CN203812698U - Resin insulation excitation-free voltage-regulation distribution transformer - Google Patents
Resin insulation excitation-free voltage-regulation distribution transformer Download PDFInfo
- Publication number
- CN203812698U CN203812698U CN201420108509.3U CN201420108509U CN203812698U CN 203812698 U CN203812698 U CN 203812698U CN 201420108509 U CN201420108509 U CN 201420108509U CN 203812698 U CN203812698 U CN 203812698U
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- CN
- China
- Prior art keywords
- insulating cylinder
- low
- voltage coil
- insulation
- coil
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- 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.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 45
- 229920005989 resin Polymers 0.000 title claims abstract description 17
- 239000011347 resin Substances 0.000 title claims abstract description 17
- 239000003822 epoxy resin Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 25
- 239000011521 glass Substances 0.000 claims abstract description 25
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 claims description 12
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Insulating Of Coils (AREA)
Abstract
The utility model relates to a resin insulation excitation-free voltage-regulation distribution transformer which is characterized by comprising an iron core. A low-voltage coil and a high-voltage coil sequentially wind the iron core from inside to outside. A first insulating cylinder is disposed between the iron core and the low-voltage coil, a second insulating cylinder is disposed between the low-voltage coil and the high-voltage coil, a third insulating cylinder is disposed on the outer surface of the high-voltage coil, and an iron core-insulating cylinder-low-voltage coil-insulating cylinder-high-voltage coil-insulating cylinder mutual inductance connecting structure is formed. The first insulating cylinder, the second insulating cylinder and the third insulating cylinder are all called insulating cylinders. Each insulating cylinder 4 comprises an epoxy resin layer or epoxy resin layer and an epoxy glass grid cloth layer. The resin insulation excitation-free voltage-regulation distribution transformer has the advantages that the iron core is of a long circular structure, the insulating cylinders wrap the low-voltage coil and the high-voltage coil, and the low-voltage coil, the iron core and the high-voltage coil form the compact integral connecting structure under the pressure of the insulating cylinders; the resin insulation excitation-free voltage-regulation distribution transformer is compact in structure, small in size, small in air gap, low in magnetic resistance and magnetic leakage, free of power consumption, low in power factor and good in insulating performance.
Description
Technical field
The utility model relates to a kind of distribution transformer, and particularly a kind of insulation resin non-excitation voltage regulation distribution transformer is a kind of electric pressure 6-35kV, the capacity insulation resin non-excitation voltage regulation distribution transformer at 3-2000kVA.Belong to transformer technology field.
Background technology
At present, transformer is as electric energy transducer, between power plant and user, play a part to boost, step-down and power dispensing, and be requisite equipment in power delivery process.Along with the extension of electrical network, the usage quantity of transformer constantly increases, and volume requirement, the insulation property of transformer also constantly promote.Due to the transformer of prior art, its iron core generally adopts fluid to insulate, and therefore, has that internal coil diameter mechanical strength is lower, transformer internal structure is loose, the defect such as leakage of oil and troublesome maintenance more greatly, easily appears in volume.
Utility model content
The purpose of this utility model, is for a kind of insulation resin non-excitation voltage regulation distribution transformer is provided, and by adopting resin and glass grid cloth insulate and seal, has the beneficial effect of the little and good insulating of compact conformation, volume.
The purpose of this utility model can reach by the following technical programs:
A kind of insulation resin non-excitation voltage regulation distribution transformer, its design feature is: comprise iron core, on iron core, be wound with successively from inside to outside low-voltage coil and high-tension coil, between iron core and low-voltage coil, be provided with one of insulating cylinder, between low-voltage coil and high-tension coil, be provided with two of insulating cylinder, be provided with three of insulating cylinder at the outer surface of high-tension coil, form the mutual inductance syndeton of iron core-insulating cylinder-low-voltage coil-insulating cylinder-high-tension coil-insulating cylinder; Three of two and insulating cylinder of one of insulating cylinder, insulating cylinder is referred to as insulating cylinders, and described insulating cylinder 4 is made up of epoxy resin layer or epoxy resin layer and expoxy glass grid layer of cloth.
The purpose of this utility model can also reach by the following technical programs:
Further, described iron core is Long Circle structure.
Further, insulating cylinder adopts epoxy resin and expoxy glass grid cloth to make, and forms epoxy resins insulation layer and expoxy glass grid cloth reinforced layer
Further, the insulating cylinder of high-tension coil outer ring is provided with insulation column and dead ring, and insulation column and dead ring are made up of epoxy resin and expoxy glass grid cloth, forms epoxy resins insulation layer and expoxy glass grid cloth reinforced layer; Be provided with high-voltage terminal at described insulation column and dead ring inside, high-voltage terminal is communicated with high-tension coil.
Further, the middle part of core section is that rectangle, both sides respectively form Long Circle structure by a wide semicircle as diameter of the sheet taking rectangle; Low-voltage coil, high-tension coil, insulating cylinder should be Long Circle structure mutually with iron core.
Further, high-tension coil is drawn by insulation column, and lead-out wire is realized machinery by expoxy glass grid layer of cloth and strengthened after wrapping, and insulation column and high-tension coil are combined into a complete entirety.
The utlity model has following beneficial effect:
1, the oval structure of the utility model employing unshakable in one's determination, low-voltage coil and high-tension coil outer ring are all coated by insulating cylinder, under the pressure of insulating cylinder, the tight integral type syndeton that low-voltage coil, iron core and high-tension coil form, there is compact conformation, volume is little and air-gap is little, magnetic resistance and the little feature of leakage field minimizing, idle and power factor (PF), the beneficial effect of good insulation preformance.
2, the utility model insulating cylinder adopts epoxy resin and expoxy glass grid cloth to make; form epoxy resins insulation layer and expoxy glass grid cloth reinforced layer; strengthen the mechanical strength of electric conductor; play the destruction of opposing external pull; play the effect of protection Inside coil and terminals; there is mechanical strength large, and the beneficial effect of insulation property.
3, the utility model is owing to adopting epoxy resin and expoxy glass grid cloth to make, form epoxy resins insulation layer and expoxy glass grid cloth reinforced layer, without adopting fluid insulation, there is the leakage of oil of preventing, guarantee the normal operation of transformer and the beneficial effect such as safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model specific embodiment 1.
Fig. 2 is the partial sectional view of the A-A direction of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Specific embodiment 1:
See figures.1.and.2, the present embodiment comprises unshakable in one's determination 1, on unshakable in one's determination 1, be wound with successively from inside to outside low-voltage coil 2 and high-tension coil 3, between iron core 1 and low-voltage coil 2, be provided with one of insulating cylinder, between low-voltage coil 2 and high-tension coil 3, be provided with two of insulating cylinder, be provided with three of insulating cylinder at the outer surface of high-tension coil 3, form the mutual inductance syndeton of iron core-insulating cylinder-low-voltage coil-insulating cylinder-high-tension coil-insulating cylinder; Three of two and insulating cylinder of one of insulating cylinder, insulating cylinder is referred to as insulating cylinders 4, and described insulating cylinder 4 is made up of epoxy resin layer or epoxy resin layer and expoxy glass grid layer of cloth.
In the present embodiment:
Between low-voltage coil 2, high-tension coil 3, adopt special epoxy resin layer to realize electric insulation, and adopt expoxy glass grid layer of cloth to realize machinery enhancing.
Described unshakable in one's determination 1 is Long Circle structure.Insulating cylinder 4 adopts epoxy resin and expoxy glass grid cloth to make, form epoxy resins insulation layer and expoxy glass grid cloth reinforced layer, mechanical strength is larger, low-voltage coil 2 and high-tension coil 3 are coated on outer ring unshakable in one's determination, under the pressure of insulating cylinder 4, make low-voltage coil 2, high-tension coil 3 and unshakable in one's determination 1 form and be connected compact structure; This structural volume is little, air-gap is little, and magnetic resistance and leakage field minimizing, idle and power factor (PF) be little, promoted transformer performance.
The insulating cylinder 4 of high-tension coil outer ring is provided with insulation column 4-1 and dead ring 4-2, and insulation column 4-1 and dead ring 4-2 are made up of epoxy resin and expoxy glass grid cloth, forms epoxy resins insulation layer and expoxy glass grid cloth reinforced layer.Described insulation column 4-1 and dead ring 4-2 inside are provided with high-voltage terminal 4-3, and high-voltage terminal 4-3 is drawn by high-tension coil 3.Make high-voltage terminal 4-3 have good insulation and tensile property, under rugged environment, can better ensure the safe operation of transformer.
The middle part in 1 cross section unshakable in one's determination is that rectangle, both sides respectively form Long Circle structure by a wide semicircle as diameter of the sheet taking rectangle; Low-voltage coil 2, high-tension coil 3, insulating cylinder 4 should be Long Circle structure mutually with unshakable in one's determination 1.
High-tension coil 4 is drawn by insulation column 4-1, and lead-out wire is realized machinery by expoxy glass grid layer of cloth 6 and strengthened after wrapping, and insulation column and high-tension coil 4 are combined into a complete entirety securely.
The present invention forms insulation resin non-excitation voltage regulation distribution transformer.
The above; it is only preferably specific embodiment of the utility model; but protection range of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose scope in; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, all being belonged to protection range of the present utility model.
Claims (6)
1. an insulation resin non-excitation voltage regulation distribution transformer, it is characterized in that: comprise iron core (1), on (1) unshakable in one's determination, be wound with successively from inside to outside low-voltage coil (2) and high-tension coil (3), between (1) unshakable in one's determination and low-voltage coil (2), be provided with one of insulating cylinder, between low-voltage coil (2) and high-tension coil (3), be provided with two of insulating cylinder, outer surface at high-tension coil (3) is provided with three of insulating cylinder, forms the mutual inductance syndeton of iron core-insulating cylinder-low-voltage coil-insulating cylinder-high-tension coil-insulating cylinder; Three of two and insulating cylinder of one of insulating cylinder, insulating cylinder is made up of epoxy resin layer or epoxy resin layer and expoxy glass grid layer of cloth.
2. a kind of insulation resin non-excitation voltage regulation distribution transformer according to claim 1, is characterized in that: described iron core (1) is Long Circle structure.
3. a kind of insulation resin non-excitation voltage regulation distribution transformer according to claim 1 and 2, it is characterized in that: three of two and insulating cylinder of one of insulating cylinder, insulating cylinder adopts epoxy resin and expoxy glass grid cloth to make, and forms epoxy resins insulation layer and expoxy glass grid cloth reinforced layer.
4. a kind of insulation resin non-excitation voltage regulation distribution transformer according to claim 1 and 2, it is characterized in that: the insulating cylinder of high-tension coil outer ring is provided with insulation column (4-1) and dead ring (4-2), insulation column (4-1) and dead ring (4-2) are made up of epoxy resin and expoxy glass grid cloth, form epoxy resins insulation layer and expoxy glass grid cloth reinforced layer; Be provided with high-voltage terminal (4-3) at described insulation column (4-1) and dead ring (4-2) inside, high-voltage terminal (4-3) is communicated with high-tension coil (3).
5. a kind of insulation resin non-excitation voltage regulation distribution transformer according to claim 1 and 2, is characterized in that: the middle part in (1) cross section unshakable in one's determination is that rectangle, both sides respectively form Long Circle structure by a wide semicircle as diameter of the sheet taking rectangle; Low-voltage coil (2), high-tension coil (3), each insulating cylinder should be Long Circle structure mutually with (1) unshakable in one's determination.
6. a kind of insulation resin non-excitation voltage regulation distribution transformer according to claim 1 and 2, it is characterized in that: high-tension coil (3) is drawn by insulation column (4-1), lead-out wire is realized machinery by expoxy glass grid layer of cloth and is strengthened after wrapping up, and insulation column (4-1) and high-tension coil (3) are combined into a complete entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108509.3U CN203812698U (en) | 2014-03-08 | 2014-03-08 | Resin insulation excitation-free voltage-regulation distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108509.3U CN203812698U (en) | 2014-03-08 | 2014-03-08 | Resin insulation excitation-free voltage-regulation distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812698U true CN203812698U (en) | 2014-09-03 |
Family
ID=51451418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420108509.3U Expired - Fee Related CN203812698U (en) | 2014-03-08 | 2014-03-08 | Resin insulation excitation-free voltage-regulation distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812698U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658743A (en) * | 2015-03-18 | 2015-05-27 | 广州市一变电气设备有限公司 | Low-noise transformer |
| CN110808154A (en) * | 2019-12-05 | 2020-02-18 | 宁波健信核磁技术有限公司 | Shielding device for gradient coil |
-
2014
- 2014-03-08 CN CN201420108509.3U patent/CN203812698U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658743A (en) * | 2015-03-18 | 2015-05-27 | 广州市一变电气设备有限公司 | Low-noise transformer |
| CN110808154A (en) * | 2019-12-05 | 2020-02-18 | 宁波健信核磁技术有限公司 | Shielding device for gradient coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |