CN103474219A - Three-phase transformer - Google Patents
Three-phase transformer Download PDFInfo
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- CN103474219A CN103474219A CN 201310473262 CN201310473262A CN103474219A CN 103474219 A CN103474219 A CN 103474219A CN 201310473262 CN201310473262 CN 201310473262 CN 201310473262 A CN201310473262 A CN 201310473262A CN 103474219 A CN103474219 A CN 103474219A
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Abstract
The invention discloses a three-phase transformer which comprises a high-voltage winding, a low-voltage winding and an iron core, wherein the high-voltage winding comprises three phases of windings which are connected into a triangle; the winding direction of one of the three phases of windings is opposite to those of the other two phases of windings; the winding is arranged to be opposite to upper incoming line ends and lower incoming line ends of the other two phases of windings, and the winding is connected with the other two phases of windings end to end, so that a triangular connection is completed; the low-voltage winding comprises three phases of windings which are connected into a star shape; the low-voltage winding is provided with a public output terminal; each phase of winding is internally provided with a first output terminal, a second output terminal and a third output terminal. According to the three-phase transformer, the high-voltage winding adopts a triangular connection method, thus being simple in structure and convenient in wiring of a user; each phase of winding of the low-voltage winding is internally provided with the plurality of output terminals, so that multi voltage outputs can be realized, and the number of wiring terminals arranged on a voltage output end of the low-voltage winding can be reduced; therefore, the three-phase transformer is convenient to operate.
Description
Technical field
The present invention relates to a kind of transformer, relate in particular to a kind of three-phase transformer.
Background technology
Three-phase transformer is widely used in the alternating current steady voltage plug of electronic computer, precision machine tool, computer body-layer scanning photograph, precision instrument, experimental provision, elevator, import equipment and the production line of the departments such as industrial and mining enterprises, post and telecommunications, weaving, railway, construction site, school, hospital, hotel, national defence, scientific research, also is applicable to the low-voltage distribution that supply voltage is low, fluctuating range is large simultaneously.The triangle connected mode of the high pressure winding of tradition three-phase transformer is only applicable to the transformer of three phase winding floor plan, if be applied to the transformer that three phase winding Three-dimensional cloths are put, will cause the wiring complexity, take up room greatly, does not utilize terminal block.And, the tradition three-phase transformer becomes the low pressure Winding Design a plurality of branches winding on same iron core, make the coil turn difference of each branch's winding just can obtain different output voltages, but 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 is arranged, the Voltage-output terminal of transformer low voltage winding is too many, and it is very complicated that wiring becomes.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide a kind of three-phase transformer, the delta connection that its high pressure winding adopts simple in structure, be convenient to terminal block, and a plurality of lead-out terminals are set in every phase winding of low pressure winding, a plurality of Voltage-outputs had both been realized, the voltage output end that has reduced again the low pressure winding arranges the quantity of binding post, easy to operate.
For reaching this purpose, the present invention by the following technical solutions:
A kind of three-phase transformer, this three-phase transformer comprises high pressure winding, low pressure winding and iron core; Described high pressure winding is three phase windings that triangle connects, in this three phase winding a phase winding around to other two phase winding around to contrary, and this winding is contrary setting with described other upper and lower end of incoming cables of two phase windings, and, by joining end to end, completes triangle and connect; Three phase windings that described low pressure winding is Y-connection, this low pressure winding is provided with public output, and be provided with the first lead-out terminal in its every phase winding, the second lead-out terminal and the 3rd lead-out terminal; Wherein, coil in every phase winding of described low pressure winding between the first lead-out terminal and public output forms the first coil of this phase winding, coil between the second lead-out terminal and public output forms the second coil of this phase winding, and the coil between the 3rd lead-out terminal and described public output forms the tertiary coil of this phase winding.
Especially, described iron core assembly adopts cold-reduced silicon sheet.
The delta connection that mesohigh winding of the present invention adopts simple in structure, be convenient to terminal block, and a plurality of lead-out terminals are set in every phase winding of low pressure winding, both realized a plurality of Voltage-outputs, the voltage output end that has reduced again the low pressure winding arranges the quantity of binding post, easy to operate.
The accompanying drawing explanation
Fig. 1 is the three-phase transformer structure chart that the embodiment of the present invention provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and Examples, the invention will be further described.
Please refer to shown in Fig. 1, Fig. 1 is the three-phase transformer structure chart that the embodiment of the present invention provides.In the present embodiment, three-phase transformer comprises high pressure winding, low pressure winding and iron core T.
Described high pressure winding is three phase windings that triangle connects, this three phase winding is respectively: G1 phase winding, G2 phase winding, G3 phase winding, described G1 phase winding and G3 phase winding around consistent, described G2 phase winding and G1 phase winding, G3 phase winding around to contrary, and the G2 phase winding is contrary setting with the upper and lower end of incoming cables of inlet wire of G1 phase winding, G3 phase winding, and, by joining end to end, complete triangle and connect.Described G1 phase winding is by input terminal H1 access, and the G2 phase winding is by input terminal H2 access, and the G3 phase winding is by input terminal H3 access, the public input terminal that the E1 terminal is G1 phase winding, G2 phase winding and G3 phase winding.
Three phase windings that described low pressure winding is Y-connection, this low pressure winding is provided with the sub-E2 of public output, and this three phase winding is respectively: D1 phase winding, D2 phase winding, D3 phase winding.Described D1 phase winding completes Voltage-output by the sub-E2 of public output, lead-out terminal d11, lead-out terminal d12 and lead-out terminal d13, described D2 phase winding completes Voltage-output by the sub-E2 of public output, lead-out terminal d21, lead-out terminal d22 and lead-out terminal d23, and described D3 phase winding completes Voltage-output by the sub-E2 of public output, lead-out terminal d31, lead-out terminal d32 and lead-out terminal d33.Wherein, the first coil, the second coil and the tertiary coil of lead-out terminal d11, lead-out terminal d12, lead-out terminal d13 and the corresponding formation of coil D1 phase winding between the sub-E2 of public output.The first coil, the second coil and the tertiary coil of lead-out terminal d21, lead-out terminal d22, lead-out terminal d23 and the corresponding formation of coil D2 phase winding between the sub-E2 of public output.The first coil, the second coil and the tertiary coil of lead-out terminal d31, lead-out terminal d32, lead-out terminal d33 and the corresponding formation of coil D3 phase winding between the sub-E2 of public output.
When transformer needs three-phase voltage output, voltage between the sub-E2 of lead-out terminal d11 and public output is U1, voltage between the sub-E2 of lead-out terminal d21 and public output is U2, voltage between the sub-E2 of lead-out terminal d31 and public output is U3, now, the low pressure winding only needs ten terminals just to complete three-phase voltage output.It should be noted that, the T of iron core described in the present embodiment assembling adopts cold-reduced silicon sheet, can reduce like this coercive force, core loss (iron loss) and magnetic aging.
The delta connection that technical scheme mesohigh winding of the present invention adopts simple in structure, be convenient to terminal block, and a plurality of lead-out terminals are set in every phase winding of low pressure winding, a plurality of Voltage-outputs had both been realized, the voltage output end that has reduced again the low pressure winding arranges the quantity of binding post, easy to operate.
Above are only preferred embodiment of the present invention and institute's application technology principle, anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the variation that can expect easily or replacement, all should be encompassed in protection scope of the present invention.
Claims (2)
1. a three-phase transformer, is characterized in that, comprises high pressure winding, low pressure winding and iron core; Described high pressure winding is three phase windings that triangle connects, in this three phase winding a phase winding around to other two phase winding around to contrary, and this winding is contrary setting with described other upper and lower end of incoming cables of two phase windings, and, by joining end to end, completes triangle and connect; Three phase windings that described low pressure winding is Y-connection, this low pressure winding is provided with public output, and be provided with the first lead-out terminal in its every phase winding, the second lead-out terminal and the 3rd lead-out terminal; Wherein, coil in every phase winding of described low pressure winding between the first lead-out terminal and public output forms the first coil of this phase winding, coil between the second lead-out terminal and public output forms the second coil of this phase winding, and the coil between the 3rd lead-out terminal and described public output forms the tertiary coil of this phase winding.
2. three-phase transformer according to claim 1, is characterized in that, described iron core assembly adopts cold-reduced silicon sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310473262 CN103474219A (en) | 2013-10-11 | 2013-10-11 | Three-phase transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310473262 CN103474219A (en) | 2013-10-11 | 2013-10-11 | Three-phase transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103474219A true CN103474219A (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310473262 Pending CN103474219A (en) | 2013-10-11 | 2013-10-11 | Three-phase transformer |
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| CN (1) | CN103474219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895343A (en) * | 2016-06-08 | 2016-08-24 | 国网青海省电力公司 | Automatic voltage increase and decrease transformer |
-
2013
- 2013-10-11 CN CN 201310473262 patent/CN103474219A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895343A (en) * | 2016-06-08 | 2016-08-24 | 国网青海省电力公司 | Automatic voltage increase and decrease transformer |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |
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| WD01 | Invention patent application deemed withdrawn after publication |