CN203536195U - Voltage regulating transformer - Google Patents
Voltage regulating transformer Download PDFInfo
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- CN203536195U CN203536195U CN201320248451.8U CN201320248451U CN203536195U CN 203536195 U CN203536195 U CN 203536195U CN 201320248451 U CN201320248451 U CN 201320248451U CN 203536195 U CN203536195 U CN 203536195U
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- winding
- voltage regulating
- secondary winding
- regulating transformer
- transformer
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Abstract
The utility model provides a voltage regulating transformer, which comprises an iron core and a transformer winding winded on the iron core, wherein the transformer winding comprises a primary winding and an assistant winding and the assistant winding has a structure of mixed winding of foil and wires. The voltage regulating transformer can satisfy different requirements for voltage regulating at different places with electricity utilization.
Description
Technical field
The utility model belongs to technical field of transformer manufacturing, is specifically related to a kind of voltage regulating transformer.
Background technology
In industrial production, the system that many electricity consumption occasions require the secondary of transformer can be connected to different electric pressures is subject to electricity, not only need to meet pressure regulation requirement but also needs and provided reactance accurately, inductance value for some power regulation circuit, in use also to there be good anti-short circuit capability and anti-system power supply harmonic wave ability, and will meet the fire-protection rating requirement of Workplace.And the transformer that can meet above-mentioned condition in industrial production normally needs there are many voltage regulating transformers, the problem of its existence is as follows:
1. the system that the Circuit Fault on Secondary Transformer of prior art only can be connected to single electric pressure is subject to electricity, if need to be for Code in Hazardous Special Locations as electricity consumption industrial and mining enterprises such as chemical industry, rectification, metallurgy, need the voltage regulating transformer of large quantities of buying Multiple Types, cause that project occupation of land area is large, cost is high and reliability is low;
2. voltage regulating transformer quantity is many, is unfavorable for repair and maintenance;
3. most voltage regulating transformers are oil-filled transformer, and this structure easily produces the problem of leakage of oil contaminated environment, and easily blast and cause fire safety evaluating hidden danger.
Utility model content
Technical problem to be solved in the utility model is for above shortcomings in prior art, and a kind of voltage regulating transformer that the different pressure regulation of all kinds of different electricity consumption occasions (as distribution, rectification, isolation etc.) require that meets is provided.
The technical scheme that solution the utility model technical problem adopts is that this voltage regulating transformer comprises iron core, is wound on the Transformer Winding on iron core, described Transformer Winding comprises former limit winding and secondary winding, wherein, described secondary winding adopts paper tinsel, line to mix around structure.
Wherein, described secondary winding comprises multistage coil, and a part of coil in this multistage coil adopts paper tinsel around mode coiling, and remaining a part of coil adopts the coiling of wire-wound mode, thereby forms described paper tinsel, line is mixed around structure.
Preferably, in the multistage coil of described secondary winding, the coil of close former limit winding adopts paper tinsel around mode coiling, and near the coil employing wire-wound mode coiling of iron core, other remaining coils adopt paper tinsels around mode or the coiling of wire-wound mode.
Preferably, described secondary winding is provided with a plurality of wiretappings that go out.
Preferably, in the multistage coil of described secondary winding, between every two sections of adjacent coils, be provided with air flue.
Preferably, this voltage regulating transformer also comprises for avoiding from the high frequency overvoltage of former limit winding and high frequency lightning surge the hurtful electric screen parts of secondary winding, and it is outer and between secondary winding and former limit winding that described electric screen parts are located at described secondary winding.
Preferably described former limit winding is located at the outside of secondary winding.
Preferably described former limit winding adopts paper tinsel around segmented layered structure.
Preferred described iron core adopts cold rolling grain-oriented electrical silicon steel sheet to form by 45 ° three grades complete tiltedly stepping lamination mode stacks, and iron core adopts atresia colligation, draws screw rod, arm-tie clamping structure.
Wherein, described former limit winding is high pressure winding, and secondary winding is low pressure winding, between described former limit winding and secondary winding, is also provided with insulating cylinder.
Preferably this voltage regulating transformer is dry-type transformer.
The utility model voltage regulating transformer mixes around structure because secondary winding adopts paper tinsel, line, when secondary winding is provided with a plurality of while going out wiretapping, can be according to paper tinsel around the different characteristics with wire-wound mode, tap on the coil of different winding method coilings is selected, thereby can be made secondary winding export the voltage of different brackets.
This voltage regulating transformer is of many uses, can meet all kinds of electricity consumption occasions (as distribution, rectification, isolation etc.) requirement, and fail safe, reliability, has good stability, and is a kind of Multipurpose voltage-regulated transformer.This voltage regulating transformer also has simple in structure, the advantage that cost is low.
The range of regulation of the utility model voltage regulating transformer is 200V～11000V.
Accompanying drawing explanation
Fig. 1 is the structural representation of voltage regulating transformer in the utility model embodiment 2.
In figure: 1-iron core; 2-coil; 3-air flue; 4-electric screen parts; 5-insulating cylinder; The former limit of 6-winding.
Embodiment
For making those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1:
The present embodiment provides a kind of voltage regulating transformer, comprises iron core, is wound on the Transformer Winding on iron core, and described Transformer Winding comprises former limit winding and secondary winding, and wherein, described secondary winding adopts paper tinsel, line to mix around structure.
Embodiment 2:
As shown in Figure 1, the voltage regulating transformer in the present embodiment is a kind of dry-type transformer.This voltage regulating transformer comprises iron core 1, is wound on the Transformer Winding on iron core, and described Transformer Winding comprises former limit winding 6 and secondary winding.Wherein, described former limit winding 6 is high pressure winding, and secondary winding is low pressure winding.
In the present embodiment, described former limit winding 6 is located at the outside of secondary winding, and described secondary winding adopts paper tinsel, line to mix around structure.
Preferably, in the present embodiment voltage regulating transformer, on iron core 1, set gradually from inside to outside and be provided with secondary winding 2, electric screen parts 4, insulating cylinder 5 and former limit winding 6.
Wherein, described secondary winding comprises multistage coil 2, and a part of coil in this multistage coil adopts paper tinsel around mode coiling, and remaining a part of coil adopts the coiling of wire-wound mode, thereby forms described paper tinsel, line is mixed around structure.
Particularly, in the present embodiment, in the multistage coil of described secondary winding, two sections of coils 2 of close former limit winding adopt paper tinsels around mode coiling, two sections of coils near iron core 1 adopt the coiling of wire-wound mode, and in described multistage coil, other remaining coils adopt paper tinsel around mode or the coiling of wire-wound mode.
Wherein, according to the secondary winding that do not coexist of load, be provided with a plurality of wiretappings that go out.In the present embodiment, the quantity that goes out wiretapping is 6, and 6 go out wiretapping is respectively u0-u5.
Wherein u0 is public terminal, and the operating state of this secondary winding is divided into: u0-u1, u0-u2, u0-u3, u0-u4, u0-u5.And u0-u1 gear is electric current maximum and the minimum gear of voltage (coil of this gear adopt paper tinsel more favourable around mode), the rest may be inferred, and u0-u5 gear is electric current minimum and the highest gear of voltage (coil of this gear adopt wire-wound mode more favourable).According to the different voltage needs of load, by adopting the wiretapping that of different gears, thus the voltage of exportable different brackets.
In the present embodiment, secondary winding (paper tinsel-line is mixed around structure) is to carry out successively the wherein coiling of each coil according to size of current, this paper tinsel-line mixed around structure can make full use of winding radially and axial dimension, reduce and adopt whole paper tinsel around mode or adopt cost waste and the wire turn that overall wire is brought around mode to arrange the inadequate drawback of space utilization because of winding.
Preferably, in the multistage coil 2 of described secondary winding, according to insulation and heat radiation requirement, can between every two sections of adjacent coils, be provided with air flue 3.
Preferably, described electric screen parts 4 are arranged on secondary winding 2 outsides, adopt electric screen parts 4 can eliminate from the various high frequency overvoltage of former limit winding and various high frequency lightning surge on secondary winding with the impact of rectifying component, thereby can improve the power supply quality of this voltage regulating transformer.
Preferably, described former limit winding 6 adopts paper tinsel around segmented layered structure, it is low that this paper tinsel has voltage between layers around segmented layered structure, the advantages such as Analysis of End Electric Field distortion is little, during design by choosing suitable longitudinal insulation and main insulation, can make high pressure winding obtain excellent lightning impulse resistant performance, the ampere-turn equilibrium of this voltage regulating transformer is more easily guaranteed, the short-circuit force of generation is much smaller than electromagnetic wire winding.In addition, because paper tinsel conductor in structure is wide and thin, reduced because of the winding supplementary load loss that laterally leakage field causes, better heat conductivility is provided again, made the inner hotspot's distribution of winding more even.
Preferably, described iron core 1 adopts cold rolling grain-oriented electrical silicon steel sheet to form by 45 ° three grades complete tiltedly stepping lamination mode stacks as permeability magnetic material, and iron core 1 adopts atresia colligation, draws screw rod, arm-tie clamping structure, can effectively reduce no-load loss and noise.
Below the technical parameter of voltage regulating transformer in the present embodiment:
1) rated capacity 6300kVA
2) the specified input line voltage 6kV in former limit
3) secondary is respectively organized specified output line voltage 1.65kV 3.3kV 6.6kV 10kV
(synchronization is only exported one group of voltage)
4) secondary is respectively organized output-current rating 2000A 1000A 500A 350A
5) overvoltage possesses 1.3 times of 3min overvoltage abilities
6) 1.2 times of 1min of overload capacity (overload frequency 60min/ time)
7) frequency range 38-72Hz meets the folded examination frequently of motor simultaneously
Test, when folded frequency is tested, input voltage dominant frequency
Rate is 50Hz, and side frequency is (38-42)
Hz, voltage magnitude is no more than rated voltage
6kV。
8) impedance voltage Ud% 7-9%
9) efficiency >=99%
10) < 10PC is put in office
11) former limit has 2 groups of taps and is respectively 77%, 100% rated voltage
12) connection type Y/Y
13) between the former limit of insulation request and each group of secondary, former/secondary with
Electricity isolation completely between iron core.
Embodiment 3:
In the present embodiment, the difference of voltage regulating transformer and embodiment 2 is: between iron core and secondary winding, be also provided with electric screen.Because the electrode shape of core exterior surface is for extremely inhomogeneous, add the field intensity that can improve this region after this electric screen.
In the present embodiment, other structures of voltage regulating transformer are all identical with embodiment 2, repeat no more here.
Embodiment 4:
In the present embodiment, the difference of voltage regulating transformer and embodiment 2 is: former limit winding is located on iron core, and secondary winding is located at winding outside, former limit.
In the present embodiment, other structures of voltage regulating transformer are all identical with embodiment 2, repeat no more here.
Embodiment 5:
In the present embodiment, the difference of voltage regulating transformer and embodiment 2 is: in this voltage regulating transformer, described former limit winding is provided with a plurality of shunting taps.
In the present embodiment, other structures of voltage regulating transformer are all identical with embodiment 2, repeat no more here.
Embodiment 6:
In the present embodiment, the difference of voltage regulating transformer and embodiment 2 is: this voltage regulating transformer is a kind of oil-filled transformer.
In the present embodiment, other structures of voltage regulating transformer are all identical with embodiment 2, repeat no more here.
Be understandable that, above execution mode is only used to principle of the present utility model is described and the illustrative embodiments that adopts, yet the utility model is not limited to this.For those skilled in the art, in the situation that not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection range of the present utility model.
Claims (10)
1. a voltage regulating transformer, comprises iron core, is wound on the Transformer Winding on iron core, and described Transformer Winding comprises former limit winding and secondary winding, it is characterized in that, described secondary winding adopts paper tinsel, line to mix around structure.
2. voltage regulating transformer according to claim 1, it is characterized in that, described secondary winding comprises multistage coil, and a part of coil in this multistage coil adopts paper tinsel around mode coiling, remaining a part of coil adopts the coiling of wire-wound mode, thereby forms described paper tinsel, line is mixed around structure.
3. voltage regulating transformer according to claim 2, it is characterized in that, in the multistage coil of described secondary winding, the coil of close former limit winding adopts paper tinsel around mode coiling, coil near iron core adopts the coiling of wire-wound mode, and other remaining coils adopt paper tinsel around mode or the coiling of wire-wound mode.
4. voltage regulating transformer according to claim 3, is characterized in that, described secondary winding is provided with a plurality of wiretappings that go out.
5. voltage regulating transformer according to claim 3, is characterized in that, in the multistage coil of described secondary winding, between every two sections of adjacent coils, is provided with air flue.
6. according to the voltage regulating transformer one of claim 1-5 Suo Shu, it is characterized in that, this voltage regulating transformer also comprises for avoiding from the high frequency overvoltage of former limit winding and high frequency lightning surge the hurtful electric screen parts of secondary winding, and it is outer and between secondary winding and former limit winding that described electric screen parts are located at described secondary winding.
7. according to the voltage regulating transformer one of claim 1-5 Suo Shu, it is characterized in that, described former limit winding is located at the outside of secondary winding, and described former limit winding adopts paper tinsel around segmented layered structure.
8. according to the voltage regulating transformer one of claim 1-5 Suo Shu, it is characterized in that, described iron core adopts cold rolling grain-oriented electrical silicon steel sheet to form by 45 ° three grades complete tiltedly stepping lamination mode stacks, and iron core adopts atresia colligation, draws screw rod, arm-tie clamping structure.
9. according to the voltage regulating transformer one of claim 1-5 Suo Shu, it is characterized in that, described former limit winding is high pressure winding, and secondary winding is low pressure winding, between described former limit winding and secondary winding, is also provided with insulating cylinder.
10. according to the voltage regulating transformer one of claim 1-5 Suo Shu, it is characterized in that, this voltage regulating transformer is dry-type transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320248451.8U CN203536195U (en) | 2013-05-08 | 2013-05-08 | Voltage regulating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320248451.8U CN203536195U (en) | 2013-05-08 | 2013-05-08 | Voltage regulating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536195U true CN203536195U (en) | 2014-04-09 |
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ID=50422376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320248451.8U Expired - Fee Related CN203536195U (en) | 2013-05-08 | 2013-05-08 | Voltage regulating transformer |
Country Status (1)
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| CN (1) | CN203536195U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118626A (en) * | 2015-09-10 | 2015-12-02 | 保定天威集团(江苏)五洲变压器有限公司 | Frequency conversion testing transformer |
| CN109427465A (en) * | 2017-08-28 | 2019-03-05 | 特变电工智能电气有限责任公司 | A tractor serves several purposes dry-type transformer |
| CN112444689A (en) * | 2019-08-29 | 2021-03-05 | 特变电工京津冀智能科技有限公司 | Temperature rise test method and device for transformer |
-
2013
- 2013-05-08 CN CN201320248451.8U patent/CN203536195U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118626A (en) * | 2015-09-10 | 2015-12-02 | 保定天威集团(江苏)五洲变压器有限公司 | Frequency conversion testing transformer |
| CN109427465A (en) * | 2017-08-28 | 2019-03-05 | 特变电工智能电气有限责任公司 | A tractor serves several purposes dry-type transformer |
| CN112444689A (en) * | 2019-08-29 | 2021-03-05 | 特变电工京津冀智能科技有限公司 | Temperature rise test method and device for transformer |
| CN112444689B (en) * | 2019-08-29 | 2022-11-29 | 特变电工京津冀智能科技有限公司 | Temperature rise test method and device for 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20160508 |