CN202487354U - Power transformer in novel low-voltage coil structure - Google Patents
Power transformer in novel low-voltage coil structure Download PDFInfo
- Publication number
- CN202487354U CN202487354U CN2012200735697U CN201220073569U CN202487354U CN 202487354 U CN202487354 U CN 202487354U CN 2012200735697 U CN2012200735697 U CN 2012200735697U CN 201220073569 U CN201220073569 U CN 201220073569U CN 202487354 U CN202487354 U CN 202487354U
- Authority
- CN
- China
- Prior art keywords
- voltage coil
- phase low
- low
- coil
- phase
- 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
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a power transformer in a novel low-voltage coil structure. The power transformer comprises an A phase low-voltage coil, a B phase low-voltage coil and a C phase low-voltage coil, wherein the coiling directions of the A phase low-voltage coil and the C phase low-voltage coil are same, and the coiling direction of the B phase low-voltage coil is opposite to the coiling directions of the A phase low-voltage coil and the C phase low-voltage coil; and the power transformer in a novel low-voltage coil structure adopts an outlet coil connection mode that an end a of the A phase low-voltage coil and the end y of an B phase low-voltage coil are connected with a coil outlet terminal a, the end b of the B phase low-voltage coil and the end z of the C phase low-voltage coil are connected with a coil outlet terminal b, and the end c of the C phase low-voltage coil and the end x of the A phase low-voltage coil are connected with a coil outlet terminal c. The power transformer improves the coiling structure of the B phase low-voltage coil, the lengths of A phase low-voltage coil, the B phase low-voltage coil and the C phase low-voltage coil are basically equal after the three coils are connected to form a triangle, and the direct-current resistances of the three phases are basically balanced, so that the product quality is improved, materials are saved, the consumption of manpower and material resources caused by the readjustment to the balance of the direct-current resistances of the three phases is avoided, and meanwhile, leads becomes relatively concise and attractive.
Description
Technical field
The utility model relates to a kind of power equipment, and is particularly a kind of through improved power transformer with novel low-voltage coil structure.
Background technology
For large-scale power transformer, low-voltage coil generally adopts delta connection, traditional large-scale power transformer; Three coil winding-directions of low-voltage coil are identical; (like Fig. 3, shown in Figure 4) is because the structural restriction of spatial transformer generally concentrates on the low pressure outlet between B phase and the C phase.Power transformer with this kind coiling form exists following not enough:
1. because the D.C. resistance of low-voltage coil body is very little, be coupled to after the triangle, the shared proportion of the D.C. resistance of lead-in wire is relatively large; Adopt above-mentioned type of attachment to cause the line (as shown in Figure 4) different in size between each phase; Often make CA mutually between D.C. resistance bigger than normal, CB mutually between D.C. resistance less than normal, even the D.C. resistance of low-voltage coil body is a balance like this; But because the influence of the D.C. resistance of lead-in wire causes DCR of Transformer uneven at last;
2. in order to solve the problem of above-mentioned generation, the copper bar that connection copper bar between the c end of generally taking to thicken the C phase and the A x end mutually and A lift one's head mutually makes its cross section increase, reduces D.C. resistance, thereby reaches the three-phase dc resistance balance again.So not only waste material makes the lead-in wire of transformer become attractive in appearance inadequately, and owing to connect the material of copper bar and the influence of coil D.C. resistance certainty of measurement, the often bad assurance in the copper bar cross section of increase causes reprocessing, waste great amount of manpower and material resources.
Summary of the invention
The purpose of the utility model be with original low-voltage coil around improving to structure, a kind of power transformer with novel low-voltage coil structure is provided, to overcome the existing above-mentioned deficiency of prior art.
The technical scheme that the utility model is taked is: a kind of power transformer with novel low-voltage coil structure; Comprise A phase low-voltage coil, B phase low-voltage coil and C low-voltage coil mutually, said A phase low-voltage coil is identical with C phase low-voltage coil direction of winding, low-voltage coil is opposite with C phase low-voltage coil mutually with A for B phase low-voltage coil direction of winding; Its outlet connected mode is: a end of A phase low-voltage coil and the y end of B phase low-voltage coil are connected with outlet terminal a; The b end of B phase low-voltage coil and the z end of C phase low-voltage coil are connected with outlet terminal b, and the c end of C phase low-voltage coil and the x end of A phase low-voltage coil are connected with outlet terminal c.
Owing to take technique scheme, the power transformer with novel low-voltage coil structure of the utility model has following beneficial effect
:
1.The power transformer with novel low-voltage coil structure of the utility model has improved the winding structure of B phase low-voltage coil; Be coupled to after the triangle: the B that extended goes out the length that head part goes between mutually; Shortened A simultaneously and gone out the length that head part goes between mutually, three-phase wire length basically identical is as long as the D.C. resistance of coil body is a balance; After connecting lead-in wire, three-phase dc resistance just can be accomplished in a basic balance.
2. owing to take said structure, both improved product quality, practiced thrift material again, and made lead-in wire more succinctly attractive in appearance simultaneously, also avoided to readjusting the waste of the manpower and materials that the three-phase dc resistance balance causes.
Below knot and accompanying drawing and embodiment to the power transformer of the novel low-voltage coil structure of having of the utility model
Technical characterictic be further described.
Description of drawings
Fig. 1: each phase low-voltage coil coiling sketch map of the power transformer with novel low-voltage coil structure of the utility model;
Fig. 2: the outlet of the power transformer with novel low-voltage coil structure of the utility model connects sketch map;
Fig. 3: each phase low-voltage coil coiling sketch map of existing power transformer;
Fig. 4: the outlet of existing power transformer connects sketch map.
Embodiment
Embodiment
A kind of power transformer with novel low-voltage coil structure; Comprise A phase low-voltage coil, B phase low-voltage coil and C low-voltage coil mutually, it is characterized in that: said A phase low-voltage coil is identical with C phase low-voltage coil direction of winding, low-voltage coil is opposite with C phase low-voltage coil mutually with A for B phase low-voltage coil direction of winding; Its outlet connected mode is:
The a end of A phase low-voltage coil and the y end of B phase low-voltage coil are connected with outlet terminal a, and the b end of B phase low-voltage coil and the z end of C phase low-voltage coil are connected with outlet terminal b, and the c end of C phase low-voltage coil and the x end of A phase low-voltage coil are connected with outlet terminal c.
Claims (1)
1. power transformer with novel low-voltage coil structure; Comprise A phase low-voltage coil, B phase low-voltage coil and C low-voltage coil mutually, it is characterized in that: said A phase low-voltage coil is identical with C phase low-voltage coil direction of winding, low-voltage coil is opposite with C phase low-voltage coil mutually with A for B phase low-voltage coil direction of winding; Its outlet connected mode is: a end of A phase low-voltage coil and the y end of B phase low-voltage coil are connected with outlet terminal a; The b end of B phase low-voltage coil and the z end of C phase low-voltage coil are connected with outlet terminal b, and the c end of C phase low-voltage coil and the x end of A phase low-voltage coil are connected with outlet terminal c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200735697U CN202487354U (en) | 2012-03-01 | 2012-03-01 | Power transformer in novel low-voltage coil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200735697U CN202487354U (en) | 2012-03-01 | 2012-03-01 | Power transformer in novel low-voltage coil structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202487354U true CN202487354U (en) | 2012-10-10 |
Family
ID=46961758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200735697U Expired - Fee Related CN202487354U (en) | 2012-03-01 | 2012-03-01 | Power transformer in novel low-voltage coil structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202487354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920655A (en) * | 2017-04-18 | 2017-07-04 | 重庆祥龙电气股份有限公司 | A kind of alternating expression lightning protection transformer |
-
2012
- 2012-03-01 CN CN2012200735697U patent/CN202487354U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106920655A (en) * | 2017-04-18 | 2017-07-04 | 重庆祥龙电气股份有限公司 | A kind of alternating expression lightning protection transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206059124U (en) | The double division dry type transformer structures of 3 D stereo volume iron core | |
| CN202487354U (en) | Power transformer in novel low-voltage coil structure | |
| CN205487713U (en) | A inductance for high -power direct -current power supply | |
| CN202307457U (en) | Dual-ratio transformer | |
| CN204857392U (en) | Novel anti ware of high -power high frequency electric of five posts of three -phase | |
| CN204348485U (en) | A kind of low voltage lead structure of stereo triangle transformer | |
| CN204480863U (en) | Rectifier transformer winding arrangement structure | |
| CN203706818U (en) | On-load capacity regulating transformer low-voltage wire outlet structure | |
| CN202178141U (en) | Lead structure of Vv couple traction transformer | |
| CN202695100U (en) | Structure of main transformer consisting of multiple transformers in inverse power supply | |
| CN104681255B (en) | Method for wiring on-load, capacity-regulating and voltage-regulating transformer with triangular three-dimensional reel iron core | |
| CN203931773U (en) | Solar energy photovoltaic generating dry-type transformer | |
| CN104376990A (en) | Lead structure of triangular iron roll core transformer | |
| CN206116154U (en) | Metallic glass transformer that noise is little | |
| CN203056722U (en) | Coil connecting device for high voltage winding motor rotor | |
| CN203261160U (en) | Armature mechanism of motor | |
| CN203760280U (en) | Lead structure at network side of three-dimensional rolled-iron-core phase-shifting rectification dry-type transformer | |
| CN204117788U (en) | A kind of three-dimensional wound core dry type transformer low voltage lead structure | |
| CN209461266U (en) | Step down side lead wire connection structure | |
| CN203386580U (en) | Low-voltage lead wire structure of medium and small sized transformer | |
| CN202678057U (en) | Inter-phase wire connecting structure of rectifying transformer | |
| CN203760275U (en) | Low-voltage d wiring structure of three-dimensional rolled-iron-core dry-type transformer | |
| CN203840102U (en) | Motor wiring terminal | |
| CN201797423U (en) | Stator assembly of one-way capacitance asynchronous motor | |
| CN202678055U (en) | Transformer winding recombinant structure |
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 |
Granted publication date: 20121010 Termination date: 20140301 |