CN103895308A - Insulating paper for transformer iron core - Google Patents
Insulating paper for transformer iron core Download PDFInfo
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- CN103895308A CN103895308A CN201210570060.8A CN201210570060A CN103895308A CN 103895308 A CN103895308 A CN 103895308A CN 201210570060 A CN201210570060 A CN 201210570060A CN 103895308 A CN103895308 A CN 103895308A
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- insulating paper
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Abstract
The invention discloses insulating paper for a transformer iron core, and relates to the technical field of transformers, wherein a heat resistance high temperature insulating paper layer is adhered to an EMP film layer through a heat resistance adhesive layer. The use method comprises that: (1) when the iron core is cylindrical, appropriate insulating paper is selected according to the size of the iron core, and is directly wrapped on the outer surface of the iron core, and adhesion is performed through an adhesive; and (2) when the iron core is a quadrangular prism, appropriate insulating paper is selected according to the size of the iron core, the corresponding creases are obtained on the insulating paper through a folding manner according to the sizes of various side surfaces of the iron core, the plural of the creases form a rectangle on the middle portion of the insulating paper, the middle portion of the insulating paper is cut along the two diagonals of the rectangle, the insulating paper is folded into the shape of the iron core along the creases, the obtained insulating paper sleeves on the outer surface of the iron core in a connection manner, and adhesion is performed through an adhesive. According to the present invention, the noise of the transformer can be reduced, the volume of the iron core can be reduced during production, the cost can be saved, and characteristics of energy saving, environmental protection and service life prolonging are provided.
Description
Technical field:
The present invention relates to transformer technology field, be specifically related to a kind of insulating paper for transformer core.
Background technology:
Transformer is to utilize the principle of electromagnetic induction to change the device of alternating voltage, and main member is primary coil, secondary coil and iron core (magnetic core).Major function has: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing (magnetic saturation transformer) etc.Can be divided into by purposes: distribution transformer, power transformer, full-sealed transformer, combined transformer, dry-type transformer, oil-filled transformer, single-phase transformer, furnace transformer, rectifier transformer etc.
As everyone knows, actual transformer is always worked under exchange status, and power attenuation not only, on the resistance of coil, is also created in the iron core under alternating current magnetization.Conventionally the power attenuation in iron core " iron loss ", iron loss is caused by two reasons, and one is " magnetic hystersis loss ", and one is " eddy-current loss ", can cause like this shorten the service life of iron core, and transformer core will reach required power, all iron core is done very large, can produce in use very large noise, and easily produce static, energy consumption is large, also causes the volume of transformer large simultaneously, has increased manufacturing cost.
Summary of the invention:
The object of this invention is to provide a kind of insulating paper for transformer core, it can reduce the noise of transformer, can reduce the volume of iron core when production, has saved cost, and effect of simultaneously concrete energy-conserving and environment-protective, has extended service life.
In order to solve the existing problem of background technology, the present invention adopts following technical scheme: it comprises heat-resisting high-temperature insulation ply of paper 1, heat resistance adhesive phase 2, EMP thin layer 3, and heat-resisting high-temperature insulation ply of paper 1 is bonding by heat resistance adhesive phase 2 and EMP thin layer 3.
Its using method is: (one), when iron core is while being cylindrical, by according to the suitable insulating paper of the size Selection of iron core, is directly wrapped in insulating paper the outer surface of iron core, and passes through polymer adhesive; (2), in the time that iron core is quadrangular, according to the suitable insulating paper of the size Selection of iron core, then on insulating paper, fold corresponding folding line 4 according to the size of each side of iron core, several folding line 4 has formed a rectangle 5 at insulating paper middle part, two diagonal along rectangle 5 are cut off insulating paper middle part, along folding line, insulating paper is converted into the shape of iron core, then insulating paper is socketed in to the appearance of iron core, and bonding by bonding agent.
The present invention can reduce the noise of transformer, can reduce the volume of iron core when production, has saved cost, and effect of simultaneously concrete energy-conserving and environment-protective, has extended service life.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present invention,
Fig. 2 is use structural representation of the present invention.
