CN207993633U - A kind of SCB types dry-type transformer - Google Patents
A kind of SCB types dry-type transformer Download PDFInfo
- Publication number
- CN207993633U CN207993633U CN201721792151.0U CN201721792151U CN207993633U CN 207993633 U CN207993633 U CN 207993633U CN 201721792151 U CN201721792151 U CN 201721792151U CN 207993633 U CN207993633 U CN 207993633U
- Authority
- CN
- China
- Prior art keywords
- coil
- scb
- dry
- type transformer
- insulation
- Prior art date
- 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.)
- Active
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model belongs to electric apparatus technical field, discloses a kind of SCB types dry-type transformer, and setting is there are six coil and joins end to end etc.；The utility model wire insulation uses the double glazing silk of insulation thickness 0.3mm, the processing and fabricating expense of this wire insulation relatively high.The utility model uses six sections of technique for coiling, has canceled this part of layer insulation, has directly made the polyester film and layer of non-woven fabric around the 0.05mm that double-bags, total insulation thickness 0.4mm in conducting wire；SCB type partial discharge of dry-type transformer detection values are controlled in 5pc or less excellent measures；Six sections of coiling designs are taken, product partial discharge quantity qualification rate is promoted to 99% or more；By using polyester film and non-woven fabrics as the direct canoe of insulating materials, by layer insulation capability improving to 6000V or more；Production cost reduces by 20% or more.
Description
Technical field
The utility model belongs to electric apparatus technical field more particularly to a kind of SCB types dry-type transformer.
Background technology
Currently,《2013-2017 China's dry-type transformer industry market requirement forecastings and investment strategy planning application report
It accuses》It has been shown that, China has become so far dry in the world sells of one's property the most salable country.External various high and low voltage electrical equipments production at present
Product, in occupation of some domestic staple markets, only dry-type transformer after at the end of the 20th century, almost again not from foreign countries into
Mouthful, in emphasis utility model and Important Project at home, it is difficult to find the external dry trace become.Currently, urban and rural power grids pace of construction
Accelerate, China's generated energy and electricity consumption are growing day by day.Typically, the generated energy for often increasing 1kW needs the change for increasing 11kVA
Depressor total capacity.It is estimated that dry-type distribution transformer accounts for about the 1/5-1/4 of whole distribution transformers.By power grid construction investment
Pull, the transformer industry degree of prosperity is higher, after 2010 yield by keep 20% or so speedup.According to historical experience and change
Depressor voltage class structure change, distribution transformer ratio are calculated 40% or so according to 40% ratio, and this year, China was newly-increased
Dry-type transformer yield will be up to 200,000,000 KVA or so.
In the past 20 years, with the development of world economy, dry become achieves swift and violent development in the whole world, especially in distribution
In transformer, it is more and more big to do the ratio for becoming shared, according to statistics, in the developed countries such as America and Europe, it accounted for distribution transforming 40~
50%.In China, 50% or so is accounted for.From yield, China is done from after 1989 second urban network restructuring meeting
The yield of formula transformer has significant growth, from the 1990s, shows 20% or so speed increase greatly every year,
Total output in 1999 has approached 10,000 MVA (value greatly exceeded 10 years before predict 4,005 MVA), and 2002 years total
Yield is up to 20,000 MVA, and 2004 up to 30,000 2 thousand MVA.Such speedup is also unprecedented in the world.
From above-mentioned data as it can be seen that China has become dry type in the world and sells of one's property one of the most salable country at present, no matter
Plant layout, the capacity of product, voltage etc. have been in world lead level.
But since the design of China's dry-type transformer and manufacturing process backwardness, traditional design structure and production technology restrict
Production cost reduces and the promotion of product reliability.So being badly in need of being innovated in product design and manufacture view.
In conclusion problem of the existing technology is：China's dry-type transformer design falls behind with manufacturing process, and tradition is set
Meter structure and production technology constrain the promotion of production cost reduction and product reliability.So being badly in need of in product design and manufacture
Aspect is innovated.
Invention content
In view of the problems of the existing technology, the utility model provides a kind of SCB types dry-type transformer.
The utility model is realized in this way a kind of SCB types dry-type transformer, is provided with first coil, the second coil,
Three-winding, the 4th coil, the 5th coil, the 6th coil and head and the tail connection；The first coil, the second coil, tertiary coil,
Four coils, the 5th coil, the 6th coil are equipped with two layers polyester film and layer of non-woven fabric between each other.
The utility model uses six sections of coilings, has canceled this part of layer insulation, directly makes around double-baging in conducting wire
The polyester film and layer of non-woven fabric of 0.05mm, total insulation thickness 0.4mm.
Further, the first coil joins end to end with the second coil, and the second coil is connected with tertiary coil tail tail.
Further, the 6th coil joins end to end with the 5th coil, and the 5th coil is connected with the 4th coil tail tail.
Further, the tertiary coil draws the first binding post, third binding post, the 5th binding post respectively.
Further, the 4th coil draws the second binding post, the 4th binding post, the 6th binding post respectively.
Further, the first coil draws A (B, C) binding post, the 6th coil draws X (Y, Z) binding post.
The advantages of the utility model and good effect are：The SCB type dry-type transformers, the technique is by SCB type dry type transformations
Device partial discharge quantity detected value is controlled in 5pc or less excellent measures.Six sections of coiling designs are taken, product partial discharge quantity is qualified
Rate is promoted to 99% or more.By using polyester film and non-woven fabrics as the direct canoe of insulating materials, by layer insulation
Capability improving is to 6000V or more.By changing manufacture craft, production cost is reduced by 20% or more.
In terms of product structure design：The four sections of high-tension coil coiling designs of traditional dry-type transformer are overturned, according to product
Voltage class and parameter request be changed to six sections and the above multistage coiling design.By between conducting wire voltage between layers control 300V with
It is interior so that the voltage of entire coil can be uniformly distributed, and substantially reduce charge undue concentration, and the part to effectively reduce product is put
It is electric horizontal.
In terms of product manufacture：In traditional four sections of technique for coiling, high-tension coil is using DMD composite polyester materials as layer
Between insulate, general thickness 0.2-0.4mm, material price is also cheap.Wire insulation is then using the double of insulation thickness 0.3mm
Layer glass fiber, the processing and fabricating expense of this wire insulation are relatively high.New process uses six sections of technique for coiling, has canceled interlayer
It insulate this part, directly makes the polyester film and layer of non-woven fabric around the 0.05mm that double-bags, total insulation thickness in conducting wire
0.4mm.Single-layer polyester film energy pressure resistance 3000V or more, greatly improves the dielectric strength and compression strength of conducting wire, reduces because of office
Portion, which discharges, leads to the possibility of insulation breakdown.Non-woven fabrics is easy to be infiltrated in epoxy resin, it is easier to resin-bonded, be formed with
The entirety of machine.Consider that non-woven membrane packet flat type copper wire is about the half of glass silk-covered copper wire processing charges from processing charges.Removed layers
Between the high-tension coil that insulate, the axial outer diameter of coil reduces, and the consumption of material also will be reduced accordingly.The performance of product is had
The raising of effect, and correspondingly reduce cost of manufacture.
The utility model is by optimization dry-type transformer product design scheme, using new material, adopt new technology it is equal just
The analysis in face reduces partial discharge of dry-type transformer amount to reach reduction production cost, improve product qualification rate with it is reliable for operation
The purpose of property.
On the basis of existing four sections of high-tension coil coilings of SCB types dry-type transformer, analysis multistage winding method design will
Voltage between layers controls within 300V so that the voltage of entire coil can be uniformly distributed, and reduce charge undue concentration, to set
The partial discharge quantity of product is effectively reduced on meter.
In terms of using new material, the production cost for reducing the high-voltage line of traditional four sections of coilings is determined how.Six sections of experiment
Technique for coiling improves the dielectric strength and compression strength of conducting wire, reduces using polyester film and non-woven fabrics as insulating materials
Because shelf depreciation leads to the possibility of insulation breakdown, while reducing production cost.
In terms of improving production efficiency, when overcoming four sections of coilings, it will often stop around complete one layer and be laid with layer insulation material
The problems such as material, efficiency is low.Six sections of continuous coiling modes are tested, insulating materials is organic together with wire bonding, it reduces intermediate
Link improves production efficiency.
Utility model is expected the technical indicator reached：SCB type partial discharge of dry-type transformer detection values are controlled in 5pc
Following excellent measure.Six sections of coiling designs are taken, product partial discharge quantity qualification rate is promoted to 99% or more.By using poly-
Ester film and non-woven fabrics are as the direct canoe of insulating materials, by layer insulation capability improving to 6000V or more.Pass through change
Production cost is reduced by 20% or more by manufacture craft.
Description of the drawings
Fig. 1 is the structural schematic diagram for the SCB type dry-type transformers that the utility model embodiment provides；
In figure：1, the first binding post；2, the second binding post；3, third binding post；4, the 4th binding post；5, the 5th wiring
Column；6, the 6th binding post；7, A (B, C) binding post；8, X (Y, Z) binding post；9, first coil；10, the second coil；11, third
Coil；12, the 4th coil；13, the 5th coil；14, the 6th coil.
Specific implementation mode
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing.
The structure of the utility model is explained in detail below in conjunction with the accompanying drawings.
Fig. 1, the SCB type dry-type transformers that the utility model embodiment provides, traditional transformer different from traditional transformer
Using four sections around form, the transformer using six sections around form.The transformer is made of six coils altogether, and respectively the
One coil 9, the second coil 10, tertiary coil 11, the 4th coil 12, the 5th coil 13, the 6th coil 14.The transformer is with six sections
Technique for coiling has canceled this part of layer insulation, directly makes around the polyester film for the 0.05mm that double-bags and one layer in conducting wire
Non-woven fabrics, total insulation thickness 0.4mm.
The first coil 9 joins end to end with the second coil 10, and the second coil 10 is connected with 11 tail tail of tertiary coil.It is described
6th coil 14 joins end to end with the 5th coil 13, and the 5th coil 13 is connected with 12 tail tail of the 4th coil.The tertiary coil 11
The first binding post 1, third binding post 3, the 5th binding post 5 are drawn respectively.4th coil 12 draws the second binding post respectively
2, the 4th binding post 4, the 6th binding post 6.The first coil draws A (B, C) binding post 7, the 6th coil is drawn X (Y, Z) and connect
Terminal 8.
Utility model feasibility comprehensive analysis
1, technology is analyzed
The utility model product will be analyzed from design scheme, application material, production technology etc., and major technique refers to
Mark is analyzed as follows：
(1) product design scheme feasibility analysis
From previous SCB dry-type transformers production practices and test data analyzer, the partial discharge quantity of four sections of coiling designs closes
Lattice rate is about 85% or so, and six sections of coiling design schemes, and the voltage between layers between conducting wire can control within 300V so that whole
The voltage of a coil can be uniformly distributed, and substantially reduce charge undue concentration, to reduce product partial discharge quantity, shelf depreciation
The most of detection data of amount is less than 5pc, and qualification rate can reach 99% or more.
With this as it can be seen that using six sections and the above coiling design scheme of multistage, the shelf depreciation of product can be largely reduced
Amount improves product qualification rate, not only improves the safe operation of electric product, and can prolong the service life.
(2) product material uses feasibility analysis
The high-tension coil of traditional four sections of coilings is using DMD composite polyester materials as layer insulation, general thickness 0.2-
0.4mm, pressure resistance are more than 3000V, and wire insulation is then the double glazing silk using insulation thickness 0.3mm, this wire insulation
Processing and fabricating is costly.
Six sections of coiling schemes that the utility model uses, have just canceled this part of layer insulation, directly on conducting wire
Around the polyester film non-woven fabrics for 0.05mm thickness of double-baging, total insulation thickness 0.4mm.Single-layer polyester film energy pressure resistance 3000V or more,
Two layers theoretically can pressure resistance 6000V or more.It is analyzed from processing charges, non-woven membrane packet flat type copper wire is about that glass silk-covered copper wire adds
The half of expenses of labour.Remove the high-tension coil of layer insulation, the axial outer diameter of coil reduces, and the consumption of material also will accordingly subtract
It is few.
Compared to the high-tension coil of traditional four sections of coilings, greatly improve the dielectric strength and compression strength of conducting wire, reduce because
Shelf depreciation leads to the possibility of insulation breakdown, and the performance of product is effectively promoted, and correspondingly reduces cost of manufacture.
2, industry and market analysis
《2013-2017 China's dry-type transformer industry market requirement forecastings are reported with investment strategy planning application》It is aobvious
Show, China has become so far dry in the world sells of one's property the most salable country.External various high and low voltage electrical equipment products at present, occupy
Some domestic staple markets, dry-type transformer is after at the end of the 20th century only, almost again not from external import, at home
Emphasis utility model and Important Project in, be difficult to find the external dry trace become.In the past 20 years, it with the development of world economy, does
Change achieves swift and violent development in the whole world, and especially in distribution transformer, the ratio done shared by becoming is more and more big, according to system
Meter, in the developed countries such as America and Europe, it has accounted for the 40-50% of distribution transforming.
With economic liftoff, demand of the China to dry-type transformer is also continuous with 20% speedup.Currently, urban and rural power grids
Pace of construction accelerates, and China's generated energy and electricity consumption are growing day by day.Typically, the generated energy for often increasing 1kW, needs to increase
The transformer total capacity of 11kVA；It is estimated that dry-type distribution transformer accounts for about the 1/5-1/4 of whole distribution transformers.It is built by power grid
If the pulling of investment, the transformer industry degree of prosperity is higher, after 2010 yield by keep 20% or so speedup.According to history
Experience and the variation of transformer voltage hierarchical organization, distribution transformer ratio calculate, this year 40% or so according to 40% ratio
China increases dry-type transformer yield newly will be up to 200,000,000 KVA or so.The fast development of national economy, power supply, power grid are benefited from recent years
Construction input constantly increase, the market demand of equipment for power transmission and distribution rises appreciably, it is contemplated that China is to becoming in a long time
The market demand of the equipment for power transmission and distribution such as depressor will keep higher level.
3, financial analysis (investment payback time, the input-output ratio that calculate utility model)
The utility model declared is in research and development or the pilot scale stage need to provide the laboratory report of product, at the utility model declared
Product testing survey report need to be provided in the industrialization stage；
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is every according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (6)
1. a kind of SCB types dry-type transformer, which is characterized in that the SCB types dry-type transformer is provided with first coil, second
Coil, tertiary coil, the 4th coil, the 5th coil, the 6th coil and head and the tail connection；The first coil, the second coil, third
Coil, the 4th coil, the 5th coil, the 6th coil are equipped with two layers polyester film and layer of non-woven fabric between each other.
2. SCB types dry-type transformer as described in claim 1, which is characterized in that the first coil and the second coil head and the tail phase
Even, the second coil is connected with tertiary coil tail tail.
3. SCB types dry-type transformer as described in claim 1, which is characterized in that the 6th coil and the 5th coil head and the tail phase
Even, the 5th coil is connected with the 4th coil tail tail.
4. SCB types dry-type transformer as described in claim 1, which is characterized in that the tertiary coil draws the first wiring respectively
Column, third binding post, the 5th binding post.
5. SCB types dry-type transformer as described in claim 1, which is characterized in that the 4th coil draws the second wiring respectively
Column, the 4th binding post, the 6th binding post.
6. SCB types dry-type transformer as described in claim 1, which is characterized in that the first coil draws A binding posts, the 6th
Coil draws X binding posts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792151.0U CN207993633U (en) | 2017-12-20 | 2017-12-20 | A kind of SCB types dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792151.0U CN207993633U (en) | 2017-12-20 | 2017-12-20 | A kind of SCB types dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207993633U true CN207993633U (en) | 2018-10-19 |
Family
ID=63816704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721792151.0U Active CN207993633U (en) | 2017-12-20 | 2017-12-20 | A kind of SCB types dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207993633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993816A (en) * | 2017-12-20 | 2018-05-04 | 湖北三峡职业技术学院 | A kind of SCB types dry-type transformer |
-
2017
- 2017-12-20 CN CN201721792151.0U patent/CN207993633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993816A (en) * | 2017-12-20 | 2018-05-04 | 湖北三峡职业技术学院 | A kind of SCB types dry-type transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101788636B (en) | Resonance voltage resistant test system and voltage resistant test method of sample with large capacitance | |
| CN204269765U (en) | A kind of transformer for power frequency withstand test and test unit | |
| CN207993633U (en) | A kind of SCB types dry-type transformer | |
| CN106546782A (en) | A kind of series parallel resonance reactor array for the test of overlength cable ac voltage withstanding | |
| CN201829310U (en) | Test transformer | |
| CN203232785U (en) | Dry-type transformer | |
| CN201251622Y (en) | Heavy current up-flow aggregate unit for field test of 750v current transformator | |
| CN104467398B (en) | Integrating device of EMI filter and boost inductor in bridgeless PFC circuit | |
| CN201820628U (en) | Electronic current and voltage transformer | |
| CN201262881Y (en) | Single-phase testing transformer | |
| CN107993816A (en) | A kind of SCB types dry-type transformer | |
| CN201741561U (en) | Power transformer with shell type structure | |
| CN204480863U (en) | Rectifier transformer winding arrangement structure | |
| CN102420043B (en) | Single-phase high-impedance auto-transformer | |
| CN201219060Y (en) | Multi-tap dry-type voltage-regulating transformer | |
| CN205122372U (en) | Intelligent power distribution transformer device | |
| CN201126753Y (en) | Transformer and once siding group thereof as well as tube drive circuit | |
| CN204614636U (en) | A kind of low-loss photovoltaic power generation transformer | |
| CN203338894U (en) | Multi-capacity dry-type air-core reactor | |
| CN208224331U (en) | A kind of wideband resonance potential generator | |
| CN207587495U (en) | The transformer of hot pipe cooling dry type | |
| CN202258727U (en) | Transformer structure | |
| CN202871505U (en) | High voltage withstanding totally-enclosed isolation transformer | |
| CN201765900U (en) | Novel dry type hollow electric reactor | |
| CN201277991Y (en) | Chain high voltage sensing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 443000 No. 31 Stadium Road, Yichang, Hubei Patentee after: Hubei Dongming Electric Co.,Ltd. Patentee after: YICHANG DONGMING ELECTRICAL CO.,LTD. Address before: 443000 No. 31 Stadium Road, Yichang, Hubei Patentee before: HUBEI THREE GORGES POLYTECHNIC Patentee before: YICHANG DONGMING ELECTRICAL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CU01 | Correction of utility model |
Correction item: Patentee|Address|Patentee Correct: Hubei Three Gorges Vocational and Technical College|443000 No. 31 Stadium Road, Yichang, Hubei|Hubei Dongming Electric Co.,Ltd. False: Hubei Dongming Electric Co.,Ltd.|443000 No. 31 Stadium Road, Yichang, Hubei|YICHANG DONGMING ELECTRICAL CO.,LTD. Number: 38-02 Volume: 38 |
|
| CU01 | Correction of utility model |