CN204348482U - A kind of transformer winding structure and rectifier transformer - Google Patents
A kind of transformer winding structure and rectifier transformer Download PDFInfo
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- CN204348482U CN204348482U CN201420344049.4U CN201420344049U CN204348482U CN 204348482 U CN204348482 U CN 204348482U CN 201420344049 U CN201420344049 U CN 201420344049U CN 204348482 U CN204348482 U CN 204348482U
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Abstract
The utility model discloses a kind of transformer winding structure and rectifier transformer, this transformer winding structure comprises high pressure winding, described high pressure winding comprises the 2n section winding distributed vertically, wherein n be greater than 1 integer, described 2n section winding is symmetrically distributed in the first half and the Lower Half of high pressure winding, in the n section winding of the first half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the first shunting tap, the first shunting tap on these adjacent 2 sections of windings can be interconnected; In the n section winding of the Lower Half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the second shunting tap, the second shunting tap on these adjacent 2 sections of windings can be interconnected.This transformer winding structure effectively can improve electric property and the power supply reliability of the large transformer of shunting voltage regulating span.
Description
Technical field
The utility model belongs to technical field of transformer manufacturing, relate to a kind of transformer winding structure and rectifier transformer, particularly a kind of shunting voltage regulating span large (tapping range reach ± 10%) transformer winding structure and comprise the rectifier transformer of this winding construction.
Background technology
At present, what be that 35KV multiplex SVG many power cells rectifier transformer of powering adopts to electric pressure in industrial production is common rectifier transformer, as shown in Fig. 1 (a), due to the shunting voltage regulating span large (tapping range is ± 10%) of this transformer, Transformer Winding Problems existing is as follows:
1, shunting tap 1 all concentrates in two fragment position in the middle part of high pressure winding, and voltage gradient is large, thus causes insulation hidden danger, and partial discharge quantity is high;
2, because range of regulation span is large, shunting tap (shunting tap A4 and A5 in such as Fig. 1 (a)) need from almost drawing near the position of winding inner diameter, namely shunting tap is drawn more difficult, and and insulation between other layer conductor need carry out reinforcement and process, this adds increased the operation easier in winding process;
3, when minus tapping (-10%), namely when shunting tap A4 and the A5 in Fig. 1 (b) connects, now the idle number of turn of winding is more, thus form very large leakage field space, cause serious horizontal leakage field and ampere-turn uneven, cause the problems such as high pressure winding local overheating, effectively service life shortening.
Utility model content
Technical problem to be solved in the utility model is for above shortcomings in prior art, there is provided a kind of transformer winding structure, this transformer winding structure is easy to make and effectively can improve electric property and the power supply reliability of the large transformer of shunting voltage regulating span.
The technical scheme that solution the utility model technical problem adopts is that this transformer winding structure comprises high pressure winding, wherein, described high pressure winding comprises the 2n section winding distributed vertically, wherein n be greater than 1 integer, described 2n section winding is symmetrically distributed in the first half and the Lower Half of high pressure winding, in the n section winding of the first half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the first shunting tap, the first shunting tap on these adjacent 2 sections of windings can be interconnected; In the n section winding of the Lower Half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the second shunting tap, the second shunting tap on these adjacent 2 sections of windings can be interconnected.
Preferably, in the n section winding of the first half of high pressure winding, the first shunting tap on described adjacent 2 sections of windings is connected by the first tap connecting plate; In the n section winding of the Lower Half of high pressure winding, the second shunting tap on described adjacent 2 sections of windings is connected by the second tap connecting plate.
Preferably, described first shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer, and the second shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer.
Further preferably, the distance of described first shunting tap and high pressure winding outer surface layer is less than the distance of the first shunting tap and high pressure winding interior surface layers; The distance of the second shunting tap and high pressure winding outer surface layer is less than the distance of the second shunting tap and high pressure winding interior surface layers.
Preferably, the positional symmetry of described first shunting tap and the second shunting tap is arranged.
Preferably, in described 2n section winding, every section of winding comprises 2 sub-windings, and described 2 sub-windings are connected in series.
Preferably, described high pressure winding comprises the 4 sections of windings distributed vertically, these 4 sections of windings are symmetricly set on the first half and the Lower Half of high pressure winding between two, in 2 sections of windings of the first half of high pressure winding, every section of winding is provided with the first shunting tap, the first shunting tap on these 2 sections of windings can be interconnected; In 2 sections of windings of the Lower Half of high pressure winding, every section of winding is provided with the second shunting tap, the second shunting tap on these 2 sections of windings can be interconnected.
The utility model also provides a kind of rectifier transformer, and it comprises above-mentioned transformer winding structure.
The utility model transformer winding structure by by shunting tap by the two sections of windings concentrated in the middle part of high pressure winding change into be arranged in high pressure winding the first half and Lower Half on, concentrate in the middle part of high pressure winding by the former pressure regulation number of turn and change the first half and the Lower Half that the pressure regulation number of turn is distributed in high pressure winding into, and it respectively bears the pressure regulation number of turn of 50%, in the first half of such high pressure winding and the winding of Lower Half, the position making shunting tap can be arranged near high pressure winding outer surface layer is drawn, thus can effectively utilize winding height space, reasonably improve tap region voltage gradient large, there is the shortcoming such as serious horizontal leakage field and ampere-turn imbalance, and very large leakage field space can not be formed.Like this, no matter high pressure winding is be operated in which point to connect the electromagnetism ampere-turn equilibrium that can obtain the best to greatest extent, greatly reduce axial electric power during transformer short-circuit, improve the anti-sudden short circuit ability of Transformer Winding, avoid high pressure winding local overheating, and effectively can improve the service life of transformer.
The utility model transformer winding structure have advantages of simple, cost rationally, the advantage such as not only economic and practical but also convenient, flexible, be specially adapted in the Transformer Winding of shunting voltage regulating span large (tapping range reach ± 10%).
Accompanying drawing explanation
The schematic diagram of transformer winding structure in the rectifier transformer that Fig. 1 (a) is prior art;
Fig. 1 (b) is the working condition table of shunting tap in Fig. 1 (a) when different gear;
Fig. 2 (a) is the schematic diagram of transformer winding structure in the utility model embodiment 1;
Fig. 2 (b) is the first shunting tap in Fig. 2 (a) and the second shunting tap working condition table when different gear.
In figure: 1-shunting tap; 2-tap connecting plate; 11-first shunting tap; 12-first tap connecting plate; 13-second shunting tap; 14-second tap connecting plate.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, carry out clear, complete description to the technical scheme in the utility model, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
The utility model provides a kind of transformer winding structure, comprise high pressure winding, described high pressure winding comprises the 2n section winding distributed vertically, wherein n be greater than 1 integer, described 2n section winding is symmetrically distributed in the first half and the Lower Half of high pressure winding, in the n section winding of the first half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the first shunting tap, the first shunting tap on these adjacent 2 sections of windings can be interconnected; In the n section winding of the Lower Half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the second shunting tap, the second shunting tap on these adjacent 2 sections of windings can be interconnected.
Preferably, in the n section winding of the first half of high pressure winding, the first shunting tap on described adjacent 2 sections of windings is connected by the first tap connecting plate; In the n section winding of the Lower Half of high pressure winding, the second shunting tap on described adjacent 2 sections of windings is connected by the second tap connecting plate.
Preferably, described first shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer, and described second shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer.
A kind of rectifier transformer, it comprises above-mentioned transformer winding structure.
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
The present embodiment provides the transformer of a kind of shunting voltage regulating span larger (tapping range reach ± 10%), its specifically a kind of electric pressure be the rectifier transformer that the many power cells of 35KV multiplex SVG are powered, this rectifier transformer comprises transformer winding structure.
As shown in Fig. 2 (a), in described rectifier transformer, transformer winding structure comprises three-phase high-voltage winding, is described in the present embodiment with wherein arbitrary phase high pressure winding citing, the another structure of two-phase high pressure winding and the similar of this high pressure winding, it is no longer repeated.
In described high pressure winding, in Fig. 2 (a), A, X represent head end and the tail end of this high pressure winding respectively.Described high pressure winding comprises the 2n section winding distributed vertically, and namely preferred n=2 includes 4 sections of windings.These 4 sections of windings are symmetricly set on the first half and the Lower Half of high pressure winding between two about high pressure winding height center.
Preferably, every section of winding comprises 2 sub-windings be connected in series, described 2 sub-windings around to all identical with structure.
In 2 sections of windings of the first half of high pressure winding, every section of winding is provided with the first shunting tap 11 (such as A2 ~ A5), the first shunting tap on these 2 sections of windings is interconnected preferably by the first tap connecting plate 12; In 2 sections of windings of the Lower Half of high pressure winding, every section of winding is provided with the second shunting tap 13 (such as A6 ~ A9), the second shunting tap on these 2 sections of windings is interconnected preferably by the second tap connecting plate 14.Described first tap connecting plate 12 and the second tap connecting plate 14 regulate for tap and use.That is, shunting tap is arranged on the first half of high pressure winding and four sections of windings of Lower Half, and namely shunting tap is on average arranged on high pressure winding axially.
Preferably, the positional symmetry of described first shunting tap 11 and the second shunting tap 13 is arranged.
Preferred further, the first shunting tap 11 is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer, and the second shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer.
Further, the first shunting tap 11 and the distance of high pressure winding outer surface layer (layer be namely connected with head end or the tail end of high pressure winding) are less than the distance of the first shunting tap and high pressure winding interior surface layers; Second shunting tap 13 and the distance of high pressure winding outer surface layer are less than the distance of the second shunting tap and high pressure winding interior surface layers.
Particularly, in the present embodiment, high pressure winding has eleventh floor, and wherein the first shunting tap A2 and A3 is arranged on high pressure winding outer surface layer (i.e. eleventh floor), and the first shunting tap A4 and A5 is arranged on the 8th layer of high pressure winding; Second shunting tap A6 and A7 is arranged on high pressure winding outer surface layer (i.e. eleventh floor), and the second shunting tap A8 and A9 is arranged on the 8th layer of high pressure winding.
As shown in Fig. 2 (b), symbol "-" wherein represents the connection between electrical terminals, when tapping gear is I shelves, namely tap be+10% powered time, for the first half of high pressure winding, the first shunting tap A2 and A3 is connected by the first tap connecting plate, and namely A2-A3 is for being fixedly connected with; For the Lower Half of high pressure winding, the second shunting tap A6 and A7 is connected by the second tap connecting plate, and namely A6-A7 is for being fixedly connected with; When tapping gear is II shelves, namely tap be 0% (i.e. rated voltage shelves) powered time, for the first half of high pressure winding, the first shunting tap A3 and A4 by first tap connecting plate connect, namely A3-A4 is for being fixedly connected with; For the Lower Half of high pressure winding, the second shunting tap A7 and A8 is connected by the second tap connecting plate, and namely A7-A8 is for being fixedly connected with; When tapping gear is III shelves, namely tap be-10% powered time, for the first half of high pressure winding, the first shunting tap A4 and A5 by first tap connecting plate connect, namely A4-A5 is for being fixedly connected with; For the Lower Half of high pressure winding, the second shunting tap A8 and A9 is connected by the second tap connecting plate, and namely A8-A9 is for being fixedly connected with.
The utility model transformer winding structure by shunting tap is arranged on about winding height center two, two symmetry eight sub-windings, up and down each two sections amount on four sections of windings, the pressure regulation number of turn is made to be distributed in the first half and the Lower Half of high pressure winding, namely the pressure regulation number of turn of 50% is respectively born, shunting tap can be set to draw from by winding outer surface layer, thus effectively utilize winding height space, reasonably improve tap region voltage gradient large, there is serious horizontal leakage field and the shortcoming such as ampere-turn is uneven, improve the anti-sudden short circuit ability of high pressure winding.
Embodiment 2:
The present embodiment is from the difference of Transformer Winding mechanism in embodiment 1: the hop count of high pressure winding is different.
In the present embodiment, high pressure winding comprises the 2n section winding distributed vertically, wherein n=4, namely this high pressure winding comprises 8 sections of windings, these 8 sections of windings are symmetrically distributed in the first half and the Lower Half of high pressure winding, in 4 sections of windings of the first half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the first shunting tap, the first shunting tap on these adjacent 2 sections of windings can be interconnected by the first tap connecting plate; In 4 sections of windings of the Lower Half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the second shunting tap, the second shunting tap on these adjacent 2 sections of windings can be interconnected by the second tap connecting plate.
Specifically, in the present embodiment, in the first half of high pressure winding, 2 sections of windings that the axial height of winding is the highest are provided with the first shunting tap; In the Lower Half of high pressure winding, 2 sections of windings that the axial height of winding is minimum are provided with the second shunting tap.
In the present embodiment, other structures of transformer winding structure are all identical with embodiment 1, repeat no more here.
Be understandable that, the illustrative embodiments that above execution mode is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when 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 (8)
1. a transformer winding structure, comprise high pressure winding, it is characterized in that, described high pressure winding comprises the 2n section winding distributed vertically, wherein n be greater than 1 integer, described 2n section winding is symmetrically distributed in the first half and the Lower Half of high pressure winding, in the n section winding of the first half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the first shunting tap, and the first shunting tap on these adjacent 2 sections of windings can be interconnected; In the n section winding of the Lower Half of high pressure winding, arbitrary neighborhood 2 sections of windings are provided with the second shunting tap, the second shunting tap on these adjacent 2 sections of windings can be interconnected.
2. transformer winding structure as claimed in claim 1, is characterized in that, in the n section winding of the first half of high pressure winding, the first shunting tap on described adjacent 2 sections of windings is connected by the first tap connecting plate; In the n section winding of the Lower Half of high pressure winding, the second shunting tap on described adjacent 2 sections of windings is connected by the second tap connecting plate.
3. transformer winding structure as claimed in claim 1, it is characterized in that, described first shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer, and the second shunting tap is arranged on the position and/or high pressure winding outer surface layer of high pressure winding outer surface layer.
4. transformer winding structure as claimed in claim 3, it is characterized in that, the distance of described first shunting tap and high pressure winding outer surface layer is less than the distance of the first shunting tap and high pressure winding interior surface layers; The distance of the second shunting tap and high pressure winding outer surface layer is less than the distance of the second shunting tap and high pressure winding interior surface layers.
5. the transformer winding structure as described in any one of Claims 1 to 4, is characterized in that, the positional symmetry of described first shunting tap and the second shunting tap is arranged.
6. the transformer winding structure as described in any one of Claims 1 to 5, is characterized in that, in described 2n section winding, every section of winding comprises 2 sub-windings, and described 2 sub-windings are connected in series.
7. the transformer winding structure as described in any one of Claims 1 to 5, it is characterized in that, described high pressure winding comprises the 4 sections of windings distributed vertically, these 4 sections of windings are symmetricly set on the first half and the Lower Half of high pressure winding between two, in 2 sections of windings of the first half of high pressure winding, every section of winding is provided with the first shunting tap, the first shunting tap on these 2 sections of windings can be interconnected; In 2 sections of windings of the Lower Half of high pressure winding, every section of winding is provided with the second shunting tap, the second shunting tap on these 2 sections of windings can be interconnected.
8. a rectifier transformer, is characterized in that, comprises the transformer winding structure described in any one of claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344049.4U CN204348482U (en) | 2014-06-25 | 2014-06-25 | A kind of transformer winding structure and rectifier transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344049.4U CN204348482U (en) | 2014-06-25 | 2014-06-25 | A kind of transformer winding structure and rectifier transformer |
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| CN204348482U true CN204348482U (en) | 2015-05-20 |
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| CN201420344049.4U Active CN204348482U (en) | 2014-06-25 | 2014-06-25 | A kind of transformer winding structure and rectifier transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504096A (en) * | 2018-05-16 | 2019-11-26 | 宁波新州焊接设备有限公司 | A kind of transformer |
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2014
- 2014-06-25 CN CN201420344049.4U patent/CN204348482U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504096A (en) * | 2018-05-16 | 2019-11-26 | 宁波新州焊接设备有限公司 | A kind of transformer |
| CN110504096B (en) * | 2018-05-16 | 2024-04-12 | 宁波新州焊接设备有限公司 | Transformer |
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