The specific embodiment:
The specific embodiment one: referring to Fig. 1-Fig. 2, this specific embodiment adopts following technical scheme: it comprises heat-resisting high-temperature insulation ply of paper 1, heat resistance adhesive phase 2, EMP thin layer 3, and heat-resisting high-temperature insulation ply of paper 1 is bonding by heat resistance adhesive phase 2 and EMP thin layer 3.
After the polyacrylamide of the dicyandiamide that described heat-resisting high-temperature insulation ply of paper 1 is 20%-40%, three chlorocyanamides of 30%-40%, 20%-50% mixes, the fiber after cyaniding, its heat endurance is high, and temperature is up to 150 degree.
Described EMP thin layer 3 surfaces, through eliminating Electrostatic Treatment, have mechanical strength high, ageing-resistant.
Its using method is: (one), when iron core is while being cylindrical, by according to the suitable insulating paper of the size Selection of iron core, is directly wrapped in insulating paper the outer surface of iron core, and passes through polymer adhesive; (2), in the time that iron core is quadrangular, according to the suitable insulating paper of the size Selection of iron core, then on insulating paper, fold corresponding folding line 4 according to the size of each side of iron core, several folding line 4 has formed a rectangle 5 at insulating paper middle part, two diagonal along rectangle 5 are cut off insulating paper middle part, along folding line, insulating paper is converted into the shape of iron core, then insulating paper is socketed in to the appearance of iron core, and bonding by bonding agent.
This specific embodiment is applicable to amorphous transformer, can reduce the noise of transformer, can reduce the volume of iron core when production, has saved cost, and effect of simultaneously concrete energy-conserving and environment-protective, has extended service life.
The specific embodiment two: this specific embodiment is that with the difference of the specific embodiment one described EMP thin layer 3 replaces with EMP polyethers layer.Other composition and annexation are identical with the specific embodiment one.
It is high that the EMP polyethers layer of this specific embodiment has intensity, good toughness, oil resistant and ageing-resistant.
Claims (5)
1. for the insulating paper of transformer core, it is characterized in that it comprises heat-resisting high-temperature insulation ply of paper (1), heat resistance adhesive phase (2), EMP thin layer (3), heat-resisting high-temperature insulation ply of paper (1) is bonding by heat resistance adhesive phase (2) and EMP thin layer (3).
2. for the insulating paper of transformer core, the using method that it is characterized in that it is: (one), when iron core is while being cylindrical, by according to the suitable insulating paper of the size Selection of iron core, insulating paper is directly wrapped in to the outer surface of iron core, and passes through polymer adhesive; (2), in the time that iron core is quadrangular, according to the suitable insulating paper of the size Selection of iron core, then on insulating paper, fold corresponding folding line (4) according to the size of each side of iron core, several folding line (4) has formed a rectangle (5) at insulating paper middle part, two diagonal along rectangle (5) are cut off insulating paper middle part, along folding line, insulating paper is converted into the shape of iron core, again insulating paper is socketed in to the appearance of iron core, and bonding by bonding agent.
3. the insulating paper for transformer core according to claim 1, after the polyacrylamide of the dicyandiamide that heat-resisting high-temperature insulation ply of paper (1) described in it is characterized in that is 20%-40%, three chlorocyanamides of 30%-40%, 20%-50% mixes, fiber after cyaniding, its heat endurance is high, and temperature is up to 150 degree.
4. the insulating paper for transformer core according to claim 1, is characterized in that described EMP thin layer (3) replaces with EMP polyethers layer.
5. the insulating paper for transformer core according to claim 1, is characterized in that described EMP thin layer (3) surface is through eliminating Electrostatic Treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570060.8A CN103895308A (en) | 2012-12-25 | 2012-12-25 | Insulating paper for transformer iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570060.8A CN103895308A (en) | 2012-12-25 | 2012-12-25 | Insulating paper for transformer iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103895308A true CN103895308A (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210570060.8A Pending CN103895308A (en) | 2012-12-25 | 2012-12-25 | Insulating paper for transformer iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103895308A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529119A (en) * | 2016-01-25 | 2016-04-27 | 南通日芝电力材料有限公司 | Insulation paper used for high-overload transformer |
| CN105714608A (en) * | 2016-01-25 | 2016-06-29 | 南通日芝电力材料有限公司 | Method for preparing insulating paper for high-overload transformers |
| CN105887548A (en) * | 2014-11-15 | 2016-08-24 | 玖龙浆纸（乐山）有限公司 | One-step forming process method for heat-resistant paper |
| CN110370737A (en) * | 2019-05-30 | 2019-10-25 | 南通日芝电力材料有限公司 | A kind of absorption insulating paper certainly of for transformer iron core |
| CN112635160A (en) * | 2020-12-14 | 2021-04-09 | 鲁变电工股份有限公司 | Oil-immersed distribution transformer with high sudden short circuit resistance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399034A (en) * | 2001-07-25 | 2003-02-26 | 中国科学院成都有机化学研究所 | High-temperature aging resisting assistant for transformer insulating paper and its making process and application |
| CN1885449A (en) * | 2005-06-22 | 2006-12-27 | 株式会社日立产机系统 | Amorphous transformer and insulated paper manufacturing machine |
| JP2008119999A (en) * | 2006-11-14 | 2008-05-29 | Nitto Shinko Kk | Laminated sheet |
| CN101424060A (en) * | 2008-08-13 | 2009-05-06 | 黄顺国 | Diamond dotted glue composite dielectric paper and preparation method thereof |
| CN201585235U (en) * | 2009-07-10 | 2010-09-15 | 南通中菱绝缘材料有限公司 | Aluminum foil shield insulating paper |
| CN202058540U (en) * | 2011-05-04 | 2011-11-30 | 魏德曼电力绝缘科技（嘉兴）有限公司 | Cylinder for high voltage power transformer insulation |
-
2012
- 2012-12-25 CN CN201210570060.8A patent/CN103895308A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1399034A (en) * | 2001-07-25 | 2003-02-26 | 中国科学院成都有机化学研究所 | High-temperature aging resisting assistant for transformer insulating paper and its making process and application |
| CN1885449A (en) * | 2005-06-22 | 2006-12-27 | 株式会社日立产机系统 | Amorphous transformer and insulated paper manufacturing machine |
| JP2008119999A (en) * | 2006-11-14 | 2008-05-29 | Nitto Shinko Kk | Laminated sheet |
| CN101424060A (en) * | 2008-08-13 | 2009-05-06 | 黄顺国 | Diamond dotted glue composite dielectric paper and preparation method thereof |
| CN201585235U (en) * | 2009-07-10 | 2010-09-15 | 南通中菱绝缘材料有限公司 | Aluminum foil shield insulating paper |
| CN202058540U (en) * | 2011-05-04 | 2011-11-30 | 魏德曼电力绝缘科技（嘉兴）有限公司 | Cylinder for high voltage power transformer insulation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887548A (en) * | 2014-11-15 | 2016-08-24 | 玖龙浆纸（乐山）有限公司 | One-step forming process method for heat-resistant paper |
| CN105529119A (en) * | 2016-01-25 | 2016-04-27 | 南通日芝电力材料有限公司 | Insulation paper used for high-overload transformer |
| CN105714608A (en) * | 2016-01-25 | 2016-06-29 | 南通日芝电力材料有限公司 | Method for preparing insulating paper for high-overload transformers |
| CN105529119B (en) * | 2016-01-25 | 2017-04-26 | 南通日芝电力材料有限公司 | Insulation paper used for high-overload transformer |
| CN110370737A (en) * | 2019-05-30 | 2019-10-25 | 南通日芝电力材料有限公司 | A kind of absorption insulating paper certainly of for transformer iron core |
| CN112635160A (en) * | 2020-12-14 | 2021-04-09 | 鲁变电工股份有限公司 | Oil-immersed distribution transformer with high sudden short circuit resistance |
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Application publication date: 20140702 |
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| RJ01 | Rejection of invention patent application after publication |