CN2914273Y - Moistureproof enveloped dry-type transformer - Google Patents
Moistureproof enveloped dry-type transformer Download PDFInfo
- Publication number
- CN2914273Y CN2914273Y CN 200620019606 CN200620019606U CN2914273Y CN 2914273 Y CN2914273 Y CN 2914273Y CN 200620019606 CN200620019606 CN 200620019606 CN 200620019606 U CN200620019606 U CN 200620019606U CN 2914273 Y CN2914273 Y CN 2914273Y
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- low
- coil
- voltage coil
- insulation
- dry
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Abstract
A moisture-proof encapsulation dry-type transformer, the inner diameter and the outer diameter of a high-voltage coil and a low-voltage coil, the inner diameter and the outer diameter of each internal ventilation air intake of the high-voltage coil and the low-voltage coil all are equipped with insulation cylinders with thicknesses of 0.25 to 2.5mm, the end parts of the high-voltage coil and the low-voltage coil are insulated encapsulation. The utility model has excellent moisture-proof performance and anti-filthy capability, the product has strong ability to adapt to the environment, thereby applying to the severe environment such as high humidity, severe contamination, high saline-alkali, and high acid corrosion through the effective encapsulation to the coil; the effective encapsulation of insulation can make the coil be completely isolated with the air of outside world, thus achieving good moisture-proof effect; the product has high insulation intensity and mechanical strength, low loss, small noise, strong overload capability, good refractory properties, strong capacity for thermal shock, small size and light weight, low cost, as well as simple process.
Description
Technical field
The utility model belongs to a kind of lock-in type dry-type transformer with good humidity resistance.
Background technology
At present, dry-type transformer mainly contains poured with epoxy resin type dry-type transformer, open-ventilating type dry-type transformer and twines the lock-in type dry-type transformer.Twine the lock-in type dry-type transformer and have good humidity resistance and anti-filthy ability, but heat-sinking capability is relatively poor.For increasing the heat-sinking capability of coil, these products are provided with axial heat radiation air flue more, but cause the humidity resistance of coil to reduce easily.The many interior outsides because of the air flue that axially dispels the heat of its reason are not provided with certain thickness insulating cylinder simultaneously; Perhaps overhang insulation does not adopt modes such as insulating end ring, insulating varnish, insulating resin or electric insulating sealant to seal, and makes coil make moist easily or gathers the conduction dust and cause that electric insulation lost efficacy, and the moisture effect of product is not good.
Summary of the invention
Deficiency at above-mentioned prior art existence, the utility model provides a kind of moistureproof lock-in type dry-type transformer, it comprises iron core, low-voltage coil, high-tension coil, coil forms with the copper or the aluminium conductor coiling that have turn insulation, separate by layer insulation between layer and the layer, the low-voltage coil concentric locking collar is connected on the iron core, high-tension coil is socketed in the low-voltage coil outside, high, be provided with insulating cylinder between the low-voltage coil, the inner separately ventilating air passage that can be provided with axial heat radiation of low-voltage coil and high-tension coil, it is characterized in that: height, the internal diameter of low-voltage coil, external diameter and height, low-voltage coil is the internal diameter of inner ventilating air passage separately, external diameter is equipped with the insulating cylinder that thickness is 0.25-2.5mm, height, seal for insulation the end of low-voltage coil.
The insulation of above-mentioned high and low pressure end winding is sealed and is adopted insulating end ring, insulating varnish, resin or fluid sealant.
Above-mentioned dry-type transformer, the layer insulation of high and low pressure coil are the material with F class F insulation, H class F insulation, N level or C class F insulation temperature characterisitic.
Not segmentation of coiled vertically of above-mentioned high-tension coil or subsection cylindrical formula, hop count is an even number during segmentation.
Above-mentioned high and low pressure coil inside respectively is provided with 0-3 axial ventilation air flue.
The utlity model has good humidity resistance and anti-filthy ability, the product adaptation environment capacity is strong, by to effectively the sealing of coil, enables to be applied to adverse circumstances such as high humidity, pollution severity, high salinity and high acid corrosion; All peripheries by at coil comprise the axial ventilation radiating surface, and certain thickness insulating cylinder is set; The overhang insulation outside is by insulating end ring, insulating varnish, resin or fluid sealant sealing space, reaching the turn insulation that coil-conductor is comprised conductor self, with outside air isolated fully seal effect, to reach good moisture effect; Product dielectric strength and mechanical strength height, loss is low, and noise is little, and the strong fire resistance of capability of overload is good, and it is strong to bear the thermal shock ability, and volume is little in light weight, and cost is low, and technology is simple.
Description of drawings
Fig. 1 is a vertical section structure schematic diagram of the present utility model.
Fig. 2 is the continuous winding structural representation of two-stage structure.
Embodiment:
As Fig. 1-2, unshakable in one's determination 1 adopts the high-quality silicon steel sheet stack to form, and low-voltage coil 2 can adopt copper or aluminium conductor 6 coilings to form.The inside of low-voltage coil 2 is provided with an axial heat dissipation ventilation air flue 4, to increase the heat-sinking capability of coil.
High-tension coil 3 adopts copper or aluminium conductor 6, turns to several cylindrical section formula coils vertically, and two interlayers are provided with layer insulation and separate.High-tension coil 3 is provided with an axial heat dissipation ventilation air flue 5, to increase the heat-sinking capability of coil.The internal diameter of low-voltage coil 2 is provided with insulating cylinder 11, low pressure external insulation tube 14, low pressure overhang insulation 9, low pressure end encapsulant 7 in the low pressure, the coil periphery is carried out protection against the tide seal.Low-pressure shaft insulating cylinder 12, low-pressure shaft in air flue carry out protection against the tide to the coil on 13 pairs of axial heat dissipation ventilation air flues of air flue external insulation tube, 4 both sides and seal.
The internal diameter of high-tension coil 3 carries out protection against the tide to the coil periphery and seals by insulating cylinder 16, high pressure external insulation tube 19, high pressure overhang insulation 10, high pressure end encapsulant 8 in the high pressure.High-pressure shaft insulating cylinder 17, high-pressure shaft in air flue carry out protection against the tide to the coil on 18 pairs of axial heat dissipation ventilation air flues of air flue external insulation tube, 5 both sides and seal.
Be provided with insulating cylinder 15 between the high and low pressure coil, be provided with between 20, two sections coils of layer insulation between the adjacent layer of coil and the layer and be provided with connecting line 21, the high-tension coil outside is provided with high pressure external insulation tube 19.
Claims (7)
1, a kind of have a moistureproof lock-in type dry-type transformer, comprise iron core (1), low-voltage coil (2), high-tension coil (3), coil forms with the copper or aluminium conductor (6) coiling that have turn insulation, separate by layer insulation (20) between adjacent layer and the layer, the low-voltage coil concentric locking collar is connected on the iron core, high-tension coil is socketed in the low-voltage coil outside, high, be provided with insulating cylinder (15) between the low-voltage coil, the inner separately ventilating air passage that can be provided with axial heat radiation of low-voltage coil (2) and high-tension coil (3), it is characterized in that: height, the internal diameter of low-voltage coil, external diameter and height, low-voltage coil is the internal diameter of inner ventilating air passage separately, external diameter is equipped with the insulating cylinder that thickness is 0.25-2.5mm, height, seal for insulation the end of low-voltage coil.
2, the dry-type transformer of addressing according to claim 1 is characterized in that: the insulation of high and low pressure end winding is sealed and is adopted insulating end ring, insulating varnish, resin or fluid sealant.
3, dry-type transformer according to claim 1 is characterized in that: the layer insulation of high and low pressure coil is the material with F class F insulation, H class F insulation, N level or C class F insulation temperature characterisitic.
4, dry-type transformer according to claim 1 is characterized in that: high-tension coil (3) is coiled subsection cylindrical formula vertically, and hop count is an even number.
5, dry-type transformer according to claim 1 is characterized in that: high-tension coil (3) is coiled subsection cylindrical formula not vertically.
6, dry-type transformer according to claim 1 is characterized in that: high-tension coil (3) inside is provided with 0-3 axial ventilation air flue.
7, the dry-type transformer of addressing according to claim 1 is characterized in that: low-voltage coil (2) inside is provided with 0-3 axial ventilation air flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620019606 CN2914273Y (en) | 2006-06-09 | 2006-06-09 | Moistureproof enveloped dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620019606 CN2914273Y (en) | 2006-06-09 | 2006-06-09 | Moistureproof enveloped dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2914273Y true CN2914273Y (en) | 2007-06-20 |
Family
ID=38168870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620019606 Expired - Fee Related CN2914273Y (en) | 2006-06-09 | 2006-06-09 | Moistureproof enveloped dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2914273Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568773A (en) * | 2011-12-29 | 2012-07-11 | 保定天威集团(江苏)五洲变压器有限公司 | Cylindrical voltage regulator device |
| CN103988268A (en) * | 2011-10-28 | 2014-08-13 | Abb技术有限公司 | Integral mold for a transformer having a non-linear core |
| CN104795212A (en) * | 2015-04-14 | 2015-07-22 | 海鸿电气有限公司 | Three-dimensional wound core open-type dry type transformer with voltage grade being 110kV and above |
-
2006
- 2006-06-09 CN CN 200620019606 patent/CN2914273Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103988268A (en) * | 2011-10-28 | 2014-08-13 | Abb技术有限公司 | Integral mold for a transformer having a non-linear core |
| CN102568773A (en) * | 2011-12-29 | 2012-07-11 | 保定天威集团(江苏)五洲变压器有限公司 | Cylindrical voltage regulator device |
| CN104795212A (en) * | 2015-04-14 | 2015-07-22 | 海鸿电气有限公司 | Three-dimensional wound core open-type dry type transformer with voltage grade being 110kV and above |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20110609 |