CN202003815U - Three-phase transformer - Google Patents
Three-phase transformer Download PDFInfo
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- CN202003815U CN202003815U CN2010206965994U CN201020696599U CN202003815U CN 202003815 U CN202003815 U CN 202003815U CN 2010206965994 U CN2010206965994 U CN 2010206965994U CN 201020696599 U CN201020696599 U CN 201020696599U CN 202003815 U CN202003815 U CN 202003815U
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Abstract
The utility model discloses a three-phase transformer which comprises a primary winding, a secondary winding and an iron core; the primary winding and the secondary winding are respectively winded on the iron core and are both three-phase windings; the primary winding is in star connection or in delta connection; the secondary winding is in star connection with a public output terminal; and each phase winding of the secondary winding is provided with at least three output terminals. The three-phase transformer is suitable for occasions requiring different voltages; when the different requirements on voltage are met, the number of terminals at an output end is reduced; therefore, the wire connection is simplified.
Description
Technical field
The utility model relates to transformer technology, relates in particular to a kind of three-phase transformer with voltage in several modes.
Background technology
Three-phase transformer is widely used in the conversion of voltage in the industrial production, three-phase transformer comprises winding, secondary winding and iron core one time, winding and secondary winding are three-phase, winding and secondary winding are the coil on the iron core respectively, based on the different conversion that realize voltage of the number of turn with the secondary winding coil of winding.When the needs multiple voltage, generally on same iron core, secondary winding is designed to a plurality of branches winding in the prior art, make the coil turn difference of each branch's winding just can obtain different output voltages.
This a plurality of branches winding has satisfied different voltage requirements, simultaneously, because each branch's winding is independent coil, so each branch's winding all has two lead-out terminals.When a plurality of voltage requirements, the voltage output end of transformer secondary winding is too many, and it is very complicated that wiring becomes.
The utility model content
The purpose of this utility model provides a kind of three-phase transformer, in order to solve the voltage output end wiring complicated problems of secondary winding.
For achieving the above object, the utility model provides a kind of three-phase transformer, comprise: winding, secondary winding and an iron core, a described winding and described secondary winding are respectively on described iron core, a described winding and described secondary winding are three phase windings, a described winding is that Y-connection or triangle connect, and described secondary winding is the Y-connection with public output, has three lead-out terminals in every phase winding of described secondary winding at least.
Comprise described public output in every phase winding of described secondary winding, first lead-out terminal, second lead-out terminal and the 3rd lead-out terminal, coil between first lead-out terminal of every phase winding and described public output is first coil of this phase winding, coil between second lead-out terminal of every phase winding and described public output is second coil of this phase winding, coil between the 3rd lead-out terminal of every phase winding and described public output is the tertiary coil of this phase winding, in three phase windings of described secondary winding, the number of turn of each first coil all equates, the number of turn of each second coil all equates, the number of turn of each tertiary coil all equates, and the number of turn of described first coil is less than the number of turn of described second coil, and the number of turn of described second coil is less than the number of turn of described tertiary coil.
As shown from the above technical solution, the utility model, also can make output terminals subnumber reduce, thereby wiring is become simply, easily operation when guaranteeing a plurality of output voltages by in every phase winding of secondary winding a plurality of lead-out terminals being set.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model three-phase transformer embodiment one;
Fig. 2 is the structural representation of the utility model three-phase transformer embodiment two.
The main element symbol description:
A, B, C: input terminal; O: public input terminal;
L: iron core; O: public output;
A0, b0, c0: first lead-out terminal; A1, b1, c1: second lead-out terminal;
A2, b2, c2: the 3rd lead-out terminal.
Embodiment
The technical solution of the utility model is further described by embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the utility model three-phase transformer embodiment one, as shown in Figure 1, the three-phase transformer of present embodiment comprises: a winding, secondary winding and iron core L, a described winding and described secondary winding are respectively on described iron core L, a described winding and described secondary winding are three phase windings, the three-phase of a winding is respectively: the X phase, Y mutually with Z mutually, the three-phase of secondary winding is respectively: the x phase, y mutually with z mutually, a described winding is Y-connection, described secondary winding is the Y-connection with the sub-o of public output, and four lead-out terminals are arranged in every phase winding of described secondary winding.In practice, also more lead-out terminal can be set as required.
In the present embodiment, the three-phase input side, X is inserted by input terminal A, and Y is inserted by input terminal B, and Z is inserted by input terminal C, and X phase, Y have public input terminal O mutually with Z mutually; The three-phase outlet side, four lead-out terminals are arranged in the x phase winding, be respectively the sub-o of public output, the first lead-out terminal a0, the second lead-out terminal a1 and the 3rd lead-out terminal a2, this transformer set-up mode has three voltage output values, promptly the voltage between the first lead-out terminal a0 and the sub-o of public output is U0, voltage between the second lead-out terminal a1 and the sub-o of public output is U1, voltage between the 3rd lead-out terminal a2 and the sub-o of public output is U2, the three-phase outlet side is every need four binding posts to be exportable three output voltage values mutually altogether, and three-phase needs ten binding posts.And transformer of the prior art is if whenever export three magnitudes of voltage mutually, then need six binding posts, three-phase needs 12 binding posts, therefore, the three-phase transformer outlet side binding post of present embodiment is less relatively, gets over for a long time when the output voltage values number, and the effect that can reduce output wiring terminal is more obvious, therefore wiring is relatively easy, more convenient to operate.Four lead-out terminals are also arranged in the y phase winding, be respectively the sub-o of public output, the first lead-out terminal b0, the second lead-out terminal b1 and the 3rd lead-out terminal b2, four lead-out terminals are also arranged in the z phase winding, be respectively the sub-o of public output, the first lead-out terminal c0, the second lead-out terminal c1 and the 3rd lead-out terminal c2.The y phase winding is identical with the x phase winding with z phase winding operation principle, repeats no more.When needing phase voltage to be the three-phase electricity of U0, get final product from the sub-o of public output and three first lead-out terminal a0, b0, c0 wiring.When needing phase voltage to be the three-phase electricity of U1, get final product from the sub-o of public output and three second lead-out terminal a1, b1, c1 wiring.When needing phase voltage to be the three-phase electricity of U2, get final product from the sub-o of public output and three the 3rd lead-out terminal a2, b2, c2 wiring.
Present embodiment can make output terminals subnumber reduce, thereby make wiring become simple by in every phase winding of secondary winding a plurality of lead-out terminals being set.
Fig. 2 is the structural representation of the utility model three-phase transformer embodiment two, as shown in Figure 2, compare with embodiment shown in Figure 1, the three-phase of a winding of input side adopts triangle to connect in the present embodiment, the outlet side secondary winding can be exported three kinds of voltages equally in the present embodiment, its operation principle repeats no more with the above embodiments one.
In above-mentioned Fig. 1 or embodiment shown in Figure 2, coil between first lead-out terminal of every phase winding and described public output is first coil of this phase winding, as x mutually in first coil between the first lead-out terminal a0 and the sub-o of public output, coil between second lead-out terminal of every phase winding and described public output is second coil of this phase winding, as x mutually in second coil between the second lead-out terminal a1 and the sub-o of public output, coil between the 3rd lead-out terminal of every phase winding and described public output is the tertiary coil of this phase winding, as x mutually in tertiary coil between the 3rd lead-out terminal a2 and the sub-o of public output, y mutually with z mutually in first coil, second coil and tertiary coil similar.
In three phase windings, the number of turn of each first coil all equates, be that first coil of x phase, first coil of y phase and the number of turn of z first coil mutually all equate, when making three first coil extraction voltages from three-phase transformer, three magnitudes of voltage equate, are balance and stabilities thereby make the three-phase voltage of output; The number of turn of each second coil equates that all promptly the number of turn of second coil of second coil of x phase, y phase and z second coil mutually all equates, during from three second coil extraction voltages of three-phase transformer, three magnitudes of voltage also are mutual balances; The number of turn of each tertiary coil equates that all promptly the number of turn of the tertiary coil of the tertiary coil of x phase, y phase and z tertiary coil mutually all equates, during from three tertiary coil extraction voltages of three-phase transformer, three magnitudes of voltage also are mutual balances.The number of turn of described first coil is less than the number of turn of described second coil, promptly first lead-out terminal from the first coil correspondence connects the magnitude of voltage of output less than the magnitude of voltage that connects output from second lead-out terminal of the second coil correspondence, as U0＜U1, the number of turn of described second coil is less than the number of turn of described tertiary coil, promptly second lead-out terminal from the second coil correspondence connects the magnitude of voltage of output less than the magnitude of voltage that connects output from the 3rd lead-out terminal of tertiary coil correspondence, as U1＜U2.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (2)
1. three-phase transformer, comprise winding, secondary winding and iron core one time, a described winding and described secondary winding are respectively on described iron core, a described winding and described secondary winding are three phase windings, it is characterized in that, a described winding is that Y-connection or triangle connect, and described secondary winding is the Y-connection with public output, has three lead-out terminals in every phase winding of described secondary winding at least.
2. transformer according to claim 1, it is characterized in that, comprise described public output in every phase winding of described secondary winding, first lead-out terminal, second lead-out terminal and the 3rd lead-out terminal, coil between first lead-out terminal of every phase winding and described public output is first coil of this phase winding, coil between second lead-out terminal of every phase winding and described public output is second coil of this phase winding, coil between the 3rd lead-out terminal of every phase winding and described public output is the tertiary coil of this phase winding, in three phase windings of described secondary winding, the number of turn of each first coil all equates, the number of turn of each second coil all equates, the number of turn of each tertiary coil all equates, and the number of turn of described first coil is less than the number of turn of described second coil, and the number of turn of described second coil is less than the number of turn of described tertiary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206965994U CN202003815U (en) | 2010-12-31 | 2010-12-31 | Three-phase transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206965994U CN202003815U (en) | 2010-12-31 | 2010-12-31 | Three-phase transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003815U true CN202003815U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206965994U Expired - Fee Related CN202003815U (en) | 2010-12-31 | 2010-12-31 | Three-phase transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003815U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354154A (en) * | 2013-06-27 | 2013-10-16 | 宜兴市兴益特种变压器有限公司 | Coil wiring structure used for rectifier transformer |
| CN104810141A (en) * | 2014-01-28 | 2015-07-29 | 西门子公司 | Medical device, transformer and transformation method |
| CN105788836A (en) * | 2016-05-20 | 2016-07-20 | 李建新 | Transformer for low-voltage power transmission line |
| CN105827119A (en) * | 2016-06-15 | 2016-08-03 | 国网青海省电力公司 | Automatic voltage stabilizing transformer |
-
2010
- 2010-12-31 CN CN2010206965994U patent/CN202003815U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354154A (en) * | 2013-06-27 | 2013-10-16 | 宜兴市兴益特种变压器有限公司 | Coil wiring structure used for rectifier transformer |
| CN104810141A (en) * | 2014-01-28 | 2015-07-29 | 西门子公司 | Medical device, transformer and transformation method |
| CN105788836A (en) * | 2016-05-20 | 2016-07-20 | 李建新 | Transformer for low-voltage power transmission line |
| CN105827119A (en) * | 2016-06-15 | 2016-08-03 | 国网青海省电力公司 | Automatic voltage stabilizing 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 |
Granted publication date: 20111005 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |