CN202473546U - Low-voltage lead structure of three-dimensional wound core transformer - Google Patents
Low-voltage lead structure of three-dimensional wound core transformer Download PDFInfo
- Publication number
- CN202473546U CN202473546U CN2012200262918U CN201220026291U CN202473546U CN 202473546 U CN202473546 U CN 202473546U CN 2012200262918 U CN2012200262918 U CN 2012200262918U CN 201220026291 U CN201220026291 U CN 201220026291U CN 202473546 U CN202473546 U CN 202473546U
- Authority
- CN
- China
- Prior art keywords
- head
- low
- voltage coil
- phase
- lift
- 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 - Lifetime
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a low-voltage lead structure of a three-dimensional wound core transformer. The low-voltage lead structure comprises an a-phase low-voltage coil, a b-phase low-voltage coil and a c-phase low-voltage coil; a star (y or y0) connection method is adopted by a low-voltage lead; and both the length of the last turn of the b-phase low-voltage coil and the length of the last turn of the c-phase low-voltage coil are smaller than the length of the last turn of the a-phase low-voltage coil. Since the last turns of the b-phase low-voltage coil and the c-phase low-voltage coil penetrate through a core window, the output voltage of the b-phase low-voltage coil and the c-phase low-voltage coil is not changed, i.e., the voltage of the b-phase low-voltage coil and the c-phase low-voltage coil is equal to that of the a-phase low-voltage coil. The low-voltage lead structure of the three-dimensional wound core transformer is material-saving and low in loss and can realize three-phase resistance balance.
Description
Technical field
The utility model relates to the electric equipment field, particularly a kind of low-voltage lead structure of three dimensional wound core transformer.
Background technology
Loss is few, noise is low because the three dimensional wound core transformer has, the advantage of three-phase heat radiation balance, has become the development trend of small transformers in China at present.But; Because a, b, c three-phase low-voltage coil triangularity are placed; And GB regulation transformer high-voltage to lift one's head with lifting one's head with low pressure be to place corresponding side (can not place homonymy); If lift one's head in the top of a, b, c three-phase low-voltage coil and end is lifted one's head all in same position, this just make wherein one mutually or two phase terminals be longer than in addition two mutually or phases; This can give the complicated and resistance unbalance property of lead-in wire connecting band of transformer.
Chinese patent document CN 201199479Y discloses in the three dimensional wound core dry-type transformer pin configuration: lift one's head and be respectively a, b, c in the top of a, b, c phase low-voltage coil, and end is lifted one's head and is respectively x, y, z; A, the same position of x on a phase low-voltage coil, b, the same position of y on b phase low-voltage coil, c, the same position of z on the c low-voltage coil.B lifts one's head distance and the z of binding post [mark 32 among Chinese patent document CN 201199479Y Fig. 3] to b phase top all bigger to the distance of three-phase terminal [mark 34 among Chinese patent document CN 201199479Y Fig. 3]; In order to make the three-phase resistance balance, producer's following way of having to take: (1) lengthening a and a top mutually lift one's head lead-in wire, c and c phase top between lead-in wire, x and three-phase terminal between the binding post [mark 33 among Chinese patent document CN 201199479Y Fig. 3] and lift one's head lead-in wire and the lead-in wire between z and three-phase terminal between the binding post [mark 31 among Chinese patent document CN 201199479Y Fig. 3]; (2) strengthen b and lift one's head lead-in wire cross section and the z of lead-in wire of binding post to b phase top to the lead-in wire cross section of the sub lead-in wire of three-phase terminal; This can cause the product cost to increase, and loss also increases thereupon.
The utility model content
The utility model has overcome above-mentioned shortcoming, provides a kind of and has saved material, loss is low and the low-voltage lead structure of the three dimensional wound core transformer of three-phase resistance balance.
The technical scheme that its technical problem of the utility model solution is taked is: a kind of low-voltage lead structure of three dimensional wound core transformer, comprise a phase low-voltage coil, b phase low-voltage coil and c low-voltage coil mutually, and low-voltage lead is star (y or y
0) connect method; The end of b phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of b phase low-voltage coil lifting one's head greater than 0 °, smaller or equal to 300 °.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the end of c phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of c phase low-voltage coil lifting one's head greater than 0 °, smaller or equal to 180 °.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the end of c phase low-voltage coil lift one's head the angle of lifting one's head along the top of the leading c phase of coiling direction low-voltage coil greater than 0 °, smaller or equal to 60 °.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the end of a phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of a phase low-voltage coil lifting one's head greater than 0 °, smaller or equal to 60 °.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the end of a phase low-voltage coil lift one's head the angle of lifting one's head along the top of the leading a phase of coiling direction low-voltage coil greater than 0 °, smaller or equal to 180 °.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the axis of a phase low-voltage coil and the c axis of low-voltage coil mutually all are positioned on the same plane M, and the axis of b phase low-voltage coil is positioned on the plane N vertical with plane M; Lift one's head and the terminal both sides that lay respectively at plane N of lifting one's head in the top of b phase low-voltage coil.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the top of b phase low-voltage coil lift one's head with c mutually low-voltage coil all be positioned at the left side of plane N, the end of b phase low-voltage coil lift one's head with a mutually low-voltage coil all be positioned at the right side of plane N.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the circle of last circle of b phase low-voltage coil long with the c circle appearance etc. of last circle of low-voltage coil mutually.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer, the end of b phase low-voltage coil lift one's head that to lag behind the angle of the top of b phase low-voltage coil lifting one's head along the coiling direction be 120 °; The end of c phase low-voltage coil lifts one's head that to lag behind the angle of the top of c phase low-voltage coil lifting one's head along the coiling direction be 120 °; The circle of last circle of b phase low-voltage coil long with c mutually the circle of last circle of low-voltage coil grow all long less than the circle of last circle of a phase low-voltage coil.This structure makes things convenient for outlet, and saves wire length, kills two birds with one stone.
The low-voltage lead structure of above-mentioned a kind of three dimensional wound core transformer; The end of a phase low-voltage coil lift one's head through a mutually end lift one's head lead-in wire and lift one's head binding post with the three-phase end and be connected; The end of b phase low-voltage coil lift one's head through b mutually end lift one's head lead-in wire and lift one's head binding post with the three-phase end and be connected, the end of c phase low-voltage coil lift one's head through c mutually end lift one's head to go between and lift one's head binding post with the three-phase end and be connected; Lift one's head and lift one's head lead-in wire and a through a phase top and lift one's head binding post connection in top mutually in the top of a phase low-voltage coil; Lifting one's head and lift one's head lead-in wire and b through b phase top and lift one's head binding post and connect in top mutually in the top of b phase low-voltage coil, lifts one's head and lift one's head lead-in wire and c through c phase top and lift one's head the binding post connection in top mutually in the top of c phase low-voltage coil; B phase top lift one's head the terminal mutually resistance of lifting one's head lead-in wire of the resistance, b of lead-in wire and b mutually the resistance sum of low-voltage coil equal c phase top and lift one's head the terminal mutually resistance of lifting one's head lead-in wire of resistance, the c of lead-in wire and the c resistance sum of low-voltage coil mutually, and equal a phase top and lift one's head the terminal mutually resistance of lifting one's head lead-in wire of resistance, a of lead-in wire and a resistance sum of low-voltage coil mutually; C end mutually lifts one's head lead-in wire and comprises that first lead-in wire goes between with second; One end and the c of first lead-in wire end of low-voltage coil mutually lifts one's head connection; The other end is connected at an end of the axis place of c phase low-voltage coil and second lead-in wire, and the other end of second lead-in wire belongs to plane M to the extension of a phase low-voltage coil and lift one's head binding post through common lead and three-phase end and be connected along the axis of the axis of a phase low-voltage coil and c phase low-voltage coil; B is terminal mutually lift one's head lead-in wire an end and b mutually the end of low-voltage coil lift one's head connection, the other end and second goes between and is connected; A is terminal mutually lift one's head lead-in wire an end and a mutually the end of low-voltage coil lift one's head connection, the other end and second goes between and is connected.Take this connected mode, can be easily realize the purpose of three-phase resistance balance through regulating terminal mutually terminal mutually lead-in wire and the tie point position of second lead-in wire of lifting one's head of lead-in wire and/or a of lifting one's head of b.
The utility model utilization changes the position of lifting one's head of three-phase (a, b, c) low-voltage coil, has simplified lead-in wire dexterously and has arranged, and reach materials and reduce, and the purpose of three-phase coil resistance balance.Not only performance meets the demands, and has also reduced loss.Thereby realized the saving material, loss is low, the utility model purpose of three-phase resistance balance.
Description of drawings
Fig. 1 is the structural representation of the low-voltage lead structure of the utility model three dimensional wound core transformer;
Fig. 2 is the low-voltage coil wiring schematic diagram of the low-voltage lead structure of the utility model three dimensional wound core transformer;
Fig. 3 is the plan structure sketch map of the low-voltage lead structure of the utility model three dimensional wound core transformer shown in Figure 1.
1-three-phase end is lifted one's head binding post, and 2-a end mutually lifts one's head lead-in wire, and 3-b end mutually lifts one's head lead-in wire; 4-c end mutually lifts one's head lead-in wire, and lead-in wire is lifted one's head at 5-a phase top, and lead-in wire is lifted one's head at 6-b phase top; Lead-in wire is lifted one's head at 7-c phase top; Binding post is lifted one's head at 8-a phase top, and binding post is lifted one's head at 9-b phase top, and binding post is lifted one's head at 10-c phase top.
Embodiment
To shown in Figure 3, the low-voltage lead structure of present embodiment three dimensional wound core transformer comprises a phase low-voltage coil, b phase low-voltage coil and c low-voltage coil mutually like Fig. 1, and low-voltage lead is star (y or y
0) connect method.The end of b phase low-voltage coil lifts one's head that to lag behind the angle of the top of b phase low-voltage coil lifting one's head along the coiling direction be 120 °; The end of c phase low-voltage coil lifts one's head that to lag behind the angle of the top of c phase low-voltage coil lifting one's head along the coiling direction be 120 °; Lift one's head and lift one's head at same position with end in the top of a phase low-voltage coil; Make the circle of last circle of b phase low-voltage coil long with the c circle appearance etc. of last circle of low-voltage coil and long mutually less than the circle of last circle of a phase low-voltage coil.The axis of a phase low-voltage coil and the c axis of low-voltage coil mutually all are positioned on the same plane M, and the axis of b phase low-voltage coil is positioned on the plane N vertical with plane M; The top of b phase low-voltage coil lift one's head with c mutually low-voltage coil all be positioned at the left side of plane N, the end of b phase low-voltage coil lift one's head with a mutually low-voltage coil all be positioned at the right side of plane N.
In the present embodiment; The end of a phase low-voltage coil lift one's head through a mutually end lift one's head lead-in wire 2 and lift one's head binding post 1 with the three-phase end and be connected; The end of b phase low-voltage coil lift one's head through b mutually end lift one's head lead-in wire 3 and lift one's head binding post 1 with the three-phase end and be connected, the end of c phase low-voltage coil lift one's head through c mutually end lift one's head to go between and 4 lift one's head binding post 1 with the three-phase end and be connected; Lift one's head and lift one's head lead-in wire 5 and a through a phase top and lift one's head binding post 8 connections in top mutually in the top of a phase low-voltage coil; Lifting one's head and lift one's head lead-in wire 6 and b through b phase top and lift one's head binding post 9 and connect in top mutually in the top of b phase low-voltage coil, lifts one's head and lift one's head lead-in wire 7 and c through c phase top and lift one's head binding post 10 connections in top mutually in the top of c phase low-voltage coil; B phase top lift one's head the terminal mutually resistance of lifting one's head lead-in wire 3 of lead-in wire 6 resistance, b and b mutually the resistance sum of low-voltage coil equal c phase top and lift one's head the terminal mutually resistance of lifting one's head lead-in wire 4 of resistance, the c of lead-in wire 7 and the c resistance sum of low-voltage coil mutually, and equal a phase top and lift one's head the terminal mutually resistance of lifting one's head lead-in wire 2 of resistance, a of lead-in wire 5 and a resistance sum of low-voltage coil mutually.C in present embodiment end mutually lifts one's head lead-in wire 4 and comprises that first lead-in wire goes between with second; One end and the c of first lead-in wire end of low-voltage coil mutually lifts one's head connection; The other end is connected at an end of the axis place of c phase low-voltage coil and second lead-in wire, and the other end of second lead-in wire belongs to plane M to the extension of a phase low-voltage coil and lift one's head binding post 1 through common lead and three-phase end and be connected along the axis of the axis of a phase low-voltage coil and c phase low-voltage coil; B is terminal mutually lift one's head lead-in wire 3 an end and b mutually the end of low-voltage coil lift one's head connection, the other end and second goes between and is connected; A is terminal mutually lift one's head lead-in wire 2 an end and a mutually the end of low-voltage coil lift one's head connection, the other end and second goes between and is connected.Take this connected mode, can be easily b is terminal mutually to lift one's head that lead-in wire 3 and/or a are terminal mutually to lift one's head tie point position that lead-in wire 2 and second goes between and realize the purpose of three-phase resistance balance through regulating.
