Part, 10 parts of dicyandiamide, 8 parts of DADPS, 6 parts of compositions of accelerator.
Embodiment 3
The base paper of high overload layer insulating paper is passed through the polyacrylamide of addition 5% by high-purity insulation pulps fiber
Process is prepared from, and upper glue layer is by 70 parts of novolac epoxy resin, 20 parts of flexible-epoxy, polyglycols 2-glycidyl ether resin
20 parts, 20 parts of dicyandiamide, 10 parts of DADPS, 8 parts of compositions of accelerator.
Embodiment 4
The base paper of high overload layer insulating paper by high-purity insulation pulps fiber through addition 1% tripolycyanamide and
1% polyacrylamide is processed and is formed, and by 60 parts of novolac epoxy resin, 10 parts of flexible-epoxy, polyglycols two contract upper glue layer
10 parts of water glycerol ether resin, 10 parts of dicyandiamide, 10 parts of DADPS, 8 parts of compositions of accelerator.
Implementation result：
With base material thickness 0.18mm, as a example by 10 μm of upper glue layer thickness, following effect can be realized by embodiment of embodiment 1-4
Really.
1 implementation result of table
From table 1 it follows that high overload layer insulating paper prepared by embodiment of the present invention 1-4 can reach preferably
Electric property and mechanical strength, in adhesion strength, the adhesion strength of insulating paper prepared by embodiment 2 can be at 100 DEG C
454kpa is reached, breakdown voltage can reach 10.4kv in oil, with preferable insulation effect, this is because steady using amine
After determining agent process paper pulp, the base paper of preparation can have preferable insulating properties, and carry out, after gluing, making using modified epoxy
Used time upper glue layer starts fusing in coil dry run in uniform temperature, produces adhesive attraction, with temperature rising again
Start solidification, make the neighboring layers of Transformer Winding reliably be bonded into a fixed unit, the bonding strength of epoxy resin is
Due to insulating paper coating be in point-like, it is ensured that oil immersion and insulant in gas discharge, be effectively prevented from corona and
Office puts, so as to ensure that the safe and reliable of insulation system.
Above description is only the preferred embodiment and the explanation to institute's application technology principle of the application.People in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case of without departing from the inventive concept, is carried out by above-mentioned technical characteristic or its equivalent feature
Combination in any and other technical schemes for being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (8)
1. high overload layer insulating paper, including base paper and upper glue layer, it is characterised in that the base paper is by high-purity insulation wood
Pulp fibres are constituted, and the upper glue layer is made up of modified epoxy, and the modified epoxy includes following components：Epoxy novolac
Resin, flexible-epoxy, polyglycols 2-glycidyl ether resin, dicyandiamide, accelerator, DADPS.
2. high overload layer insulating paper according to claim 1, it is characterised in that the high-purity insulation pulps are fine
Dimension Jing amines stabilizers before base paper is made are processed and are obtained.
3. high overload layer insulating paper according to claim 2, it is characterised in that the addition of the amines stabilizer
Measure as 0.5%-5%.
4. high overload layer insulating paper according to claim 2, it is characterised in that the amines stabilizer is selected from three
Poly cyanamid, cyanamid dimerization, one or more in polyacrylamide.
5. high overload layer insulating paper according to claim 1, it is characterised in that the group of the modified epoxy
Distribution ratio is made up of following components according to weight portion：
Novolac epoxy resin 50-70,
Flexible-epoxy 5-20,
Polyglycols 2-glycidyl ether resin 5-20,
Dicyandiamide 5-20,
DADPS 2-10,
Accelerator 2-8.
6. high overload layer insulating paper according to claim 5, it is characterised in that the modified epoxy it is excellent
Component proportion is selected to be made up of following components according to weight portion：
Novolac epoxy resin 60,
Flexible-epoxy 10,
Polyglycols 2-glycidyl ether resin 10,
Dicyandiamide 10,
DADPS 5,
Accelerator 5.
7. high overload layer insulating paper according to claim 1, it is characterised in that the upper glue layer is shaped as Pedicellus et Pericarpium Trapae
Shape, circle, square.
8. high overload layer insulating paper according to claim 7, it is characterised in that the upper glue layer is shaped as Pedicellus et Pericarpium Trapae
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049176.5A CN105529119B (en) | 2016-01-25 | 2016-01-25 | Insulation paper used for high-overload transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049176.5A CN105529119B (en) | 2016-01-25 | 2016-01-25 | Insulation paper used for high-overload transformer |
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| Publication Number | Publication Date |
|---|---|
| CN105529119A CN105529119A (en) | 2016-04-27 |
| CN105529119B true CN105529119B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610049176.5A Active CN105529119B (en) | 2016-01-25 | 2016-01-25 | Insulation paper used for high-overload transformer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988842B (en) * | 2016-10-27 | 2020-07-03 | 中国制浆造纸研究院有限公司 | Extra-high voltage low dielectric loss insulating material and production method thereof |
| CN107815068A (en) * | 2017-10-20 | 2018-03-20 | 南通日芝电力材料有限公司 | Amorphous transformer coil in-seam frame material, modified heat resistant resin and method |
| CN109024070A (en) * | 2018-09-20 | 2018-12-18 | 何治伟 | A kind of preparation method of thermostabilization insulating paper |
| CN112277392B (en) * | 2020-10-26 | 2022-05-10 | 无锡市辰华包装有限公司 | Preparation method of antibacterial anti-static corrugated board |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1936719A1 (en) * | 1968-07-19 | 1970-02-19 | Japan Mica Ind Co Ltd | Mica paper |
| CN101424060A (en) * | 2008-08-13 | 2009-05-06 | 黄顺国 | Diamond dotted glue composite dielectric paper and preparation method thereof |
| CN102982923A (en) * | 2012-12-04 | 2013-03-20 | 江苏亚威变压器有限公司 | Novel insulating paper applied to transformer |
| CN103072352A (en) * | 2013-01-13 | 2013-05-01 | 株洲时代电气绝缘有限责任公司 | Coating type composite material for dry type transformer and preparation method thereof |
| CN103642413A (en) * | 2013-10-17 | 2014-03-19 | 昆山韩保胶带科技有限公司 | High-temperature-resistant insulating paper adhesive tape |
| CN103895308A (en) * | 2012-12-25 | 2014-07-02 | 南通日芝电力材料有限公司 | Insulating paper for transformer iron core |
| CN204102649U (en) * | 2014-09-16 | 2015-01-14 | 绵阳东兴绝缘制品有限责任公司 | A kind of water chestnut lattice glue-dispensing insulation paper adopting mylar |
-
2016
- 2016-01-25 CN CN201610049176.5A patent/CN105529119B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1936719A1 (en) * | 1968-07-19 | 1970-02-19 | Japan Mica Ind Co Ltd | Mica paper |
| CN101424060A (en) * | 2008-08-13 | 2009-05-06 | 黄顺国 | Diamond dotted glue composite dielectric paper and preparation method thereof |
| CN102982923A (en) * | 2012-12-04 | 2013-03-20 | 江苏亚威变压器有限公司 | Novel insulating paper applied to transformer |
| CN103895308A (en) * | 2012-12-25 | 2014-07-02 | 南通日芝电力材料有限公司 | Insulating paper for transformer iron core |
| CN103072352A (en) * | 2013-01-13 | 2013-05-01 | 株洲时代电气绝缘有限责任公司 | Coating type composite material for dry type transformer and preparation method thereof |
| CN103642413A (en) * | 2013-10-17 | 2014-03-19 | 昆山韩保胶带科技有限公司 | High-temperature-resistant insulating paper adhesive tape |
| CN204102649U (en) * | 2014-09-16 | 2015-01-14 | 绵阳东兴绝缘制品有限责任公司 | A kind of water chestnut lattice glue-dispensing insulation paper adopting mylar |
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| CN105529119A (en) | 2016-04-27 |
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