CN203444935U - Direct distribution type distribution transformer - Google Patents
Direct distribution type distribution transformer Download PDFInfo
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- CN203444935U CN203444935U CN201320542484.3U CN201320542484U CN203444935U CN 203444935 U CN203444935 U CN 203444935U CN 201320542484 U CN201320542484 U CN 201320542484U CN 203444935 U CN203444935 U CN 203444935U
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- transformer
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- pressure winding
- distribution transformer
- transformer body
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Abstract
The utility model discloses a direct distribution type distribution transformer which comprises a transformer body, a high voltage sleeve and a low voltage sleeve. The high voltage sleeve is connected with a high voltage winding, the low voltage sleeve is connected with a low voltage winding, and a main insulation coil keeps the insulation distance of 34mm-36mm from an auxiliary insulation coil in the transformer body. Compared with the prior art, the direct distribution type distribution transformer achieves power supplying to a 0.4kV user through a 66kV or 110kV line without a 35kV or 10kV grade voltage reduction power transformer, intermediate energy consumption is avoided, and engineering construction investment is reduced.
Description
Technical field
The utility model relates to power transformer field, exactly refers to a kind of formula distribution transformer of directly joining.
Background technology
Each remote area of Wei Shi China has access to electricity, and the paces of the upgrading of rural power grids are constantly accelerated, and transformer station constantly sets up in remote area, and a large amount of distribution substations are built the remote districts of more close electricity consumption in; Along with the increase of electrical network, operational mode is day by day complicated, thereby electricity consumption user is higher to the requirement of the fail safe of power quality and electric power, accordingly distribution transformer is had higher requirement.
At present, the structure of known common distribution transformer is by an iron core, winding, fuel tank, device body and assembles without field switch.In order to realize at a distance, transmit electric power, the step-down transformer that all can lead to primary station, secondary substation in the centre of 66kV, 110kV ultra-high-tension power transmission line reduces voltage, just finally power delivery is arrived to user by low voltage distribution transformer.Common transformer all needs the step-down of logical primary station, secondary substation in the middle of the electricity consumption of the substation in remote complex area area, transformer is ability distribution or the direct distribution to other special requirements user finally, in the middle of it, energy consumption is large, and engineering equipment investment cost is high.
Utility model content
For above-mentioned defect, the technical problem that the utility model solves is to provide a kind of formula distribution transformer of directly joining, realized from 66kV or 110kV circuit directly to 0.4kV user's power supply, without 35kV or 10kV level step-down power transformer and other converting equipment, energy consumption in the middle of exempting, has reduced engineering construction investment.
In order to solve above technical problem, the utility model provides directly joins formula distribution transformer, comprise transformer body, bushing and low-tension bushing, described bushing connects high pressure winding, described low-tension bushing connects low pressure winding, and in described transformer body, main insulation coil and longitudinal insulation coil keep the insulation distance of 34mm-36mm.
Preferably, the coil of described high pressure winding has adopted the high-intensity transposed conductor of tack.
Preferably, in the coil of the high pressure winding in described transformer body, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures.
Preferably, in the coil of the low pressure winding in described transformer body, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures.
Preferably, the coil of the high pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
Preferably, the coil of the low pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
Preferably, in described cardboard cylinder, there is auxiliary stay in outside in the increase at a distance of 60-70mm.
The utility model provides directly joins formula distribution transformer, comprise transformer body, bushing and low-tension bushing, described bushing connects high pressure winding, described low-tension bushing connects low pressure winding, and in described transformer body, main insulation coil and longitudinal insulation coil keep the insulation distance of 34mm-36mm.Compared with prior art, the utility model provides directly joins formula distribution transformer, realized from 66kV or 110kV circuit directly to 0.4kV user's power supply, guarantee that coil has good electrical characteristic and impact strength, without 35kV or 10kV level step-down power transformer and other converting equipment, energy consumption in the middle of exempting, has reduced engineering construction investment.
Accompanying drawing explanation
Fig. 1 directly joins the structural representation of formula distribution transformer in the utility model embodiment;
Fig. 2 is the inner section structural representation of transformer body in the utility model embodiment.
Embodiment
For those skilled in the art can understand technical scheme provided by the utility model better, below in conjunction with specific embodiment, set forth.
Refer to Fig. 1 and Fig. 2, Fig. 1 directly joins the structural representation of formula distribution transformer in the utility model embodiment; Fig. 2 is the inner section structural representation of transformer body in the utility model embodiment.
The utility model embodiment provides directly joins formula distribution transformer, comprise transformer body 1, no-excitation voltage regulating tap switch 2, mercurial thermometer 5, oil surface temperature meter 6, Buchholz relay 7, bushing 3 and low-tension bushing 4, bushing 3 connects high pressure winding, low-tension bushing 4 connects low pressure winding, the interior main insulation coil of transformer body 1 and longitudinal insulation coil keep the insulation distance of 34mm-36mm, guarantee that coil has good electrical characteristic and impact strength.
The coil of high pressure winding 8 has adopted the high-intensity transposed conductor of tack, makes coil winding construction compacter, effectively reduces supplementary load loss and the eddy current loss of coil; The mechanical strength and the coiling quality that have improved coil have increased the mechanical stability of transformer when short circuit simultaneously.
In the coil of the high pressure winding 8 in transformer body 1, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures, the oil flow of the horizontal oil duct of intensifier coil, reduce the temperature gradient because laterally oil duct oil stream dead band produces, improved the heat load ability of coil, effectively control temperature rise, guarantee the useful life of transformer.
In the coil of the low pressure winding in transformer body 1, be placed with 3-5 oil stream guide plate and form Z-shaped oil channel structures, the oil flow of the horizontal oil duct of intensifier coil, reduce the temperature gradient because laterally oil duct oil stream dead band produces, improved the heat load ability of coil, effectively control temperature rise, guarantee the useful life of transformer.
The coil of the high pressure winding 8 in transformer body 1 adopts cardboard cylinder to support, and the outside of cardboard cylinder is provided with outer stay, and in cardboard cylinder, there is auxiliary stay 9 in outside in the increase at a distance of 60-70mm, reduces the deformation of the stressed generation of its coil.The coil of the low pressure winding in transformer body 1 adopts cardboard cylinder to support, and the outside of cardboard cylinder is provided with outer stay, and in cardboard cylinder, there is auxiliary stay 9 in outside in the increase at a distance of 60-70mm, reduces the deformation of the stressed generation of its coil.
Compared with prior art, the utility model provides directly joins formula distribution transformer, has realized from 66kV or 110kV circuit directly to 0.4kV user's power supply, without 35kV or 10kV level step-down power transformer and other converting equipment, energy consumption in the middle of exempting, has reduced engineering construction investment.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. directly join formula distribution transformer for one kind, comprise transformer body, bushing and low-tension bushing, described bushing connects high pressure winding, described low-tension bushing connects low pressure winding, it is characterized in that, in described transformer body, main insulation coil and longitudinal insulation coil keep the insulation distance of 34mm-36mm.
2. the formula distribution transformer of directly joining according to claim 1, is characterized in that, the coil of described high pressure winding has adopted the high-intensity transposed conductor of tack.
3. the formula distribution transformer of directly joining according to claim 1, is characterized in that, is placed with 3-5 oil stream guide plate and forms Z-shaped oil channel structures in the coil of the high pressure winding in described transformer body.
4. the formula distribution transformer of directly joining according to claim 1, is characterized in that, is placed with 3-5 oil stream guide plate and forms Z-shaped oil channel structures in the coil of the low pressure winding in described transformer body.
5. the formula distribution transformer of directly joining according to claim 1, is characterized in that, the coil of the high pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
6. the formula distribution transformer of directly joining according to claim 1, is characterized in that, the coil of the low pressure winding in described transformer body adopts cardboard cylinder to support, and the outside of described cardboard cylinder is provided with outer stay.
7. according to directly joining formula distribution transformer described in claim 5 or 6 any one, it is characterized in that, in described cardboard cylinder, there is auxiliary stay in outside in the increase at a distance of 60-70mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542484.3U CN203444935U (en) | 2013-09-02 | 2013-09-02 | Direct distribution type distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320542484.3U CN203444935U (en) | 2013-09-02 | 2013-09-02 | Direct distribution type distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444935U true CN203444935U (en) | 2014-02-19 |
Family
ID=50095963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320542484.3U Expired - Fee Related CN203444935U (en) | 2013-09-02 | 2013-09-02 | Direct distribution type distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN110491659A (en) * | 2019-07-22 | 2019-11-22 | 辽宁中能电力实业集团有限责任公司 | 66kV(110kV) voltage class wind power generation boosting transformer |
-
2013
- 2013-09-02 CN CN201320542484.3U patent/CN203444935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444380A (en) * | 2019-07-22 | 2019-11-12 | 辽宁中能电力实业集团有限责任公司 | 66kV voltage class Oversea wind power generation single-phase step-up transformer group |
| CN110491659A (en) * | 2019-07-22 | 2019-11-22 | 辽宁中能电力实业集团有限责任公司 | 66kV(110kV) voltage class wind power generation boosting transformer |
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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: 20140219 Termination date: 20210902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |