CN112992496A - Transformer capable of simulating winding deformation - Google Patents
Transformer capable of simulating winding deformation Download PDFInfo
- Publication number
- CN112992496A CN112992496A CN202110262707.XA CN202110262707A CN112992496A CN 112992496 A CN112992496 A CN 112992496A CN 202110262707 A CN202110262707 A CN 202110262707A CN 112992496 A CN112992496 A CN 112992496A
- Authority
- CN
- China
- Prior art keywords
- transformer
- winding
- pie
- cake
- deformation
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2871—Pancake coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
Abstract
The invention discloses a transformer capable of simulating winding deformation, and relates to the field of transformer testing equipment. The problem of the research of winding deformation mainly based on the transformer that has damaged, can't contrast and data accumulation is solved. The invention shows a transformer comprising: a cake winding unit and a wiring bar; the pie winding unit is a detachable annular structure, including: a positive cake and a negative cake, the positive cake being adjacent to the negative cake; and plugs are arranged on the wiring row and correspond to the heads and the tails of the cake-shaped winding units one by one. The invention shows a transformer capable of simulating winding deformation, compared with the actual experimental data of single winding deformation of the transformer, the invention can simulate the deformation experiments of various windings, compare the experimental data of various deformed windings, and reserve space for a measuring instrument at each position, thereby facilitating the measurement. The method and the device are greatly helpful for carrying out comparative tests and data accumulation of transformer winding deformation.
Description
Technical Field
The invention relates to the technical field of transformer testing equipment, in particular to a transformer capable of simulating winding deformation.
Background
The direct current winding is the heart of the transformer, is formed by winding electromagnetic wires with higher conductivity, is a circuit part of the transformer and forms an electric loop of the input and output electric energy of the transformer. When the transformer winding is seriously deformed due to external force or electrodynamic force and the like, if the transformer winding is continuously put into use, the winding is finally short-circuited to develop fatal faults, the transformer winding not only affects the transformer winding, but also has great influence on an iron core, a lead wire, an insulating screen and the like, if the transformer winding is not timely found, the transformer winding is completely damaged due to continuous operation, and even the transformer explodes. Therefore, it is important to study the deformation of the winding.
In the prior art, the study on winding deformation is mainly based on damaged transformers, and the deformation of the transformers is only one type which has already occurred, and cannot be compared and data accumulation can not be carried out. The method not only wastes resources, but also has no universality in research results.
Therefore, the invention of a transformer specially used for the test becomes an urgent problem to be solved. The transformer should possess the following characteristics: the transformer fault simulation device can simulate various winding deformation after transformer faults, and then can finish the purposes of contrast test and data accumulation, and each part of the transformer is convenient to detach and replace for finishing the contrast test.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a transformer capable of simulating winding deformation, and solves the problems that the research on the winding deformation is mainly based on a damaged transformer, and comparison and data accumulation cannot be carried out.
The invention shows a transformer capable of simulating winding deformation, which comprises: a cake winding unit and a wiring bar;
the pie winding unit is a detachable annular structure, including: the cake-shaped winding unit is a deformable winding;
and plugs are arranged on the wiring row and correspond to the heads and the tails of the cake-shaped winding units one by one.
In some embodiments, the pie winding units are continuous windings, the number of the positive pie is multiple, the number of the negative pie is multiple, the odd-numbered section is the negative pie, and the even-numbered section is the positive pie.
In some embodiments, there are a plurality of the pie winding units.
In some embodiments, the plug and the pie winding unit are connected by welding.
In some embodiments, further comprising: the device comprises a cushion block, a clamping piece, a pulling plate, an upper iron yoke and a lower iron yoke;
the cushion block is arranged on the cake-shaped winding unit;
the clamping pieces are horizontally arranged at two ends of the pie-shaped winding unit and are respectively connected with the upper iron yoke and the lower iron yoke;
the cake-shaped winding unit is detachably sleeved on the pull plate;
the clamping piece is connected with the pulling plate in a threaded mode.
In some embodiments, the pulling plates are multiple, and the distance between the pulling plates is greater than or equal to the maximum outer diameter of the pie-shaped winding unit.
In some embodiments, further comprising: a middle partition plate;
an intermediate partition plate is arranged between any two adjacent pie-shaped winding units.
In some embodiments, the pie winding units are routed end-to-end with virgin copper wire.
According to the technical scheme, the embodiment of the invention has the following beneficial effects: the invention shows a transformer comprising: a cake winding unit and a wiring bar; the pie winding unit is a detachable annular structure, including: a positive cake and a negative cake, the positive cake being adjacent to the negative cake; and plugs are arranged on the wiring row and correspond to the heads and the tails of the cake-shaped winding units one by one. The invention discloses a transformer capable of simulating winding deformation, wherein the transformer winding is a pie winding, so that the transformer winding is convenient to disassemble and replace, and the deformable winding is manufactured to simulate winding deformation after transformer failure; the corresponding wiring row is convenient for winding deformation tests under various working conditions; enough space is reserved for various measuring instruments at each position of the transformer; the upper and lower iron yokes are clamped by the clamping piece, the pulling plate is connected with the upper and lower clamping pieces, the coil is supported and pressed by the cushion block, the clamping piece and the upper iron yoke are convenient to disassemble, and researchers can replace various deformed windings conveniently; the single experimental data of transformer winding deformation in the contrast reality can carry out the simulation of multiple winding deformation experiment, and the experimental data of many kinds of deformation windings are compared, reserve the space for the measuring instrument in each position simultaneously, convenient measurement. The method and the device are greatly helpful for carrying out comparative tests and data accumulation of transformer winding deformation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a transformer capable of simulating winding deformation according to the present invention;
FIG. 2 is a side view of an embodiment of a transformer capable of simulating winding deformation according to the present invention;
fig. 3a is a schematic structural diagram of a pie-shaped winding unit in a transformer capable of simulating winding deformation according to a first embodiment of the present invention;
fig. 3b is a schematic structural diagram of a pie-shaped winding unit in a transformer capable of simulating winding deformation according to a second embodiment of the present invention;
fig. 3c is a schematic structural diagram of a pie-shaped winding unit in a transformer capable of simulating winding deformation according to a third embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of a very split winding in a transformer capable of simulating winding deformation according to the present invention;
fig. 5 is a schematic structural diagram of another embodiment of a transformer capable of simulating winding deformation according to the present invention.
Detailed Description
In order to make the technical solutions in the embodiments of the present invention better understood and make the above objects, features and advantages of the embodiments of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an embodiment of a transformer capable of simulating winding deformation according to the present invention. As shown in fig. 1, a transformer capable of simulating winding deformation includes: a cake-shaped winding unit 1 and a wiring bar 2; referring to fig. 2 and 4, the pie-shaped winding unit 1 is a detachable ring-shaped structure, and includes: a positive cake 11 and a negative cake 12, wherein the positive cake 11 is adjacent to the negative cake 12.
Fig. 2 is a side view of an embodiment of a transformer capable of simulating winding deformation according to the present invention. Referring to fig. 1 and 2, plugs 21 are arranged on the terminal block 2, and the plugs 21 correspond to the ends of the pie-shaped winding units 1 one by one.
The cake-shaped winding unit 1 is a cake-shaped winding, so that the cake-shaped winding unit is convenient to disassemble and replace; the pie winding units 1 are deformable windings to simulate winding deformation that occurs after a transformer failure. The plugs 21 corresponding to the end-to-end of the pie-shaped winding unit 1 are convenient for winding deformation tests under various working conditions, and enough space is reserved for various measuring instruments between each coil cake and between high-voltage and low-voltage windings of the transformer.
Fig. 3a to fig. 3c are schematic structural diagrams of a pancake winding unit capable of simulating deformation in a transformer capable of simulating winding deformation according to the present invention. As shown in the figure, the transformer capable of simulating winding deformation, which is disclosed by the application, is used for manufacturing windings with different deformations, and measuring the short-circuit impedance and other parameter changes of the transformer for comparison tests by replacing the windings with different deformations.
Fig. 4 is a schematic structural diagram of an embodiment of a very split winding in a transformer capable of simulating winding deformation according to the present invention. As shown in fig. 4, in some embodiments, the pie winding unit 1 is a continuous winding, the number of the front pie 11 is multiple, the number of the back pie 12 is multiple, odd-numbered segments are the back pie 12, and even-numbered segments are the front pie 11. In the figure, a1(B1, C1), a2(B2, C2), A3(B3, C3), A4(B4, C4), A5(B5, C5), A6(B6, C6), A7(B7, C7), A8(B8, C8), a9(B9, C9), a10(B10, C10), X1(Y1, Z1), X2(Y2, Z2), X3(Y3, Z3), X4(Y4, Z4), X5(Y5, Z5, X5(Y5, Z5) and Z5 (Y5) represent a wiring relationship.
Preferably, the pie-shaped winding unit 1 has four cakes, two positive cakes 11 and two negative cakes 12, when the continuous coil is wound, the coil is wound in the right winding direction, the first and third segments are the negative cakes 12, and the second and fourth segments are the positive cakes 11.
In some embodiments, there are a plurality of pie winding units 1. Preferably, with reference to fig. 1 and 4, there are ten pie winding units 1.
Preferably, the number of the cake-shaped winding units 1 is ten, which is also called a ten-split winding, and the wiring rows are correspondingly arranged, so that winding deformation tests under various working conditions are conveniently performed. It is specially noted that the head and the tail of each unit are led out by using an original copper wire, and the length of each unit is 200; the lead wires are wrapped by polyimide film in a half-lap mode for two layers, and then 0.05 multiplied by 30 is used; half-selecting four layers of Nomex paper 410, wrapping the length by 150, and wrapping five layers of Nomex paper at the welding position; the cell pitch of the pancake winding cells 1 can be adjusted appropriately but the coil clamping ensures a height 630.
In some embodiments, the connection of the plug 21 and the pie winding unit 1 is welding.
The copper wire is arranged at the lower part during welding; the head and tail cakes need to be 0.05 multiplied by 30; nomex paper 410 is half-wrapped in two layers.
In some embodiments, further comprising: the device comprises a cushion block 3, a clamping piece 4, a pulling plate 5, an upper iron yoke 6 and a lower iron yoke 7; the cushion block 3 is arranged on the cake-shaped winding unit 1; the clamping pieces 4 are horizontally arranged at two ends of the pie-shaped winding unit 1 and are respectively connected with the upper iron yoke 6 and the lower iron yoke 7; the cake-shaped winding unit 1 is detachably sleeved on the pulling plate 5; the clamping piece 4 and the pulling plate 5 are in threaded connection.
The clamping piece clamps the upper and lower iron yokes, the pull plate is connected with the upper and lower clamping pieces, and the cushion block supports and compresses the coil, so that the clamping piece and the upper iron yoke are convenient to disassemble, and researchers can replace various deformed windings conveniently.
In some embodiments, there are a plurality of pulling plates 5, and the distance between the pulling plates 5 is greater than or equal to the maximum outer diameter of the pie-shaped winding unit 1.
The simulation of various winding deformation experiments can be carried out, the experimental data of various deformation windings are compared, and meanwhile, spaces are reserved for measuring instruments at various positions, so that the measurement is convenient.
In some embodiments, further comprising: a middle partition plate 8;
an intermediate partition plate 8 is arranged between any two adjacent cake-shaped winding units 1.
The transformer capable of simulating winding deformation provided by the invention is also provided with a tapping indication board: prompting how the taps are to be ordered. The roller is arranged for convenient movement.
Generally, the study on the winding deformation is mainly based on simulation software, because in reality, after the winding of one transformer is deformed, we can only study the deformation of the transformer without reference to comparison. The purpose of the application is to simulate the deformation, manufacture various windings with different deformations, and measure the short-circuit impedance and other parameter changes of the transformer by replacing the windings with different deformations for comparison test.
Fig. 5 is a schematic structural diagram of another embodiment of a transformer capable of simulating winding deformation according to the present invention. As shown in fig. 5, the present application is specially used for testing, so that sufficient space is left for the measuring instrument at various positions, and the components are easy to disassemble and replace, and the design of different deformation windings is very helpful for comparative testing and data accumulation of people, because the traditional research on the deformation windings of the transformer is based on a real fault transformer, and the deformation of the transformer is only one type which has already occurred, so that the comparative testing and the data accumulation cannot be carried out.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.
The embodiments of the present invention are described in detail, and the embodiments are only examples of the general inventive concept, and should not be construed as limiting the scope of the present invention. Any other embodiments extended by the solution according to the invention without inventive step will be within the scope of protection of the invention for a person skilled in the art.
Claims (8)
1. A transformer capable of simulating winding deformation, comprising: the device comprises a cake-shaped winding unit (1) and a wiring bar (2);
cake winding unit (1) is detachable annular structure, includes: the coil comprises a positive coil (11) and a negative coil (12), wherein the positive coil (11) is adjacent to the negative coil (12), and the coil winding unit (1) is a deformable winding;
the wiring bar (2) is provided with plugs (21), and the plugs (21) correspond to the heads and the tails of the cake-shaped winding units (1) one by one.
2. The transformer according to claim 1, characterized in that the pie winding units (1) are continuous windings, the number of the positive pie (11) is multiple, the number of the negative pie (12) is multiple, wherein odd number segments are the negative pie (12) and even number segments are the positive pie (11).
3. The transformer according to claim 1, characterized in that the pie winding units (1) are plural.
4. The transformer according to claim 1, characterized in that the plug (21) is connected to the pancake winding unit (1) by welding.
5. The transformer of claim 1, further comprising: the device comprises a cushion block (3), a clamping piece (4), a pulling plate (5), an upper iron yoke (6) and a lower iron yoke (7);
the cushion block (3) is arranged on the cake-shaped winding unit (1);
the clamping pieces (4) are horizontally arranged at two ends of the pie-shaped winding unit (1) and are respectively connected with the upper iron yoke (6) and the lower iron yoke (7);
the cake-shaped winding unit (1) is detachably sleeved on the pulling plate (5);
the clamping piece (4) is in threaded connection with the pulling plate (5).
6. The transformer according to claim 5, characterized in that the pulling plates (5) are provided in plurality, and the distance between the pulling plates (5) is greater than or equal to the maximum outer diameter of the pie-shaped winding unit (1).
7. The transformer of claim 6, further comprising: a middle partition plate (8);
an intermediate partition plate (8) is arranged between any two adjacent pie-shaped winding units (1).
8. The transformer according to claim 1, characterized in that the pie winding units (1) are led out end to end with raw copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110262707.XA CN112992496A (en) | 2021-03-11 | 2021-03-11 | Transformer capable of simulating winding deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110262707.XA CN112992496A (en) | 2021-03-11 | 2021-03-11 | Transformer capable of simulating winding deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112992496A true CN112992496A (en) | 2021-06-18 |
Family
ID=76334911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110262707.XA Pending CN112992496A (en) | 2021-03-11 | 2021-03-11 | Transformer capable of simulating winding deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112992496A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1339679A1 (en) * | 1985-12-23 | 1987-09-23 | Всесоюзный Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Трансформаторостроения | Mock=up for investigating overvoltages in transformers |
| US6479997B1 (en) * | 1999-05-03 | 2002-11-12 | Bruker Biospin Gmbh | Electric arrangement for operation of a gradient coil with several power supplies |
| CN204390905U (en) * | 2015-02-16 | 2015-06-10 | 江西人民输变电有限公司 | Continuous cake formula founds coiling structure |
| CN105023745A (en) * | 2015-08-11 | 2015-11-04 | 鲁特电工股份有限公司 | Resin-insulation dry-type long-round-cake-shaped coil and winding method |
| CN107015077A (en) * | 2017-02-23 | 2017-08-04 | 广西电网有限责任公司电力科学研究院 | A kind of deformation of transformer winding analogue means |
-
2021
- 2021-03-11 CN CN202110262707.XA patent/CN112992496A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1339679A1 (en) * | 1985-12-23 | 1987-09-23 | Всесоюзный Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Трансформаторостроения | Mock=up for investigating overvoltages in transformers |
| US6479997B1 (en) * | 1999-05-03 | 2002-11-12 | Bruker Biospin Gmbh | Electric arrangement for operation of a gradient coil with several power supplies |
| CN204390905U (en) * | 2015-02-16 | 2015-06-10 | 江西人民输变电有限公司 | Continuous cake formula founds coiling structure |
| CN105023745A (en) * | 2015-08-11 | 2015-11-04 | 鲁特电工股份有限公司 | Resin-insulation dry-type long-round-cake-shaped coil and winding method |
| CN107015077A (en) * | 2017-02-23 | 2017-08-04 | 广西电网有限责任公司电力科学研究院 | A kind of deformation of transformer winding analogue means |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120322309A1 (en) | Magnetics assembly including transformer with intercrossed center taps, electrical connector having the same and method of making the same | |
| CN105632733A (en) | Outer framework of ring transformer, SMD transformer and manufacturing process of SMD transformer | |
| CN202693622U (en) | Power transformer test connecting device | |
| CN108828443A (en) | Intermediate relay checking table | |
| CN112992496A (en) | Transformer capable of simulating winding deformation | |
| CN110161352B (en) | Frequency response test device and method under condition of simulating turn-to-turn short circuit of transformer winding | |
| CN108447663B (en) | Transformer model | |
| CN106501750A (en) | A kind of voltage transformer site error detects secondary wiring device | |
| CN210155235U (en) | Testing arrangement of transformer core no-load performance | |
| CN211263611U (en) | Comprehensive digital rapid measuring device for electrical property of initiating explosive device | |
| CN111613432B (en) | Method for manufacturing transformer | |
| CN111554508A (en) | Manufacturing method of continuous winding transformer coil with 6 conducting wires wound in parallel | |
| CN101477157A (en) | Test method for anti-interference capability of great current mutual inductor with balance winding | |
| CN206096308U (en) | Intelligent station secondary equipment's testing arrangement | |
| CN217719263U (en) | Precision transformer framework | |
| CN209264787U (en) | A kind of discharge test conducting wire | |
| CN213069060U (en) | Automatic line-changing voltage-withstanding testing device for multi-core cable | |
| CN212207522U (en) | Single detection device and general type iron core no-load detection device applying same | |
| CN204330952U (en) | Split conductor verifying attachment | |
| CN111584230B (en) | Transposition method for parallel-wound continuous winding | |
| CN212808477U (en) | Semi-automatic wire changing device for high-voltage test of multi-core cable | |
| CN217361334U (en) | Transformer with novel lead structure | |
| CN219302500U (en) | High-voltage withstand voltage test shorting stub | |
| CN216311555U (en) | Transformer wound with large wire diameter | |
| CN210955727U (en) | Cable sheath grounding circulation simulation device and modified version transposition box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |