CN206758244U - Power transformer - Google Patents
Power transformer Download PDFInfo
- Publication number
- CN206758244U CN206758244U CN201720632479.XU CN201720632479U CN206758244U CN 206758244 U CN206758244 U CN 206758244U CN 201720632479 U CN201720632479 U CN 201720632479U CN 206758244 U CN206758244 U CN 206758244U
- Authority
- CN
- China
- Prior art keywords
- pressure winding
- high pressure
- line
- power transformer
- winding
- 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.)
- Expired - Fee Related
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Abstract
It the utility model is related to a kind of power transformer, including an iron core, first low pressure winding, a first high pressure winding, second low pressure winding and a second high pressure winding.Iron core has first principal post and second principal post.First low pressure winding is set in the outside of the first principal post.First high pressure winding is set in the outside of the first low pressure winding.Second low pressure winding is set in the outside of the second principal post.Second high pressure winding is set in the outside of the second low pressure winding.Wherein, the number of turn positioned at the line cake in the first high pressure winding stage casing is identical with the number of turn of the line cake positioned at its both ends.First high pressure winding is in parallel by intercolumniation line with the second high pressure winding.Intercolumniation line is formed at the middle part of the first high pressure winding and the second adjacent position of high pressure winding, and positioned at the cross section of the first principal post and the inner side of the outside common tangent of the cross section of the second principal post.Power transformer operation difficulty of the present utility model is low, and the security reliability of product is higher.
Description
Technical field
Electrical equipment is the utility model is related to, more particularly, to a kind of power transformer.
Background technology
Power transformer is electric power transmission, the visual plant of power consumer distribution.In general, power transformer be by around
Two or more coil windings composition on same iron core, be between winding by alternating magnetic field and in connection with and by
Electromagnetic induction principle works, to be used for transmitting electric energy, voltage of transformation and electric current in power system, to meet transmission of electricity and electricity consumption
It is required that.For double winding or three-winding transformer, high pressure winding and low pressure winding can be typically set in a core limb
On, for the ease of insulation, high pressure winding is generally placed in outermost layer, low pressure winding is placed in innermost layer.
In the prior art, it is necessary to entering line lead connection between the post parallel high voltage winding of Large Copacity two, it will usually lead
Ensconce inside normal work line cake, that is, the first principal post of middle part line cake than the adjacent offline few circle of cake, thus to the
The lead that two principal posts come leaves space.Two post lines, which can use, adds bag conducting paper or aluminium foil to be shielded, Huo Zhelian
Using structures such as shielding copper pipes outside line, insulating paper finally is wrapped in copper pipe surface, requirement of this structure to installation accuracy is high,
Operation difficulty is big.
Utility model content
The purpose of this utility model is to provide a kind of power transformer, and the intercolumniation between its two posts parallel high voltage winding connects
The insulation processing of line is simpler, and operation difficulty is low, and the security reliability of product is higher.This power transformer includes one
Iron core, first low pressure winding, a first high pressure winding, second low pressure winding and a second high pressure winding.
The iron core has first principal post and second principal post.First low pressure winding is set in the outer of first principal post
Side.The first high pressure winding is set in the outside of first low pressure winding.Second low pressure winding is set in described
The outside of two principal posts.The second high pressure winding is set in the outside of second low pressure winding.Wherein, it is high positioned at described first
Press the number of turn of the line cake in winding stage casing identical with the number of turn of the line cake positioned at its both ends.The first high pressure winding and described second
High pressure winding is in parallel by intercolumniation line.The intercolumniation line is formed at the first high pressure winding and the second high pressure winding is adjacent
The middle part of position is connect, and positioned at the interior of the outside common tangent of the cross section of first principal post and the cross section of second principal post
Side, to cause the processing of intercolumniation line simpler, electric insulation risk is smaller.
According to the one side of the utility model power transformer, the iron core is single-phase two posts return yoke formula iron core.
According to the another aspect of the utility model power transformer, the middle part of the first high pressure winding is provided with one first
Coil tap, the middle part of the second high pressure winding are provided with second coil tap.The first coil tap and described the
Two coil tap forms the intercolumniation line by way of being welded to connect, and can not only reduce operation difficulty, while can also
Ensure the security of product.
According to the another further aspect of the utility model power transformer, the outside bag of the intercolumniation line is provided with predetermined thickness
Insulating paper, effectively to reduce coil insulation risk.
According to the another aspect of the utility model power transformer, the insulating paper is conducting paper or aluminium foil.
According to the another aspect of the utility model power transformer, the line cake in the first high pressure winding stage casing has by shielding
The receiving gap that wire and insulated support are formed is covered, the lead of the intercolumniation line can pass through the receiving gap.
According to the another aspect of the utility model power transformer, power transformer also includes：Winding is pressed in one first,
It is set between first low pressure winding and the first high pressure winding；Winding is pressed in one second, it is set in described
Between second low pressure winding and the second high pressure winding, to meet different distribution demands.
Brief description of the drawings
The utility model is described in detail with reference to the accompanying drawings and detailed description.Wherein：
Fig. 1 is a kind of vertical section sectional view of the power transformer of embodiment of the utility model；
Fig. 2 be Fig. 1 in power transformer broken section enlarged diagram, basically illustrate two post parallel high voltage windings it
Between intercolumniation line structure.
Label declaration
Winding M1 is pressed in iron core C first
Winding M2 is pressed in first principal post C1 second
Second principal post C2 the first high pressure windings H1
First low pressure winding L1 the second high pressure windings H2
Second low pressure winding L2 intercolumniation lines H3
Embodiment
In order to which the technical characteristic of utility model, purpose and effect are more clearly understood, now control illustrates this
The embodiment of utility model, in the various figures identical label represent identical part.Representing the attached of each embodiment
In figure, two digits represent that structure is identical or structure is similar but function identical part after identical.
To make simplified form, the part related to the utility model is only schematically show in each figure, they are not
Represent its practical structures as product.In addition, so that simplified form readily appreciates, there is identical structure or work(in some figures
The part of energy, only symbolically depicts one of those, or only marked one of those.
Herein, " on ", " under ", "front", "rear", "left", "right" etc. are only used for representing the position between relevant portion
Relation, and they non-limiting absolute position.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than represent their significance level and order
Deng.
Herein, the limitation in " parallel ", " vertical " etc. and non-critical mathematics and/or geometry meaning, is also included
It will be appreciated by those skilled in the art that and manufacture or the error for the permission such as using.
Such as Fig. 1, it illustrates according to a kind of loop construction schematic diagram of the power transformer of embodiment of the utility model.
According to an embodiment of the present utility model, power transformer includes：One iron core C, a first low pressure winding L1,
One the first high pressure winding H1, a second low pressure winding L2 and a second high pressure winding H2.Iron core C has one first
A principal post C1 and second principal post C2.As a kind of specific embodiment, iron core C is single-phase two posts return yoke formula iron core.
In order to preferably meet insulating requirements, the first low pressure winding L1 is set in the first principal post C1 outside, and by
One high pressure winding H1 is set in the first low pressure winding L1 outside.Similarly, the second low pressure winding L2 is set in the second principal post C2
Outside, and the second high pressure winding H2 is set in the second low pressure winding L2 outside.By above-mentioned design, can not only save
Insulating materials, additionally it is possible to preferably meet the convenience of lead.
As another embodiment, power transformer also includes：Winding M1 is pressed in one first, it is low that it is set in first
Between pressure winding L1 and the first high pressure winding H1；Winding M2 is pressed in one second, it is set in the second low pressure winding L2 and second
Between high pressure winding H2, to meet different distribution demands.
It is worthy of note that unlike the prior art, the line cake of the present utility model for being located at the first high pressure winding H1 stage casings
The number of turn with positioned at its both ends line cake the number of turn it is identical.First high pressure winding H1 and the second high pressure winding H2 pass through intercolumniation line
H3 realizes in parallel.
Refering to Fig. 2, the structure of the intercolumniation line between two post parallel high voltage windings is which basically illustrated.It is worth what is pointed out
It is that intercolumniation line H3 of the present utility model is formed in the first high pressure winding H1 and the second adjacent positions of high pressure winding H2
Portion, and positioned at the first principal post C1 cross section and the inner side of the outside common tangent of the second principal post C2 cross section, i.e., position in window.By
Very low in line present position field strength herein, insulation risk is low, it is not necessary to additionally doses insulation casing, therefore the processing of intercolumniation line
Simpler, electric insulation risk is smaller.
First high pressure winding H1 middle part is provided with a first coil tap, and the second high pressure winding H2 middle part is provided with one
Second coil tap.First coil tap forms intercolumniation line H3 with the second coil tap by way of being welded to connect.In order to
Better assure that the reliability of insulation, intercolumniation line H3 outside insulating paper of the bag provided with predetermined thickness.Optionally, insulating paper
For conducting paper or aluminium foil.
It is preferred that the line cake in the first high pressure winding H1 stage casings has the receiving formed by shielded conductor and insulated support
Gap, intercolumniation line H3 lead, which can pass through, accommodates gap.Second high pressure winding H2 lead is by intercolumniation line H3 from
One high pressure winding H1 inside is passed into bushing.
According to the utility model, intercolumniation line can directly carry out soldering using coil original wire, then directly wrap
Certain thickness insulating paper, the processing of intercolumniation line is simple, reduces operation difficulty.Because link position is in window position
Put, safety, effectively reduces insulation risk, so as to be effectively improved the security of product on electric field.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical scheme in each embodiment may also be suitably combined to form people in the art
The other embodiment that member is appreciated that.
The a series of tool described in detail only for feasibility embodiment of the present utility model of those listed above
Body illustrates that they are simultaneously not used to limit the scope of protection of the utility model, all to be made without departing from the utility model skill spirit
Equivalent implementations or change should be included within the scope of protection of the utility model.
Claims (7)
1. power transformer, it is characterised in that including：
One iron core (C), it has first principal post (C1) and second principal post (C2)；
One the first low pressure winding (L1), it is set in the outside of first principal post (C1)；
One the first high pressure winding (H1), it is set in the outside of first low pressure winding (L1)；
One the second low pressure winding (L2), it is set in the outside of second principal post (C2)；
One the second high pressure winding (H2), it is set in the outside of second low pressure winding (L2)；
Wherein, positioned at the first high pressure winding (H1) stage casing line cake the number of turn and positioned at its both ends line cake number of turn phase
Together, the first high pressure winding (H1) is in parallel by intercolumniation line (H3) with the second high pressure winding (H2)；The intercolumniation connects
Line (H3) is formed at the middle part of the first high pressure winding (H1) and second high pressure winding (H2) adjacent position, and positioned at described
The inner side of the outside common tangent of the cross section of first principal post (C1) and the cross section of second principal post (C2).
2. power transformer as claimed in claim 1, it is characterised in that the iron core (C) is single-phase two posts return yoke formula iron core.
3. power transformer as claimed in claim 1, it is characterised in that the middle part of the first high pressure winding (H1) is provided with one
Individual first coil tap, the middle part of the second high pressure winding (H2) are provided with second coil tap, and the first coil is taken out
Head forms the intercolumniation line (H3) with second coil tap by way of being welded to connect.
4. power transformer as claimed in claim 3, it is characterised in that the outside bag of the intercolumniation line (H3) is provided with predetermined
The insulating paper of thickness.
5. power transformer as claimed in claim 4, it is characterised in that the insulating paper is conducting paper or aluminium foil.
6. power transformer as claimed in claim 1, it is characterised in that the line cake tool in the first high pressure winding (H1) stage casing
There is the receiving gap formed by shielded conductor and insulated support, the lead of the intercolumniation line (H3) can pass through the receiving
Gap.
7. such as the power transformer any one of claim 1-6, it is characterised in that also include
Winding (M1) is pressed in one first, its be set in first low pressure winding (L1) and the first high pressure winding (H1) it
Between；
Winding (M2) is pressed in one second, its be set in second low pressure winding (L2) and the second high pressure winding (H2) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632479.XU CN206758244U (en) | 2017-06-02 | 2017-06-02 | Power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720632479.XU CN206758244U (en) | 2017-06-02 | 2017-06-02 | Power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206758244U true CN206758244U (en) | 2017-12-15 |
Family
ID=60620850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720632479.XU Expired - Fee Related CN206758244U (en) | 2017-06-02 | 2017-06-02 | Power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206758244U (en) |
-
2017
- 2017-06-02 CN CN201720632479.XU patent/CN206758244U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |