CN102360798A - Dry transformer with low voltage winding with low voltage between layers - Google Patents
Dry transformer with low voltage winding with low voltage between layers Download PDFInfo
- Publication number
- CN102360798A CN102360798A CN2011102136712A CN201110213671A CN102360798A CN 102360798 A CN102360798 A CN 102360798A CN 2011102136712 A CN2011102136712 A CN 2011102136712A CN 201110213671 A CN201110213671 A CN 201110213671A CN 102360798 A CN102360798 A CN 102360798A
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- Prior art keywords
- low voltage
- low
- winding
- voltage
- iron core
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- 238000004804 winding Methods 0.000 title claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011889 copper foil Substances 0.000 claims abstract description 11
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 4
- 238000005097 cold rolling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to a dry transformer with a low voltage winding with low voltage between layers. The dry transformer comprises an iron core, a high voltage winding and the low voltage winding; the high and low voltage windings are sleeved on the iron core; the iron core is formed by laminating cold rolled grain oriented silicon steel sheets; the low voltage winding is formed by winding copper foils; and a plurality of insulation support strips are arranged between the copper coils. The dry transformer solves the problems of high voltage between layers and low insulativity of the low voltage winding in the prior art, high insulativity, and low voltage between layers and brow leakage of the low voltage winding are achieved, and a cooling air channel is formed to contribute to heat dissipation of the transformer, so the transformer is not damaged easily after running for a long time.
Description
Technical field
The present invention relates to a kind of transformer, the low dry-type transformer of voltage between especially a kind of low voltage winding layer.
Background technology
At present, between known dry-type transformer winding the general air that adopts as dielectric, but along with the improving constantly of transformer voltage grade, the dielectric strength between Transformer Winding also needs corresponding enhancing the, especially low pressure winding.And present employing paper tinsel all is that Copper Foil closely is wound on the iron core around the low pressure winding of mode, and the space between the Copper Foil is very little, thereby causes between low voltage winding layer voltage higher, and brow leakage is big, and causes the excessive damage transformer of caloric value easily.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the low dry-type transformer of voltage between a kind of low voltage winding layer, through between every layer of Copper Foil, being provided with a plurality of insulating stays, formed cooling airway, voltage is low between low voltage winding layer, and brow leakage is little.
To achieve these goals; The technical scheme that the present invention adopted is: the low dry-type transformer of voltage between a kind of low voltage winding layer; Comprise iron core, high pressure winding and low pressure winding; The high and low pressure winding all is enclosed within on the iron core, and said low pressure winding is formed by the Copper Foil coiling, is provided with a plurality of insulating stays between every layer of Copper Foil.
The low dry-type transformer of voltage between aforesaid a kind of low voltage winding layer, it is characterized in that: said iron core is cascaded by cold rolling grain oriented silicon steel sheet.
The low dry-type transformer of voltage between aforesaid a kind of low voltage winding layer is characterized in that: the quantity of said insulating stay is four.
The low dry-type transformer of voltage between aforesaid a kind of low voltage winding layer is characterized in that: the material of said insulating stay (3) is an organic siliconresin.
The invention has the beneficial effects as follows: through between every layer of Copper Foil, being provided with a plurality of insulating stays, formed cooling airway, good heat dissipation effect has strengthened the dielectric strength between winding, has realized that voltage is low between low voltage winding layer, the purpose that brow leakage is little.
Description of drawings
Fig. 1 is a dry-type transformer low pressure winding sectional view.
Embodiment
To combine Figure of description below, the present invention will be further described.
As shown in Figure 1, the low dry-type transformer of voltage between a kind of low voltage winding layer comprises iron core, high pressure winding and low pressure winding; The high and low pressure winding all is enclosed within on the iron core, and said iron core is cascaded by cold rolling grain oriented silicon steel sheet 1, and said low pressure winding is formed by Copper Foil 2 coilings; Be provided with four insulating stays of processing by silicone resin material 3 between every layer of Copper Foil 2; Form cooling airway, thereby make the radiating effect of transformer better, voltage is low between low voltage winding layer; Brow leakage is little, has reached better insulation effect.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection range by appending claims and equivalent circle thereof.
Claims (4)
1. the low dry-type transformer of voltage between a low voltage winding layer; Comprise iron core, high pressure winding and low pressure winding; High pressure winding, low pressure winding all are enclosed within on the iron core; And high pressure winding and low pressure winding are corresponding to be provided with, and it is characterized in that: said low pressure winding is formed by Copper Foil (2) coiling, is provided with a plurality of insulating stays (3) between every layer of Copper Foil (2).
2. the low dry-type transformer of voltage between a kind of low voltage winding layer according to claim 1 is characterized in that: said iron core is cascaded by cold rolling grain oriented silicon steel sheet (1).
3. the low dry-type transformer of voltage between a kind of low voltage winding layer according to claim 1 is characterized in that: the quantity of said insulating stay (3) is four.
4. the low dry-type transformer of voltage between a kind of low voltage winding layer according to claim 1 is characterized in that: the material of said insulating stay (3) is an organic siliconresin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102136712A CN102360798A (en) | 2011-07-28 | 2011-07-28 | Dry transformer with low voltage winding with low voltage between layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102136712A CN102360798A (en) | 2011-07-28 | 2011-07-28 | Dry transformer with low voltage winding with low voltage between layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360798A true CN102360798A (en) | 2012-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102136712A Pending CN102360798A (en) | 2011-07-28 | 2011-07-28 | Dry transformer with low voltage winding with low voltage between layers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360798A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610372A (en) * | 2012-03-13 | 2012-07-25 | 广德因达电炉成套设备有限公司 | High-capacity reactor composed of multiple circles of mutually insulated copper sheets and manufacture method of high-capacity reactor |
| CN105869874A (en) * | 2016-06-06 | 2016-08-17 | 柳州市海格电气有限公司 | Manufacturing method for 10-kV dry-type transformer |
| CN113593894A (en) * | 2021-06-07 | 2021-11-02 | 广州市一变电气设备有限公司 | Dry-type transformer foil coil winding method and dry-type transformer foil coil |
| WO2024103459A1 (en) * | 2022-11-16 | 2024-05-23 | 吴江变压器有限公司 | Dry-type distribution transformer having three-stage stepped core |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2653655Y (en) * | 2003-09-08 | 2004-11-03 | 海南金盘特种变压器厂 | Rectangular iron core/coil DVD dry transformer |
| CN2755748Y (en) * | 2004-12-08 | 2006-02-01 | 许继集团有限公司 | Open ventilating dry transformer with retardant paper paint-immersed insulation |
| CN101388280A (en) * | 2008-06-30 | 2009-03-18 | 山东鲁能泰山电力设备有限公司 | Multi-stage dry voltage regulating transformer |
| CN202134349U (en) * | 2011-07-28 | 2012-02-01 | 苏州鼎能电力设备有限公司 | Dry-type transformer with low voltage between layers of low voltage winding |
-
2011
- 2011-07-28 CN CN2011102136712A patent/CN102360798A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2653655Y (en) * | 2003-09-08 | 2004-11-03 | 海南金盘特种变压器厂 | Rectangular iron core/coil DVD dry transformer |
| CN2755748Y (en) * | 2004-12-08 | 2006-02-01 | 许继集团有限公司 | Open ventilating dry transformer with retardant paper paint-immersed insulation |
| CN101388280A (en) * | 2008-06-30 | 2009-03-18 | 山东鲁能泰山电力设备有限公司 | Multi-stage dry voltage regulating transformer |
| CN202134349U (en) * | 2011-07-28 | 2012-02-01 | 苏州鼎能电力设备有限公司 | Dry-type transformer with low voltage between layers of low voltage winding |
Non-Patent Citations (1)
| Title |
|---|
| Ｊ．Ｈ．ＤAVIS等: "Ｃ级绝缘变压器用的硅有机绝缘材料", 《变压器》, no. 02, 8 February 1966 (1966-02-08) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610372A (en) * | 2012-03-13 | 2012-07-25 | 广德因达电炉成套设备有限公司 | High-capacity reactor composed of multiple circles of mutually insulated copper sheets and manufacture method of high-capacity reactor |
| CN102610372B (en) * | 2012-03-13 | 2015-10-21 | 广德因达电炉成套设备有限公司 | The high-capacity reactor be made up of multi-turn mutually insulated copper sheet and manufacture method |
| CN105869874A (en) * | 2016-06-06 | 2016-08-17 | 柳州市海格电气有限公司 | Manufacturing method for 10-kV dry-type transformer |
| CN113593894A (en) * | 2021-06-07 | 2021-11-02 | 广州市一变电气设备有限公司 | Dry-type transformer foil coil winding method and dry-type transformer foil coil |
| WO2024103459A1 (en) * | 2022-11-16 | 2024-05-23 | 吴江变压器有限公司 | Dry-type distribution transformer having three-stage stepped core |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120222 |