Because transformer appearance not of uniform size, and the lateral separation between the low pressure outlet terminal has difference, thus will be when selecting the lead-in wire copper bar in implementation process the calculated resistance balance.As shown in Figure 3, b phase low-voltage coil and c last circle of low-voltage coil mutually are 2/3rds circle length, that is: b phase low-voltage coil and c mutually the internal resistance of low-voltage coil equate; And b phase top lift one's head lead-in wire 6 and b mutually end lift one's head lead-in wire 3 length sums greater than c phase top lift one's head lead-in wire 7 and c mutually end lift one's head the 4 length sums that go between; Therefore with c mutually end lift one's head that lead-in wire 4 copper bar areas suitably reduce to reach b, the c phase resistance equates.A phase top lift one's head lead-in wire 5 and a mutually end lift one's head lead-in wire 2 length sums less than c phase top lift one's head lead-in wire 7 and c mutually end lift one's head the 4 length sums that go between; But last circle of last turn ratio of a phase low-voltage coil b phase low-voltage coil and c be all many 1/3rd circle length of last circle of low-voltage coil mutually; Through regulating the terminal mutually area size of lifting one's head lead-in wire 2 of a, can reach a and equate with b, c phase resistance.Therefore, the low-voltage lead structure of present embodiment is lifted one's head terminal mutually terminal mutually lead-in wire and the c of lifting one's head of lead-in wire, c that lift one's head of lead-in wire, a and is lifted one's head to go between and realize the resistance balance of three-phase in top mutually through bending a phase top repeatedly need be in Chinese patent document CN 201199479Y.Because lifting one's head, the top of b phase low-voltage coil lifts one's head respectively in b low-voltage coil both sides mutually with end; And last circle of b phase low-voltage coil is 2/3rds circle length (that is: few 1/3rd circle length); Make the top of b phase low-voltage coil lift one's head and lift one's head the distance of binding post 9 and diminish relatively in top mutually that the end of b phase low-voltage coil is lifted one's head and lifted one's head the distance of binding post 1 with the three-phase end and also diminish relatively with b.So this implements the disclosed low-voltage lead structure of relative Chinese patent document CN 201199479Y economical with materials, reduce the product cost, and reduce the wastage.
The utility model low-voltage lead structure is applicable to the winding of three dimensional wound core dry-type transformer and oil-immersed type transformer; Lift one's head mode (like Chinese patent document CN201199479Y) with respect to traditional low pressure; A, x lift one's head invariant position, thereby their low-voltage lead length is all lacked; The position of b, y changes, because y has passed window unshakable in one's determination, can guarantee that output voltage is constant; And actual last circle is few around [being that last circle is around lift one's head the position to top; A discontented circle is as around 2/3rds circle length], moreover b, y go out, and the distance to a, c phase shortens relatively originally to some extent in b phase both sides; This just makes b phase top lift one's head to lift one's head total length and lacked (being resistance) with terminal, to reach the purpose (being that the two resistance is tending towards equal) that approaches a phase length.Last circle of c phase low-voltage coil is few around [be last circle not around lift one's head the position to top, be discontented with a circle, as around 2/3rds circle length], makes c phase length approach a phase length (being that the two resistance is tending towards equal).This consumption that has reduced b, c phase winding material can also reach the purpose of three-phase equilibrium, thereby obtained the technique effect that kills two birds with one stone.
In addition, the end of b phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of b phase low-voltage coil lifting one's head also can for greater than 0 °, smaller or equal to other numerical value between 300 °; The end of c phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of c phase low-voltage coil lifting one's head also can for greater than 0 °, smaller or equal to other numerical value between 180 °.All can realize saving material, loss is low, and the utility model purpose of three-phase resistance balance.
In addition; The end of c phase low-voltage coil is lifted one's head and also can be lifted one's head along the top of the leading c phase of coiling direction low-voltage coil [is that last circle is around expiring continued around a segment distance; But do not pass window unshakable in one's determination], the angle of lifting one's head in the top of its leading c phase low-voltage coil for greater than 0 °, smaller or equal to 60 °.The end of a phase low-voltage coil is lifted one's head also and can be lifted one's head along the top that the coiling direction lags behind a phase low-voltage coil, the angle of lifting one's head in its top that lags behind a phase low-voltage coil for greater than 0 °, smaller or equal to 60 °.The end of a phase low-voltage coil is lifted one's head and also can be lifted one's head along the top of the leading a phase of coiling direction low-voltage coil [is that last circle is around expiring continued around a segment distance; But do not pass window unshakable in one's determination], the angle of lifting one's head in the top of leading a phase low-voltage coil for greater than 0 °, smaller or equal to 180 °.All can realize saving material, loss is low, and the utility model purpose of three-phase resistance balance.
It is to utilize the position of lifting one's head that changes three-phase (a, b, c) low-voltage coil that the utility model is created, and has simplified lead-in wire dexterously and has arranged, reach materials and reduce, and the purpose of three-phase coil balance.Not only performance meets the demands, and has also reduced loss.Thereby realized the saving material, loss is low, the utility model purpose of three-phase resistance balance.
The foregoing description only be for clearly explain the utility model create done for example, and be not the qualification of the utility model being created embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the utility model creation claim.
Claims (10)
1. the low-voltage lead structure of a three dimensional wound core transformer comprises a phase low-voltage coil, b phase low-voltage coil and c low-voltage coil mutually, and low-voltage lead is y or y
0Connect method, it is characterized in that: the end of b phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of b phase low-voltage coil lifting one's head greater than 0 °, smaller or equal to 300 °.
2. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 1 is characterized in that: the end of c phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of c phase low-voltage coil lifting one's head greater than 0 °, smaller or equal to 180 °.
3. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 1 is characterized in that: the end of c phase low-voltage coil lift one's head the angle of lifting one's head along the top of the leading c phase of coiling direction low-voltage coil greater than 0 °, smaller or equal to 60 °.
4. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 1 is characterized in that: the end of a phase low-voltage coil lift one's head along the coiling direction lag behind the angle of the top of a phase low-voltage coil lifting one's head greater than 0 °, smaller or equal to 60 °.
5. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 1 is characterized in that: the end of a phase low-voltage coil lift one's head the angle of lifting one's head along the top of the leading a phase of coiling direction low-voltage coil greater than 0 °, smaller or equal to 180 °.
6. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 1; It is characterized in that: the axis of a phase low-voltage coil and the c axis of low-voltage coil mutually all are positioned on the same plane M, and the axis of b phase low-voltage coil is positioned on the plane N vertical with plane M; Lift one's head and the terminal both sides that lay respectively at plane N of lifting one's head in the top of b phase low-voltage coil.
7. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 6; It is characterized in that: the top of b phase low-voltage coil lift one's head with c mutually low-voltage coil all be positioned at the left side of plane N, the end of b phase low-voltage coil lift one's head with a mutually low-voltage coil all be positioned at the right side of plane N.
8. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 7 is characterized in that: the circle of last circle of b phase low-voltage coil long with the c circle appearance etc. of last circle of low-voltage coil mutually.
9. the low-voltage lead structure of a kind of three dimensional wound core transformer according to claim 8 is characterized in that: the end of b phase low-voltage coil lifts one's head that to lag behind the angle of the top of b phase low-voltage coil lifting one's head along the coiling direction be 120 °; The end of c phase low-voltage coil lifts one's head that to lag behind the angle of the top of c phase low-voltage coil lifting one's head along the coiling direction be 120 °; The circle of last circle of b phase low-voltage coil long with c mutually the circle of last circle of low-voltage coil grow all long less than the circle of last circle of a phase low-voltage coil.
10. according to the low-voltage lead structure of the arbitrary described a kind of three dimensional wound core transformer of claim 1-9; It is characterized in that: the end of a phase low-voltage coil lift one's head through a mutually end lift one's head lead-in wire (2) and three-phase end and lift one's head binding post (1) and be connected; The end of b phase low-voltage coil lift one's head through b mutually end lift one's head lead-in wire (3) and three-phase end and lift one's head binding post (1) and be connected, the end of c phase low-voltage coil lift one's head through c mutually end lift one's head lead-in wire (4) and three-phase end and lift one's head binding post (1) and be connected; Lift one's head and lift one's head lead-in wire (5) and a through a phase top and lift one's head binding post (8) and connect in top mutually in the top of a phase low-voltage coil; Lifting one's head and lift one's head lead-in wire (6) and b through b phase top and lift one's head binding post (9) and connect in top mutually in the top of b phase low-voltage coil, lifts one's head and lift one's head lead-in wire (7) and c through c phase top and lift one's head binding post (10) connection in top mutually in the top of c phase low-voltage coil; B phase top lift one's head lead-in wire (6) resistance, b mutually end lift one's head lead-in wire (3) resistance and b mutually the resistance sum of low-voltage coil equal c phase top lift one's head lead-in wire (7) resistance, c mutually end lift one's head resistance and the c resistance sum of low-voltage coil mutually of lead-in wire (4), and equal a phase top lift one's head lead-in wire (5) resistance, a mutually end lift one's head resistance and a resistance sum of low-voltage coil mutually of lead-in wire (2); C end mutually lifts one's head lead-in wire (4) and comprises that first lead-in wire goes between with second; One end and the c of first lead-in wire end of low-voltage coil mutually lifts one's head connection; The other end is connected at an end of the axis place of c phase low-voltage coil and second lead-in wire, and the other end of second lead-in wire belongs to plane M to the extension of a phase low-voltage coil and lift one's head binding post (1) through common lead and three-phase end and be connected along the axis of the axis of a phase low-voltage coil and c phase low-voltage coil; B mutually end lift one's head lead-in wire (3) an end and b mutually the end of low-voltage coil lift one's head connection, the other end and second lead-in wire are connected; A mutually end lift one's head lead-in wire (2) an end and a mutually the end of low-voltage coil lift one's head connection, the other end and second lead-in wire are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200262918U CN202473546U (en) | 2012-01-19 | 2012-01-19 | Low-voltage lead structure of three-dimensional wound core transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200262918U CN202473546U (en) | 2012-01-19 | 2012-01-19 | Low-voltage lead structure of three-dimensional wound core transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473546U true CN202473546U (en) | 2012-10-03 |
Family
ID=46921690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200262918U Expired - Lifetime CN202473546U (en) | 2012-01-19 | 2012-01-19 | Low-voltage lead structure of three-dimensional wound core transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543388A (en) * | 2012-01-19 | 2012-07-04 | 北京新特电气有限公司 | Low-voltage lead wire structure for three-dimensional wound core transformer |
-
2012
- 2012-01-19 CN CN2012200262918U patent/CN202473546U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543388A (en) * | 2012-01-19 | 2012-07-04 | 北京新特电气有限公司 | Low-voltage lead wire structure for three-dimensional wound core transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103354156B (en) | The pin configuration of the two transformer with split winding of a kind of three dimensional wound core | |
| CN102543388B (en) | Low-voltage lead wire structure for three-dimensional wound core transformer | |
| CN201749770U (en) | Resin insulation 3D iron core dry type transformer equipped with new lead wire structure | |
| CN203351361U (en) | Dual-split epoxy resin insulation dry-type boosting transformer used for wind power and photovoltaic power generation | |
| CN103413655B (en) | Insulation resin amorphous alloy dry-type traction rectifier transformer | |
| CN103337344A (en) | Double-split epoxy resin insulation dry type boosting transformer for wind power and photovoltaic power generation | |
| CN203232797U (en) | Epoxy pouring dry type transformer | |
| CN203351363U (en) | Lead structure of three-dimensional rolled core transformer with double split windings | |
| CN202473546U (en) | Low-voltage lead structure of three-dimensional wound core transformer | |
| CN202307457U (en) | Dual-ratio transformer | |
| CN201584276U (en) | Transformer body structure | |
| CN103295744A (en) | Self-saturating reactor for rectifier transformer | |
| CN207116212U (en) | A kind of current transformer of polytropic ratio | |
| CN202178141U (en) | Lead structure of Vv couple traction transformer | |
| CN202473547U (en) | High-voltage lead structure of solid coil iron core transformer | |
| CN214279763U (en) | Axial double-split single-phase dry-type transformer | |
| CN202695070U (en) | Transformer iron core with three-iron core column silicon steel wire | |
| CN102881435A (en) | Three-phase 24-pulse single-output winding phase-shifting rectifier transformer | |
| CN106816294A (en) | A kind of pair of high pressure shares a Multifunction transformer for voltage regulation coil | |
| CN202145411U (en) | Traction transformer | |
| CN203456255U (en) | Coil structure for traction-type transformer | |
| CN103489594A (en) | Traction-type transformer coil structure | |
| CN206293268U (en) | The novel capacitor type structure of oil-immersed current transformer first winding | |
| CN205194484U (en) | Adjustable dry -type parallel reactor unshakable in one's determination | |
| CN203366945U (en) | Self-saturation electric reactor for rectifier transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |